./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 dbf71c69 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61e3b791-791a-46b4-b128-3e223b302986/bin/uautomizer-J5u9QxTXDZ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61e3b791-791a-46b4-b128-3e223b302986/bin/uautomizer-J5u9QxTXDZ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61e3b791-791a-46b4-b128-3e223b302986/bin/uautomizer-J5u9QxTXDZ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61e3b791-791a-46b4-b128-3e223b302986/bin/uautomizer-J5u9QxTXDZ/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/loop-invgen/heapsort.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61e3b791-791a-46b4-b128-3e223b302986/bin/uautomizer-J5u9QxTXDZ/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61e3b791-791a-46b4-b128-3e223b302986/bin/uautomizer-J5u9QxTXDZ --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-dbf71c6-m [2022-10-17 11:04:04,780 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-17 11:04:04,783 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-17 11:04:04,830 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-17 11:04:04,831 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-17 11:04:04,835 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-17 11:04:04,838 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-17 11:04:04,845 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-17 11:04:04,847 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-17 11:04:04,853 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-17 11:04:04,855 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-17 11:04:04,857 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-17 11:04:04,858 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-17 11:04:04,861 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-17 11:04:04,862 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-17 11:04:04,864 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-17 11:04:04,866 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-17 11:04:04,867 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-17 11:04:04,869 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-17 11:04:04,877 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-17 11:04:04,879 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-17 11:04:04,880 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-17 11:04:04,883 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-17 11:04:04,885 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-17 11:04:04,895 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-10-17 11:04:04,896 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-10-17 11:04:04,896 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-10-17 11:04:04,898 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-10-17 11:04:04,899 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-10-17 11:04:04,901 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-10-17 11:04:04,902 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-17 11:04:04,904 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-17 11:04:04,906 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-17 11:04:04,907 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-17 11:04:04,908 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-17 11:04:04,909 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-17 11:04:04,910 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-17 11:04:04,910 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-17 11:04:04,910 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-17 11:04:04,911 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-17 11:04:04,912 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-17 11:04:04,913 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61e3b791-791a-46b4-b128-3e223b302986/bin/uautomizer-J5u9QxTXDZ/config/svcomp-Termination-32bit-Automizer_Default.epf [2022-10-17 11:04:04,963 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-17 11:04:04,963 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-17 11:04:04,964 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-17 11:04:04,964 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-17 11:04:04,966 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-17 11:04:04,966 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-17 11:04:04,966 INFO L138 SettingsManager]: * Use SBE=true [2022-10-17 11:04:04,967 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-10-17 11:04:04,967 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-10-17 11:04:04,967 INFO L138 SettingsManager]: * Use old map elimination=false [2022-10-17 11:04:04,968 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-10-17 11:04:04,969 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-10-17 11:04:04,969 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-10-17 11:04:04,969 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-17 11:04:04,969 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-17 11:04:04,970 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-10-17 11:04:04,970 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-17 11:04:04,970 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-17 11:04:04,970 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-17 11:04:04,971 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-10-17 11:04:04,971 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-10-17 11:04:04,971 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-10-17 11:04:04,972 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-17 11:04:04,972 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-17 11:04:04,972 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-10-17 11:04:04,972 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-17 11:04:04,973 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-10-17 11:04:04,974 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-17 11:04:04,975 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-17 11:04:04,975 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-17 11:04:04,975 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-17 11:04:04,977 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-10-17 11:04:04,977 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_61e3b791-791a-46b4-b128-3e223b302986/bin/uautomizer-J5u9QxTXDZ/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61e3b791-791a-46b4-b128-3e223b302986/bin/uautomizer-J5u9QxTXDZ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8e7c8e5dc2a9e8f11b25d1bb9948f05f37b9553e3dc9f8bd8213088dea43cb37 [2022-10-17 11:04:05,322 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-17 11:04:05,360 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-17 11:04:05,363 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-17 11:04:05,364 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-17 11:04:05,365 INFO L275 PluginConnector]: CDTParser initialized [2022-10-17 11:04:05,366 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61e3b791-791a-46b4-b128-3e223b302986/bin/uautomizer-J5u9QxTXDZ/../../sv-benchmarks/c/loop-invgen/heapsort.i [2022-10-17 11:04:05,441 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61e3b791-791a-46b4-b128-3e223b302986/bin/uautomizer-J5u9QxTXDZ/data/6e53820f5/20937dd673e64ba0a153bf5d9cada6a2/FLAG2c14fba19 [2022-10-17 11:04:05,904 INFO L306 CDTParser]: Found 1 translation units. [2022-10-17 11:04:05,904 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61e3b791-791a-46b4-b128-3e223b302986/sv-benchmarks/c/loop-invgen/heapsort.i [2022-10-17 11:04:05,912 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61e3b791-791a-46b4-b128-3e223b302986/bin/uautomizer-J5u9QxTXDZ/data/6e53820f5/20937dd673e64ba0a153bf5d9cada6a2/FLAG2c14fba19 [2022-10-17 11:04:06,290 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61e3b791-791a-46b4-b128-3e223b302986/bin/uautomizer-J5u9QxTXDZ/data/6e53820f5/20937dd673e64ba0a153bf5d9cada6a2 [2022-10-17 11:04:06,294 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-17 11:04:06,296 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-10-17 11:04:06,300 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-17 11:04:06,300 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-17 11:04:06,305 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-17 11:04:06,305 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 11:04:06" (1/1) ... [2022-10-17 11:04:06,307 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@8e15288 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 11:04:06, skipping insertion in model container [2022-10-17 11:04:06,308 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 11:04:06" (1/1) ... [2022-10-17 11:04:06,315 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-17 11:04:06,333 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-17 11:04:06,517 WARN L230 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_61e3b791-791a-46b4-b128-3e223b302986/sv-benchmarks/c/loop-invgen/heapsort.i[893,906] [2022-10-17 11:04:06,547 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 11:04:06,556 INFO L203 MainTranslator]: Completed pre-run [2022-10-17 11:04:06,569 WARN L230 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_61e3b791-791a-46b4-b128-3e223b302986/sv-benchmarks/c/loop-invgen/heapsort.i[893,906] [2022-10-17 11:04:06,577 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 11:04:06,590 INFO L208 MainTranslator]: Completed translation [2022-10-17 11:04:06,591 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 11:04:06 WrapperNode [2022-10-17 11:04:06,591 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-17 11:04:06,592 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-17 11:04:06,593 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-17 11:04:06,593 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-17 11:04:06,600 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 11:04:06" (1/1) ... [2022-10-17 11:04:06,607 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 11:04:06" (1/1) ... [2022-10-17 11:04:06,642 INFO L138 Inliner]: procedures = 16, calls = 20, calls flagged for inlining = 16, calls inlined = 16, statements flattened = 158 [2022-10-17 11:04:06,642 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-17 11:04:06,643 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-17 11:04:06,643 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-17 11:04:06,643 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-17 11:04:06,652 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 11:04:06" (1/1) ... [2022-10-17 11:04:06,653 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 11:04:06" (1/1) ... [2022-10-17 11:04:06,655 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 11:04:06" (1/1) ... [2022-10-17 11:04:06,656 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 11:04:06" (1/1) ... [2022-10-17 11:04:06,660 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 11:04:06" (1/1) ... [2022-10-17 11:04:06,678 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 11:04:06" (1/1) ... [2022-10-17 11:04:06,680 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 11:04:06" (1/1) ... [2022-10-17 11:04:06,681 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 11:04:06" (1/1) ... [2022-10-17 11:04:06,684 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-17 11:04:06,685 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-17 11:04:06,685 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-17 11:04:06,685 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-17 11:04:06,686 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 11:04:06" (1/1) ... [2022-10-17 11:04:06,699 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 11:04:06,711 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61e3b791-791a-46b4-b128-3e223b302986/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 11:04:06,728 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61e3b791-791a-46b4-b128-3e223b302986/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 11:04:06,743 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61e3b791-791a-46b4-b128-3e223b302986/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2022-10-17 11:04:06,774 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-17 11:04:06,774 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-17 11:04:06,774 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-17 11:04:06,774 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-17 11:04:06,846 INFO L235 CfgBuilder]: Building ICFG [2022-10-17 11:04:06,848 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-17 11:04:07,163 INFO L276 CfgBuilder]: Performing block encoding [2022-10-17 11:04:07,169 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-17 11:04:07,183 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-10-17 11:04:07,185 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 11:04:07 BoogieIcfgContainer [2022-10-17 11:04:07,185 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-17 11:04:07,186 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-10-17 11:04:07,186 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-10-17 11:04:07,191 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-10-17 11:04:07,191 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-10-17 11:04:07,192 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 17.10 11:04:06" (1/3) ... [2022-10-17 11:04:07,193 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6613c954 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 17.10 11:04:07, skipping insertion in model container [2022-10-17 11:04:07,193 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-10-17 11:04:07,193 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 11:04:06" (2/3) ... [2022-10-17 11:04:07,193 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6613c954 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 17.10 11:04:07, skipping insertion in model container [2022-10-17 11:04:07,193 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-10-17 11:04:07,194 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 11:04:07" (3/3) ... [2022-10-17 11:04:07,195 INFO L332 chiAutomizerObserver]: Analyzing ICFG heapsort.i [2022-10-17 11:04:07,286 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2022-10-17 11:04:07,286 INFO L304 stractBuchiCegarLoop]: Hoare is false [2022-10-17 11:04:07,286 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-10-17 11:04:07,286 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-10-17 11:04:07,286 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-10-17 11:04:07,287 INFO L308 stractBuchiCegarLoop]: Difference is false [2022-10-17 11:04:07,287 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-10-17 11:04:07,288 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2022-10-17 11:04:07,292 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) [2022-10-17 11:04:07,323 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 49 [2022-10-17 11:04:07,324 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-10-17 11:04:07,324 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-10-17 11:04:07,330 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2022-10-17 11:04:07,330 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1] [2022-10-17 11:04:07,331 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2022-10-17 11:04:07,332 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) [2022-10-17 11:04:07,341 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 49 [2022-10-17 11:04:07,341 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-10-17 11:04:07,341 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-10-17 11:04:07,342 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2022-10-17 11:04:07,343 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1] [2022-10-17 11:04:07,353 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 [2022-10-17 11:04:07,354 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 [2022-10-17 11:04:07,367 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 11:04:07,367 INFO L85 PathProgramCache]: Analyzing trace with hash 925672, now seen corresponding path program 1 times [2022-10-17 11:04:07,379 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 11:04:07,380 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1742272793] [2022-10-17 11:04:07,380 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 11:04:07,381 