./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 4e7fbc69 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78ff5760-2073-4367-89be-422c1f7195df/bin/uautomizer-QkZJyEgLgS/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78ff5760-2073-4367-89be-422c1f7195df/bin/uautomizer-QkZJyEgLgS/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78ff5760-2073-4367-89be-422c1f7195df/bin/uautomizer-QkZJyEgLgS/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78ff5760-2073-4367-89be-422c1f7195df/bin/uautomizer-QkZJyEgLgS/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/loop-invgen/heapsort.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78ff5760-2073-4367-89be-422c1f7195df/bin/uautomizer-QkZJyEgLgS/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78ff5760-2073-4367-89be-422c1f7195df/bin/uautomizer-QkZJyEgLgS --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-4e7fbc6 [2022-11-23 01:50:15,300 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-23 01:50:15,302 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-23 01:50:15,345 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-23 01:50:15,345 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-23 01:50:15,349 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-23 01:50:15,351 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-23 01:50:15,354 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-23 01:50:15,356 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-23 01:50:15,361 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-23 01:50:15,362 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-23 01:50:15,363 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-23 01:50:15,363 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-23 01:50:15,364 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-23 01:50:15,365 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-23 01:50:15,366 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-23 01:50:15,367 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-23 01:50:15,368 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-23 01:50:15,369 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-23 01:50:15,371 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-23 01:50:15,372 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-23 01:50:15,374 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-23 01:50:15,375 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-23 01:50:15,375 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-23 01:50:15,379 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-23 01:50:15,379 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-23 01:50:15,379 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-23 01:50:15,380 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-23 01:50:15,381 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-23 01:50:15,382 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-23 01:50:15,382 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-23 01:50:15,388 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-23 01:50:15,390 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-23 01:50:15,391 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-23 01:50:15,392 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-23 01:50:15,393 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-23 01:50:15,393 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-23 01:50:15,394 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-23 01:50:15,394 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-23 01:50:15,398 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-23 01:50:15,398 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-23 01:50:15,399 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78ff5760-2073-4367-89be-422c1f7195df/bin/uautomizer-QkZJyEgLgS/config/svcomp-Termination-32bit-Automizer_Default.epf [2022-11-23 01:50:15,440 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-23 01:50:15,440 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-23 01:50:15,441 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-23 01:50:15,441 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-23 01:50:15,442 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-23 01:50:15,443 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-23 01:50:15,443 INFO L138 SettingsManager]: * Use SBE=true [2022-11-23 01:50:15,443 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-11-23 01:50:15,443 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-11-23 01:50:15,443 INFO L138 SettingsManager]: * Use old map elimination=false [2022-11-23 01:50:15,444 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-11-23 01:50:15,445 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-11-23 01:50:15,445 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-11-23 01:50:15,445 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-23 01:50:15,445 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-23 01:50:15,446 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-23 01:50:15,446 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-23 01:50:15,446 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-23 01:50:15,446 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-23 01:50:15,446 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-11-23 01:50:15,447 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-11-23 01:50:15,447 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-11-23 01:50:15,447 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-23 01:50:15,447 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-23 01:50:15,447 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-11-23 01:50:15,448 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-23 01:50:15,448 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-11-23 01:50:15,449 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-23 01:50:15,449 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-23 01:50:15,449 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-23 01:50:15,449 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-23 01:50:15,451 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-11-23 01:50:15,451 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_78ff5760-2073-4367-89be-422c1f7195df/bin/uautomizer-QkZJyEgLgS/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78ff5760-2073-4367-89be-422c1f7195df/bin/uautomizer-QkZJyEgLgS Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8e7c8e5dc2a9e8f11b25d1bb9948f05f37b9553e3dc9f8bd8213088dea43cb37 [2022-11-23 01:50:15,763 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-23 01:50:15,783 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-23 01:50:15,786 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-23 01:50:15,787 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-23 01:50:15,787 INFO L275 PluginConnector]: CDTParser initialized [2022-11-23 01:50:15,789 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78ff5760-2073-4367-89be-422c1f7195df/bin/uautomizer-QkZJyEgLgS/../../sv-benchmarks/c/loop-invgen/heapsort.i [2022-11-23 01:50:18,731 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-23 01:50:18,945 INFO L351 CDTParser]: Found 1 translation units. [2022-11-23 01:50:18,946 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78ff5760-2073-4367-89be-422c1f7195df/sv-benchmarks/c/loop-invgen/heapsort.i [2022-11-23 01:50:18,951 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78ff5760-2073-4367-89be-422c1f7195df/bin/uautomizer-QkZJyEgLgS/data/6da394560/d5dbf3b5d4824cb1bb7176700667ff33/FLAGaad9f6d2d [2022-11-23 01:50:18,964 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78ff5760-2073-4367-89be-422c1f7195df/bin/uautomizer-QkZJyEgLgS/data/6da394560/d5dbf3b5d4824cb1bb7176700667ff33 [2022-11-23 01:50:18,967 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-23 01:50:18,968 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-23 01:50:18,970 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-23 01:50:18,970 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-23 01:50:18,973 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-23 01:50:18,974 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 01:50:18" (1/1) ... [2022-11-23 01:50:18,975 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@732b6bd2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:50:18, skipping insertion in model container [2022-11-23 01:50:18,976 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 01:50:18" (1/1) ... [2022-11-23 01:50:18,983 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-23 01:50:18,999 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-23 01:50:19,147 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_78ff5760-2073-4367-89be-422c1f7195df/sv-benchmarks/c/loop-invgen/heapsort.i[893,906] [2022-11-23 01:50:19,161 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 01:50:19,172 INFO L203 MainTranslator]: Completed pre-run [2022-11-23 01:50:19,185 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_78ff5760-2073-4367-89be-422c1f7195df/sv-benchmarks/c/loop-invgen/heapsort.i[893,906] [2022-11-23 01:50:19,193 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 01:50:19,203 INFO L208 MainTranslator]: Completed translation [2022-11-23 01:50:19,204 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:50:19 WrapperNode [2022-11-23 01:50:19,204 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-23 01:50:19,205 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-23 01:50:19,205 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-23 01:50:19,205 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-23 01:50:19,212 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:50:19" (1/1) ... [2022-11-23 01:50:19,219 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:50:19" (1/1) ... [2022-11-23 01:50:19,241 INFO L138 Inliner]: procedures = 16, calls = 20, calls flagged for inlining = 16, calls inlined = 16, statements flattened = 158 [2022-11-23 01:50:19,242 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-23 01:50:19,242 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-23 01:50:19,242 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-23 01:50:19,243 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-23 01:50:19,251 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:50:19" (1/1) ... [2022-11-23 01:50:19,251 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:50:19" (1/1) ... [2022-11-23 01:50:19,253 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:50:19" (1/1) ... [2022-11-23 01:50:19,254 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:50:19" (1/1) ... [2022-11-23 01:50:19,260 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:50:19" (1/1) ... [2022-11-23 01:50:19,265 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:50:19" (1/1) ... [2022-11-23 01:50:19,266 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:50:19" (1/1) ... [2022-11-23 01:50:19,267 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:50:19" (1/1) ... [2022-11-23 01:50:19,269 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-23 01:50:19,270 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-23 01:50:19,270 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-23 01:50:19,270 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-23 01:50:19,271 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:50:19" (1/1) ... [2022-11-23 01:50:19,277 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-23 01:50:19,289 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78ff5760-2073-4367-89be-422c1f7195df/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 01:50:19,302 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78ff5760-2073-4367-89be-422c1f7195df/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-23 01:50:19,318 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78ff5760-2073-4367-89be-422c1f7195df/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2022-11-23 01:50:19,351 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-23 01:50:19,352 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-23 01:50:19,352 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-23 01:50:19,352 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-23 01:50:19,429 INFO L235 CfgBuilder]: Building ICFG [2022-11-23 01:50:19,431 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-23 01:50:19,672 INFO L276 CfgBuilder]: Performing block encoding [2022-11-23 01:50:19,679 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-23 01:50:19,679 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-11-23 01:50:19,681 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:50:19 BoogieIcfgContainer [2022-11-23 01:50:19,681 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-23 01:50:19,682 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-11-23 01:50:19,683 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-11-23 01:50:19,703 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-11-23 01:50:19,703 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-23 01:50:19,704 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 23.11 01:50:18" (1/3) ... [2022-11-23 01:50:19,710 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2dc765eb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 23.11 01:50:19, skipping insertion in model container [2022-11-23 01:50:19,710 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-23 01:50:19,710 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:50:19" (2/3) ... [2022-11-23 01:50:19,710 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2dc765eb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 23.11 01:50:19, skipping insertion in model container [2022-11-23 01:50:19,711 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-23 01:50:19,711 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:50:19" (3/3) ... [2022-11-23 01:50:19,712 INFO L332 chiAutomizerObserver]: Analyzing ICFG heapsort.i [2022-11-23 01:50:19,817 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2022-11-23 01:50:19,817 INFO L304 stractBuchiCegarLoop]: Hoare is false [2022-11-23 01:50:19,817 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-11-23 01:50:19,817 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-11-23 01:50:19,817 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-11-23 01:50:19,818 INFO L308 stractBuchiCegarLoop]: Difference is false [2022-11-23 01:50:19,818 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-11-23 01:50:19,818 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2022-11-23 01:50:19,823 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) [2022-11-23 01:50:19,867 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 49 [2022-11-23 01:50:19,868 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-23 01:50:19,868 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-23 01:50:19,874 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2022-11-23 01:50:19,874 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1] [2022-11-23 01:50:19,874 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2022-11-23 01:50:19,875 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) [2022-11-23 01:50:19,878 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 49 [2022-11-23 01:50:19,879 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-23 01:50:19,879 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-23 01:50:19,879 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2022-11-23 01:50:19,879 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1] [2022-11-23 01:50:19,888 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 [2022-11-23 01:50:19,888 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 [2022-11-23 01:50:19,894 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 01:50:19,894 INFO L85 PathProgramCache]: Analyzing trace with hash 925672, now seen corresponding path program 1 times [2022-11-23 01:50:19,904 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 01:50:19,904 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1752652360] [2022-11-23 01:50:19,905 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 01:50:19,905 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 01:50:20,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-23 01:50:20,001 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-23 