./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-memory-linkedlists/ll_append-alloca-2.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 8393723b Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1530094b-1624-4c96-a381-44cdff0a0e8e/bin/uautomizer-TMbwUNV5ro/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1530094b-1624-4c96-a381-44cdff0a0e8e/bin/uautomizer-TMbwUNV5ro/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1530094b-1624-4c96-a381-44cdff0a0e8e/bin/uautomizer-TMbwUNV5ro/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1530094b-1624-4c96-a381-44cdff0a0e8e/bin/uautomizer-TMbwUNV5ro/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-memory-linkedlists/ll_append-alloca-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1530094b-1624-4c96-a381-44cdff0a0e8e/bin/uautomizer-TMbwUNV5ro/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1530094b-1624-4c96-a381-44cdff0a0e8e/bin/uautomizer-TMbwUNV5ro --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 64bit --witnessprinter.graph.data.programhash a94e514ac338898e2e1e54a42b19ae4490ac5c412319209fc14736a6de9b7386 --- 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-8393723 [2022-11-18 19:43:11,721 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-18 19:43:11,723 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-18 19:43:11,744 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-18 19:43:11,745 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-18 19:43:11,746 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-18 19:43:11,747 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-18 19:43:11,749 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-18 19:43:11,751 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-18 19:43:11,752 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-18 19:43:11,754 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-18 19:43:11,755 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-18 19:43:11,756 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-18 19:43:11,757 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-18 19:43:11,759 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-18 19:43:11,760 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-18 19:43:11,761 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-18 19:43:11,763 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-18 19:43:11,765 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-18 19:43:11,767 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-18 19:43:11,769 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-18 19:43:11,771 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-18 19:43:11,772 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-18 19:43:11,774 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-18 19:43:11,778 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-18 19:43:11,779 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-18 19:43:11,779 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-18 19:43:11,780 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-18 19:43:11,781 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-18 19:43:11,782 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-18 19:43:11,783 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-18 19:43:11,784 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-18 19:43:11,785 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-18 19:43:11,786 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-18 19:43:11,787 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-18 19:43:11,788 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-18 19:43:11,789 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-18 19:43:11,789 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-18 19:43:11,790 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-18 19:43:11,791 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-18 19:43:11,792 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-18 19:43:11,797 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1530094b-1624-4c96-a381-44cdff0a0e8e/bin/uautomizer-TMbwUNV5ro/config/svcomp-Termination-64bit-Automizer_Default.epf [2022-11-18 19:43:11,836 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-18 19:43:11,841 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-18 19:43:11,843 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-18 19:43:11,843 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-18 19:43:11,844 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-18 19:43:11,845 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-18 19:43:11,845 INFO L138 SettingsManager]: * Use SBE=true [2022-11-18 19:43:11,846 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-11-18 19:43:11,846 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-11-18 19:43:11,846 INFO L138 SettingsManager]: * Use old map elimination=false [2022-11-18 19:43:11,848 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-11-18 19:43:11,848 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-11-18 19:43:11,848 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-11-18 19:43:11,849 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-18 19:43:11,849 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-18 19:43:11,849 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-18 19:43:11,849 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-18 19:43:11,850 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-11-18 19:43:11,850 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-11-18 19:43:11,850 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-11-18 19:43:11,851 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-18 19:43:11,851 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-11-18 19:43:11,851 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-18 19:43:11,853 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-11-18 19:43:11,854 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-18 19:43:11,854 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-18 19:43:11,854 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-18 19:43:11,855 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-18 19:43:11,856 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-11-18 19:43:11,857 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_1530094b-1624-4c96-a381-44cdff0a0e8e/bin/uautomizer-TMbwUNV5ro/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1530094b-1624-4c96-a381-44cdff0a0e8e/bin/uautomizer-TMbwUNV5ro Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a94e514ac338898e2e1e54a42b19ae4490ac5c412319209fc14736a6de9b7386 [2022-11-18 19:43:12,206 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-18 19:43:12,244 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-18 19:43:12,247 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-18 19:43:12,249 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-18 19:43:12,251 INFO L275 PluginConnector]: CDTParser initialized [2022-11-18 19:43:12,253 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1530094b-1624-4c96-a381-44cdff0a0e8e/bin/uautomizer-TMbwUNV5ro/../../sv-benchmarks/c/termination-memory-linkedlists/ll_append-alloca-2.i [2022-11-18 19:43:12,338 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1530094b-1624-4c96-a381-44cdff0a0e8e/bin/uautomizer-TMbwUNV5ro/data/a6df28c56/b965a62b952249c287ca8886c3318e12/FLAGc2110cd4d [2022-11-18 19:43:13,009 INFO L306 CDTParser]: Found 1 translation units. [2022-11-18 19:43:13,010 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1530094b-1624-4c96-a381-44cdff0a0e8e/sv-benchmarks/c/termination-memory-linkedlists/ll_append-alloca-2.i [2022-11-18 19:43:13,033 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1530094b-1624-4c96-a381-44cdff0a0e8e/bin/uautomizer-TMbwUNV5ro/data/a6df28c56/b965a62b952249c287ca8886c3318e12/FLAGc2110cd4d [2022-11-18 19:43:13,262 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1530094b-1624-4c96-a381-44cdff0a0e8e/bin/uautomizer-TMbwUNV5ro/data/a6df28c56/b965a62b952249c287ca8886c3318e12 [2022-11-18 19:43:13,270 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-18 19:43:13,272 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-18 19:43:13,275 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-18 19:43:13,276 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-18 19:43:13,280 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-18 19:43:13,281 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 07:43:13" (1/1) ... [2022-11-18 19:43:13,283 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@44f995b9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:43:13, skipping insertion in model container [2022-11-18 19:43:13,283 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 07:43:13" (1/1) ... [2022-11-18 19:43:13,292 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-18 19:43:13,354 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-18 19:43:13,716 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 19:43:13,729 INFO L203 MainTranslator]: Completed pre-run [2022-11-18 19:43:13,792 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 19:43:13,811 INFO L208 MainTranslator]: Completed translation [2022-11-18 19:43:13,812 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:43:13 WrapperNode [2022-11-18 19:43:13,812 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-18 19:43:13,813 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-18 19:43:13,813 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-18 19:43:13,813 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-18 19:43:13,822 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:43:13" (1/1) ... [2022-11-18 19:43:13,835 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:43:13" (1/1) ... [2022-11-18 19:43:13,853 INFO L138 Inliner]: procedures = 115, calls = 14, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 40 [2022-11-18 19:43:13,853 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-18 19:43:13,854 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-18 19:43:13,854 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-18 19:43:13,854 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-18 19:43:13,864 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:43:13" (1/1) ... [2022-11-18 19:43:13,864 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:43:13" (1/1) ... [2022-11-18 19:43:13,867 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:43:13" (1/1) ... [2022-11-18 19:43:13,868 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:43:13" (1/1) ... [2022-11-18 19:43:13,874 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:43:13" (1/1) ... [2022-11-18 19:43:13,879 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:43:13" (1/1) ... [2022-11-18 19:43:13,880 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:43:13" (1/1) ... [2022-11-18 19:43:13,881 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:43:13" (1/1) ... [2022-11-18 