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 11:04:07,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 11:04:07,505 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-10-17 11:04:07,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 11:04:07,539 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-10-17 11:04:07,542 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 11:04:07,542 INFO L85 PathProgramCache]: Analyzing trace with hash -947861826, now seen corresponding path program 1 times [2022-10-17 11:04:07,542 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 11:04:07,543 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [456910244] [2022-10-17 11:04:07,543 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 11:04:07,543 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 11:04:07,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:04:07,586 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 11:04:07,586 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 11:04:07,587 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [456910244] [2022-10-17 11:04:07,587 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [456910244] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 11:04:07,587 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 11:04:07,588 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-17 11:04:07,588 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1158017007] [2022-10-17 11:04:07,589 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 11:04:07,593 INFO L765 eck$LassoCheckResult]: loop already infeasible [2022-10-17 11:04:07,594 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 11:04:07,624 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-10-17 11:04:07,625 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-10-17 11:04:07,627 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) [2022-10-17 11:04:07,636 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 11:04:07,649 INFO L93 Difference]: Finished difference Result 57 states and 64 transitions. [2022-10-17 11:04:07,650 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 57 states and 64 transitions. [2022-10-17 11:04:07,658 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 35 [2022-10-17 11:04:07,667 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 57 states to 39 states and 45 transitions. [2022-10-17 11:04:07,668 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 39 [2022-10-17 11:04:07,669 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 39 [2022-10-17 11:04:07,670 INFO L73 IsDeterministic]: Start isDeterministic. Operand 39 states and 45 transitions. [2022-10-17 11:04:07,670 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-10-17 11:04:07,670 INFO L218 hiAutomatonCegarLoop]: Abstraction has 39 states and 45 transitions. [2022-10-17 11:04:07,687 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states and 45 transitions. [2022-10-17 11:04:07,712 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39. [2022-10-17 11:04:07,713 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) [2022-10-17 11:04:07,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 45 transitions. [2022-10-17 11:04:07,717 INFO L240 hiAutomatonCegarLoop]: Abstraction has 39 states and 45 transitions. [2022-10-17 11:04:07,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-17 11:04:07,726 INFO L428 stractBuchiCegarLoop]: Abstraction has 39 states and 45 transitions. [2022-10-17 11:04:07,726 INFO L335 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2022-10-17 11:04:07,727 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 39 states and 45 transitions. [2022-10-17 11:04:07,729 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 35 [2022-10-17 11:04:07,729 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-10-17 11:04:07,729 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-10-17 11:04:07,730 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2022-10-17 11:04:07,730 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1] [2022-10-17 11:04:07,730 INFO L748 eck$LassoCheckResult]: Stem: 155#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(9, 2); 135#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;main_#in~argc#1, main_#in~argv#1.base, main_#in~argv#1.offset := #in~argc#1, #in~argv#1.base, #in~argv#1.offset;havoc main_#res#1;havoc main_#t~nondet1#1, main_#t~post2#1, main_#t~post3#1, main_#t~nondet4#1, main_#t~nondet5#1, main_#t~post6#1, main_#t~post7#1, main_~argc#1, main_~argv#1.base, main_~argv#1.offset, main_~n~0#1, main_~l~0#1, main_~r~0#1, main_~i~0#1, main_~j~0#1;main_~argc#1 := main_#in~argc#1;main_~argv#1.base, main_~argv#1.offset := main_#in~argv#1.base, main_#in~argv#1.offset;havoc main_~n~0#1;havoc main_~l~0#1;havoc main_~r~0#1;havoc main_~i~0#1;havoc main_~j~0#1;main_~n~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1; 136#L27 assume !!(1 <= main_~n~0#1 && main_~n~0#1 <= 1000000);main_~l~0#1 := 1 + (if main_~n~0#1 < 0 && 0 != main_~n~0#1 % 2 then 1 + main_~n~0#1 / 2 else main_~n~0#1 / 2);main_~r~0#1 := main_~n~0#1; 124#L30 assume !(main_~l~0#1 > 1);main_#t~post3#1 := main_~r~0#1;main_~r~0#1 := main_#t~post3#1 - 1;havoc main_#t~post3#1; 125#L59-1 [2022-10-17 11:04:07,730 INFO L750 eck$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 [2022-10-17 11:04:07,733 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 11:04:07,733 INFO L85 PathProgramCache]: Analyzing trace with hash 925672, now seen corresponding path program 2 times [2022-10-17 11:04:07,733 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 11:04:07,734 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1286557741] [2022-10-17 11:04:07,734 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 11:04:07,735 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 11:04:07,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 11:04:07,762 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-10-17 11:04:07,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 11:04:07,792 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-10-17 11:04:07,793 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 11:04:07,793 INFO L85 PathProgramCache]: Analyzing trace with hash -145650952, now seen corresponding path program 1 times [2022-10-17 11:04:07,794 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 11:04:07,794 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1554548406] [2022-10-17 11:04:07,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 11:04:07,794 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 11:04:07,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 11:04:07,828 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-10-17 11:04:07,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 11:04:07,842 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-10-17 11:04:07,843 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 11:04:07,843 INFO L85 PathProgramCache]: Analyzing trace with hash 1814169905, now seen corresponding path program 1 times [2022-10-17 11:04:07,843 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 11:04:07,844 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [659561200] [2022-10-17 11:04:07,844 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 11:04:07,844 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 11:04:07,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:04:07,915 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 11:04:07,915 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 11:04:07,916 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [659561200] [2022-10-17 11:04:07,916 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [659561200] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 11:04:07,916 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 11:04:07,916 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-17 11:04:07,917 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1535207085] [2022-10-17 11:04:07,917 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 11:04:08,177 INFO L210 LassoAnalysis]: Preferences: [2022-10-17 11:04:08,179 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-10-17 11:04:08,179 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-10-17 11:04:08,179 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-10-17 11:04:08,179 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-10-17 11:04:08,180 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 11:04:08,180 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-10-17 11:04:08,180 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-10-17 11:04:08,180 INFO L133 ssoRankerPreferences]: Filename of dumped script: heapsort.i_Iteration2_Loop [2022-10-17 11:04:08,180 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-10-17 11:04:08,181 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-10-17 11:04:08,198 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-10-17 11:04:08,232 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-10-17 11:04:08,237 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-10-17 11:04:08,309 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-10-17 11:04:08,310 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-10-17 11:04:08,312 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 11:04:08,313 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61e3b791-791a-46b4-b128-3e223b302986/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 11:04:08,315 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61e3b791-791a-46b4-b128-3e223b302986/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 11:04:08,320 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-10-17 11:04:08,320 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-10-17 11:04:08,334 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61e3b791-791a-46b4-b128-3e223b302986/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2022-10-17 11:04:08,384 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61e3b791-791a-46b4-b128-3e223b302986/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2022-10-17 11:04:08,384 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 11:04:08,385 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61e3b791-791a-46b4-b128-3e223b302986/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 11:04:08,386 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61e3b791-791a-46b4-b128-3e223b302986/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 11:04:08,391 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-10-17 11:04:08,392 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-10-17 11:04:08,413 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61e3b791-791a-46b4-b128-3e223b302986/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2022-10-17 11:04:08,688 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-10-17 11:04:08,691 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61e3b791-791a-46b4-b128-3e223b302986/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2022-10-17 11:04:08,692 INFO L210 LassoAnalysis]: Preferences: [2022-10-17 11:04:08,692 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-10-17 11:04:08,692 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-10-17 11:04:08,692 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-10-17 11:04:08,692 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-10-17 11:04:08,692 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 11:04:08,692 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-10-17 11:04:08,693 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-10-17 11:04:08,693 INFO L133 ssoRankerPreferences]: Filename of dumped script: heapsort.i_Iteration2_Loop [2022-10-17 11:04:08,693 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-10-17 11:04:08,693 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-10-17 11:04:08,694 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-10-17 11:04:08,701 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-10-17 11:04:08,715 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-10-17 11:04:08,780 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-10-17 11:04:08,784 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-10-17 11:04:08,786 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 11:04:08,786 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61e3b791-791a-46b4-b128-3e223b302986/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 11:04:08,787 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61e3b791-791a-46b4-b128-3e223b302986/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 11:04:08,792 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 [2022-10-17 11:04:08,801 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-10-17 11:04:08,802 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-10-17 11:04:08,802 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-10-17 11:04:08,802 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-10-17 11:04:08,802 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-10-17 11:04:08,805 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-10-17 11:04:08,805 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-10-17 11:04:08,808 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61e3b791-791a-46b4-b128-3e223b302986/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2022-10-17 11:04:08,814 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-10-17 11:04:08,833 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61e3b791-791a-46b4-b128-3e223b302986/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Ended with exit code 0 [2022-10-17 11:04:08,834 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 11:04:08,834 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61e3b791-791a-46b4-b128-3e223b302986/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 11:04:08,835 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61e3b791-791a-46b4-b128-3e223b302986/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 11:04:08,836 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61e3b791-791a-46b4-b128-3e223b302986/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2022-10-17 11:04:08,836 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 [2022-10-17 11:04:08,846 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-10-17 11:04:08,846 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-10-17 11:04:08,846 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-10-17 11:04:08,846 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-10-17 11:04:08,846 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-10-17 11:04:08,850 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-10-17 11:04:08,850 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-10-17 11:04:08,859 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-10-17 11:04:08,867 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2022-10-17 11:04:08,867 INFO L444 ModelExtractionUtils]: 4 out of 7 variables were initially zero. Simplification set additionally 1 variables to zero. [2022-10-17 11:04:08,868 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 11:04:08,869 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61e3b791-791a-46b4-b128-3e223b302986/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 11:04:08,870 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61e3b791-791a-46b4-b128-3e223b302986/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 11:04:08,871 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61e3b791-791a-46b4-b128-3e223b302986/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2022-10-17 11:04:08,903 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-10-17 11:04:08,903 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-10-17 11:04:08,904 INFO L513 LassoAnalysis]: Proved termination. [2022-10-17 11:04:08,904 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 [] [2022-10-17 11:04:08,926 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61e3b791-791a-46b4-b128-3e223b302986/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2022-10-17 11:04:08,928 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-10-17 11:04:08,961 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 11:04:08,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:04:08,988 INFO L263 TraceCheckSpWp]: Trace formula consists of 42 conjuncts, 2 conjunts are in the unsatisfiable core [2022-10-17 11:04:08,989 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 