01:50:20,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-23 01:50:20,035 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-23 01:50:20,038 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 01:50:20,038 INFO L85 PathProgramCache]: Analyzing trace with hash -947861826, now seen corresponding path program 1 times [2022-11-23 01:50:20,039 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 01:50:20,039 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [363412416] [2022-11-23 01:50:20,039 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 01:50:20,040 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 01:50:20,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 01:50:20,083 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 01:50:20,083 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 01:50:20,083 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [363412416] [2022-11-23 01:50:20,084 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [363412416] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 01:50:20,084 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 01:50:20,084 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-23 01:50:20,085 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1129252827] [2022-11-23 01:50:20,086 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 01:50:20,089 INFO L765 eck$LassoCheckResult]: loop already infeasible [2022-11-23 01:50:20,090 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 01:50:20,124 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-23 01:50:20,125 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-23 01:50:20,127 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) [2022-11-23 01:50:20,138 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 01:50:20,138 INFO L93 Difference]: Finished difference Result 57 states and 64 transitions. [2022-11-23 01:50:20,140 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 57 states and 64 transitions. [2022-11-23 01:50:20,142 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 35 [2022-11-23 01:50:20,146 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 57 states to 39 states and 45 transitions. [2022-11-23 01:50:20,147 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 39 [2022-11-23 01:50:20,148 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 39 [2022-11-23 01:50:20,148 INFO L73 IsDeterministic]: Start isDeterministic. Operand 39 states and 45 transitions. [2022-11-23 01:50:20,149 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-23 01:50:20,149 INFO L218 hiAutomatonCegarLoop]: Abstraction has 39 states and 45 transitions. [2022-11-23 01:50:20,166 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states and 45 transitions. [2022-11-23 01:50:20,175 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39. [2022-11-23 01:50:20,176 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) [2022-11-23 01:50:20,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 45 transitions. [2022-11-23 01:50:20,179 INFO L240 hiAutomatonCegarLoop]: Abstraction has 39 states and 45 transitions. [2022-11-23 01:50:20,180 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-23 01:50:20,184 INFO L428 stractBuchiCegarLoop]: Abstraction has 39 states and 45 transitions. [2022-11-23 01:50:20,184 INFO L335 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2022-11-23 01:50:20,184 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 39 states and 45 transitions. [2022-11-23 01:50:20,185 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 35 [2022-11-23 01:50:20,185 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-23 01:50:20,185 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-23 01:50:20,186 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2022-11-23 01:50:20,186 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1] [2022-11-23 01:50:20,186 INFO L748 eck$LassoCheckResult]: Stem: 155#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(9, 2); 135#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;main_#in~argc#1, main_#in~argv#1.base, main_#in~argv#1.offset := #in~argc#1, #in~argv#1.base, #in~argv#1.offset;havoc main_#res#1;havoc main_#t~nondet1#1, main_#t~post2#1, main_#t~post3#1, main_#t~nondet4#1, main_#t~nondet5#1, main_#t~post6#1, main_#t~post7#1, main_~argc#1, main_~argv#1.base, main_~argv#1.offset, main_~n~0#1, main_~l~0#1, main_~r~0#1, main_~i~0#1, main_~j~0#1;main_~argc#1 := main_#in~argc#1;main_~argv#1.base, main_~argv#1.offset := main_#in~argv#1.base, main_#in~argv#1.offset;havoc main_~n~0#1;havoc main_~l~0#1;havoc main_~r~0#1;havoc main_~i~0#1;havoc main_~j~0#1;main_~n~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1; 136#L27 assume !!(1 <= main_~n~0#1 && main_~n~0#1 <= 1000000);main_~l~0#1 := 1 + (if main_~n~0#1 < 0 && 0 != main_~n~0#1 % 2 then 1 + main_~n~0#1 / 2 else main_~n~0#1 / 2);main_~r~0#1 := main_~n~0#1; 124#L30 assume !(main_~l~0#1 > 1);main_#t~post3#1 := main_~r~0#1;main_~r~0#1 := main_#t~post3#1 - 1;havoc main_#t~post3#1; 125#L59-1 [2022-11-23 01:50:20,187 INFO L750 eck$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 [2022-11-23 01:50:20,187 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 01:50:20,188 INFO L85 PathProgramCache]: Analyzing trace with hash 925672, now seen corresponding path program 2 times [2022-11-23 01:50:20,188 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 01:50:20,188 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [509605633] [2022-11-23 01:50:20,188 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 01:50:20,189 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 01:50:20,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-23 01:50:20,202 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-23 01:50:20,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-23 01:50:20,215 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-23 01:50:20,216 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 01:50:20,216 INFO L85 PathProgramCache]: Analyzing trace with hash -145650952, now seen corresponding path program 1 times [2022-11-23 01:50:20,216 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 01:50:20,217 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2111550295] [2022-11-23 01:50:20,217 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 01:50:20,217 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 01:50:20,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-23 01:50:20,228 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-23 01:50:20,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-23 01:50:20,243 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-23 01:50:20,244 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 01:50:20,244 INFO L85 PathProgramCache]: Analyzing trace with hash 1814169905, now seen corresponding path program 1 times [2022-11-23 01:50:20,245 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 01:50:20,245 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [600883575] [2022-11-23 01:50:20,245 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 01:50:20,245 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 01:50:20,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 01:50:20,318 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 01:50:20,319 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 01:50:20,319 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [600883575] [2022-11-23 01:50:20,319 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [600883575] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 01:50:20,320 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 01:50:20,320 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 01:50:20,320 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1471333693] [2022-11-23 01:50:20,320 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 01:50:20,585 INFO L210 LassoAnalysis]: Preferences: [2022-11-23 01:50:20,585 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-23 01:50:20,585 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-23 01:50:20,586 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-23 01:50:20,586 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-11-23 01:50:20,586 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-23 01:50:20,586 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-23 01:50:20,586 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-23 01:50:20,586 INFO L133 ssoRankerPreferences]: Filename of dumped script: heapsort.i_Iteration2_Loop [2022-11-23 01:50:20,587 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-23 01:50:20,587 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-23 01:50:20,606 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-23 01:50:20,659 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-23 01:50:20,662 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-23 01:50:20,801 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-23 01:50:20,801 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-11-23 01:50:20,804 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-23 01:50:20,804 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78ff5760-2073-4367-89be-422c1f7195df/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 01:50:20,825 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78ff5760-2073-4367-89be-422c1f7195df/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-23 01:50:20,852 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-23 01:50:20,852 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-23 01:50:20,867 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78ff5760-2073-4367-89be-422c1f7195df/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2022-11-23 01:50:20,894 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78ff5760-2073-4367-89be-422c1f7195df/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2022-11-23 01:50:20,895 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-23 01:50:20,896 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78ff5760-2073-4367-89be-422c1f7195df/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 01:50:20,899 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78ff5760-2073-4367-89be-422c1f7195df/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-23 01:50:20,906 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78ff5760-2073-4367-89be-422c1f7195df/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2022-11-23 01:50:20,907 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-11-23 01:50:20,907 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-23 01:50:21,159 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-11-23 01:50:21,163 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78ff5760-2073-4367-89be-422c1f7195df/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2022-11-23 01:50:21,164 INFO L210 LassoAnalysis]: Preferences: [2022-11-23 01:50:21,164 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-23 01:50:21,164 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-23 01:50:21,164 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-23 01:50:21,164 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-11-23 01:50:21,164 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-23 01:50:21,164 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-23 01:50:21,165 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-23 01:50:21,165 INFO L133 ssoRankerPreferences]: Filename of dumped script: heapsort.i_Iteration2_Loop [2022-11-23 01:50:21,165 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-23 01:50:21,165 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-23 01:50:21,167 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-23 01:50:21,179 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-23 01:50:21,196 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-23 01:50:21,269 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-23 01:50:21,274 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-11-23 01:50:21,275 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-23 01:50:21,276 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78ff5760-2073-4367-89be-422c1f7195df/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 01:50:21,277 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78ff5760-2073-4367-89be-422c1f7195df/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-23 01:50:21,279 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78ff5760-2073-4367-89be-422c1f7195df/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2022-11-23 01:50:21,280 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 [2022-11-23 01:50:21,295 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-23 01:50:21,296 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-23 01:50:21,296 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-23 01:50:21,296 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-23 01:50:21,296 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-23 01:50:21,299 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-23 01:50:21,300 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-23 01:50:21,321 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-23 01:50:21,334 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78ff5760-2073-4367-89be-422c1f7195df/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2022-11-23 01:50:21,334 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-23 01:50:21,335 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78ff5760-2073-4367-89be-422c1f7195df/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 01:50:21,336 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78ff5760-2073-4367-89be-422c1f7195df/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-23 01:50:21,350 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 [2022-11-23 01:50:21,363 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-23 01:50:21,363 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-23 01:50:21,363 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-23 01:50:21,363 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-23 01:50:21,364 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-23 01:50:21,367 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-23 01:50:21,367 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-23 01:50:21,370 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78ff5760-2073-4367-89be-422c1f7195df/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2022-11-23 01:50:21,385 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-11-23 01:50:21,394 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2022-11-23 01:50:21,394 INFO L444 ModelExtractionUtils]: 4 out of 7 variables were initially zero. Simplification set additionally 1 variables to zero. [2022-11-23 01:50:21,396 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-23 01:50:21,396 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78ff5760-2073-4367-89be-422c1f7195df/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 01:50:21,399 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78ff5760-2073-4367-89be-422c1f7195df/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-23 01:50:21,405 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-11-23 01:50:21,406 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-11-23 01:50:21,406 INFO L513 LassoAnalysis]: Proved termination. [2022-11-23 01:50:21,406 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 [] [2022-11-23 01:50:21,412 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78ff5760-2073-4367-89be-422c1f7195df/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2022-11-23 01:50:21,413 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78ff5760-2073-4367-89be-422c1f7195df/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2022-11-23 01:50:21,416 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-11-23 01:50:21,441 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 01:50:21,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 01:50:21,475 INFO L263 TraceCheckSpWp]: Trace formula consists of 42 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-23 01:50:21,477 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 01:50:21,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 01:50:21,506 INFO L263 TraceCheckSpWp]: Trace formula consists of 21 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-23 