19:43:13,884 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-18 19:43:13,885 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-18 19:43:13,885 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-18 19:43:13,885 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-18 19:43:13,886 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:43:13" (1/1) ... [2022-11-18 19:43:13,893 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 19:43:13,905 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1530094b-1624-4c96-a381-44cdff0a0e8e/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:43:13,918 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1530094b-1624-4c96-a381-44cdff0a0e8e/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 19:43:13,952 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1530094b-1624-4c96-a381-44cdff0a0e8e/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2022-11-18 19:43:13,977 INFO L130 BoogieDeclarations]: Found specification of procedure new_ll [2022-11-18 19:43:13,977 INFO L138 BoogieDeclarations]: Found implementation of procedure new_ll [2022-11-18 19:43:13,977 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-18 19:43:13,980 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-18 19:43:13,980 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-18 19:43:13,980 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-18 19:43:13,980 INFO L130 BoogieDeclarations]: Found specification of procedure length [2022-11-18 19:43:13,981 INFO L138 BoogieDeclarations]: Found implementation of procedure length [2022-11-18 19:43:13,981 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-18 19:43:13,981 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-18 19:43:14,088 INFO L235 CfgBuilder]: Building ICFG [2022-11-18 19:43:14,090 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-18 19:43:14,372 INFO L276 CfgBuilder]: Performing block encoding [2022-11-18 19:43:14,379 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-18 19:43:14,380 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-18 19:43:14,382 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 07:43:14 BoogieIcfgContainer [2022-11-18 19:43:14,382 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-18 19:43:14,383 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-11-18 19:43:14,383 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-11-18 19:43:14,388 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-11-18 19:43:14,389 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-18 19:43:14,389 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 18.11 07:43:13" (1/3) ... [2022-11-18 19:43:14,390 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@614e66c9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 18.11 07:43:14, skipping insertion in model container [2022-11-18 19:43:14,391 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-18 19:43:14,391 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:43:13" (2/3) ... [2022-11-18 19:43:14,391 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@614e66c9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 18.11 07:43:14, skipping insertion in model container [2022-11-18 19:43:14,392 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-18 19:43:14,392 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 07:43:14" (3/3) ... [2022-11-18 19:43:14,393 INFO L332 chiAutomizerObserver]: Analyzing ICFG ll_append-alloca-2.i [2022-11-18 19:43:14,450 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2022-11-18 19:43:14,450 INFO L304 stractBuchiCegarLoop]: Hoare is false [2022-11-18 19:43:14,451 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-11-18 19:43:14,451 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-11-18 19:43:14,451 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-11-18 19:43:14,451 INFO L308 stractBuchiCegarLoop]: Difference is false [2022-11-18 19:43:14,451 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-11-18 19:43:14,452 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2022-11-18 19:43:14,456 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 27 states, 20 states have (on average 1.3) internal successors, (26), 20 states have internal predecessors, (26), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-11-18 19:43:14,481 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 8 [2022-11-18 19:43:14,482 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-18 19:43:14,482 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-18 19:43:14,489 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2022-11-18 19:43:14,489 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2022-11-18 19:43:14,490 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2022-11-18 19:43:14,490 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 27 states, 20 states have (on average 1.3) internal successors, (26), 20 states have internal predecessors, (26), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-11-18 19:43:14,493 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 8 [2022-11-18 19:43:14,493 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-18 19:43:14,493 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-18 19:43:14,494 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2022-11-18 19:43:14,494 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2022-11-18 19:43:14,502 INFO L748 eck$LassoCheckResult]: Stem: 16#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 7#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet8#1, main_#t~ret9#1.base, main_#t~ret9#1.offset, main_#t~ret10#1.base, main_#t~ret10#1.offset, main_#t~ret11#1, main_~n~0#1, main_~x~0#1.base, main_~x~0#1.offset, main_~y~0#1.base, main_~y~0#1.offset, main_~y_length~0#1;main_~n~0#1 := main_#t~nondet8#1;havoc main_#t~nondet8#1; 14#L574true assume !(main_~n~0#1 < 1); 26#L577true call main_#t~ret9#1.base, main_#t~ret9#1.offset := new_ll(main_~n~0#1);< 13#new_llENTRYtrue [2022-11-18 19:43:14,502 INFO L750 eck$LassoCheckResult]: Loop: 13#new_llENTRYtrue ~n := #in~n; 20#L548true assume !(0 == ~n);call #t~malloc2.base, #t~malloc2.offset := #Ultimate.allocOnHeap(12);~head~0.base, ~head~0.offset := #t~malloc2.base, #t~malloc2.offset;havoc #t~malloc2.base, #t~malloc2.offset;call write~int(~n, ~head~0.base, ~head~0.offset, 4); 15#L552true call #t~ret3.base, #t~ret3.offset := new_ll(~n - 1);< 13#new_llENTRYtrue [2022-11-18 19:43:14,509 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:43:14,509 INFO L85 PathProgramCache]: Analyzing trace with hash 1418244, now seen corresponding path program 1 times [2022-11-18 19:43:14,519 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:43:14,519 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [899453705] [2022-11-18 19:43:14,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:43:14,521 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:43:14,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 19:43:14,617 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 19:43:14,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 19:43:14,646 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-18 19:43:14,649 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:43:14,649 INFO L85 PathProgramCache]: Analyzing trace with hash 29967, now seen corresponding path program 1 times [2022-11-18 19:43:14,650 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:43:14,651 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2108034390] [2022-11-18 19:43:14,652 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:43:14,652 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:43:14,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 19:43:14,694 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 19:43:14,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 19:43:14,731 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-18 19:43:14,738 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:43:14,742 INFO L85 PathProgramCache]: Analyzing trace with hash -698765780, now seen corresponding path program 1 times [2022-11-18 19:43:14,742 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:43:14,743 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1110527219] [2022-11-18 19:43:14,743 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:43:14,746 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:43:14,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 19:43:14,790 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 19:43:14,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 19:43:14,812 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-18 19:43:15,775 INFO L210 LassoAnalysis]: Preferences: [2022-11-18 19:43:15,776 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-18 19:43:15,776 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-18 19:43:15,777 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-18 19:43:15,777 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-11-18 19:43:15,778 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 19:43:15,778 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-18 19:43:15,778 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-18 19:43:15,779 INFO L133 ssoRankerPreferences]: Filename of dumped script: ll_append-alloca-2.i_Iteration1_Lasso [2022-11-18 19:43:15,779 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-18 19:43:15,779 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-18 19:43:15,804 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 19:43:15,813 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 19:43:15,816 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 19:43:15,819 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 19:43:15,822 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 19:43:15,825 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 19:43:15,829 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 19:43:15,837 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 19:43:15,840 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 19:43:15,843 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 19:43:15,846 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 19:43:15,849 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 19:43:15,854 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 19:43:15,857 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 19:43:15,860 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 19:43:15,863 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 19:43:15,866 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 19:43:15,868 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 19:43:15,871 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 19:43:15,873 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 19:43:15,877 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 19:43:15,880 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 19:43:15,883 