11:04:09,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:04:09,014 INFO L263 TraceCheckSpWp]: Trace formula consists of 21 conjuncts, 4 conjunts are in the unsatisfiable core [2022-10-17 11:04:09,015 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 11:04:09,065 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 11:04:09,069 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 [2022-10-17 11:04:09,070 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) [2022-10-17 11:04:09,159 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. [2022-10-17 11:04:09,160 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 [2022-10-17 11:04:09,161 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) [2022-10-17 11:04:09,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 86 transitions. [2022-10-17 11:04:09,164 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 86 transitions. Stem has 4 letters. Loop has 7 letters. [2022-10-17 11:04:09,165 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-10-17 11:04:09,165 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 86 transitions. Stem has 11 letters. Loop has 7 letters. [2022-10-17 11:04:09,165 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-10-17 11:04:09,165 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 86 transitions. Stem has 4 letters. Loop has 14 letters. [2022-10-17 11:04:09,166 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-10-17 11:04:09,166 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 112 states and 130 transitions. [2022-10-17 11:04:09,168 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 66 [2022-10-17 11:04:09,170 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 112 states to 108 states and 126 transitions. [2022-10-17 11:04:09,170 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 71 [2022-10-17 11:04:09,171 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 72 [2022-10-17 11:04:09,171 INFO L73 IsDeterministic]: Start isDeterministic. Operand 108 states and 126 transitions. [2022-10-17 11:04:09,172 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-10-17 11:04:09,172 INFO L218 hiAutomatonCegarLoop]: Abstraction has 108 states and 126 transitions. [2022-10-17 11:04:09,172 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108 states and 126 transitions. [2022-10-17 11:04:09,189 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61e3b791-791a-46b4-b128-3e223b302986/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2022-10-17 11:04:09,190 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108 to 107. [2022-10-17 11:04:09,191 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) [2022-10-17 11:04:09,193 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 107 states and 124 transitions. [2022-10-17 11:04:09,193 INFO L240 hiAutomatonCegarLoop]: Abstraction has 107 states and 124 transitions. [2022-10-17 11:04:09,193 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 11:04:09,194 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-17 11:04:09,194 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-17 11:04:09,194 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) [2022-10-17 11:04:09,220 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 11:04:09,220 INFO L93 Difference]: Finished difference Result 129 states and 148 transitions. [2022-10-17 11:04:09,220 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 129 states and 148 transitions. [2022-10-17 11:04:09,222 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 93 [2022-10-17 11:04:09,223 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 129 states to 98 states and 112 transitions. [2022-10-17 11:04:09,224 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 98 [2022-10-17 11:04:09,224 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 98 [2022-10-17 11:04:09,224 INFO L73 IsDeterministic]: Start isDeterministic. Operand 98 states and 112 transitions. [2022-10-17 11:04:09,225 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-10-17 11:04:09,225 INFO L218 hiAutomatonCegarLoop]: Abstraction has 98 states and 112 transitions. [2022-10-17 11:04:09,226 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states and 112 transitions. [2022-10-17 11:04:09,230 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 66. [2022-10-17 11:04:09,230 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) [2022-10-17 11:04:09,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 76 transitions. [2022-10-17 11:04:09,231 INFO L240 hiAutomatonCegarLoop]: Abstraction has 66 states and 76 transitions. [2022-10-17 11:04:09,232 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-17 11:04:09,233 INFO L428 stractBuchiCegarLoop]: Abstraction has 66 states and 76 transitions. [2022-10-17 11:04:09,233 INFO L335 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2022-10-17 11:04:09,233 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 66 states and 76 transitions. [2022-10-17 11:04:09,234 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 62 [2022-10-17 11:04:09,234 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-10-17 11:04:09,234 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-10-17 11:04:09,235 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2022-10-17 11:04:09,235 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1] [2022-10-17 11:04:09,235 INFO L748 eck$LassoCheckResult]: Stem: 599#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(9, 2); 578#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;main_#in~argc#1, main_#in~argv#1.base, main_#in~argv#1.offset := #in~argc#1, #in~argv#1.base, #in~argv#1.offset;havoc main_#res#1;havoc main_#t~nondet1#1, main_#t~post2#1, main_#t~post3#1, main_#t~nondet4#1, main_#t~nondet5#1, main_#t~post6#1, main_#t~post7#1, main_~argc#1, main_~argv#1.base, main_~argv#1.offset, main_~n~0#1, main_~l~0#1, main_~r~0#1, main_~i~0#1, main_~j~0#1;main_~argc#1 := main_#in~argc#1;main_~argv#1.base, main_~argv#1.offset := main_#in~argv#1.base, main_#in~argv#1.offset;havoc main_~n~0#1;havoc main_~l~0#1;havoc main_~r~0#1;havoc main_~i~0#1;havoc main_~j~0#1;main_~n~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1; 579#L27 assume !!(1 <= main_~n~0#1 && main_~n~0#1 <= 1000000);main_~l~0#1 := 1 + (if main_~n~0#1 < 0 && 0 != main_~n~0#1 % 2 then 1 + main_~n~0#1 / 2 else main_~n~0#1 / 2);main_~r~0#1 := main_~n~0#1; 567#L30 assume main_~l~0#1 > 1;main_#t~post2#1 := main_~l~0#1;main_~l~0#1 := main_#t~post2#1 - 1;havoc main_#t~post2#1; 568#L59-1 [2022-10-17 11:04:09,235 INFO L750 eck$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 [2022-10-17 11:04:09,236 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 11:04:09,236 INFO L85 PathProgramCache]: Analyzing trace with hash 925670, now seen corresponding path program 1 times [2022-10-17 11:04:09,236 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 11:04:09,236 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [603227060] [2022-10-17 11:04:09,237 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 11:04:09,237 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 11:04:09,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 11:04:09,248 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-10-17 11:04:09,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 11:04:09,260 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-10-17 11:04:09,261 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 11:04:09,261 INFO L85 PathProgramCache]: Analyzing trace with hash -145650952, now seen corresponding path program 2 times [2022-10-17 11:04:09,261 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 11:04:09,261 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1019624114] [2022-10-17 11:04:09,262 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 11:04:09,262 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 11:04:09,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 11:04:09,270 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-10-17 11:04:09,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 11:04:09,280 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-10-17 11:04:09,281 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 11:04:09,281 INFO L85 PathProgramCache]: Analyzing trace with hash -1671450765, now seen corresponding path program 1 times [2022-10-17 11:04:09,281 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 11:04:09,282 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [169071919] [2022-10-17 11:04:09,282 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 11:04:09,282 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 11:04:09,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:04:09,443 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 11:04:09,443 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 11:04:09,444 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [169071919] [2022-10-17 11:04:09,444 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [169071919] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 11:04:09,444 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 11:04:09,444 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-17 11:04:09,444 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [430847274] [2022-10-17 11:04:09,444 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 11:04:09,583 INFO L210 LassoAnalysis]: Preferences: [2022-10-17 11:04:09,583 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-10-17 11:04:09,583 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-10-17 11:04:09,584 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-10-17 11:04:09,584 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-10-17 11:04:09,584 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 11:04:09,584 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-10-17 11:04:09,584 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-10-17 11:04:09,584 INFO L133 ssoRankerPreferences]: Filename of dumped script: heapsort.i_Iteration3_Loop [2022-10-17 11:04:09,584 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-10-17 11:04:09,584 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-10-17 11:04:09,586 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-10-17 11:04:09,589 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-10-17 11:04:09,608 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-10-17 11:04:09,681 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-10-17 11:04:09,681 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-10-17 11:04:09,681 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 11:04:09,681 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61e3b791-791a-46b4-b128-3e223b302986/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 11:04:09,683 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61e3b791-791a-46b4-b128-3e223b302986/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 11:04:09,692 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-10-17 11:04:09,692 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-10-17 11:04:09,702 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61e3b791-791a-46b4-b128-3e223b302986/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2022-10-17 11:04:09,716 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-10-17 11:04:09,716 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: [] [2022-10-17 11:04:09,742 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61e3b791-791a-46b4-b128-3e223b302986/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2022-10-17 11:04:09,742 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 11:04:09,742 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61e3b791-791a-46b4-b128-3e223b302986/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 11:04:09,743 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61e3b791-791a-46b4-b128-3e223b302986/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 11:04:09,745 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61e3b791-791a-46b4-b128-3e223b302986/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2022-10-17 11:04:09,745 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-10-17 11:04:09,745 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-10-17 11:04:09,779 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-10-17 11:04:09,779 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: [] [2022-10-17 11:04:09,799 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61e3b791-791a-46b4-b128-3e223b302986/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2022-10-17 11:04:09,799 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 11:04:09,799 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61e3b791-791a-46b4-b128-3e223b302986/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 11:04:09,800 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61e3b791-791a-46b4-b128-3e223b302986/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 11:04:09,802 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61e3b791-791a-46b4-b128-3e223b302986/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2022-10-17 11:04:09,807 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-10-17 11:04:09,807 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-10-17 11:04:09,869 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61e3b791-791a-46b4-b128-3e223b302986/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Ended with exit code 0 [2022-10-17 11:04:09,869 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 11:04:09,869 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61e3b791-791a-46b4-b128-3e223b302986/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 11:04:09,870 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61e3b791-791a-46b4-b128-3e223b302986/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 11:04:09,871 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61e3b791-791a-46b4-b128-3e223b302986/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2022-10-17 11:04:09,874 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-10-17 11:04:09,875 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-10-17 11:04:10,172 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-10-17 11:04:10,174 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61e3b791-791a-46b4-b128-3e223b302986/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2022-10-17 11:04:10,175 INFO L210 LassoAnalysis]: Preferences: [2022-10-17 11:04:10,175 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-10-17 11:04:10,175 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-10-17 11:04:10,175 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-10-17 11:04:10,175 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-10-17 11:04:10,175 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 11:04:10,175 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-10-17 11:04:10,176 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-10-17 11:04:10,176 INFO L133 ssoRankerPreferences]: Filename of dumped script: heapsort.i_Iteration3_Loop [2022-10-17 11:04:10,176 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-10-17 11:04:10,176 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-10-17 11:04:10,177 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-10-17 11:04:10,192 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-10-17 11:04:10,208 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-10-17 11:04:10,264 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-10-17 11:04:10,265 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-10-17 11:04:10,265 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 11:04:10,265 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61e3b791-791a-46b4-b128-3e223b302986/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 11:04:10,266 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61e3b791-791a-46b4-b128-3e223b302986/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 11:04:10,282 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61e3b791-791a-46b4-b128-3e223b302986/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2022-10-17 11:04:10,283 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 [2022-10-17 11:04:10,291 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-10-17 11:04:10,291 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-10-17 11:04:10,292 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-10-17 