01:50:21,508 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 01:50:21,553 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 01:50:21,557 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 [2022-11-23 01:50:21,558 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) [2022-11-23 01:50:21,613 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. [2022-11-23 01:50:21,615 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 [2022-11-23 01:50:21,616 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) [2022-11-23 01:50:21,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 86 transitions. [2022-11-23 01:50:21,618 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 86 transitions. Stem has 4 letters. Loop has 7 letters. [2022-11-23 01:50:21,619 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-23 01:50:21,619 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 86 transitions. Stem has 11 letters. Loop has 7 letters. [2022-11-23 01:50:21,620 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-23 01:50:21,620 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 86 transitions. Stem has 4 letters. Loop has 14 letters. [2022-11-23 01:50:21,620 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-23 01:50:21,620 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 112 states and 130 transitions. [2022-11-23 01:50:21,623 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 66 [2022-11-23 01:50:21,625 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 112 states to 108 states and 126 transitions. [2022-11-23 01:50:21,625 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 71 [2022-11-23 01:50:21,625 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 72 [2022-11-23 01:50:21,626 INFO L73 IsDeterministic]: Start isDeterministic. Operand 108 states and 126 transitions. [2022-11-23 01:50:21,626 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-11-23 01:50:21,626 INFO L218 hiAutomatonCegarLoop]: Abstraction has 108 states and 126 transitions. [2022-11-23 01:50:21,627 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108 states and 126 transitions. [2022-11-23 01:50:21,632 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108 to 107. [2022-11-23 01:50:21,632 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) [2022-11-23 01:50:21,634 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 107 states and 124 transitions. [2022-11-23 01:50:21,634 INFO L240 hiAutomatonCegarLoop]: Abstraction has 107 states and 124 transitions. [2022-11-23 01:50:21,635 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 01:50:21,635 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 01:50:21,635 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 01:50:21,636 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) [2022-11-23 01:50:21,656 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 01:50:21,656 INFO L93 Difference]: Finished difference Result 129 states and 148 transitions. [2022-11-23 01:50:21,657 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 129 states and 148 transitions. [2022-11-23 01:50:21,659 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 93 [2022-11-23 01:50:21,661 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 129 states to 98 states and 112 transitions. [2022-11-23 01:50:21,661 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 98 [2022-11-23 01:50:21,661 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 98 [2022-11-23 01:50:21,661 INFO L73 IsDeterministic]: Start isDeterministic. Operand 98 states and 112 transitions. [2022-11-23 01:50:21,662 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-23 01:50:21,662 INFO L218 hiAutomatonCegarLoop]: Abstraction has 98 states and 112 transitions. [2022-11-23 01:50:21,663 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states and 112 transitions. [2022-11-23 01:50:21,666 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 66. [2022-11-23 01:50:21,666 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) [2022-11-23 01:50:21,667 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 76 transitions. [2022-11-23 01:50:21,667 INFO L240 hiAutomatonCegarLoop]: Abstraction has 66 states and 76 transitions. [2022-11-23 01:50:21,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 01:50:21,669 INFO L428 stractBuchiCegarLoop]: Abstraction has 66 states and 76 transitions. [2022-11-23 01:50:21,669 INFO L335 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2022-11-23 01:50:21,669 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 66 states and 76 transitions. [2022-11-23 01:50:21,670 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 62 [2022-11-23 01:50:21,670 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-23 01:50:21,670 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-23 01:50:21,671 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2022-11-23 01:50:21,671 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1] [2022-11-23 01:50:21,671 INFO L748 eck$LassoCheckResult]: Stem: 599#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(9, 2); 578#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;main_#in~argc#1, main_#in~argv#1.base, main_#in~argv#1.offset := #in~argc#1, #in~argv#1.base, #in~argv#1.offset;havoc main_#res#1;havoc main_#t~nondet1#1, main_#t~post2#1, main_#t~post3#1, main_#t~nondet4#1, main_#t~nondet5#1, main_#t~post6#1, main_#t~post7#1, main_~argc#1, main_~argv#1.base, main_~argv#1.offset, main_~n~0#1, main_~l~0#1, main_~r~0#1, main_~i~0#1, main_~j~0#1;main_~argc#1 := main_#in~argc#1;main_~argv#1.base, main_~argv#1.offset := main_#in~argv#1.base, main_#in~argv#1.offset;havoc main_~n~0#1;havoc main_~l~0#1;havoc main_~r~0#1;havoc main_~i~0#1;havoc main_~j~0#1;main_~n~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1; 579#L27 assume !!(1 <= main_~n~0#1 && main_~n~0#1 <= 1000000);main_~l~0#1 := 1 + (if main_~n~0#1 < 0 && 0 != main_~n~0#1 % 2 then 1 + main_~n~0#1 / 2 else main_~n~0#1 / 2);main_~r~0#1 := main_~n~0#1; 567#L30 assume main_~l~0#1 > 1;main_#t~post2#1 := main_~l~0#1;main_~l~0#1 := main_#t~post2#1 - 1;havoc main_#t~post2#1; 568#L59-1 [2022-11-23 01:50:21,671 INFO L750 eck$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 [2022-11-23 01:50:21,672 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 01:50:21,672 INFO L85 PathProgramCache]: Analyzing trace with hash 925670, now seen corresponding path program 1 times [2022-11-23 01:50:21,672 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 01:50:21,673 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [72612053] [2022-11-23 01:50:21,673 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 01:50:21,673 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 01:50:21,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-23 01:50:21,685 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-23 01:50:21,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-23 01:50:21,696 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-23 01:50:21,697 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 01:50:21,697 INFO L85 PathProgramCache]: Analyzing trace with hash -145650952, now seen corresponding path program 2 times [2022-11-23 01:50:21,698 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 01:50:21,698 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1464722504] [2022-11-23 01:50:21,698 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 01:50:21,698 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 01:50:21,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-23 01:50:21,706 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-23 01:50:21,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-23 01:50:21,716 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-23 01:50:21,717 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 01:50:21,717 INFO L85 PathProgramCache]: Analyzing trace with hash -1671450765, now seen corresponding path program 1 times [2022-11-23 01:50:21,717 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 01:50:21,717 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [425757778] [2022-11-23 01:50:21,717 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 01:50:21,718 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 01:50:21,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 01:50:21,852 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 01:50:21,852 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 01:50:21,853 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [425757778] [2022-11-23 01:50:21,853 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [425757778] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 01:50:21,853 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 01:50:21,853 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-23 01:50:21,853 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1590008323] [2022-11-23 01:50:21,854 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 01:50:22,005 INFO L210 LassoAnalysis]: Preferences: [2022-11-23 01:50:22,005 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-23 01:50:22,005 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-23 01:50:22,005 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-23 01:50:22,005 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-11-23 01:50:22,005 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-23 01:50:22,006 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-23 01:50:22,006 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-23 01:50:22,006 INFO L133 ssoRankerPreferences]: Filename of dumped script: heapsort.i_Iteration3_Loop [2022-11-23 01:50:22,006 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-23 01:50:22,006 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-23 01:50:22,008 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-23 01:50:22,011 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-23 01:50:22,018 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-23 01:50:22,109 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-23 01:50:22,110 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-11-23 01:50:22,110 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-23 01:50:22,110 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78ff5760-2073-4367-89be-422c1f7195df/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 01:50:22,113 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78ff5760-2073-4367-89be-422c1f7195df/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-23 01:50:22,122 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-23 01:50:22,122 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-23 01:50:22,136 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78ff5760-2073-4367-89be-422c1f7195df/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2022-11-23 01:50:22,141 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-23 01:50:22,141 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: [] [2022-11-23 01:50:22,150 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78ff5760-2073-4367-89be-422c1f7195df/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2022-11-23 01:50:22,150 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-23 01:50:22,150 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78ff5760-2073-4367-89be-422c1f7195df/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 01:50:22,152 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78ff5760-2073-4367-89be-422c1f7195df/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-23 01:50:22,157 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-23 01:50:22,157 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-23 01:50:22,165 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78ff5760-2073-4367-89be-422c1f7195df/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2022-11-23 01:50:22,184 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-23 01:50:22,184 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: [] [2022-11-23 01:50:22,188 ERROR L418 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78ff5760-2073-4367-89be-422c1f7195df/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Exception during sending of exit command (exit): Broken pipe [2022-11-23 01:50:22,190 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78ff5760-2073-4367-89be-422c1f7195df/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2022-11-23 01:50:22,191 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-23 01:50:22,191 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78ff5760-2073-4367-89be-422c1f7195df/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 01:50:22,192 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78ff5760-2073-4367-89be-422c1f7195df/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-23 01:50:22,201 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78ff5760-2073-4367-89be-422c1f7195df/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2022-11-23 01:50:22,209 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-23 01:50:22,209 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-23 01:50:22,281 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78ff5760-2073-4367-89be-422c1f7195df/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Ended with exit code 0 [2022-11-23 01:50:22,281 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-23 01:50:22,282 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78ff5760-2073-4367-89be-422c1f7195df/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 01:50:22,297 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78ff5760-2073-4367-89be-422c1f7195df/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-23 01:50:22,344 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-11-23 01:50:22,344 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-23 01:50:22,356 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78ff5760-2073-4367-89be-422c1f7195df/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2022-11-23 01:50:22,643 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-11-23 01:50:22,653 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78ff5760-2073-4367-89be-422c1f7195df/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2022-11-23 01:50:22,653 INFO L210 LassoAnalysis]: Preferences: [2022-11-23 01:50:22,653 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-23 01:50:22,653 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-23 01:50:22,653 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-23 01:50:22,653 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-11-23 01:50:22,654 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-23 01:50:22,654 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-23 01:50:22,654 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-23 01:50:22,654 INFO L133 ssoRankerPreferences]: Filename of dumped script: heapsort.i_Iteration3_Loop [2022-11-23 01:50:22,654 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-23 01:50:22,654 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-23 01:50:22,656 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-23 01:50:22,662 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-23 01:50:22,677 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-23 01:50:22,748 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-23 01:50:22,748 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-11-23 01:50:22,748 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-23 01:50:22,749 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78ff5760-2073-4367-89be-422c1f7195df/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 01:50:22,754 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78ff5760-2073-4367-89be-422c1f7195df/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-23 01:50:22,761 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78ff5760-2073-4367-89be-422c1f7195df/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2022-11-23 01:50:22,762 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 [2022-11-23 01:50:22,774 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-23 01:50:22,774 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-23 01:50:22,775 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-23 01:50:22,775 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-23 01:50:22,775 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-23 