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 19:43:15,885 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 19:43:15,888 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 19:43:15,891 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 19:43:15,894 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 19:43:15,898 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 19:43:15,901 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 19:43:15,960 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 19:43:15,962 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 19:43:15,965 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 19:43:15,968 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 19:43:15,971 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 19:43:15,974 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 19:43:15,978 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 19:43:15,981 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 19:43:15,984 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 19:43:15,991 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 19:43:15,994 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 19:43:15,996 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 19:43:15,998 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 19:43:16,001 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 19:43:16,268 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-18 19:43:16,272 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-11-18 19:43:16,274 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 19:43:16,274 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1530094b-1624-4c96-a381-44cdff0a0e8e/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:43:16,282 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1530094b-1624-4c96-a381-44cdff0a0e8e/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 19:43:16,297 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-18 19:43:16,311 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1530094b-1624-4c96-a381-44cdff0a0e8e/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2022-11-18 19:43:16,313 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-18 19:43:16,313 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-18 19:43:16,313 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-18 19:43:16,314 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-18 19:43:16,314 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-18 19:43:16,319 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-18 19:43:16,320 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-18 19:43:16,330 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-18 19:43:16,340 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1530094b-1624-4c96-a381-44cdff0a0e8e/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2022-11-18 19:43:16,340 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 19:43:16,341 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1530094b-1624-4c96-a381-44cdff0a0e8e/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:43:16,342 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1530094b-1624-4c96-a381-44cdff0a0e8e/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 19:43:16,357 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-18 19:43:16,371 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1530094b-1624-4c96-a381-44cdff0a0e8e/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2022-11-18 19:43:16,372 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-18 19:43:16,372 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-18 19:43:16,372 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-18 19:43:16,372 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-18 19:43:16,373 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-18 19:43:16,374 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-18 19:43:16,374 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-18 19:43:16,383 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-18 19:43:16,392 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1530094b-1624-4c96-a381-44cdff0a0e8e/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2022-11-18 19:43:16,393 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 19:43:16,393 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1530094b-1624-4c96-a381-44cdff0a0e8e/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:43:16,394 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1530094b-1624-4c96-a381-44cdff0a0e8e/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 19:43:16,407 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-18 19:43:16,444 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1530094b-1624-4c96-a381-44cdff0a0e8e/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2022-11-18 19:43:16,445 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-18 19:43:16,445 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-18 19:43:16,445 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-18 19:43:16,445 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-18 19:43:16,446 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-18 19:43:16,447 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-18 19:43:16,447 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-18 19:43:16,461 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-18 19:43:16,470 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1530094b-1624-4c96-a381-44cdff0a0e8e/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2022-11-18 19:43:16,471 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 19:43:16,471 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1530094b-1624-4c96-a381-44cdff0a0e8e/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:43:16,472 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1530094b-1624-4c96-a381-44cdff0a0e8e/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 19:43:16,476 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1530094b-1624-4c96-a381-44cdff0a0e8e/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2022-11-18 19:43:16,483 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-18 19:43:16,497 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-18 19:43:16,497 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-18 19:43:16,497 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-18 19:43:16,497 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-18 19:43:16,498 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-18 19:43:16,499 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-18 19:43:16,499 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-18 19:43:16,513 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-18 19:43:16,522 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1530094b-1624-4c96-a381-44cdff0a0e8e/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2022-11-18 19:43:16,523 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 19:43:16,523 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1530094b-1624-4c96-a381-44cdff0a0e8e/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:43:16,525 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1530094b-1624-4c96-a381-44cdff0a0e8e/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 19:43:16,528 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1530094b-1624-4c96-a381-44cdff0a0e8e/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2022-11-18 19:43:16,530 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-18 19:43:16,542 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-18 19:43:16,542 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-18 19:43:16,542 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-18 19:43:16,542 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-18 19:43:16,542 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-18 19:43:16,543 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-18 19:43:16,543 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-18 19:43:16,550 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-18 19:43:16,553 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1530094b-1624-4c96-a381-44cdff0a0e8e/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2022-11-18 19:43:16,553 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 19:43:16,554 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1530094b-1624-4c96-a381-44cdff0a0e8e/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:43:16,558 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1530094b-1624-4c96-a381-44cdff0a0e8e/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 19:43:16,559 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1530094b-1624-4c96-a381-44cdff0a0e8e/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2022-11-18 19:43:16,560 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-18 19:43:16,571 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-18 19:43:16,571 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-18 19:43:16,571 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-18 19:43:16,571 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-18 19:43:16,571 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-18 19:43:16,572 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-18 19:43:16,572 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-18 19:43:16,582 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-18 19:43:16,596 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1530094b-1624-4c96-a381-44cdff0a0e8e/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2022-11-18 19:43:16,596 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 19:43:16,597 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1530094b-1624-4c96-a381-44cdff0a0e8e/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:43:16,598 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1530094b-1624-4c96-a381-44cdff0a0e8e/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 19:43:16,608 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1530094b-1624-4c96-a381-44cdff0a0e8e/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2022-11-18 19:43:16,608 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-18 19:43:16,619 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-18 19:43:16,619 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-18 19:43:16,619 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-18 19:43:16,620 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-18 19:43:16,620 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-18 19:43:16,620 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-18 19:43:16,621 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-18 19:43:16,631 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-18 19:43:16,645 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1530094b-1624-4c96-a381-44cdff0a0e8e/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2022-11-18 19:43:16,645 