11:04:10,292 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-10-17 11:04:10,292 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-10-17 11:04:10,293 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-10-17 11:04:10,293 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-10-17 11:04:10,307 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-10-17 11:04:10,342 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61e3b791-791a-46b4-b128-3e223b302986/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2022-10-17 11:04:10,343 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 11:04:10,343 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61e3b791-791a-46b4-b128-3e223b302986/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 11:04:10,344 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61e3b791-791a-46b4-b128-3e223b302986/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 11:04:10,347 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61e3b791-791a-46b4-b128-3e223b302986/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2022-10-17 11:04:10,347 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 [2022-10-17 11:04:10,356 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-10-17 11:04:10,357 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-10-17 11:04:10,357 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-10-17 11:04:10,357 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-10-17 11:04:10,357 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-10-17 11:04:10,361 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-10-17 11:04:10,361 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-10-17 11:04:10,383 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-10-17 11:04:10,388 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2022-10-17 11:04:10,388 INFO L444 ModelExtractionUtils]: 4 out of 7 variables were initially zero. Simplification set additionally 1 variables to zero. [2022-10-17 11:04:10,388 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 11:04:10,388 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61e3b791-791a-46b4-b128-3e223b302986/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 11:04:10,391 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61e3b791-791a-46b4-b128-3e223b302986/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 11:04:10,399 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-10-17 11:04:10,399 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-10-17 11:04:10,399 INFO L513 LassoAnalysis]: Proved termination. [2022-10-17 11:04:10,400 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 [] [2022-10-17 11:04:10,415 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61e3b791-791a-46b4-b128-3e223b302986/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2022-10-17 11:04:10,436 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61e3b791-791a-46b4-b128-3e223b302986/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2022-10-17 11:04:10,437 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-10-17 11:04:10,452 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 11:04:10,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:04:10,477 INFO L263 TraceCheckSpWp]: Trace formula consists of 42 conjuncts, 2 conjunts are in the unsatisfiable core [2022-10-17 11:04:10,477 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 11:04:10,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:04:10,492 INFO L263 TraceCheckSpWp]: Trace formula consists of 21 conjuncts, 4 conjunts are in the unsatisfiable core [2022-10-17 11:04:10,493 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 11:04:10,536 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 11:04:10,538 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 [2022-10-17 11:04:10,538 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) [2022-10-17 11:04:10,579 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. [2022-10-17 11:04:10,584 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 [2022-10-17 11:04:10,584 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) [2022-10-17 11:04:10,585 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 81 transitions. [2022-10-17 11:04:10,585 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 81 transitions. Stem has 4 letters. Loop has 7 letters. [2022-10-17 11:04:10,586 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-10-17 11:04:10,586 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 81 transitions. Stem has 11 letters. Loop has 7 letters. [2022-10-17 11:04:10,586 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-10-17 11:04:10,586 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 81 transitions. Stem has 4 letters. Loop has 14 letters. [2022-10-17 11:04:10,587 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-10-17 11:04:10,587 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 160 states and 185 transitions. [2022-10-17 11:04:10,597 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 87 [2022-10-17 11:04:10,599 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 160 states to 125 states and 145 transitions. [2022-10-17 11:04:10,602 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 93 [2022-10-17 11:04:10,602 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 94 [2022-10-17 11:04:10,603 INFO L73 IsDeterministic]: Start isDeterministic. Operand 125 states and 145 transitions. [2022-10-17 11:04:10,604 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-10-17 11:04:10,605 INFO L218 hiAutomatonCegarLoop]: Abstraction has 125 states and 145 transitions. [2022-10-17 11:04:10,605 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 125 states and 145 transitions. [2022-10-17 11:04:10,611 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 125 to 67. [2022-10-17 11:04:10,614 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) [2022-10-17 11:04:10,615 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 78 transitions. [2022-10-17 11:04:10,615 INFO L240 hiAutomatonCegarLoop]: Abstraction has 67 states and 78 transitions. [2022-10-17 11:04:10,615 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 11:04:10,616 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-17 11:04:10,616 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-10-17 11:04:10,616 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) [2022-10-17 11:04:10,781 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61e3b791-791a-46b4-b128-3e223b302986/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2022-10-17 11:04:10,805 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 11:04:10,805 INFO L93 Difference]: Finished difference Result 207 states and 231 transitions. [2022-10-17 11:04:10,805 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 207 states and 231 transitions. [2022-10-17 11:04:10,806 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 128 [2022-10-17 11:04:10,808 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 207 states to 207 states and 231 transitions. [2022-10-17 11:04:10,809 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 155 [2022-10-17 11:04:10,809 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 155 [2022-10-17 11:04:10,809 INFO L73 IsDeterministic]: Start isDeterministic. Operand 207 states and 231 transitions. [2022-10-17 11:04:10,810 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-10-17 11:04:10,810 INFO L218 hiAutomatonCegarLoop]: Abstraction has 207 states and 231 transitions. [2022-10-17 11:04:10,810 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 207 states and 231 transitions. [2022-10-17 11:04:10,815 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 207 to 69. [2022-10-17 11:04:10,815 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) [2022-10-17 11:04:10,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 80 transitions. [2022-10-17 11:04:10,816 INFO L240 hiAutomatonCegarLoop]: Abstraction has 69 states and 80 transitions. [2022-10-17 11:04:10,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-10-17 11:04:10,820 INFO L428 stractBuchiCegarLoop]: Abstraction has 69 states and 80 transitions. [2022-10-17 11:04:10,820 INFO L335 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2022-10-17 11:04:10,820 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 69 states and 80 transitions. [2022-10-17 11:04:10,822 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 31 [2022-10-17 11:04:10,822 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-10-17 11:04:10,822 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-10-17 11:04:10,822 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2022-10-17 11:04:10,822 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1] [2022-10-17 11:04:10,823 INFO L748 eck$LassoCheckResult]: Stem: 1184#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(9, 2); 1147#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;main_#in~argc#1, main_#in~argv#1.base, main_#in~argv#1.offset := #in~argc#1, #in~argv#1.base, #in~argv#1.offset;havoc main_#res#1;havoc main_#t~nondet1#1, main_#t~post2#1, main_#t~post3#1, main_#t~nondet4#1, main_#t~nondet5#1, main_#t~post6#1, main_#t~post7#1, main_~argc#1, main_~argv#1.base, main_~argv#1.offset, main_~n~0#1, main_~l~0#1, main_~r~0#1, main_~i~0#1, main_~j~0#1;main_~argc#1 := main_#in~argc#1;main_~argv#1.base, main_~argv#1.offset := main_#in~argv#1.base, main_#in~argv#1.offset;havoc main_~n~0#1;havoc main_~l~0#1;havoc main_~r~0#1;havoc main_~i~0#1;havoc main_~j~0#1;main_~n~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1; 1148#L27 assume !!(1 <= main_~n~0#1 && main_~n~0#1 <= 1000000);main_~l~0#1 := 1 + (if main_~n~0#1 < 0 && 0 != main_~n~0#1 % 2 then 1 + main_~n~0#1 / 2 else main_~n~0#1 / 2);main_~r~0#1 := main_~n~0#1; 1129#L30 assume !(main_~l~0#1 > 1);main_#t~post3#1 := main_~r~0#1;main_~r~0#1 := main_#t~post3#1 - 1;havoc main_#t~post3#1; 1131#L59-1 [2022-10-17 11:04:10,824 INFO L750 eck$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 [2022-10-17 11:04:10,824 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 11:04:10,829 INFO L85 PathProgramCache]: Analyzing trace with hash 925672, now seen corresponding path program 3 times [2022-10-17 11:04:10,829 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 11:04:10,829 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1029003603] [2022-10-17 11:04:10,829 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 11:04:10,830 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 11:04:10,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 11:04:10,849 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-10-17 11:04:10,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 11:04:10,857 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-10-17 11:04:10,865 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 11:04:10,865 INFO L85 PathProgramCache]: Analyzing trace with hash -124656242, now seen corresponding path program 1 times [2022-10-17 11:04:10,865 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 11:04:10,865 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1773945698] [2022-10-17 11:04:10,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 11:04:10,866 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 11:04:10,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:04:10,923 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 11:04:10,923 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 11:04:10,924 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1773945698] [2022-10-17 11:04:10,924 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1773945698] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 11:04:10,931 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 11:04:10,931 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-17 11:04:10,931 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1634699113] [2022-10-17 11:04:10,931 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 11:04:10,932 INFO L765 eck$LassoCheckResult]: loop already infeasible [2022-10-17 11:04:10,932 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 11:04:10,932 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-17 11:04:10,933 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-17 11:04:10,934 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) [2022-10-17 11:04:10,999 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 11:04:11,000 INFO L93 Difference]: Finished difference Result 129 states and 146 transitions. [2022-10-17 11:04:11,000 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 129 states and 146 transitions. [2022-10-17 11:04:11,001 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 61 [2022-10-17 11:04:11,002 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 129 states to 128 states and 145 transitions. [2022-10-17 11:04:11,003 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 67 [2022-10-17 11:04:11,003 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 67 [2022-10-17 11:04:11,003 INFO L73 IsDeterministic]: Start isDeterministic. Operand 128 states and 145 transitions. [2022-10-17 11:04:11,004 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-10-17 11:04:11,004 INFO L218 hiAutomatonCegarLoop]: Abstraction has 128 states and 145 transitions. [2022-10-17 11:04:11,005 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 128 states and 145 transitions. [2022-10-17 11:04:11,018 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 128 to 69. [2022-10-17 11:04:11,019 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) [2022-10-17 11:04:11,019 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 80 transitions. [2022-10-17 11:04:11,019 INFO L240 hiAutomatonCegarLoop]: Abstraction has 69 states and 80 transitions. [2022-10-17 11:04:11,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-17 11:04:11,021 INFO L428 stractBuchiCegarLoop]: Abstraction has 69 states and 80 transitions. [2022-10-17 11:04:11,022 INFO L335 stractBuchiCegarLoop]: ======== Iteration 5 ============ [2022-10-17 11:04:11,022 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 69 states and 80 transitions. [2022-10-17 11:04:11,022 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 32 [2022-10-17 11:04:11,022 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-10-17 11:04:11,022 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-10-17 11:04:11,023 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2022-10-17 11:04:11,023 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 11:04:11,024 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 [2022-10-17 11:04:11,025 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 [2022-10-17 11:04:11,027 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 11:04:11,027 INFO L85 PathProgramCache]: Analyzing trace with hash 925672, now seen corresponding path program 4 times [2022-10-17 11:04:11,027 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 11:04:11,027 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [720822204] [2022-10-17 11:04:11,027 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 11:04:11,028 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 11:04:11,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 11:04:11,045 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-10-17 11:04:11,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 11:04:11,057 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-10-17 11:04:11,063 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 11:04:11,064 INFO L85 PathProgramCache]: Analyzing trace with hash -470789538, now seen corresponding path program 1 times [2022-10-17 11:04:11,064 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 11:04:11,064 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [135536819] [2022-10-17 11:04:11,067 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 11:04:11,067 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 11:04:11,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 11:04:11,088 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-10-17 11:04:11,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 11:04:11,104 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-10-17 11:04:11,105 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 11:04:11,105 INFO L85 PathProgramCache]: Analyzing trace with hash 1515786757, now seen corresponding path program 1 times [2022-10-17 11:04:11,105 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 