01:50:22,775 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-23 01:50:22,776 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-23 01:50:22,797 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-23 01:50:22,805 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78ff5760-2073-4367-89be-422c1f7195df/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2022-11-23 01:50:22,806 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-23 01:50:22,806 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78ff5760-2073-4367-89be-422c1f7195df/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 01:50:22,807 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78ff5760-2073-4367-89be-422c1f7195df/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-23 01:50:22,822 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 [2022-11-23 01:50:22,835 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-23 01:50:22,836 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-23 01:50:22,836 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-23 01:50:22,836 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-23 01:50:22,836 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-23 01:50:22,839 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-23 01:50:22,839 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-23 01:50:22,842 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78ff5760-2073-4367-89be-422c1f7195df/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2022-11-23 01:50:22,857 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-11-23 01:50:22,862 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2022-11-23 01:50:22,863 INFO L444 ModelExtractionUtils]: 4 out of 7 variables were initially zero. Simplification set additionally 1 variables to zero. [2022-11-23 01:50:22,863 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-23 01:50:22,863 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78ff5760-2073-4367-89be-422c1f7195df/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 01:50:22,869 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78ff5760-2073-4367-89be-422c1f7195df/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-23 01:50:22,875 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-11-23 01:50:22,876 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-11-23 01:50:22,876 INFO L513 LassoAnalysis]: Proved termination. [2022-11-23 01:50:22,876 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 [] [2022-11-23 01:50:22,878 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78ff5760-2073-4367-89be-422c1f7195df/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2022-11-23 01:50:22,885 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78ff5760-2073-4367-89be-422c1f7195df/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2022-11-23 01:50:22,886 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-11-23 01:50:22,900 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 01:50:22,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 01:50:22,924 INFO L263 TraceCheckSpWp]: Trace formula consists of 42 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-23 01:50:22,925 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 01:50:22,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 01:50:22,983 INFO L263 TraceCheckSpWp]: Trace formula consists of 21 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-23 01:50:22,984 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 01:50:23,032 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78ff5760-2073-4367-89be-422c1f7195df/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2022-11-23 01:50:23,058 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78ff5760-2073-4367-89be-422c1f7195df/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2022-11-23 01:50:23,061 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 01:50:23,062 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 [2022-11-23 01:50:23,063 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) [2022-11-23 01:50:23,105 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. [2022-11-23 01:50:23,109 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 [2022-11-23 01:50:23,111 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) [2022-11-23 01:50:23,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 81 transitions. [2022-11-23 01:50:23,112 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 81 transitions. Stem has 4 letters. Loop has 7 letters. [2022-11-23 01:50:23,113 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-23 01:50:23,113 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 81 transitions. Stem has 11 letters. Loop has 7 letters. [2022-11-23 01:50:23,113 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-23 01:50:23,113 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 81 transitions. Stem has 4 letters. Loop has 14 letters. [2022-11-23 01:50:23,114 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-23 01:50:23,114 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 160 states and 185 transitions. [2022-11-23 01:50:23,119 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 87 [2022-11-23 01:50:23,124 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 160 states to 125 states and 145 transitions. [2022-11-23 01:50:23,125 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 93 [2022-11-23 01:50:23,126 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 94 [2022-11-23 01:50:23,126 INFO L73 IsDeterministic]: Start isDeterministic. Operand 125 states and 145 transitions. [2022-11-23 01:50:23,126 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-11-23 01:50:23,126 INFO L218 hiAutomatonCegarLoop]: Abstraction has 125 states and 145 transitions. [2022-11-23 01:50:23,127 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 125 states and 145 transitions. [2022-11-23 01:50:23,130 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 125 to 67. [2022-11-23 01:50:23,130 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) [2022-11-23 01:50:23,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 78 transitions. [2022-11-23 01:50:23,131 INFO L240 hiAutomatonCegarLoop]: Abstraction has 67 states and 78 transitions. [2022-11-23 01:50:23,131 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 01:50:23,131 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-23 01:50:23,132 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-23 01:50:23,132 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) [2022-11-23 01:50:23,310 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 01:50:23,311 INFO L93 Difference]: Finished difference Result 207 states and 231 transitions. [2022-11-23 01:50:23,311 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 207 states and 231 transitions. [2022-11-23 01:50:23,314 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 128 [2022-11-23 01:50:23,316 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 207 states to 207 states and 231 transitions. [2022-11-23 01:50:23,317 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 155 [2022-11-23 01:50:23,317 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 155 [2022-11-23 01:50:23,318 INFO L73 IsDeterministic]: Start isDeterministic. Operand 207 states and 231 transitions. [2022-11-23 01:50:23,322 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-11-23 01:50:23,322 INFO L218 hiAutomatonCegarLoop]: Abstraction has 207 states and 231 transitions. [2022-11-23 01:50:23,323 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 207 states and 231 transitions. [2022-11-23 01:50:23,334 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 207 to 69. [2022-11-23 01:50:23,336 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) [2022-11-23 01:50:23,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 80 transitions. [2022-11-23 01:50:23,341 INFO L240 hiAutomatonCegarLoop]: Abstraction has 69 states and 80 transitions. [2022-11-23 01:50:23,341 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-23 01:50:23,342 INFO L428 stractBuchiCegarLoop]: Abstraction has 69 states and 80 transitions. [2022-11-23 01:50:23,343 INFO L335 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2022-11-23 01:50:23,343 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 69 states and 80 transitions. [2022-11-23 01:50:23,344 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 31 [2022-11-23 01:50:23,344 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-23 01:50:23,344 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-23 01:50:23,345 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2022-11-23 01:50:23,345 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1] [2022-11-23 01:50:23,345 INFO L748 eck$LassoCheckResult]: Stem: 1184#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(9, 2); 1147#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;main_#in~argc#1, main_#in~argv#1.base, main_#in~argv#1.offset := #in~argc#1, #in~argv#1.base, #in~argv#1.offset;havoc main_#res#1;havoc main_#t~nondet1#1, main_#t~post2#1, main_#t~post3#1, main_#t~nondet4#1, main_#t~nondet5#1, main_#t~post6#1, main_#t~post7#1, main_~argc#1, main_~argv#1.base, main_~argv#1.offset, main_~n~0#1, main_~l~0#1, main_~r~0#1, main_~i~0#1, main_~j~0#1;main_~argc#1 := main_#in~argc#1;main_~argv#1.base, main_~argv#1.offset := main_#in~argv#1.base, main_#in~argv#1.offset;havoc main_~n~0#1;havoc main_~l~0#1;havoc main_~r~0#1;havoc main_~i~0#1;havoc main_~j~0#1;main_~n~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1; 1148#L27 assume !!(1 <= main_~n~0#1 && main_~n~0#1 <= 1000000);main_~l~0#1 := 1 + (if main_~n~0#1 < 0 && 0 != main_~n~0#1 % 2 then 1 + main_~n~0#1 / 2 else main_~n~0#1 / 2);main_~r~0#1 := main_~n~0#1; 1129#L30 assume !(main_~l~0#1 > 1);main_#t~post3#1 := main_~r~0#1;main_~r~0#1 := main_#t~post3#1 - 1;havoc main_#t~post3#1; 1131#L59-1 [2022-11-23 01:50:23,346 INFO L750 eck$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 [2022-11-23 01:50:23,346 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 01:50:23,347 INFO L85 PathProgramCache]: Analyzing trace with hash 925672, now seen corresponding path program 3 times [2022-11-23 01:50:23,347 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 01:50:23,347 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [893212661] [2022-11-23 01:50:23,347 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 01:50:23,348 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 01:50:23,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-23 01:50:23,367 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-23 01:50:23,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-23 01:50:23,375 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-23 01:50:23,382 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 01:50:23,382 INFO L85 PathProgramCache]: Analyzing trace with hash -124656242, now seen corresponding path program 1 times [2022-11-23 01:50:23,382 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 01:50:23,383 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [660817866] [2022-11-23 01:50:23,383 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 01:50:23,383 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 01:50:23,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 01:50:23,418 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 01:50:23,418 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 01:50:23,419 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [660817866] [2022-11-23 01:50:23,419 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [660817866] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 01:50:23,419 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 01:50:23,419 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 01:50:23,419 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2018455720] [2022-11-23 01:50:23,420 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 01:50:23,420 INFO L765 eck$LassoCheckResult]: loop already infeasible [2022-11-23 01:50:23,420 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 01:50:23,420 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-23 01:50:23,421 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-23 01:50:23,421 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) [2022-11-23 01:50:23,507 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 01:50:23,507 INFO L93 Difference]: Finished difference Result 129 states and 146 transitions. [2022-11-23 01:50:23,507 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 129 states and 146 transitions. [2022-11-23 01:50:23,508 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 61 [2022-11-23 01:50:23,509 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 129 states to 128 states and 145 transitions. [2022-11-23 01:50:23,509 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 67 [2022-11-23 01:50:23,509 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 67 [2022-11-23 01:50:23,509 INFO L73 IsDeterministic]: Start isDeterministic. Operand 128 states and 145 transitions. [2022-11-23 01:50:23,510 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-11-23 01:50:23,510 INFO L218 hiAutomatonCegarLoop]: Abstraction has 128 states and 145 transitions. [2022-11-23 01:50:23,510 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 128 states and 145 transitions. [2022-11-23 01:50:23,511 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 128 to 69. [2022-11-23 01:50:23,512 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) [2022-11-23 01:50:23,512 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 80 transitions. [2022-11-23 01:50:23,512 INFO L240 hiAutomatonCegarLoop]: Abstraction has 69 states and 80 transitions. [2022-11-23 01:50:23,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-23 01:50:23,514 INFO L428 stractBuchiCegarLoop]: Abstraction has 69 states and 80 transitions. [2022-11-23 01:50:23,514 INFO L335 stractBuchiCegarLoop]: ======== Iteration 5 ============ [2022-11-23 01:50:23,514 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 69 states and 80 transitions. [2022-11-23 01:50:23,514 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 32 [2022-11-23 01:50:23,515 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-23 01:50:23,515 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-23 01:50:23,515 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2022-11-23 01:50:23,515 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 01:50:23,516 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 [2022-11-23 01:50:23,516 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 [2022-11-23 01:50:23,516 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 01:50:23,516 INFO L85 PathProgramCache]: Analyzing trace with hash 925672, now seen corresponding path program 4 times [2022-11-23 01:50:23,517 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 01:50:23,517 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1399212908] [2022-11-23 01:50:23,517 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 01:50:23,517 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 01:50:23,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-23 01:50:23,524 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-23 01:50:23,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-23 01:50:23,530 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-23 01:50:23,530 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 01:50:23,531 INFO L85 PathProgramCache]: Analyzing trace with hash -470789538, now seen corresponding path program 1 times [2022-11-23 01:50:23,531 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 01:50:23,531 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [664711221] [2022-11-23 01:50:23,531 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 01:50:23,531 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 01:50:23,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-23 01:50:23,539 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-23 01:50:23,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-23 01:50:23,547 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-23 01:50:23,547 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 01:50:23,548 INFO L85 PathProgramCache]: Analyzing trace with hash 1515786757, now seen corresponding path program 1 times [2022-11-23 