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 19:43:16,645 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1530094b-1624-4c96-a381-44cdff0a0e8e/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:43:16,647 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1530094b-1624-4c96-a381-44cdff0a0e8e/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 19:43:16,664 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-18 19:43:16,667 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1530094b-1624-4c96-a381-44cdff0a0e8e/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2022-11-18 19:43:16,675 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-18 19:43:16,675 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-18 19:43:16,676 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-18 19:43:16,676 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-18 19:43:16,676 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-18 19:43:16,677 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-18 19:43:16,677 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-18 19:43:16,687 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-18 19:43:16,702 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1530094b-1624-4c96-a381-44cdff0a0e8e/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2022-11-18 19:43:16,703 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 19:43:16,703 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1530094b-1624-4c96-a381-44cdff0a0e8e/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:43:16,704 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1530094b-1624-4c96-a381-44cdff0a0e8e/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 19:43:16,709 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1530094b-1624-4c96-a381-44cdff0a0e8e/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2022-11-18 19:43:16,711 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-18 19:43:16,725 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-18 19:43:16,725 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-18 19:43:16,726 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-18 19:43:16,726 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-18 19:43:16,726 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-18 19:43:16,727 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-18 19:43:16,727 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-18 19:43:16,747 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-18 19:43:16,749 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1530094b-1624-4c96-a381-44cdff0a0e8e/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2022-11-18 19:43:16,750 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 19:43:16,750 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1530094b-1624-4c96-a381-44cdff0a0e8e/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:43:16,751 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1530094b-1624-4c96-a381-44cdff0a0e8e/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 19:43:16,757 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1530094b-1624-4c96-a381-44cdff0a0e8e/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2022-11-18 19:43:16,758 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-18 19:43:16,771 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-18 19:43:16,772 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-18 19:43:16,772 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-18 19:43:16,772 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-18 19:43:16,772 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-18 19:43:16,773 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-18 19:43:16,773 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-18 19:43:16,778 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-18 19:43:16,780 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1530094b-1624-4c96-a381-44cdff0a0e8e/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2022-11-18 19:43:16,781 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 19:43:16,781 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1530094b-1624-4c96-a381-44cdff0a0e8e/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:43:16,790 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1530094b-1624-4c96-a381-44cdff0a0e8e/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 19:43:16,792 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 [2022-11-18 19:43:16,798 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1530094b-1624-4c96-a381-44cdff0a0e8e/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2022-11-18 19:43:16,803 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-18 19:43:16,803 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-18 19:43:16,804 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-18 19:43:16,804 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-18 19:43:16,804 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-18 19:43:16,805 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-18 19:43:16,805 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-18 19:43:16,812 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-18 19:43:16,815 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1530094b-1624-4c96-a381-44cdff0a0e8e/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2022-11-18 19:43:16,815 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 19:43:16,815 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1530094b-1624-4c96-a381-44cdff0a0e8e/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:43:16,816 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1530094b-1624-4c96-a381-44cdff0a0e8e/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 19:43:16,818 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1530094b-1624-4c96-a381-44cdff0a0e8e/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2022-11-18 19:43:16,822 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-18 19:43:16,833 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-18 19:43:16,833 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-18 19:43:16,833 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-18 19:43:16,833 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-18 19:43:16,836 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-11-18 19:43:16,837 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-11-18 19:43:16,865 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-18 19:43:16,869 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1530094b-1624-4c96-a381-44cdff0a0e8e/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2022-11-18 19:43:16,869 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 19:43:16,870 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1530094b-1624-4c96-a381-44cdff0a0e8e/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:43:16,871 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1530094b-1624-4c96-a381-44cdff0a0e8e/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 19:43:16,883 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-18 19:43:16,896 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1530094b-1624-4c96-a381-44cdff0a0e8e/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2022-11-18 19:43:16,897 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-18 19:43:16,897 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-18 19:43:16,897 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-18 19:43:16,897 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-18 19:43:16,897 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-18 19:43:16,898 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-18 19:43:16,898 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-18 19:43:16,914 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-18 19:43:16,922 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1530094b-1624-4c96-a381-44cdff0a0e8e/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0 [2022-11-18 19:43:16,922 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 19:43:16,922 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1530094b-1624-4c96-a381-44cdff0a0e8e/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:43:16,923 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1530094b-1624-4c96-a381-44cdff0a0e8e/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 19:43:16,935 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-18 19:43:16,951 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1530094b-1624-4c96-a381-44cdff0a0e8e/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2022-11-18 19:43:16,952 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-18 19:43:16,952 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-18 19:43:16,952 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-18 19:43:16,952 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-18 19:43:16,952 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-18 19:43:16,953 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-18 19:43:16,953 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-18 19:43:16,976 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-18 19:43:16,979 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1530094b-1624-4c96-a381-44cdff0a0e8e/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Forceful destruction successful, exit code 0 [2022-11-18 19:43:16,979 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 19:43:16,979 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1530094b-1624-4c96-a381-44cdff0a0e8e/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:43:16,980 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1530094b-1624-4c96-a381-44cdff0a0e8e/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 19:43:16,982 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1530094b-1624-4c96-a381-44cdff0a0e8e/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2022-11-18 19:43:16,983 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-18 19:43:16,994 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-18 19:43:16,994 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-18 19:43:16,994 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-18 19:43:16,994 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-18 19:43:16,994 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-18 19:43:16,995 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-18 19:43:16,995 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-18 19:43:16,997 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-18 19:43:17,006 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1530094b-1624-4c96-a381-44cdff0a0e8e/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Forceful destruction successful, exit code 0 [2022-11-18 19:43:17,006 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 19:43:17,007 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1530094b-1624-4c96-a381-44cdff0a0e8e/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:43:17,008 