11:04:11,105 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [696644900] [2022-10-17 11:04:11,106 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 11:04:11,106 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 11:04:11,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:04:11,174 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 11:04:11,175 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 11:04:11,175 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [696644900] [2022-10-17 11:04:11,175 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [696644900] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 11:04:11,175 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 11:04:11,175 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-17 11:04:11,176 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [15514614] [2022-10-17 11:04:11,176 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 11:04:11,382 INFO L210 LassoAnalysis]: Preferences: [2022-10-17 11:04:11,382 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-10-17 11:04:11,382 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-10-17 11:04:11,382 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-10-17 11:04:11,382 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-10-17 11:04:11,382 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 11:04:11,382 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-10-17 11:04:11,383 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-10-17 11:04:11,383 INFO L133 ssoRankerPreferences]: Filename of dumped script: heapsort.i_Iteration5_Loop [2022-10-17 11:04:11,383 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-10-17 11:04:11,383 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-10-17 11:04:11,386 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-10-17 11:04:11,391 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-10-17 11:04:11,393 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-10-17 11:04:11,408 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-10-17 11:04:11,476 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-10-17 11:04:11,476 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-10-17 11:04:11,476 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 11:04:11,476 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61e3b791-791a-46b4-b128-3e223b302986/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 11:04:11,477 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61e3b791-791a-46b4-b128-3e223b302986/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 11:04:11,483 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-10-17 11:04:11,483 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-10-17 11:04:11,499 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61e3b791-791a-46b4-b128-3e223b302986/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2022-10-17 11:04:11,500 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-10-17 11:04:11,501 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: [] [2022-10-17 11:04:11,538 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61e3b791-791a-46b4-b128-3e223b302986/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0 [2022-10-17 11:04:11,539 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 11:04:11,539 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61e3b791-791a-46b4-b128-3e223b302986/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 11:04:11,540 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61e3b791-791a-46b4-b128-3e223b302986/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 11:04:11,545 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-10-17 11:04:11,545 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-10-17 11:04:11,562 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61e3b791-791a-46b4-b128-3e223b302986/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2022-10-17 11:04:11,567 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-10-17 11:04:11,567 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: [] [2022-10-17 11:04:11,603 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61e3b791-791a-46b4-b128-3e223b302986/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Forceful destruction successful, exit code 0 [2022-10-17 11:04:11,603 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 11:04:11,603 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61e3b791-791a-46b4-b128-3e223b302986/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 11:04:11,604 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61e3b791-791a-46b4-b128-3e223b302986/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 11:04:11,610 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-10-17 11:04:11,610 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-10-17 11:04:11,621 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61e3b791-791a-46b4-b128-3e223b302986/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2022-10-17 11:04:11,670 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61e3b791-791a-46b4-b128-3e223b302986/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Forceful destruction successful, exit code 0 [2022-10-17 11:04:11,670 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 11:04:11,671 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61e3b791-791a-46b4-b128-3e223b302986/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 11:04:11,672 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61e3b791-791a-46b4-b128-3e223b302986/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 11:04:11,677 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-10-17 11:04:11,677 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-10-17 11:04:11,704 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61e3b791-791a-46b4-b128-3e223b302986/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2022-10-17 11:04:12,152 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-10-17 11:04:12,156 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61e3b791-791a-46b4-b128-3e223b302986/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Ended with exit code 0 [2022-10-17 11:04:12,156 INFO L210 LassoAnalysis]: Preferences: [2022-10-17 11:04:12,156 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-10-17 11:04:12,156 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-10-17 11:04:12,156 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-10-17 11:04:12,156 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-10-17 11:04:12,156 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 11:04:12,156 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-10-17 11:04:12,156 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-10-17 11:04:12,157 INFO L133 ssoRankerPreferences]: Filename of dumped script: heapsort.i_Iteration5_Loop [2022-10-17 11:04:12,157 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-10-17 11:04:12,157 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-10-17 11:04:12,158 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-10-17 11:04:12,180 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-10-17 11:04:12,183 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-10-17 11:04:12,189 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-10-17 11:04:12,280 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-10-17 11:04:12,280 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-10-17 11:04:12,281 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 11:04:12,281 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61e3b791-791a-46b4-b128-3e223b302986/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 11:04:12,282 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61e3b791-791a-46b4-b128-3e223b302986/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 11:04:12,294 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61e3b791-791a-46b4-b128-3e223b302986/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2022-10-17 11:04:12,295 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 [2022-10-17 11:04:12,309 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-10-17 11:04:12,310 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-10-17 11:04:12,310 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-10-17 11:04:12,310 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-10-17 11:04:12,310 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-10-17 11:04:12,314 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-10-17 11:04:12,314 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-10-17 11:04:12,327 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-10-17 11:04:12,339 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2022-10-17 11:04:12,339 INFO L444 ModelExtractionUtils]: 5 out of 7 variables were initially zero. Simplification set additionally 0 variables to zero. [2022-10-17 11:04:12,340 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 11:04:12,340 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61e3b791-791a-46b4-b128-3e223b302986/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 11:04:12,341 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61e3b791-791a-46b4-b128-3e223b302986/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 11:04:12,346 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-10-17 11:04:12,346 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-10-17 11:04:12,347 INFO L513 LassoAnalysis]: Proved termination. [2022-10-17 11:04:12,347 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 [] [2022-10-17 11:04:12,367 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61e3b791-791a-46b4-b128-3e223b302986/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2022-10-17 11:04:12,374 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61e3b791-791a-46b4-b128-3e223b302986/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Ended with exit code 0 [2022-10-17 11:04:12,375 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-10-17 11:04:12,407 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 11:04:12,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:04:12,419 INFO L263 TraceCheckSpWp]: Trace formula consists of 42 conjuncts, 2 conjunts are in the unsatisfiable core [2022-10-17 11:04:12,420 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 11:04:12,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:04:12,434 INFO L263 TraceCheckSpWp]: Trace formula consists of 34 conjuncts, 4 conjunts are in the unsatisfiable core [2022-10-17 11:04:12,443 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 11:04:12,509 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 11:04:12,510 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 [2022-10-17 11:04:12,510 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) [2022-10-17 11:04:12,546 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. [2022-10-17 11:04:12,546 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 [2022-10-17 11:04:12,548 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) [2022-10-17 11:04:12,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 80 transitions. [2022-10-17 11:04:12,549 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 80 transitions. Stem has 4 letters. Loop has 14 letters. [2022-10-17 11:04:12,550 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-10-17 11:04:12,550 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 80 transitions. Stem has 18 letters. Loop has 14 letters. [2022-10-17 11:04:12,551 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-10-17 11:04:12,552 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 80 transitions. Stem has 4 letters. Loop has 28 letters. [2022-10-17 11:04:12,554 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-10-17 11:04:12,554 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 133 states and 153 transitions. [2022-10-17 11:04:12,556 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 57 [2022-10-17 11:04:12,557 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 133 states to 128 states and 147 transitions. [2022-10-17 11:04:12,557 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 63 [2022-10-17 11:04:12,557 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 64 [2022-10-17 11:04:12,557 INFO L73 IsDeterministic]: Start isDeterministic. Operand 128 states and 147 transitions. [2022-10-17 11:04:12,561 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-10-17 11:04:12,562 INFO L218 hiAutomatonCegarLoop]: Abstraction has 128 states and 147 transitions. [2022-10-17 11:04:12,562 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 128 states and 147 transitions. [2022-10-17 11:04:12,574 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 128 to 127. [2022-10-17 11:04:12,574 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) [2022-10-17 11:04:12,575 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127 states to 127 states and 146 transitions. [2022-10-17 11:04:12,575 INFO L240 hiAutomatonCegarLoop]: Abstraction has 127 states and 146 transitions. [2022-10-17 11:04:12,576 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 11:04:12,576 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-17 11:04:12,576 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-17 11:04:12,576 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) [2022-10-17 11:04:12,610 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 11:04:12,610 INFO L93 Difference]: Finished difference Result 70 states and 80 transitions. [2022-10-17 11:04:12,610 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 70 states and 80 transitions. [2022-10-17 11:04:12,611 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 32 [2022-10-17 11:04:12,611 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 70 states to 69 states and 79 transitions. [2022-10-17 11:04:12,611 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 37 [2022-10-17 11:04:12,612 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 37 [2022-10-17 11:04:12,612 INFO L73 IsDeterministic]: Start isDeterministic. Operand 69 states and 79 transitions. [2022-10-17 11:04:12,612 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-10-17 11:04:12,612 INFO L218 hiAutomatonCegarLoop]: Abstraction has 69 states and 79 transitions. [2022-10-17 11:04:12,612 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states and 79 transitions. [2022-10-17 11:04:12,614 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 69. [2022-10-17 11:04:12,615 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) [2022-10-17 11:04:12,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 79 transitions. [2022-10-17 11:04:12,619 INFO L240 hiAutomatonCegarLoop]: Abstraction has 69 states and 79 transitions. [2022-10-17 11:04:12,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-17 11:04:12,623 INFO L428 stractBuchiCegarLoop]: Abstraction has 69 states and 79 transitions. [2022-10-17 11:04:12,623 INFO L335 stractBuchiCegarLoop]: ======== Iteration 6 ============ [2022-10-17 11:04:12,623 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 69 states and 79 transitions. [2022-10-17 11:04:12,624 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 32 [2022-10-17 11:04:12,624 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-10-17 11:04:12,624 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-10-17 11:04:12,624 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2022-10-17 11:04:12,624 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 11:04:12,625 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 [2022-10-17 11:04:12,625 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 [2022-10-17 11:04:12,625 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 11:04:12,625 INFO L85 PathProgramCache]: Analyzing trace with hash 28695791, now seen corresponding path program 1 times [2022-10-17 11:04:12,625 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 11:04:12,625 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1991408109] [2022-10-17 11:04:12,626 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 11:04:12,626 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 11:04:12,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 11:04:12,645 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-10-17 11:04:12,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 11:04:12,651 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-10-17 11:04:12,652 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 