01:50:23,548 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 01:50:23,548 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1751697434] [2022-11-23 01:50:23,548 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 01:50:23,548 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 01:50:23,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 01:50:23,637 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 01:50:23,638 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 01:50:23,638 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1751697434] [2022-11-23 01:50:23,638 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1751697434] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 01:50:23,638 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 01:50:23,639 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-23 01:50:23,639 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2077803628] [2022-11-23 01:50:23,639 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 01:50:23,849 INFO L210 LassoAnalysis]: Preferences: [2022-11-23 01:50:23,849 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-23 01:50:23,849 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-23 01:50:23,849 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-23 01:50:23,849 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-11-23 01:50:23,849 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-23 01:50:23,849 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-23 01:50:23,850 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-23 01:50:23,850 INFO L133 ssoRankerPreferences]: Filename of dumped script: heapsort.i_Iteration5_Loop [2022-11-23 01:50:23,850 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-23 01:50:23,850 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-23 01:50:23,851 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-23 01:50:23,858 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-23 01:50:23,862 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-23 01:50:23,885 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-23 01:50:23,965 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-23 01:50:23,965 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-11-23 01:50:23,965 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-23 01:50:23,965 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78ff5760-2073-4367-89be-422c1f7195df/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 01:50:23,966 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78ff5760-2073-4367-89be-422c1f7195df/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-23 01:50:23,973 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78ff5760-2073-4367-89be-422c1f7195df/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2022-11-23 01:50:23,973 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-23 01:50:23,974 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-23 01:50:23,992 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-23 01:50:23,992 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: [] [2022-11-23 01:50:23,997 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78ff5760-2073-4367-89be-422c1f7195df/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0 [2022-11-23 01:50:23,997 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-23 01:50:23,998 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78ff5760-2073-4367-89be-422c1f7195df/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 01:50:23,998 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78ff5760-2073-4367-89be-422c1f7195df/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-23 01:50:24,000 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78ff5760-2073-4367-89be-422c1f7195df/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2022-11-23 01:50:24,001 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-23 01:50:24,001 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-23 01:50:24,019 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-23 01:50:24,019 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: [] [2022-11-23 01:50:24,022 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78ff5760-2073-4367-89be-422c1f7195df/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Forceful destruction successful, exit code 0 [2022-11-23 01:50:24,022 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-23 01:50:24,022 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78ff5760-2073-4367-89be-422c1f7195df/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 01:50:24,023 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78ff5760-2073-4367-89be-422c1f7195df/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-23 01:50:24,026 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78ff5760-2073-4367-89be-422c1f7195df/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2022-11-23 01:50:24,026 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-23 01:50:24,027 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-23 01:50:24,077 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78ff5760-2073-4367-89be-422c1f7195df/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Forceful destruction successful, exit code 0 [2022-11-23 01:50:24,077 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-23 01:50:24,077 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78ff5760-2073-4367-89be-422c1f7195df/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 01:50:24,078 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78ff5760-2073-4367-89be-422c1f7195df/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-23 01:50:24,090 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-11-23 01:50:24,090 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-23 01:50:24,095 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78ff5760-2073-4367-89be-422c1f7195df/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2022-11-23 01:50:24,506 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-11-23 01:50:24,511 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78ff5760-2073-4367-89be-422c1f7195df/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Forceful destruction successful, exit code 0 [2022-11-23 01:50:24,511 INFO L210 LassoAnalysis]: Preferences: [2022-11-23 01:50:24,511 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-23 01:50:24,511 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-23 01:50:24,511 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-23 01:50:24,511 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-11-23 01:50:24,511 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-23 01:50:24,511 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-23 01:50:24,511 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-23 01:50:24,511 INFO L133 ssoRankerPreferences]: Filename of dumped script: heapsort.i_Iteration5_Loop [2022-11-23 01:50:24,511 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-23 01:50:24,512 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-23 01:50:24,513 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-23 01:50:24,539 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-23 01:50:24,542 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-23 01:50:24,549 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-23 01:50:24,628 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-23 01:50:24,628 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-11-23 01:50:24,628 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-23 01:50:24,628 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78ff5760-2073-4367-89be-422c1f7195df/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 01:50:24,633 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78ff5760-2073-4367-89be-422c1f7195df/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-23 01:50:24,641 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 [2022-11-23 01:50:24,642 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78ff5760-2073-4367-89be-422c1f7195df/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2022-11-23 01:50:24,654 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-23 01:50:24,654 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-23 01:50:24,654 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-23 01:50:24,654 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-23 01:50:24,655 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-23 01:50:24,657 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-23 01:50:24,657 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-23 01:50:24,667 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-11-23 01:50:24,671 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2022-11-23 01:50:24,671 INFO L444 ModelExtractionUtils]: 5 out of 7 variables were initially zero. Simplification set additionally 0 variables to zero. [2022-11-23 01:50:24,671 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-23 01:50:24,671 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78ff5760-2073-4367-89be-422c1f7195df/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 01:50:24,673 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78ff5760-2073-4367-89be-422c1f7195df/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-23 01:50:24,686 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-11-23 01:50:24,686 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-11-23 01:50:24,686 INFO L513 LassoAnalysis]: Proved termination. [2022-11-23 01:50:24,687 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 [] [2022-11-23 01:50:24,690 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78ff5760-2073-4367-89be-422c1f7195df/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2022-11-23 01:50:24,695 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78ff5760-2073-4367-89be-422c1f7195df/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Forceful destruction successful, exit code 0 [2022-11-23 01:50:24,696 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-11-23 01:50:24,712 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 01:50:24,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 01:50:24,724 INFO L263 TraceCheckSpWp]: Trace formula consists of 42 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-23 01:50:24,725 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 01:50:24,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 01:50:24,747 INFO L263 TraceCheckSpWp]: Trace formula consists of 34 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-23 01:50:24,753 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 01:50:24,831 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 01:50:24,832 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 [2022-11-23 01:50:24,833 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) [2022-11-23 01:50:24,872 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. [2022-11-23 01:50:24,873 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 [2022-11-23 01:50:24,874 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) [2022-11-23 01:50:24,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 80 transitions. [2022-11-23 01:50:24,875 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 80 transitions. Stem has 4 letters. Loop has 14 letters. [2022-11-23 01:50:24,876 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-23 01:50:24,876 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 80 transitions. Stem has 18 letters. Loop has 14 letters. [2022-11-23 01:50:24,877 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-23 01:50:24,878 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 80 transitions. Stem has 4 letters. Loop has 28 letters. [2022-11-23 01:50:24,880 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-23 01:50:24,880 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 133 states and 153 transitions. [2022-11-23 01:50:24,881 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 57 [2022-11-23 01:50:24,882 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 133 states to 128 states and 147 transitions. [2022-11-23 01:50:24,883 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 63 [2022-11-23 01:50:24,883 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 64 [2022-11-23 01:50:24,883 INFO L73 IsDeterministic]: Start isDeterministic. Operand 128 states and 147 transitions. [2022-11-23 01:50:24,884 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-11-23 01:50:24,885 INFO L218 hiAutomatonCegarLoop]: Abstraction has 128 states and 147 transitions. [2022-11-23 01:50:24,885 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 128 states and 147 transitions. [2022-11-23 01:50:24,896 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 128 to 127. [2022-11-23 01:50:24,896 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) [2022-11-23 01:50:24,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127 states to 127 states and 146 transitions. [2022-11-23 01:50:24,899 INFO L240 hiAutomatonCegarLoop]: Abstraction has 127 states and 146 transitions. [2022-11-23 01:50:24,899 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 01:50:24,899 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-23 01:50:24,900 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-23 01:50:24,900 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) [2022-11-23 01:50:24,930 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 01:50:24,930 INFO L93 Difference]: Finished difference Result 70 states and 80 transitions. [2022-11-23 01:50:24,930 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 70 states and 80 transitions. [2022-11-23 01:50:24,931 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 32 [2022-11-23 01:50:24,932 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 70 states to 69 states and 79 transitions. [2022-11-23 01:50:24,932 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 37 [2022-11-23 01:50:24,932 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 37 [2022-11-23 01:50:24,932 INFO L73 IsDeterministic]: Start isDeterministic. Operand 69 states and 79 transitions. [2022-11-23 01:50:24,932 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-11-23 01:50:24,932 INFO L218 hiAutomatonCegarLoop]: Abstraction has 69 states and 79 transitions. [2022-11-23 01:50:24,932 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states and 79 transitions. [2022-11-23 01:50:24,934 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 69. [2022-11-23 01:50:24,934 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) [2022-11-23 01:50:24,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 79 transitions. [2022-11-23 01:50:24,935 INFO L240 hiAutomatonCegarLoop]: Abstraction has 69 states and 79 transitions. [2022-11-23 01:50:24,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-23 01:50:24,938 INFO L428 stractBuchiCegarLoop]: Abstraction has 69 states and 79 transitions. [2022-11-23 01:50:24,939 INFO L335 stractBuchiCegarLoop]: ======== Iteration 6 ============ [2022-11-23 01:50:24,939 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 69 states and 79 transitions. [2022-11-23 01:50:24,939 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 32 [2022-11-23 01:50:24,939 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-23 01:50:24,939 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-23 01:50:24,940 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2022-11-23 01:50:24,940 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 01:50:24,940 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 [2022-11-23 01:50:24,940 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 [2022-11-23 01:50:24,941 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 01:50:24,941 INFO L85 PathProgramCache]: Analyzing trace with hash 28695791, now seen corresponding path program 1 times [2022-11-23 01:50:24,941 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 01:50:24,942 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1091857230] [2022-11-23 01:50:24,942 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 01:50:24,942 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 01:50:24,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-23 01:50:24,958 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-23 01:50:24,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-23 01:50:24,978 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-23 