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1530094b-1624-4c96-a381-44cdff0a0e8e/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 19:43:17,010 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1530094b-1624-4c96-a381-44cdff0a0e8e/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2022-11-18 19:43:17,011 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-18 19:43:17,022 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-18 19:43:17,022 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-18 19:43:17,022 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-18 19:43:17,022 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-18 19:43:17,022 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-18 19:43:17,023 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-18 19:43:17,023 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-18 19:43:17,045 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-18 19:43:17,050 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1530094b-1624-4c96-a381-44cdff0a0e8e/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Ended with exit code 0 [2022-11-18 19:43:17,051 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 19:43:17,051 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1530094b-1624-4c96-a381-44cdff0a0e8e/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:43:17,052 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1530094b-1624-4c96-a381-44cdff0a0e8e/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 19:43:17,054 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1530094b-1624-4c96-a381-44cdff0a0e8e/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2022-11-18 19:43:17,055 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-18 19:43:17,066 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-18 19:43:17,066 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-18 19:43:17,066 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-18 19:43:17,067 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-18 19:43:17,067 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-18 19:43:17,067 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-18 19:43:17,067 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-18 19:43:17,070 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-18 19:43:17,073 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1530094b-1624-4c96-a381-44cdff0a0e8e/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Forceful destruction successful, exit code 0 [2022-11-18 19:43:17,074 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 19:43:17,074 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1530094b-1624-4c96-a381-44cdff0a0e8e/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:43:17,075 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1530094b-1624-4c96-a381-44cdff0a0e8e/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 19:43:17,077 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1530094b-1624-4c96-a381-44cdff0a0e8e/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2022-11-18 19:43:17,078 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-18 19:43:17,089 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-18 19:43:17,089 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-18 19:43:17,089 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-18 19:43:17,089 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-18 19:43:17,090 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-18 19:43:17,090 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-18 19:43:17,090 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-18 19:43:17,104 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-18 19:43:17,107 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1530094b-1624-4c96-a381-44cdff0a0e8e/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Forceful destruction successful, exit code 0 [2022-11-18 19:43:17,108 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 19:43:17,108 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1530094b-1624-4c96-a381-44cdff0a0e8e/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:43:17,109 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1530094b-1624-4c96-a381-44cdff0a0e8e/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 19:43:17,115 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1530094b-1624-4c96-a381-44cdff0a0e8e/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2022-11-18 19:43:17,117 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-18 19:43:17,129 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-18 19:43:17,129 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-18 19:43:17,129 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-18 19:43:17,129 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-18 19:43:17,129 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-18 19:43:17,130 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-18 19:43:17,130 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-18 19:43:17,157 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-18 19:43:17,162 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1530094b-1624-4c96-a381-44cdff0a0e8e/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Forceful destruction successful, exit code 0 [2022-11-18 19:43:17,162 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 19:43:17,163 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1530094b-1624-4c96-a381-44cdff0a0e8e/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:43:17,164 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1530094b-1624-4c96-a381-44cdff0a0e8e/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 19:43:17,180 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-18 19:43:17,194 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1530094b-1624-4c96-a381-44cdff0a0e8e/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2022-11-18 19:43:17,195 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-18 19:43:17,195 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-18 19:43:17,195 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-18 19:43:17,195 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-18 19:43:17,195 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-18 19:43:17,196 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-18 19:43:17,196 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-18 19:43:17,213 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-18 19:43:17,223 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1530094b-1624-4c96-a381-44cdff0a0e8e/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Forceful destruction successful, exit code 0 [2022-11-18 19:43:17,224 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 19:43:17,224 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1530094b-1624-4c96-a381-44cdff0a0e8e/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:43:17,225 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1530094b-1624-4c96-a381-44cdff0a0e8e/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 19:43:17,234 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-18 19:43:17,249 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1530094b-1624-4c96-a381-44cdff0a0e8e/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2022-11-18 19:43:17,249 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-18 19:43:17,250 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-18 19:43:17,250 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-18 19:43:17,250 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-18 19:43:17,250 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-18 19:43:17,251 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-18 19:43:17,251 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-18 19:43:17,277 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-18 19:43:17,286 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1530094b-1624-4c96-a381-44cdff0a0e8e/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Forceful destruction successful, exit code 0 [2022-11-18 19:43:17,286 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 19:43:17,286 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1530094b-1624-4c96-a381-44cdff0a0e8e/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:43:17,287 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1530094b-1624-4c96-a381-44cdff0a0e8e/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 19:43:17,292 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-18 19:43:17,304 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-18 19:43:17,305 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-18 19:43:17,305 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-18 19:43:17,305 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-18 19:43:17,305 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-18 19:43:17,306 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1530094b-1624-4c96-a381-44cdff0a0e8e/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2022-11-18 19:43:17,306 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-18 19:43:17,306 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-18 19:43:17,309 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-18 19:43:17,318 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1530094b-1624-4c96-a381-44cdff0a0e8e/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Forceful destruction successful, exit code 0 [2022-11-18 19:43:17,318 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 19:43:17,318 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1530094b-1624-4c96-a381-44cdff0a0e8e/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:43:17,319 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1530094b-1624-4c96-a381-44cdff0a0e8e/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 19:43:17,320 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1530094b-1624-4c96-a381-44cdff0a0e8e/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2022-11-18 19:43:17,322 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-18 19:43:17,332 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-18 19:43:17,332 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-18 19:43:17,333 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-18 19:43:17,333 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-18 19:43:17,333 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-18 19:43:17,333 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-18 19:43:17,333 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-18 19:43:17,335 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-18 19:43:17,337 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1530094b-1624-4c96-a381-44cdff0a0e8e/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Ended with exit code 0 [2022-11-18 19:43:17,338 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 19:43:17,338 