11:04:12,652 INFO L85 PathProgramCache]: Analyzing trace with hash -1285304700, now seen corresponding path program 2 times [2022-10-17 11:04:12,652 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 11:04:12,652 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1907371430] [2022-10-17 11:04:12,652 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 11:04:12,653 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 11:04:12,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 11:04:12,673 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-10-17 11:04:12,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 11:04:12,693 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-10-17 11:04:12,693 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 11:04:12,693 INFO L85 PathProgramCache]: Analyzing trace with hash 765817586, now seen corresponding path program 1 times [2022-10-17 11:04:12,693 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 11:04:12,694 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [50511840] [2022-10-17 11:04:12,694 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 11:04:12,694 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 11:04:12,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:04:12,789 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 11:04:12,789 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 11:04:12,789 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [50511840] [2022-10-17 11:04:12,789 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [50511840] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 11:04:12,789 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 11:04:12,789 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-17 11:04:12,790 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [542782112] [2022-10-17 11:04:12,790 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 11:04:12,959 INFO L210 LassoAnalysis]: Preferences: [2022-10-17 11:04:12,959 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-10-17 11:04:12,959 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-10-17 11:04:12,959 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-10-17 11:04:12,959 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-10-17 11:04:12,959 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 11:04:12,960 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-10-17 11:04:12,960 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-10-17 11:04:12,960 INFO L133 ssoRankerPreferences]: Filename of dumped script: heapsort.i_Iteration6_Loop [2022-10-17 11:04:12,960 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-10-17 11:04:12,960 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-10-17 11:04:12,961 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-10-17 11:04:12,965 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-10-17 11:04:12,971 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-10-17 11:04:12,989 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-10-17 11:04:13,057 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-10-17 11:04:13,057 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-10-17 11:04:13,057 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 11:04:13,058 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61e3b791-791a-46b4-b128-3e223b302986/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 11:04:13,063 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61e3b791-791a-46b4-b128-3e223b302986/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 11:04:13,070 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61e3b791-791a-46b4-b128-3e223b302986/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2022-10-17 11:04:13,070 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-10-17 11:04:13,071 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-10-17 11:04:13,091 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-10-17 11:04:13,091 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: [] [2022-10-17 11:04:13,127 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61e3b791-791a-46b4-b128-3e223b302986/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Forceful destruction successful, exit code 0 [2022-10-17 11:04:13,127 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 11:04:13,127 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61e3b791-791a-46b4-b128-3e223b302986/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 11:04:13,128 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61e3b791-791a-46b4-b128-3e223b302986/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 11:04:13,134 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-10-17 11:04:13,134 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-10-17 11:04:13,150 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61e3b791-791a-46b4-b128-3e223b302986/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2022-10-17 11:04:13,155 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-10-17 11:04:13,155 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: [] [2022-10-17 11:04:13,194 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61e3b791-791a-46b4-b128-3e223b302986/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Forceful destruction successful, exit code 0 [2022-10-17 11:04:13,195 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 11:04:13,195 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61e3b791-791a-46b4-b128-3e223b302986/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 11:04:13,196 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61e3b791-791a-46b4-b128-3e223b302986/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 11:04:13,202 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-10-17 11:04:13,202 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-10-17 11:04:13,214 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61e3b791-791a-46b4-b128-3e223b302986/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2022-10-17 11:04:13,270 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61e3b791-791a-46b4-b128-3e223b302986/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Forceful destruction successful, exit code 0 [2022-10-17 11:04:13,270 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 11:04:13,270 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61e3b791-791a-46b4-b128-3e223b302986/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 11:04:13,271 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61e3b791-791a-46b4-b128-3e223b302986/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 11:04:13,274 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-10-17 11:04:13,274 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-10-17 11:04:13,303 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61e3b791-791a-46b4-b128-3e223b302986/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2022-10-17 11:04:13,603 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-10-17 11:04:13,606 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61e3b791-791a-46b4-b128-3e223b302986/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Ended with exit code 0 [2022-10-17 11:04:13,607 INFO L210 LassoAnalysis]: Preferences: [2022-10-17 11:04:13,607 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-10-17 11:04:13,607 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-10-17 11:04:13,607 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-10-17 11:04:13,607 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-10-17 11:04:13,607 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 11:04:13,607 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-10-17 11:04:13,607 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-10-17 11:04:13,607 INFO L133 ssoRankerPreferences]: Filename of dumped script: heapsort.i_Iteration6_Loop [2022-10-17 11:04:13,607 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-10-17 11:04:13,607 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-10-17 11:04:13,608 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-10-17 11:04:13,611 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-10-17 11:04:13,625 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-10-17 11:04:13,627 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-10-17 11:04:13,679 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61e3b791-791a-46b4-b128-3e223b302986/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Forceful destruction successful, exit code 0 [2022-10-17 11:04:13,726 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-10-17 11:04:13,726 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-10-17 11:04:13,727 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 11:04:13,727 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61e3b791-791a-46b4-b128-3e223b302986/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 11:04:13,728 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61e3b791-791a-46b4-b128-3e223b302986/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 11:04:13,736 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 [2022-10-17 11:04:13,744 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-10-17 11:04:13,745 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-10-17 11:04:13,745 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-10-17 11:04:13,745 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2022-10-17 11:04:13,745 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-10-17 11:04:13,746 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2022-10-17 11:04:13,746 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-10-17 11:04:13,748 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61e3b791-791a-46b4-b128-3e223b302986/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2022-10-17 11:04:13,763 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-10-17 11:04:13,798 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61e3b791-791a-46b4-b128-3e223b302986/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Forceful destruction successful, exit code 0 [2022-10-17 11:04:13,799 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 11:04:13,799 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61e3b791-791a-46b4-b128-3e223b302986/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 11:04:13,800 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61e3b791-791a-46b4-b128-3e223b302986/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 11:04:13,802 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 [2022-10-17 11:04:13,811 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-10-17 11:04:13,811 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-10-17 11:04:13,811 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-10-17 11:04:13,811 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-10-17 11:04:13,811 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-10-17 11:04:13,814 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-10-17 11:04:13,814 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-10-17 11:04:13,818 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61e3b791-791a-46b4-b128-3e223b302986/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process [2022-10-17 11:04:13,831 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-10-17 11:04:13,836 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2022-10-17 11:04:13,836 INFO L444 ModelExtractionUtils]: 4 out of 7 variables were initially zero. Simplification set additionally 1 variables to zero. [2022-10-17 11:04:13,837 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 11:04:13,837 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61e3b791-791a-46b4-b128-3e223b302986/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 11:04:13,838 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61e3b791-791a-46b4-b128-3e223b302986/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 11:04:13,839 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-10-17 11:04:13,839 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-10-17 11:04:13,840 INFO L513 LassoAnalysis]: Proved termination. [2022-10-17 11:04:13,840 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 [] [2022-10-17 11:04:13,857 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61e3b791-791a-46b4-b128-3e223b302986/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Waiting until timeout for monitored process [2022-10-17 11:04:13,872 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61e3b791-791a-46b4-b128-3e223b302986/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Ended with exit code 0 [2022-10-17 11:04:13,873 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-10-17 11:04:13,884 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 11:04:13,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:04:13,905 INFO L263 TraceCheckSpWp]: Trace formula consists of 47 conjuncts, 2 conjunts are in the unsatisfiable core [2022-10-17 11:04:13,905 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 11:04:13,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:04:13,930 INFO L263 TraceCheckSpWp]: Trace formula consists of 34 conjuncts, 4 conjunts are in the unsatisfiable core [2022-10-17 11:04:13,931 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 11:04:13,961 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 11:04:13,963 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 [2022-10-17 11:04:13,963 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) [2022-10-17 11:04:14,003 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. [2022-10-17 11:04:14,003 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 [2022-10-17 11:04:14,004 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) [2022-10-17 11:04:14,004 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 47 transitions. [2022-10-17 11:04:14,004 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 47 transitions. Stem has 5 letters. Loop has 14 letters. [2022-10-17 11:04:14,005 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-10-17 11:04:14,005 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 47 transitions. Stem has 19 letters. Loop has 14 letters. [2022-10-17 11:04:14,005 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-10-17 11:04:14,005 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 47 transitions. Stem has 5 letters. Loop has 28 letters. [2022-10-17 11:04:14,005 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-10-17 11:04:14,006 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 137 states and 159 transitions. [2022-10-17 11:04:14,007 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 25 [2022-10-17 11:04:14,008 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 137 states to 131 states and 152 transitions. [2022-10-17 11:04:14,008 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 33 [2022-10-17 11:04:14,009 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 34 [2022-10-17 11:04:14,009 INFO L73 IsDeterministic]: Start isDeterministic. Operand 131 states and 152 transitions. [2022-10-17 11:04:14,009 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-10-17 11:04:14,009 INFO L218 hiAutomatonCegarLoop]: Abstraction has 131 states and 152 transitions. [2022-10-17 11:04:14,009 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 131 states and 152 transitions. [2022-10-17 11:04:14,012 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 131 to 129. [2022-10-17 11:04:14,012 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) [2022-10-17 11:04:14,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129 states to 129 states and 149 transitions. [2022-10-17 11:04:14,013 INFO L240 hiAutomatonCegarLoop]: Abstraction has 129 states and 149 transitions. [2022-10-17 11:04:14,013 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 11:04:14,014 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-17 11:04:14,014 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-10-17 11:04:14,014 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) [2022-10-17 11:04:14,172 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 11:04:14,173 INFO L93 Difference]: Finished difference Result 430 states and 476 transitions. [2022-10-17 11:04:14,173 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 430 states and 476 transitions. [2022-10-17 11:04:14,178 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 64 [2022-10-17 11:04:14,181 