01:50:24,979 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 01:50:24,979 INFO L85 PathProgramCache]: Analyzing trace with hash -1285304700, now seen corresponding path program 2 times [2022-11-23 01:50:24,979 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 01:50:24,979 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1041440109] [2022-11-23 01:50:24,980 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 01:50:24,980 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 01:50:24,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-23 01:50:24,991 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-23 01:50:24,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-23 01:50:25,002 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-23 01:50:25,004 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 01:50:25,005 INFO L85 PathProgramCache]: Analyzing trace with hash 765817586, now seen corresponding path program 1 times [2022-11-23 01:50:25,005 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 01:50:25,005 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1598266117] [2022-11-23 01:50:25,007 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 01:50:25,007 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 01:50:25,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 01:50:25,112 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 01:50:25,112 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 01:50:25,114 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1598266117] [2022-11-23 01:50:25,114 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1598266117] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 01:50:25,114 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 01:50:25,115 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-23 01:50:25,115 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1951007053] [2022-11-23 01:50:25,115 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 01:50:25,165 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78ff5760-2073-4367-89be-422c1f7195df/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Ended with exit code 0 [2022-11-23 01:50:25,314 INFO L210 LassoAnalysis]: Preferences: [2022-11-23 01:50:25,314 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-23 01:50:25,314 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-23 01:50:25,314 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-23 01:50:25,315 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-11-23 01:50:25,315 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-23 01:50:25,315 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-23 01:50:25,315 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-23 01:50:25,315 INFO L133 ssoRankerPreferences]: Filename of dumped script: heapsort.i_Iteration6_Loop [2022-11-23 01:50:25,315 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-23 01:50:25,315 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-23 01:50:25,316 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-23 01:50:25,319 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-23 01:50:25,326 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-23 01:50:25,343 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-23 01:50:25,416 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-23 01:50:25,416 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-11-23 01:50:25,417 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-23 01:50:25,417 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78ff5760-2073-4367-89be-422c1f7195df/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 01:50:25,418 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78ff5760-2073-4367-89be-422c1f7195df/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-23 01:50:25,433 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78ff5760-2073-4367-89be-422c1f7195df/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2022-11-23 01:50:25,433 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-23 01:50:25,434 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-23 01:50:25,459 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-23 01:50:25,459 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: [] [2022-11-23 01:50:25,462 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78ff5760-2073-4367-89be-422c1f7195df/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Ended with exit code 0 [2022-11-23 01:50:25,463 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-23 01:50:25,463 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78ff5760-2073-4367-89be-422c1f7195df/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 01:50:25,464 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78ff5760-2073-4367-89be-422c1f7195df/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-23 01:50:25,473 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78ff5760-2073-4367-89be-422c1f7195df/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2022-11-23 01:50:25,473 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-23 01:50:25,477 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-23 01:50:25,498 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-23 01:50:25,499 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: [] [2022-11-23 01:50:25,507 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78ff5760-2073-4367-89be-422c1f7195df/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Forceful destruction successful, exit code 0 [2022-11-23 01:50:25,508 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-23 01:50:25,508 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78ff5760-2073-4367-89be-422c1f7195df/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 01:50:25,509 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78ff5760-2073-4367-89be-422c1f7195df/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-23 01:50:25,511 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78ff5760-2073-4367-89be-422c1f7195df/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2022-11-23 01:50:25,512 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-23 01:50:25,512 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-23 01:50:25,537 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78ff5760-2073-4367-89be-422c1f7195df/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Forceful destruction successful, exit code 0 [2022-11-23 01:50:25,537 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-23 01:50:25,538 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78ff5760-2073-4367-89be-422c1f7195df/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 01:50:25,538 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78ff5760-2073-4367-89be-422c1f7195df/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-23 01:50:25,543 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-11-23 01:50:25,544 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-23 01:50:25,556 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78ff5760-2073-4367-89be-422c1f7195df/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2022-11-23 01:50:25,819 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-11-23 01:50:25,823 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78ff5760-2073-4367-89be-422c1f7195df/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Ended with exit code 0 [2022-11-23 01:50:25,823 INFO L210 LassoAnalysis]: Preferences: [2022-11-23 01:50:25,823 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-23 01:50:25,823 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-23 01:50:25,823 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-23 01:50:25,823 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-11-23 01:50:25,823 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-23 01:50:25,824 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-23 01:50:25,824 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-23 01:50:25,824 INFO L133 ssoRankerPreferences]: Filename of dumped script: heapsort.i_Iteration6_Loop [2022-11-23 01:50:25,824 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-23 01:50:25,824 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-23 01:50:25,825 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-23 01:50:25,836 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-23 01:50:25,855 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-23 01:50:25,858 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-23 01:50:25,933 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-23 01:50:25,934 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-11-23 01:50:25,934 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-23 01:50:25,934 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78ff5760-2073-4367-89be-422c1f7195df/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 01:50:25,935 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78ff5760-2073-4367-89be-422c1f7195df/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-23 01:50:25,945 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 [2022-11-23 01:50:25,958 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-23 01:50:25,958 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-23 01:50:25,958 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-23 01:50:25,958 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2022-11-23 01:50:25,958 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-23 01:50:25,959 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2022-11-23 01:50:25,959 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-23 01:50:25,961 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78ff5760-2073-4367-89be-422c1f7195df/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2022-11-23 01:50:25,985 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-23 01:50:25,992 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78ff5760-2073-4367-89be-422c1f7195df/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Forceful destruction successful, exit code 0 [2022-11-23 01:50:25,993 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-23 01:50:25,993 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78ff5760-2073-4367-89be-422c1f7195df/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 01:50:25,994 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78ff5760-2073-4367-89be-422c1f7195df/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-23 01:50:26,001 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78ff5760-2073-4367-89be-422c1f7195df/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process [2022-11-23 01:50:26,001 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-23 01:50:26,013 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-23 01:50:26,014 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-23 01:50:26,014 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-23 01:50:26,014 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-23 01:50:26,014 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-23 01:50:26,016 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-23 01:50:26,016 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-23 01:50:26,026 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-11-23 01:50:26,031 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2022-11-23 01:50:26,031 INFO L444 ModelExtractionUtils]: 4 out of 7 variables were initially zero. Simplification set additionally 1 variables to zero. [2022-11-23 01:50:26,031 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-23 01:50:26,031 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78ff5760-2073-4367-89be-422c1f7195df/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 01:50:26,033 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78ff5760-2073-4367-89be-422c1f7195df/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-23 01:50:26,042 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-11-23 01:50:26,043 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-11-23 01:50:26,043 INFO L513 LassoAnalysis]: Proved termination. [2022-11-23 01:50:26,043 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 [] [2022-11-23 01:50:26,046 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78ff5760-2073-4367-89be-422c1f7195df/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Waiting until timeout for monitored process [2022-11-23 01:50:26,047 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78ff5760-2073-4367-89be-422c1f7195df/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Forceful destruction successful, exit code 0 [2022-11-23 01:50:26,048 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-11-23 01:50:26,060 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 01:50:26,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 01:50:26,073 INFO L263 TraceCheckSpWp]: Trace formula consists of 47 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-23 01:50:26,073 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 01:50:26,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 01:50:26,097 INFO L263 TraceCheckSpWp]: Trace formula consists of 34 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-23 01:50:26,097 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 01:50:26,136 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 01:50:26,137 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 [2022-11-23 01:50:26,138 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) [2022-11-23 01:50:26,184 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. [2022-11-23 01:50:26,184 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 [2022-11-23 01:50:26,185 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) [2022-11-23 01:50:26,186 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 47 transitions. [2022-11-23 01:50:26,186 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 47 transitions. Stem has 5 letters. Loop has 14 letters. [2022-11-23 01:50:26,188 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-23 01:50:26,188 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 47 transitions. Stem has 19 letters. Loop has 14 letters. [2022-11-23 01:50:26,188 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-23 01:50:26,188 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 47 transitions. Stem has 5 letters. Loop has 28 letters. [2022-11-23 01:50:26,188 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-23 01:50:26,189 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 137 states and 159 transitions. [2022-11-23 01:50:26,190 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 25 [2022-11-23 01:50:26,191 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 137 states to 131 states and 152 transitions. [2022-11-23 01:50:26,191 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 33 [2022-11-23 01:50:26,191 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 34 [2022-11-23 01:50:26,191 INFO L73 IsDeterministic]: Start isDeterministic. Operand 131 states and 152 transitions. [2022-11-23 01:50:26,191 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-11-23 01:50:26,191 INFO L218 hiAutomatonCegarLoop]: Abstraction has 131 states and 152 transitions. [2022-11-23 01:50:26,192 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 131 states and 152 transitions. [2022-11-23 01:50:26,197 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 131 to 129. [2022-11-23 01:50:26,197 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) [2022-11-23 01:50:26,198 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129 states to 129 states and 149 transitions. [2022-11-23 01:50:26,198 INFO L240 hiAutomatonCegarLoop]: Abstraction has 129 states and 149 transitions. [2022-11-23 01:50:26,198 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 01:50:26,199 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-23 01:50:26,199 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-11-23 01:50:26,199 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) [2022-11-23 01:50:26,355 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 01:50:26,355 INFO L93 Difference]: Finished difference Result 430 states and 476 transitions. [2022-11-23 01:50:26,355 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 430 states and 476 transitions. [2022-11-23 01:50:26,358 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 64 [2022-11-23 