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1530094b-1624-4c96-a381-44cdff0a0e8e/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:43:17,339 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1530094b-1624-4c96-a381-44cdff0a0e8e/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 19:43:17,341 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1530094b-1624-4c96-a381-44cdff0a0e8e/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process [2022-11-18 19:43:17,341 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-18 19:43:17,353 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-18 19:43:17,353 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-18 19:43:17,354 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-18 19:43:17,354 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-18 19:43:17,356 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-11-18 19:43:17,356 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-11-18 19:43:17,383 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-18 19:43:17,386 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1530094b-1624-4c96-a381-44cdff0a0e8e/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Ended with exit code 0 [2022-11-18 19:43:17,386 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 19:43:17,387 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1530094b-1624-4c96-a381-44cdff0a0e8e/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:43:17,387 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1530094b-1624-4c96-a381-44cdff0a0e8e/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 19:43:17,388 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1530094b-1624-4c96-a381-44cdff0a0e8e/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Waiting until timeout for monitored process [2022-11-18 19:43:17,390 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-18 19:43:17,400 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-18 19:43:17,400 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-18 19:43:17,401 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-18 19:43:17,401 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-18 19:43:17,401 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-18 19:43:17,401 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-18 19:43:17,402 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-18 19:43:17,404 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-18 19:43:17,407 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1530094b-1624-4c96-a381-44cdff0a0e8e/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Forceful destruction successful, exit code 0 [2022-11-18 19:43:17,408 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 19:43:17,408 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1530094b-1624-4c96-a381-44cdff0a0e8e/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:43:17,409 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1530094b-1624-4c96-a381-44cdff0a0e8e/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 19:43:17,411 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1530094b-1624-4c96-a381-44cdff0a0e8e/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Waiting until timeout for monitored process [2022-11-18 19:43:17,411 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-18 19:43:17,426 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-18 19:43:17,427 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-18 19:43:17,427 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-18 19:43:17,427 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-18 19:43:17,427 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-18 19:43:17,428 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-18 19:43:17,428 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-18 19:43:17,430 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-18 19:43:17,432 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1530094b-1624-4c96-a381-44cdff0a0e8e/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Ended with exit code 0 [2022-11-18 19:43:17,433 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 19:43:17,433 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1530094b-1624-4c96-a381-44cdff0a0e8e/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:43:17,434 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1530094b-1624-4c96-a381-44cdff0a0e8e/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 19:43:17,437 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1530094b-1624-4c96-a381-44cdff0a0e8e/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Waiting until timeout for monitored process [2022-11-18 19:43:17,438 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-18 19:43:17,449 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-18 19:43:17,449 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-18 19:43:17,449 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-18 19:43:17,449 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-18 19:43:17,450 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-18 19:43:17,450 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-18 19:43:17,450 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-18 19:43:17,452 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-18 19:43:17,455 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1530094b-1624-4c96-a381-44cdff0a0e8e/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Ended with exit code 0 [2022-11-18 19:43:17,455 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 19:43:17,455 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1530094b-1624-4c96-a381-44cdff0a0e8e/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:43:17,456 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1530094b-1624-4c96-a381-44cdff0a0e8e/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 19:43:17,457 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1530094b-1624-4c96-a381-44cdff0a0e8e/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Waiting until timeout for monitored process [2022-11-18 19:43:17,460 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-18 19:43:17,472 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-18 19:43:17,472 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-18 19:43:17,472 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-18 19:43:17,473 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-18 19:43:17,473 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-18 19:43:17,474 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-18 19:43:17,474 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-18 19:43:17,501 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-18 19:43:17,510 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1530094b-1624-4c96-a381-44cdff0a0e8e/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Forceful destruction successful, exit code 0 [2022-11-18 19:43:17,511 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 19:43:17,511 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1530094b-1624-4c96-a381-44cdff0a0e8e/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:43:17,512 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1530094b-1624-4c96-a381-44cdff0a0e8e/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 19:43:17,518 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-18 19:43:17,526 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1530094b-1624-4c96-a381-44cdff0a0e8e/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Waiting until timeout for monitored process [2022-11-18 19:43:17,531 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-18 19:43:17,531 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-18 19:43:17,531 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2022-11-18 19:43:17,531 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-18 19:43:17,541 INFO L401 nArgumentSynthesizer]: We have 16 Motzkin's Theorem applications. [2022-11-18 19:43:17,541 INFO L402 nArgumentSynthesizer]: A total of 4 supporting invariants were added. [2022-11-18 19:43:17,574 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-11-18 19:43:17,609 INFO L443 ModelExtractionUtils]: Simplification made 12 calls to the SMT solver. [2022-11-18 19:43:17,609 INFO L444 ModelExtractionUtils]: 1 out of 11 variables were initially zero. Simplification set additionally 7 variables to zero. [2022-11-18 19:43:17,611 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 19:43:17,611 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1530094b-1624-4c96-a381-44cdff0a0e8e/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:43:17,619 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1530094b-1624-4c96-a381-44cdff0a0e8e/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 19:43:17,627 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-11-18 19:43:17,646 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1530094b-1624-4c96-a381-44cdff0a0e8e/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Waiting until timeout for monitored process [2022-11-18 19:43:17,673 INFO L438 nArgumentSynthesizer]: Removed 3 redundant supporting invariants from a total of 4. [2022-11-18 19:43:17,674 INFO L513 LassoAnalysis]: Proved termination. [2022-11-18 19:43:17,674 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(new_ll_#in~n) = 1*new_ll_#in~n Supporting invariants [1*new_ll_#in~n >= 0] [2022-11-18 19:43:17,694 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1530094b-1624-4c96-a381-44cdff0a0e8e/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Ended with exit code 0 [2022-11-18 19:43:17,701 INFO L156 tatePredicateManager]: 0 out of 1 supporting invariants were superfluous and have been removed [2022-11-18 19:43:17,751 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:43:17,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:43:17,790 INFO L263 TraceCheckSpWp]: Trace formula consists of 53 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-18 19:43:17,792 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 19:43:17,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:43:17,868 INFO L263 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 10 conjunts are in the unsatisfiable core [2022-11-18 19:43:17,869 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 19:43:17,924 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:43:17,975 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 3 loop predicates [2022-11-18 19:43:17,977 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 27 states, 20 states have (on average 1.3) internal successors, (26), 20 states have internal predecessors, (26), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Second operand has 5 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 2 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:43:18,155 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1530094b-1624-4c96-a381-44cdff0a0e8e/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Forceful