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 430 states to 379 states and 421 transitions. [2022-10-17 11:04:14,181 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 96 [2022-10-17 11:04:14,182 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 96 [2022-10-17 11:04:14,182 INFO L73 IsDeterministic]: Start isDeterministic. Operand 379 states and 421 transitions. [2022-10-17 11:04:14,183 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-10-17 11:04:14,183 INFO L218 hiAutomatonCegarLoop]: Abstraction has 379 states and 421 transitions. [2022-10-17 11:04:14,184 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 379 states and 421 transitions. [2022-10-17 11:04:14,190 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 379 to 130. [2022-10-17 11:04:14,190 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) [2022-10-17 11:04:14,191 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 130 states to 130 states and 150 transitions. [2022-10-17 11:04:14,191 INFO L240 hiAutomatonCegarLoop]: Abstraction has 130 states and 150 transitions. [2022-10-17 11:04:14,192 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-10-17 11:04:14,192 INFO L428 stractBuchiCegarLoop]: Abstraction has 130 states and 150 transitions. [2022-10-17 11:04:14,192 INFO L335 stractBuchiCegarLoop]: ======== Iteration 7 ============ [2022-10-17 11:04:14,192 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 130 states and 150 transitions. [2022-10-17 11:04:14,193 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 25 [2022-10-17 11:04:14,193 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-10-17 11:04:14,194 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-10-17 11:04:14,194 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2022-10-17 11:04:14,194 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 11:04:14,194 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 [2022-10-17 11:04:14,195 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 [2022-10-17 11:04:14,195 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 11:04:14,195 INFO L85 PathProgramCache]: Analyzing trace with hash 889569551, now seen corresponding path program 1 times [2022-10-17 11:04:14,196 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 11:04:14,196 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [824549293] [2022-10-17 11:04:14,196 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 11:04:14,196 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 11:04:14,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 11:04:14,202 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-10-17 11:04:14,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 11:04:14,208 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-10-17 11:04:14,209 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 11:04:14,209 INFO L85 PathProgramCache]: Analyzing trace with hash 184163919, now seen corresponding path program 1 times [2022-10-17 11:04:14,209 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 11:04:14,209 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1325205807] [2022-10-17 11:04:14,209 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 11:04:14,209 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 11:04:14,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:04:14,314 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 11:04:14,314 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 11:04:14,315 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1325205807] [2022-10-17 11:04:14,316 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1325205807] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 11:04:14,316 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 11:04:14,316 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-17 11:04:14,316 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1612022389] [2022-10-17 11:04:14,316 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 11:04:14,317 INFO L765 eck$LassoCheckResult]: loop already infeasible [2022-10-17 11:04:14,317 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 11:04:14,318 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-17 11:04:14,318 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-10-17 11:04:14,318 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) [2022-10-17 11:04:14,488 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 11:04:14,489 INFO L93 Difference]: Finished difference Result 239 states and 267 transitions. [2022-10-17 11:04:14,489 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 239 states and 267 transitions. [2022-10-17 11:04:14,490 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 25 [2022-10-17 11:04:14,492 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 239 states to 224 states and 252 transitions. [2022-10-17 11:04:14,492 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 32 [2022-10-17 11:04:14,493 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 32 [2022-10-17 11:04:14,493 INFO L73 IsDeterministic]: Start isDeterministic. Operand 224 states and 252 transitions. [2022-10-17 11:04:14,493 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-10-17 11:04:14,493 INFO L218 hiAutomatonCegarLoop]: Abstraction has 224 states and 252 transitions. [2022-10-17 11:04:14,493 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 224 states and 252 transitions. [2022-10-17 11:04:14,496 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 224 to 175. [2022-10-17 11:04:14,497 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) [2022-10-17 11:04:14,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 175 states to 175 states and 197 transitions. [2022-10-17 11:04:14,498 INFO L240 hiAutomatonCegarLoop]: Abstraction has 175 states and 197 transitions. [2022-10-17 11:04:14,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-10-17 11:04:14,499 INFO L428 stractBuchiCegarLoop]: Abstraction has 175 states and 197 transitions. [2022-10-17 11:04:14,499 INFO L335 stractBuchiCegarLoop]: ======== Iteration 8 ============ [2022-10-17 11:04:14,499 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 175 states and 197 transitions. [2022-10-17 11:04:14,500 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 25 [2022-10-17 11:04:14,500 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-10-17 11:04:14,500 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-10-17 11:04:14,502 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2022-10-17 11:04:14,502 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] [2022-10-17 11:04:14,502 INFO L748 eck$LassoCheckResult]: Stem: 3113#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(9, 2); 3070#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;main_#in~argc#1, main_#in~argv#1.base, main_#in~argv#1.offset := #in~argc#1, #in~argv#1.base, #in~argv#1.offset;havoc main_#res#1;havoc main_#t~nondet1#1, main_#t~post2#1, main_#t~post3#1, main_#t~nondet4#1, main_#t~nondet5#1, main_#t~post6#1, main_#t~post7#1, main_~argc#1, main_~argv#1.base, main_~argv#1.offset, main_~n~0#1, main_~l~0#1, main_~r~0#1, main_~i~0#1, main_~j~0#1;main_~argc#1 := main_#in~argc#1;main_~argv#1.base, main_~argv#1.offset := main_#in~argv#1.base, main_#in~argv#1.offset;havoc main_~n~0#1;havoc main_~l~0#1;havoc main_~r~0#1;havoc main_~i~0#1;havoc main_~j~0#1;main_~n~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1; 3071#L27 assume !!(1 <= main_~n~0#1 && main_~n~0#1 <= 1000000);main_~l~0#1 := 1 + (if main_~n~0#1 < 0 && 0 != main_~n~0#1 % 2 then 1 + main_~n~0#1 / 2 else main_~n~0#1 / 2);main_~r~0#1 := main_~n~0#1; 3056#L30 assume main_~l~0#1 > 1;main_#t~post2#1 := main_~l~0#1;main_~l~0#1 := main_#t~post2#1 - 1;havoc main_#t~post2#1; 3057#L59-1 assume !!(main_~r~0#1 > 1);main_~i~0#1 := main_~l~0#1;main_~j~0#1 := 2 * main_~l~0#1; 3088#L38-2 assume !!(main_~j~0#1 <= main_~r~0#1); 3100#L39 [2022-10-17 11:04:14,503 INFO L750 eck$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 [2022-10-17 11:04:14,503 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 11:04:14,503 INFO L85 PathProgramCache]: Analyzing trace with hash 889569551, now seen corresponding path program 2 times [2022-10-17 11:04:14,504 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 11:04:14,504 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [415632549] [2022-10-17 11:04:14,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 11:04:14,504 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 11:04:14,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 11:04:14,512 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-10-17 11:04:14,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 11:04:14,526 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-10-17 11:04:14,527 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 11:04:14,528 INFO L85 PathProgramCache]: Analyzing trace with hash -1105792449, now seen corresponding path program 1 times [2022-10-17 11:04:14,528 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 11:04:14,528 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1700349151] [2022-10-17 11:04:14,528 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 11:04:14,528 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 11:04:14,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 11:04:14,553 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-10-17 11:04:14,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 11:04:14,584 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-10-17 11:04:14,585 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 11:04:14,585 INFO L85 PathProgramCache]: Analyzing trace with hash -1170285327, now seen corresponding path program 1 times [2022-10-17 11:04:14,585 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 11:04:14,586 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [331450685] [2022-10-17 11:04:14,586 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 11:04:14,586 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 11:04:14,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:04:14,742 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 11:04:14,742 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 11:04:14,742 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [331450685] [2022-10-17 11:04:14,742 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [331450685] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-17 11:04:14,742 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2144941581] [2022-10-17 11:04:14,742 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 11:04:14,743 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-17 11:04:14,743 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61e3b791-791a-46b4-b128-3e223b302986/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 11:04:14,744 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61e3b791-791a-46b4-b128-3e223b302986/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-17 11:04:14,759 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61e3b791-791a-46b4-b128-3e223b302986/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Waiting until timeout for monitored process [2022-10-17 11:04:14,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:04:14,788 INFO L263 TraceCheckSpWp]: Trace formula consists of 111 conjuncts, 9 conjunts are in the unsatisfiable core [2022-10-17 11:04:14,790 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 11:04:14,861 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61e3b791-791a-46b4-b128-3e223b302986/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Forceful destruction successful, exit code 0 [2022-10-17 11:04:15,054 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 11:04:15,054 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-17 11:04:15,055 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2144941581] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 11:04:15,055 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-17 11:04:15,055 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [6] total 11 [2022-10-17 11:04:15,055 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1948152098] [2022-10-17 11:04:15,055 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 11:04:15,366 INFO L210 LassoAnalysis]: Preferences: [2022-10-17 11:04:15,366 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-10-17 11:04:15,366 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-10-17 11:04:15,367 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-10-17 11:04:15,367 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-10-17 11:04:15,367 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 11:04:15,367 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-10-17 11:04:15,367 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-10-17 11:04:15,367 INFO L133 ssoRankerPreferences]: Filename of dumped script: heapsort.i_Iteration8_Loop [2022-10-17 11:04:15,367 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-10-17 11:04:15,367 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-10-17 11:04:15,368 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-10-17 11:04:15,371 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-10-17 11:04:15,386 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-10-17 11:04:15,389 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-10-17 11:04:15,455 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-10-17 11:04:15,455 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-10-17 11:04:15,456 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 11:04:15,456 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61e3b791-791a-46b4-b128-3e223b302986/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 11:04:15,457 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61e3b791-791a-46b4-b128-3e223b302986/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 11:04:15,458 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61e3b791-791a-46b4-b128-3e223b302986/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Waiting until timeout for monitored process [2022-10-17 11:04:15,459 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-10-17 11:04:15,459 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-10-17 11:04:15,477 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-10-17 11:04:15,478 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: [] [2022-10-17 11:04:15,506 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61e3b791-791a-46b4-b128-3e223b302986/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Forceful destruction successful, exit code 0 [2022-10-17 11:04:15,506 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 11:04:15,506 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61e3b791-791a-46b4-b128-3e223b302986/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 11:04:15,509 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61e3b791-791a-46b4-b128-3e223b302986/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 11:04:15,519 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-10-17 11:04:15,520 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-10-17 11:04:15,541 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61e3b791-791a-46b4-b128-3e223b302986/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Waiting until timeout for monitored process [2022-10-17 11:04:15,574 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61e3b791-791a-46b4-b128-3e223b302986/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Forceful destruction successful, exit code 0 [2022-10-17 11:04:15,574 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 11:04:15,574 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61e3b791-791a-46b4-b128-3e223b302986/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 11:04:15,576 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61e3b791-791a-46b4-b128-3e223b302986/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 11:04:15,577 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61e3b791-791a-46b4-b128-3e223b302986/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Waiting until timeout for monitored process [2022-10-17 11:04:15,577 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-10-17 11:04:15,577 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-10-17 11:04:15,709 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-10-17 11:04:15,711 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61e3b791-791a-46b4-b128-3e223b302986/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Forceful