01:50:26,360 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 430 states to 379 states and 421 transitions. [2022-11-23 01:50:26,360 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 96 [2022-11-23 01:50:26,360 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 96 [2022-11-23 01:50:26,360 INFO L73 IsDeterministic]: Start isDeterministic. Operand 379 states and 421 transitions. [2022-11-23 01:50:26,360 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-11-23 01:50:26,360 INFO L218 hiAutomatonCegarLoop]: Abstraction has 379 states and 421 transitions. [2022-11-23 01:50:26,361 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 379 states and 421 transitions. [2022-11-23 01:50:26,363 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 379 to 130. [2022-11-23 01:50:26,363 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) [2022-11-23 01:50:26,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 130 states to 130 states and 150 transitions. [2022-11-23 01:50:26,364 INFO L240 hiAutomatonCegarLoop]: Abstraction has 130 states and 150 transitions. [2022-11-23 01:50:26,365 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-23 01:50:26,365 INFO L428 stractBuchiCegarLoop]: Abstraction has 130 states and 150 transitions. [2022-11-23 01:50:26,365 INFO L335 stractBuchiCegarLoop]: ======== Iteration 7 ============ [2022-11-23 01:50:26,365 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 130 states and 150 transitions. [2022-11-23 01:50:26,366 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 25 [2022-11-23 01:50:26,366 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-23 01:50:26,366 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-23 01:50:26,367 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2022-11-23 01:50:26,367 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 01:50:26,367 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 [2022-11-23 01:50:26,368 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 [2022-11-23 01:50:26,368 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 01:50:26,368 INFO L85 PathProgramCache]: Analyzing trace with hash 889569551, now seen corresponding path program 1 times [2022-11-23 01:50:26,368 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 01:50:26,369 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1025162304] [2022-11-23 01:50:26,369 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 01:50:26,369 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 01:50:26,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-23 01:50:26,374 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-23 01:50:26,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-23 01:50:26,380 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-23 01:50:26,380 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 01:50:26,383 INFO L85 PathProgramCache]: Analyzing trace with hash 184163919, now seen corresponding path program 1 times [2022-11-23 01:50:26,384 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 01:50:26,384 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [256068436] [2022-11-23 01:50:26,386 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 01:50:26,386 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 01:50:26,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 01:50:26,517 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 01:50:26,518 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 01:50:26,519 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [256068436] [2022-11-23 01:50:26,519 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [256068436] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 01:50:26,519 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 01:50:26,519 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-23 01:50:26,520 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1699854241] [2022-11-23 01:50:26,520 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 01:50:26,521 INFO L765 eck$LassoCheckResult]: loop already infeasible [2022-11-23 01:50:26,521 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 01:50:26,521 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-23 01:50:26,521 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-23 01:50:26,521 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) [2022-11-23 01:50:26,704 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 01:50:26,704 INFO L93 Difference]: Finished difference Result 239 states and 267 transitions. [2022-11-23 01:50:26,704 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 239 states and 267 transitions. [2022-11-23 01:50:26,706 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 25 [2022-11-23 01:50:26,707 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 239 states to 224 states and 252 transitions. [2022-11-23 01:50:26,707 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 32 [2022-11-23 01:50:26,707 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 32 [2022-11-23 01:50:26,707 INFO L73 IsDeterministic]: Start isDeterministic. Operand 224 states and 252 transitions. [2022-11-23 01:50:26,707 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-11-23 01:50:26,707 INFO L218 hiAutomatonCegarLoop]: Abstraction has 224 states and 252 transitions. [2022-11-23 01:50:26,708 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 224 states and 252 transitions. [2022-11-23 01:50:26,710 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 224 to 175. [2022-11-23 01:50:26,710 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) [2022-11-23 01:50:26,711 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 175 states to 175 states and 197 transitions. [2022-11-23 01:50:26,711 INFO L240 hiAutomatonCegarLoop]: Abstraction has 175 states and 197 transitions. [2022-11-23 01:50:26,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-23 01:50:26,713 INFO L428 stractBuchiCegarLoop]: Abstraction has 175 states and 197 transitions. [2022-11-23 01:50:26,713 INFO L335 stractBuchiCegarLoop]: ======== Iteration 8 ============ [2022-11-23 01:50:26,713 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 175 states and 197 transitions. [2022-11-23 01:50:26,714 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 25 [2022-11-23 01:50:26,714 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-23 01:50:26,714 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-23 01:50:26,716 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2022-11-23 01:50:26,716 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] [2022-11-23 01:50:26,716 INFO L748 eck$LassoCheckResult]: Stem: 3113#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(9, 2); 3070#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;main_#in~argc#1, main_#in~argv#1.base, main_#in~argv#1.offset := #in~argc#1, #in~argv#1.base, #in~argv#1.offset;havoc main_#res#1;havoc main_#t~nondet1#1, main_#t~post2#1, main_#t~post3#1, main_#t~nondet4#1, main_#t~nondet5#1, main_#t~post6#1, main_#t~post7#1, main_~argc#1, main_~argv#1.base, main_~argv#1.offset, main_~n~0#1, main_~l~0#1, main_~r~0#1, main_~i~0#1, main_~j~0#1;main_~argc#1 := main_#in~argc#1;main_~argv#1.base, main_~argv#1.offset := main_#in~argv#1.base, main_#in~argv#1.offset;havoc main_~n~0#1;havoc main_~l~0#1;havoc main_~r~0#1;havoc main_~i~0#1;havoc main_~j~0#1;main_~n~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1; 3071#L27 assume !!(1 <= main_~n~0#1 && main_~n~0#1 <= 1000000);main_~l~0#1 := 1 + (if main_~n~0#1 < 0 && 0 != main_~n~0#1 % 2 then 1 + main_~n~0#1 / 2 else main_~n~0#1 / 2);main_~r~0#1 := main_~n~0#1; 3056#L30 assume main_~l~0#1 > 1;main_#t~post2#1 := main_~l~0#1;main_~l~0#1 := main_#t~post2#1 - 1;havoc main_#t~post2#1; 3057#L59-1 assume !!(main_~r~0#1 > 1);main_~i~0#1 := main_~l~0#1;main_~j~0#1 := 2 * main_~l~0#1; 3088#L38-2 assume !!(main_~j~0#1 <= main_~r~0#1); 3100#L39 [2022-11-23 01:50:26,716 INFO L750 eck$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 [2022-11-23 01:50:26,717 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 01:50:26,717 INFO L85 PathProgramCache]: Analyzing trace with hash 889569551, now seen corresponding path program 2 times [2022-11-23 01:50:26,717 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 01:50:26,717 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1650802241] [2022-11-23 01:50:26,717 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 01:50:26,718 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 01:50:26,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-23 01:50:26,725 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-23 01:50:26,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-23 01:50:26,743 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-23 01:50:26,745 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 01:50:26,745 INFO L85 PathProgramCache]: Analyzing trace with hash -1105792449, now seen corresponding path program 1 times [2022-11-23 01:50:26,746 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 01:50:26,746 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [19224416] [2022-11-23 01:50:26,746 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 01:50:26,746 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 01:50:26,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-23 01:50:26,763 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-23 01:50:26,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-23 01:50:26,789 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-23 01:50:26,790 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 01:50:26,790 INFO L85 PathProgramCache]: Analyzing trace with hash -1170285327, now seen corresponding path program 1 times [2022-11-23 01:50:26,790 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 01:50:26,790 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [26023492] [2022-11-23 01:50:26,790 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 01:50:26,790 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 01:50:26,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 01:50:26,894 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 01:50:26,894 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 01:50:26,894 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [26023492] [2022-11-23 01:50:26,894 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [26023492] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 01:50:26,894 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2055481372] [2022-11-23 01:50:26,895 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 01:50:26,895 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 01:50:26,895 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78ff5760-2073-4367-89be-422c1f7195df/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 01:50:26,896 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78ff5760-2073-4367-89be-422c1f7195df/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 01:50:26,921 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78ff5760-2073-4367-89be-422c1f7195df/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Forceful destruction successful, exit code 0 [2022-11-23 01:50:26,926 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78ff5760-2073-4367-89be-422c1f7195df/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Waiting until timeout for monitored process [2022-11-23 01:50:26,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 01:50:26,981 INFO L263 TraceCheckSpWp]: Trace formula consists of 111 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-23 01:50:26,983 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 01:50:27,215 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 01:50:27,215 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 01:50:27,215 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2055481372] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 01:50:27,216 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-23 01:50:27,216 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [6] total 11 [2022-11-23 01:50:27,216 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [864986161] [2022-11-23 01:50:27,216 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 01:50:27,548 INFO L210 LassoAnalysis]: Preferences: [2022-11-23 01:50:27,548 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-23 01:50:27,548 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-23 01:50:27,548 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-23 01:50:27,549 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-11-23 01:50:27,549 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-23 01:50:27,549 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-23 01:50:27,549 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-23 01:50:27,549 INFO L133 ssoRankerPreferences]: Filename of dumped script: heapsort.i_Iteration8_Loop [2022-11-23 01:50:27,549 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-23 01:50:27,549 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-23 01:50:27,550 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-23 01:50:27,553 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-23 01:50:27,567 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-23 01:50:27,570 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-23 01:50:27,636 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-23 01:50:27,636 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-11-23 01:50:27,637 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-23 01:50:27,637 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78ff5760-2073-4367-89be-422c1f7195df/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 01:50:27,638 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78ff5760-2073-4367-89be-422c1f7195df/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-23 01:50:27,644 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78ff5760-2073-4367-89be-422c1f7195df/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Waiting until timeout for monitored process [2022-11-23 01:50:27,645 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-23 01:50:27,645 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-23 01:50:27,668 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-23 01:50:27,668 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: [] [2022-11-23 01:50:27,676 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78ff5760-2073-4367-89be-422c1f7195df/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Forceful destruction successful, exit code 0 [2022-11-23 01:50:27,677 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-23 01:50:27,677 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78ff5760-2073-4367-89be-422c1f7195df/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 01:50:27,678 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78ff5760-2073-4367-89be-422c1f7195df/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-23 01:50:27,685 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-23 01:50:27,685 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-23 01:50:27,698 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78ff5760-2073-4367-89be-422c1f7195df/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Waiting until timeout for monitored process [2022-11-23 01:50:27,726 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78ff5760-2073-4367-89be-422c1f7195df/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Forceful destruction successful, exit code 0 [2022-11-23 01:50:27,726 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-23 01:50:27,726 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78ff5760-2073-4367-89be-422c1f7195df/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 01:50:27,727 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78ff5760-2073-4367-89be-422c1f7195df/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-23 01:50:27,733 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-11-23 01:50:27,733 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-23 01:50:27,745 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78ff5760-2073-4367-89be-422c1f7195df/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Waiting until timeout for monitored process [2022-11-23 01:50:27,882 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-11-23 01:50:27,891 