destruction successful, exit code 0 [2022-11-18 19:43:18,171 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 27 states, 20 states have (on average 1.3) internal successors, (26), 20 states have internal predecessors, (26), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4). Second operand has 5 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 2 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 45 states and 54 transitions. Complement of second has 13 states. [2022-11-18 19:43:18,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 2 stem states 2 non-accepting loop states 1 accepting loop states [2022-11-18 19:43:18,182 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 2 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:43:18,182 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 12 transitions. [2022-11-18 19:43:18,184 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 12 transitions. Stem has 4 letters. Loop has 3 letters. [2022-11-18 19:43:18,185 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-18 19:43:18,185 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 12 transitions. Stem has 7 letters. Loop has 3 letters. [2022-11-18 19:43:18,185 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-18 19:43:18,186 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 12 transitions. Stem has 4 letters. Loop has 6 letters. [2022-11-18 19:43:18,186 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-18 19:43:18,187 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 45 states and 54 transitions. [2022-11-18 19:43:18,199 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 5 [2022-11-18 19:43:18,208 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 45 states to 29 states and 37 transitions. [2022-11-18 19:43:18,209 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 22 [2022-11-18 19:43:18,209 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 24 [2022-11-18 19:43:18,210 INFO L73 IsDeterministic]: Start isDeterministic. Operand 29 states and 37 transitions. [2022-11-18 19:43:18,212 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-11-18 19:43:18,212 INFO L218 hiAutomatonCegarLoop]: Abstraction has 29 states and 37 transitions. [2022-11-18 19:43:18,233 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states and 37 transitions. [2022-11-18 19:43:18,246 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 27. [2022-11-18 19:43:18,246 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 20 states have (on average 1.25) internal successors, (25), 21 states have internal predecessors, (25), 4 states have call successors, (4), 3 states have call predecessors, (4), 3 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-11-18 19:43:18,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 33 transitions. [2022-11-18 19:43:18,251 INFO L240 hiAutomatonCegarLoop]: Abstraction has 27 states and 33 transitions. [2022-11-18 19:43:18,251 INFO L428 stractBuchiCegarLoop]: Abstraction has 27 states and 33 transitions. [2022-11-18 19:43:18,251 INFO L335 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2022-11-18 19:43:18,251 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 27 states and 33 transitions. [2022-11-18 19:43:18,252 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 5 [2022-11-18 19:43:18,253 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-18 19:43:18,253 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-18 19:43:18,254 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:43:18,254 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2022-11-18 19:43:18,254 INFO L748 eck$LassoCheckResult]: Stem: 145#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 146#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet8#1, main_#t~ret9#1.base, main_#t~ret9#1.offset, main_#t~ret10#1.base, main_#t~ret10#1.offset, main_#t~ret11#1, main_~n~0#1, main_~x~0#1.base, main_~x~0#1.offset, main_~y~0#1.base, main_~y~0#1.offset, main_~y_length~0#1;main_~n~0#1 := main_#t~nondet8#1;havoc main_#t~nondet8#1; 153#L574 assume !(main_~n~0#1 < 1); 142#L577 call main_#t~ret9#1.base, main_#t~ret9#1.offset := new_ll(main_~n~0#1);< 161#new_llENTRY ~n := #in~n; 162#L548 assume 0 == ~n;#res.base, #res.offset := 0, 0; 164#new_llFINAL assume true; 158#new_llEXIT >#57#return; 156#L577-1 main_~x~0#1.base, main_~x~0#1.offset := main_#t~ret9#1.base, main_#t~ret9#1.offset;havoc main_#t~ret9#1.base, main_#t~ret9#1.offset;assume { :begin_inline_append } true;append_#in~x#1.base, append_#in~x#1.offset, append_#in~y#1.base, append_#in~y#1.offset := main_~x~0#1.base, main_~x~0#1.offset, main_~x~0#1.base, main_~x~0#1.offset;havoc append_#res#1.base, append_#res#1.offset;havoc append_#t~mem7#1.base, append_#t~mem7#1.offset, append_#t~mem6#1.base, append_#t~mem6#1.offset, append_~x#1.base, append_~x#1.offset, append_~y#1.base, append_~y#1.offset, append_~s~0#1.base, append_~s~0#1.offset;append_~x#1.base, append_~x#1.offset := append_#in~x#1.base, append_#in~x#1.offset;append_~y#1.base, append_~y#1.offset := append_#in~y#1.base, append_#in~y#1.offset; 157#L563 assume !(append_~x#1.base == 0 && append_~x#1.offset == 0);append_~s~0#1.base, append_~s~0#1.offset := append_~x#1.base, append_~x#1.offset; 159#L566-3 [2022-11-18 19:43:18,255 INFO L750 eck$LassoCheckResult]: Loop: 159#L566-3 call append_#t~mem6#1.base, append_#t~mem6#1.offset := read~$Pointer$(append_~x#1.base, 4 + append_~x#1.offset, 8); 160#L566-1 assume !!(append_#t~mem6#1.base != 0 || append_#t~mem6#1.offset != 0);havoc append_#t~mem6#1.base, append_#t~mem6#1.offset;call append_#t~mem7#1.base, append_#t~mem7#1.offset := read~$Pointer$(append_~x#1.base, 4 + append_~x#1.offset, 8);append_~x#1.base, append_~x#1.offset := append_#t~mem7#1.base, append_#t~mem7#1.offset;havoc append_#t~mem7#1.base, append_#t~mem7#1.offset; 159#L566-3 [2022-11-18 19:43:18,255 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:43:18,255 INFO L85 PathProgramCache]: Analyzing trace with hash 772923198, now seen corresponding path program 1 times [2022-11-18 19:43:18,256 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:43:18,256 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1838138269] [2022-11-18 19:43:18,256 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:43:18,256 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:43:18,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:43:18,404 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-18 19:43:18,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:43:18,461 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:43:18,461 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:43:18,462 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1838138269] [2022-11-18 19:43:18,462 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1838138269] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:43:18,463 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:43:18,463 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-18 19:43:18,463 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1863654956] [2022-11-18 19:43:18,464 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:43:18,466 INFO L753 eck$LassoCheckResult]: stem already infeasible [2022-11-18 19:43:18,466 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:43:18,466 INFO L85 PathProgramCache]: Analyzing trace with hash 2086, now seen corresponding path program 1 times [2022-11-18 19:43:18,467 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:43:18,467 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1340182361] [2022-11-18 19:43:18,467 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:43:18,467 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:43:18,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 19:43:18,473 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 19:43:18,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 19:43:18,479 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-18 19:43:18,540 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:43:18,542 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 19:43:18,543 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-18 19:43:18,544 INFO L87 Difference]: Start difference. First operand 27 states and 33 transitions. cyclomatic complexity: 9 Second operand has 6 states, 5 states have (on average 1.6) internal successors, (8), 4 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-18 19:43:18,638 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:43:18,638 INFO L93 Difference]: Finished difference Result 31 states and 36 transitions. [2022-11-18 19:43:18,638 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 31 states and 36 transitions. [2022-11-18 19:43:18,640 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 5 [2022-11-18 19:43:18,641 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 31 states to 31 states and 36 transitions. [2022-11-18 19:43:18,641 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 28 [2022-11-18 19:43:18,641 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 28 [2022-11-18 19:43:18,642 INFO L73 IsDeterministic]: Start isDeterministic. Operand 31 states and 36 transitions. [2022-11-18 19:43:18,642 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-11-18 19:43:18,642 INFO L218 hiAutomatonCegarLoop]: Abstraction has 31 states and 36 transitions. [2022-11-18 19:43:18,642 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states and 36 transitions. [2022-11-18 19:43:18,645 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 29. [2022-11-18 19:43:18,645 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29 states, 22 states have (on average 1.1818181818181819) internal successors, (26), 22 states have internal predecessors, (26), 4 states have call successors, (4), 3 states have call predecessors, (4), 3 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2022-11-18 19:43:18,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 34 transitions. [2022-11-18 19:43:18,647 INFO L240 hiAutomatonCegarLoop]: Abstraction has 29 states and 34 transitions. [2022-11-18 19:43:18,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 19:43:18,648 INFO L428 stractBuchiCegarLoop]: Abstraction has 29 states and 34 transitions. [2022-11-18 19:43:18,648 INFO L335 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2022-11-18 19:43:18,648 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 29 states and 34 transitions. [2022-11-18 19:43:18,649 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 5 [2022-11-18 19:43:18,649 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-18 19:43:18,650 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-18 19:43:18,650 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:43:18,650 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2022-11-18 19:43:18,651 INFO L748 eck$LassoCheckResult]: Stem: 218#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 219#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet8#1, main_#t~ret9#1.base, main_#t~ret9#1.offset, main_#t~ret10#1.base, main_#t~ret10#1.offset, main_#t~ret11#1, main_~n~0#1, main_~x~0#1.base, main_~x~0#1.offset, main_~y~0#1.base, main_~y~0#1.offset, main_~y_length~0#1;main_~n~0#1 := main_#t~nondet8#1;havoc main_#t~nondet8#1; 226#L574 assume !