destruction successful, exit code 0 [2022-10-17 11:04:15,711 INFO L210 LassoAnalysis]: Preferences: [2022-10-17 11:04:15,712 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-10-17 11:04:15,712 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-10-17 11:04:15,712 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-10-17 11:04:15,712 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-10-17 11:04:15,712 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 11:04:15,712 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-10-17 11:04:15,712 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-10-17 11:04:15,712 INFO L133 ssoRankerPreferences]: Filename of dumped script: heapsort.i_Iteration8_Loop [2022-10-17 11:04:15,712 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-10-17 11:04:15,712 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-10-17 11:04:15,713 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-10-17 11:04:15,727 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-10-17 11:04:15,744 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-10-17 11:04:15,751 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-10-17 11:04:15,844 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-10-17 11:04:15,844 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-10-17 11:04:15,844 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 11:04:15,844 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61e3b791-791a-46b4-b128-3e223b302986/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 11:04:15,863 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61e3b791-791a-46b4-b128-3e223b302986/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 11:04:15,893 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 [2022-10-17 11:04:15,893 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61e3b791-791a-46b4-b128-3e223b302986/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Waiting until timeout for monitored process [2022-10-17 11:04:15,901 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-10-17 11:04:15,901 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-10-17 11:04:15,901 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-10-17 11:04:15,901 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2022-10-17 11:04:15,901 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-10-17 11:04:15,902 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2022-10-17 11:04:15,902 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-10-17 11:04:15,931 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-10-17 11:04:15,984 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61e3b791-791a-46b4-b128-3e223b302986/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Forceful destruction successful, exit code 0 [2022-10-17 11:04:15,984 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 11:04:15,984 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61e3b791-791a-46b4-b128-3e223b302986/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 11:04:15,985 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61e3b791-791a-46b4-b128-3e223b302986/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 11:04:15,988 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 [2022-10-17 11:04:15,997 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-10-17 11:04:15,997 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-10-17 11:04:15,997 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-10-17 11:04:15,997 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-10-17 11:04:15,997 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-10-17 11:04:16,000 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-10-17 11:04:16,000 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-10-17 11:04:16,004 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61e3b791-791a-46b4-b128-3e223b302986/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Waiting until timeout for monitored process [2022-10-17 11:04:16,015 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-10-17 11:04:16,021 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2022-10-17 11:04:16,021 INFO L444 ModelExtractionUtils]: 2 out of 6 variables were initially zero. Simplification set additionally 1 variables to zero. [2022-10-17 11:04:16,021 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 11:04:16,022 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61e3b791-791a-46b4-b128-3e223b302986/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 11:04:16,022 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61e3b791-791a-46b4-b128-3e223b302986/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 11:04:16,023 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61e3b791-791a-46b4-b128-3e223b302986/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Waiting until timeout for monitored process [2022-10-17 11:04:16,023 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-10-17 11:04:16,023 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-10-17 11:04:16,023 INFO L513 LassoAnalysis]: Proved termination. [2022-10-17 11:04:16,023 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 [] [2022-10-17 11:04:16,045 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61e3b791-791a-46b4-b128-3e223b302986/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Forceful destruction successful, exit code 0 [2022-10-17 11:04:16,047 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-10-17 11:04:16,065 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 11:04:16,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:04:16,077 INFO L263 TraceCheckSpWp]: Trace formula consists of 48 conjuncts, 2 conjunts are in the unsatisfiable core [2022-10-17 11:04:16,077 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 11:04:16,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:04:16,099 INFO L263 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 14 conjunts are in the unsatisfiable core [2022-10-17 11:04:16,101 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 11:04:16,241 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61e3b791-791a-46b4-b128-3e223b302986/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Forceful destruction successful, exit code 0 [2022-10-17 11:04:16,379 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 11:04:16,379 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 [2022-10-17 11:04:16,379 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) [2022-10-17 11:04:16,493 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. [2022-10-17 11:04:16,493 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 [2022-10-17 11:04:16,494 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) [2022-10-17 11:04:16,494 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 47 transitions. [2022-10-17 11:04:16,494 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 47 transitions. Stem has 6 letters. Loop has 25 letters. [2022-10-17 11:04:16,495 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-10-17 11:04:16,495 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2022-10-17 11:04:16,506 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 11:04:16,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:04:16,518 INFO L263 TraceCheckSpWp]: Trace formula consists of 48 conjuncts, 2 conjunts are in the unsatisfiable core [2022-10-17 11:04:16,518 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 11:04:16,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:04:16,543 INFO L263 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 14 conjunts are in the unsatisfiable core [2022-10-17 11:04:16,544 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 11:04:16,766 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 11:04:16,766 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 [2022-10-17 11:04:16,767 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) [2022-10-17 11:04:16,918 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. [2022-10-17 11:04:16,918 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 [2022-10-17 11:04:16,919 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) [2022-10-17 11:04:16,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 47 transitions. [2022-10-17 11:04:16,919 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 47 transitions. Stem has 6 letters. Loop has 25 letters. [2022-10-17 11:04:16,919 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-10-17 11:04:16,919 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2022-10-17 11:04:16,930 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 11:04:16,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:04:16,941 INFO L263 TraceCheckSpWp]: Trace formula consists of 48 conjuncts, 2 conjunts are in the unsatisfiable core [2022-10-17 11:04:16,942 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 11:04:16,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:04:16,963 INFO L263 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 14 conjunts are in the unsatisfiable core [2022-10-17 11:04:16,964 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 11:04:17,204 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 11:04:17,205 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 [2022-10-17 11:04:17,205 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) [2022-10-17 11:04:17,314 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. [2022-10-17 11:04:17,314 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 [2022-10-17 11:04:17,315 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) [2022-10-17 11:04:17,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 86 transitions. [2022-10-17 11:04:17,315 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 86 transitions. Stem has 6 letters. Loop has 25 letters. [2022-10-17 11:04:17,316 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-10-17 11:04:17,316 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2022-10-17 11:04:17,326 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 11:04:17,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:04:17,338 INFO L263 TraceCheckSpWp]: Trace formula consists of 48 conjuncts, 2 conjunts are in the unsatisfiable core [2022-10-17 11:04:17,338 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 11:04:17,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:04:17,360 INFO L263 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 14 conjunts are in the unsatisfiable core [2022-10-17 11:04:17,361 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 11:04:17,588 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 11:04:17,589 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 [2022-10-17 11:04:17,589 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) [2022-10-17 11:04:17,739 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. [2022-10-17 11:04:17,741 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 [2022-10-17 11:04:17,741 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) [2022-10-17 11:04:17,741 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 86 transitions. [2022-10-17 11:04:17,742 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 86 transitions. Stem has 6 letters. Loop has 25 letters. [2022-10-17 11:04:17,742 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-10-17 11:04:17,742 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2022-10-17 11:04:17,753 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 11:04:17,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:04:17,764 INFO L263 TraceCheckSpWp]: Trace formula consists of 48 conjuncts, 2 conjunts are in the unsatisfiable core [2022-10-17 11:04:17,764 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 11:04:17,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:04:17,793 INFO L263 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 14 conjunts are in the unsatisfiable core [2022-10-17 11:04:17,795 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 11:04:18,034 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 11:04:18,035 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 [2022-10-17 11:04:18,036 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) [2022-10-17 11:04:18,376 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 [2022-10-17 11:04:18,377 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 [2022-10-17 11:04:18,377 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) [2022-10-17 11:04:18,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 196 transitions. [2022-10-17 11:04:18,378 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 196 transitions. Stem has 6 letters. Loop has 25 letters. [2022-10-17 11:04:18,379 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-10-17 11:04:18,379 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2022-10-17 11:04:18,380 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) [2022-10-17 11:04:18,388 INFO L158 Benchmark]: Toolchain (without parser) took 12091.29ms. Allocated memory was 107.0MB in the beginning and 157.3MB in the end (delta: 50.3MB). Free memory was 72.7MB in the beginning and 89.8MB in the end (delta: -17.1MB). Peak memory consumption was 33.2MB. Max. memory is 16.1GB. [2022-10-17 11:04:18,388 INFO L158 Benchmark]: CDTParser took 0.25ms. Allocated memory is still 107.0MB. Free memory was 59.7MB in the beginning and 59.7MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. [2022-10-17 11:04:18,389 INFO L158 Benchmark]: CACSL2BoogieTranslator took 291.99ms. Allocated memory is still 107.0MB. Free memory was 72.4MB in the beginning and 81.0MB in the end (delta: -8.6MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2022-10-17 11:04:18,390 INFO L158 Benchmark]: Boogie Procedure Inliner took 49.88ms. Allocated memory is still 107.0MB. Free memory was 81.0MB in the beginning and 79.3MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-10-17 11:04:18,390 INFO L158 Benchmark]: Boogie Preprocessor took 40.88ms. Allocated memory is still 107.0MB. Free memory was 78.9MB in the beginning and 77.7MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2022-10-17 11:04:18,390 INFO L158 Benchmark]: RCFGBuilder took 500.60ms. Allocated memory is still 107.0MB. Free memory was 77.7MB in the beginning and 64.7MB in the end (delta: 13.0MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-10-17 11:04:18,391 INFO L158 Benchmark]: BuchiAutomizer took 11200.67ms. Allocated memory was 107.0MB in the beginning and 157.3MB in the end (delta: 50.3MB). Free memory was 64.2MB in the beginning and 89.8MB in the end (delta: -25.5MB). Peak memory consumption was 25.6MB. Max. memory is 16.1GB. [2022-10-17 11:04:18,395 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25ms. Allocated memory is still 107.0MB. Free memory was 59.7MB in the beginning and 59.7MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 291.99ms. Allocated memory is still 107.0MB. Free memory was 72.4MB in the beginning and 81.0MB in the end (delta: -8.6MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 49.88ms. Allocated memory is still 107.0MB. Free memory was 81.0MB in the beginning and 79.3MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 40.88ms. Allocated memory is still 107.0MB. Free memory was 78.9MB in the beginning and 77.7MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 500.60ms. Allocated memory is still 107.0MB. Free memory was 77.7MB in the beginning and 64.7MB in the end (delta: 13.0MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * BuchiAutomizer took 11200.67ms. Allocated memory was 107.0MB in the beginning and 157.3MB in the end (delta: 50.3MB). Free memory was 64.2MB in the beginning and 89.8MB in the end (delta: -25.5MB). Peak memory consumption was 25.6MB. 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. [2022-10-17 11:04:18,442 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61e3b791-791a-46b4-b128-3e223b302986/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Forceful destruction successful, exit code 0 [2022-10-17 11:04:18,650 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61e3b791-791a-46b4-b128-3e223b302986/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis No suitable file found in config dir /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61e3b791-791a-46b4-b128-3e223b302986/bin/uautomizer-J5u9QxTXDZ/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