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78ff5760-2073-4367-89be-422c1f7195df/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Forceful destruction successful, exit code 0 [2022-11-23 01:50:27,891 INFO L210 LassoAnalysis]: Preferences: [2022-11-23 01:50:27,891 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-23 01:50:27,891 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-23 01:50:27,891 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-23 01:50:27,892 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-11-23 01:50:27,892 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-23 01:50:27,892 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-23 01:50:27,892 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-23 01:50:27,892 INFO L133 ssoRankerPreferences]: Filename of dumped script: heapsort.i_Iteration8_Loop [2022-11-23 01:50:27,892 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-23 01:50:27,892 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-23 01:50:27,893 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-23 01:50:27,896 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-23 01:50:27,910 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-23 01:50:27,915 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-23 01:50:27,978 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-23 01:50:27,978 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-11-23 01:50:27,979 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-23 01:50:27,979 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78ff5760-2073-4367-89be-422c1f7195df/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 01:50:27,980 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78ff5760-2073-4367-89be-422c1f7195df/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-23 01:50:27,987 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 [2022-11-23 01:50:27,999 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-23 01:50:27,999 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-23 01:50:28,000 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-23 01:50:28,000 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2022-11-23 01:50:28,000 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-23 01:50:28,001 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2022-11-23 01:50:28,001 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-23 01:50:28,003 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78ff5760-2073-4367-89be-422c1f7195df/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Waiting until timeout for monitored process [2022-11-23 01:50:28,013 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-23 01:50:28,020 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78ff5760-2073-4367-89be-422c1f7195df/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Forceful destruction successful, exit code 0 [2022-11-23 01:50:28,020 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-23 01:50:28,021 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78ff5760-2073-4367-89be-422c1f7195df/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 01:50:28,022 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78ff5760-2073-4367-89be-422c1f7195df/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-23 01:50:28,025 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 [2022-11-23 01:50:28,038 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-23 01:50:28,038 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-23 01:50:28,038 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-23 01:50:28,038 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-23 01:50:28,038 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-23 01:50:28,040 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-23 01:50:28,040 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-23 01:50:28,042 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78ff5760-2073-4367-89be-422c1f7195df/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Waiting until timeout for monitored process [2022-11-23 01:50:28,058 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-11-23 01:50:28,064 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2022-11-23 01:50:28,064 INFO L444 ModelExtractionUtils]: 2 out of 6 variables were initially zero. Simplification set additionally 1 variables to zero. [2022-11-23 01:50:28,064 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-23 01:50:28,064 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78ff5760-2073-4367-89be-422c1f7195df/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 01:50:28,065 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78ff5760-2073-4367-89be-422c1f7195df/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-23 01:50:28,069 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-11-23 01:50:28,069 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-11-23 01:50:28,069 INFO L513 LassoAnalysis]: Proved termination. [2022-11-23 01:50:28,069 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 [] [2022-11-23 01:50:28,071 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78ff5760-2073-4367-89be-422c1f7195df/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Waiting until timeout for monitored process [2022-11-23 01:50:28,078 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78ff5760-2073-4367-89be-422c1f7195df/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Forceful destruction successful, exit code 0 [2022-11-23 01:50:28,079 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-11-23 01:50:28,094 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 01:50:28,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 01:50:28,108 INFO L263 TraceCheckSpWp]: Trace formula consists of 48 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-23 01:50:28,108 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 01:50:28,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 01:50:28,132 INFO L263 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 14 conjunts are in the unsatisfiable core [2022-11-23 01:50:28,133 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 01:50:28,382 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 01:50:28,382 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 [2022-11-23 01:50:28,383 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) [2022-11-23 01:50:28,493 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. [2022-11-23 01:50:28,494 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 [2022-11-23 01:50:28,494 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) [2022-11-23 01:50:28,494 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 47 transitions. [2022-11-23 01:50:28,494 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 47 transitions. Stem has 6 letters. Loop has 25 letters. [2022-11-23 01:50:28,495 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-23 01:50:28,495 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2022-11-23 01:50:28,506 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 01:50:28,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 01:50:28,517 INFO L263 TraceCheckSpWp]: Trace formula consists of 48 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-23 01:50:28,518 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 01:50:28,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 01:50:28,540 INFO L263 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 14 conjunts are in the unsatisfiable core [2022-11-23 01:50:28,541 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 01:50:28,656 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78ff5760-2073-4367-89be-422c1f7195df/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Forceful destruction successful, exit code 0 [2022-11-23 01:50:28,799 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 01:50:28,800 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 [2022-11-23 01:50:28,800 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) [2022-11-23 01:50:28,962 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. [2022-11-23 01:50:28,962 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 [2022-11-23 01:50:28,963 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) [2022-11-23 01:50:28,963 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 47 transitions. [2022-11-23 01:50:28,963 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 47 transitions. Stem has 6 letters. Loop has 25 letters. [2022-11-23 01:50:28,964 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-23 01:50:28,964 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2022-11-23 01:50:28,975 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 01:50:28,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 01:50:28,988 INFO L263 TraceCheckSpWp]: Trace formula consists of 48 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-23 01:50:28,989 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 01:50:29,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 01:50:29,019 INFO L263 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 14 conjunts are in the unsatisfiable core [2022-11-23 01:50:29,020 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 01:50:29,260 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 01:50:29,261 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 [2022-11-23 01:50:29,261 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) [2022-11-23 01:50:29,385 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. [2022-11-23 01:50:29,389 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 [2022-11-23 01:50:29,389 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) [2022-11-23 01:50:29,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 86 transitions. [2022-11-23 01:50:29,390 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 86 transitions. Stem has 6 letters. Loop has 25 letters. [2022-11-23 01:50:29,390 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-23 01:50:29,390 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2022-11-23 01:50:29,402 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 01:50:29,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 01:50:29,414 INFO L263 TraceCheckSpWp]: Trace formula consists of 48 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-23 01:50:29,414 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 01:50:29,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 01:50:29,439 INFO L263 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 14 conjunts are in the unsatisfiable core [2022-11-23 01:50:29,440 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 01:50:29,686 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 01:50:29,686 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 [2022-11-23 01:50:29,687 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) [2022-11-23 01:50:29,843 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. [2022-11-23 01:50:29,844 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 [2022-11-23 01:50:29,844 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) [2022-11-23 01:50:29,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 86 transitions. [2022-11-23 01:50:29,845 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 86 transitions. Stem has 6 letters. Loop has 25 letters. [2022-11-23 01:50:29,845 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-23 01:50:29,845 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2022-11-23 01:50:29,856 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 01:50:29,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 01:50:29,867 INFO L263 TraceCheckSpWp]: Trace formula consists of 48 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-23 01:50:29,868 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 01:50:29,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 01:50:29,896 INFO L263 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 14 conjunts are in the unsatisfiable core [2022-11-23 01:50:29,897 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 01:50:30,150 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 01:50:30,151 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 [2022-11-23 01:50:30,152 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) [2022-11-23 01:50:30,459 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 [2022-11-23 01:50:30,460 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 [2022-11-23 01:50:30,461 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) [2022-11-23 01:50:30,461 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 196 transitions. [2022-11-23 01:50:30,462 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 196 transitions. Stem has 6 letters. Loop has 25 letters. [2022-11-23 01:50:30,463 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-23 01:50:30,463 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2022-11-23 01:50:30,463 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) [2022-11-23 01:50:30,474 INFO L158 Benchmark]: Toolchain (without parser) took 11505.29ms. Allocated memory was 155.2MB in the beginning and 237.0MB in the end (delta: 81.8MB). Free memory was 123.1MB in the beginning and 163.9MB in the end (delta: -40.7MB). Peak memory consumption was 43.0MB. Max. memory is 16.1GB. [2022-11-23 01:50:30,474 INFO L158 Benchmark]: CDTParser took 0.21ms. Allocated memory is still 155.2MB. Free memory is still 98.9MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-23 01:50:30,475 INFO L158 Benchmark]: CACSL2BoogieTranslator took 234.53ms. Allocated memory is still 155.2MB. Free memory was 123.1MB in the beginning and 112.4MB in the end (delta: 10.7MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-23 01:50:30,475 INFO L158 Benchmark]: Boogie Procedure Inliner took 36.88ms. Allocated memory is still 155.2MB. Free memory was 112.4MB in the beginning and 110.6MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-23 01:50:30,475 INFO L158 Benchmark]: Boogie Preprocessor took 27.20ms. Allocated memory is still 155.2MB. Free memory was 110.6MB in the beginning and 109.0MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-23 01:50:30,476 INFO L158 Benchmark]: RCFGBuilder took 411.40ms. Allocated memory is still 155.2MB. Free memory was 109.0MB in the beginning and 95.7MB in the end (delta: 13.3MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-11-23 01:50:30,476 INFO L158 Benchmark]: BuchiAutomizer took 10790.65ms. Allocated memory was 155.2MB in the beginning and 237.0MB in the end (delta: 81.8MB). Free memory was 95.2MB in the beginning and 163.9MB in the end (delta: -68.6MB). Peak memory consumption was 13.6MB. Max. memory is 16.1GB. [2022-11-23 01:50:30,478 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21ms. Allocated memory is still 155.2MB. Free memory is still 98.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 234.53ms. Allocated memory is still 155.2MB. Free memory was 123.1MB in the beginning and 112.4MB in the end (delta: 10.7MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 36.88ms. Allocated memory is still 155.2MB. Free memory was 112.4MB in the beginning and 110.6MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 27.20ms. Allocated memory is still 155.2MB. Free memory was 110.6MB in the beginning and 109.0MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 411.40ms. Allocated memory is still 155.2MB. Free memory was 109.0MB in the beginning and 95.7MB in the end (delta: 13.3MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * BuchiAutomizer took 10790.65ms. Allocated memory was 155.2MB in the beginning and 237.0MB in the end (delta: 81.8MB). Free memory was 95.2MB in the beginning and 163.9MB in the end (delta: -68.6MB). Peak memory consumption was 13.6MB. 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. [2022-11-23 01:50:30,497 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78ff5760-2073-4367-89be-422c1f7195df/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Forceful destruction successful, exit code 0 [2022-11-23 01:50:30,695 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78ff5760-2073-4367-89be-422c1f7195df/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis No suitable file found in config dir /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78ff5760-2073-4367-89be-422c1f7195df/bin/uautomizer-QkZJyEgLgS/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