(main_~n~0#1 < 1); 216#L577 call main_#t~ret9#1.base, main_#t~ret9#1.offset := new_ll(main_~n~0#1);< 233#new_llENTRY ~n := #in~n; 223#L548 assume 0 == ~n;#res.base, #res.offset := 0, 0; 224#new_llFINAL assume true; 227#new_llEXIT >#57#return; 229#L577-1 main_~x~0#1.base, main_~x~0#1.offset := main_#t~ret9#1.base, main_#t~ret9#1.offset;havoc main_#t~ret9#1.base, main_#t~ret9#1.offset;assume { :begin_inline_append } true;append_#in~x#1.base, append_#in~x#1.offset, append_#in~y#1.base, append_#in~y#1.offset := main_~x~0#1.base, main_~x~0#1.offset, main_~x~0#1.base, main_~x~0#1.offset;havoc append_#res#1.base, append_#res#1.offset;havoc append_#t~mem7#1.base, append_#t~mem7#1.offset, append_#t~mem6#1.base, append_#t~mem6#1.offset, append_~x#1.base, append_~x#1.offset, append_~y#1.base, append_~y#1.offset, append_~s~0#1.base, append_~s~0#1.offset;append_~x#1.base, append_~x#1.offset := append_#in~x#1.base, append_#in~x#1.offset;append_~y#1.base, append_~y#1.offset := append_#in~y#1.base, append_#in~y#1.offset; 230#L563 assume append_~x#1.base == 0 && append_~x#1.offset == 0;append_#res#1.base, append_#res#1.offset := append_~y#1.base, append_~y#1.offset; 212#L569 main_#t~ret10#1.base, main_#t~ret10#1.offset := append_#res#1.base, append_#res#1.offset;assume { :end_inline_append } true;main_~y~0#1.base, main_~y~0#1.offset := main_#t~ret10#1.base, main_#t~ret10#1.offset;havoc main_#t~ret10#1.base, main_#t~ret10#1.offset; 213#L579 call main_#t~ret11#1 := length(main_~y~0#1.base, main_~y~0#1.offset);< 228#lengthENTRY [2022-11-18 19:43:18,651 INFO L750 eck$LassoCheckResult]: Loop: 228#lengthENTRY ~xs.base, ~xs.offset := #in~xs.base, #in~xs.offset; 221#L557 assume !(~xs.base == 0 && ~xs.offset == 0);call #t~mem4.base, #t~mem4.offset := read~$Pointer$(~xs.base, 4 + ~xs.offset, 8); 222#L559 call #t~ret5 := length(#t~mem4.base, #t~mem4.offset);< 228#lengthENTRY [2022-11-18 19:43:18,651 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:43:18,652 INFO L85 PathProgramCache]: Analyzing trace with hash -250149368, now seen corresponding path program 1 times [2022-11-18 19:43:18,652 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:43:18,652 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1587220286] [2022-11-18 19:43:18,652 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:43:18,653 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:43:18,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:43:18,703 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-18 19:43:18,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:43:18,735 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:43:18,736 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:43:18,736 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1587220286] [2022-11-18 19:43:18,736 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1587220286] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:43:18,736 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:43:18,737 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-18 19:43:18,737 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1820484871] [2022-11-18 19:43:18,737 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:43:18,737 INFO L753 eck$LassoCheckResult]: stem already infeasible [2022-11-18 19:43:18,738 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:43:18,738 INFO L85 PathProgramCache]: Analyzing trace with hash 37905, now seen corresponding path program 1 times [2022-11-18 19:43:18,738 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:43:18,738 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1436445386] [2022-11-18 19:43:18,738 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:43:18,739 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:43:18,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 19:43:18,744 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 19:43:18,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 19:43:18,749 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-18 19:43:18,898 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:43:18,898 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 19:43:18,898 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-18 19:43:18,899 INFO L87 Difference]: Start difference. First operand 29 states and 34 transitions. cyclomatic complexity: 8 Second operand has 6 states, 5 states have (on average 1.8) internal successors, (9), 5 states have internal predecessors, (9), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-18 19:43:18,997 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:43:18,998 INFO L93 Difference]: Finished difference Result 27 states and 31 transitions. [2022-11-18 19:43:18,998 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 27 states and 31 transitions. [2022-11-18 19:43:18,999 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 5 [2022-11-18 19:43:19,000 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 27 states to 24 states and 28 transitions. [2022-11-18 19:43:19,000 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 21 [2022-11-18 19:43:19,000 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 21 [2022-11-18 19:43:19,000 INFO L73 IsDeterministic]: Start isDeterministic. Operand 24 states and 28 transitions. [2022-11-18 19:43:19,000 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-11-18 19:43:19,001 INFO L218 hiAutomatonCegarLoop]: Abstraction has 24 states and 28 transitions. [2022-11-18 19:43:19,001 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states and 28 transitions. [2022-11-18 19:43:19,002 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 24. [2022-11-18 19:43:19,003 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24 states, 18 states have (on average 1.1666666666666667) internal successors, (21), 18 states have internal predecessors, (21), 4 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-11-18 19:43:19,003 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 28 transitions. [2022-11-18 19:43:19,003 INFO L240 hiAutomatonCegarLoop]: Abstraction has 24 states and 28 transitions. [2022-11-18 19:43:19,004 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-18 19:43:19,005 INFO L428 stractBuchiCegarLoop]: Abstraction has 24 states and 28 transitions. [2022-11-18 19:43:19,005 INFO L335 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2022-11-18 19:43:19,005 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 24 states and 28 transitions. [2022-11-18 19:43:19,006 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 5 [2022-11-18 19:43:19,006 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-18 19:43:19,006 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-18 19:43:19,006 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:43:19,006 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2022-11-18 19:43:19,007 INFO L748 eck$LassoCheckResult]: Stem: 291#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 292#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet8#1, main_#t~ret9#1.base, main_#t~ret9#1.offset, main_#t~ret10#1.base, main_#t~ret10#1.offset, main_#t~ret11#1, main_~n~0#1, main_~x~0#1.base, main_~x~0#1.offset, main_~y~0#1.base, main_~y~0#1.offset, main_~y_length~0#1;main_~n~0#1 := main_#t~nondet8#1;havoc main_#t~nondet8#1; 299#L574 assume !(main_~n~0#1 < 1); 286#L577 call main_#t~ret9#1.base, main_#t~ret9#1.offset := new_ll(main_~n~0#1);< 306#new_llENTRY ~n := #in~n; 298#L548 assume !(0 == ~n);call #t~malloc2.base, #t~malloc2.offset := #Ultimate.allocOnHeap(12);~head~0.base, ~head~0.offset := #t~malloc2.base, #t~malloc2.offset;havoc #t~malloc2.base, #t~malloc2.offset;call write~int(~n, ~head~0.base, ~head~0.offset, 4); 287#L552 call #t~ret3.base, #t~ret3.offset := new_ll(~n - 1);< 307#new_llENTRY ~n := #in~n; 296#L548 assume 0 == ~n;#res.base, #res.offset := 0, 0; 297#new_llFINAL assume true; 300#new_llEXIT >#53#return; 285#L552-1 call write~$Pointer$(#t~ret3.base, #t~ret3.offset, ~head~0.base, 4 + ~head~0.offset, 8);havoc #t~ret3.base, #t~ret3.offset;#res.base, #res.offset := ~head~0.base, ~head~0.offset; 288#new_llFINAL assume true; 308#new_llEXIT >#57#return; 302#L577-1 main_~x~0#1.base, main_~x~0#1.offset := main_#t~ret9#1.base, main_#t~ret9#1.offset;havoc main_#t~ret9#1.base, main_#t~ret9#1.offset;assume { :begin_inline_append } true;append_#in~x#1.base, append_#in~x#1.offset, append_#in~y#1.base, append_#in~y#1.offset := main_~x~0#1.base, main_~x~0#1.offset, main_~x~0#1.base, main_~x~0#1.offset;havoc append_#res#1.base, append_#res#1.offset;havoc append_#t~mem7#1.base, append_#t~mem7#1.offset, append_#t~mem6#1.base, append_#t~mem6#1.offset, append_~x#1.base, append_~x#1.offset, append_~y#1.base, append_~y#1.offset, append_~s~0#1.base, append_~s~0#1.offset;append_~x#1.base, append_~x#1.offset := append_#in~x#1.base, append_#in~x#1.offset;append_~y#1.base, append_~y#1.offset := append_#in~y#1.base, append_#in~y#1.offset; 303#L563 assume !(append_~x#1.base == 0 && append_~x#1.offset == 0);append_~s~0#1.base, append_~s~0#1.offset := append_~x#1.base, append_~x#1.offset; 304#L566-3 [2022-11-18 19:43:19,007 INFO L750 eck$LassoCheckResult]: Loop: 304#L566-3 call append_#t~mem6#1.base, append_#t~mem6#1.offset := read~$Pointer$(append_~x#1.base, 4 + append_~x#1.offset, 8); 305#L566-1 assume !!(append_#t~mem6#1.base != 0 || append_#t~mem6#1.offset != 0);havoc append_#t~mem6#1.base, append_#t~mem6#1.offset;call append_#t~mem7#1.base, append_#t~mem7#1.offset := read~$Pointer$(append_~x#1.base, 4 + append_~x#1.offset, 8);append_~x#1.base, append_~x#1.offset := append_#t~mem7#1.base, append_#t~mem7#1.offset;havoc append_#t~mem7#1.base, append_#t~mem7#1.offset; 304#L566-3 [2022-11-18 19:43:19,007 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:43:19,007 INFO L85 PathProgramCache]: Analyzing trace with hash 704779872, now seen corresponding path program 1 times [2022-11-18 19:43:19,007 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:43:19,008 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [412950131] [2022-11-18 19:43:19,008 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:43:19,008 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:43:19,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 19:43:19,026 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 19:43:19,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 19:43:19,043 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-18 19:43:19,044 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:43:19,044 INFO L85 PathProgramCache]: Analyzing trace with hash 2086, now seen corresponding path program 2 times [2022-11-18 19:43:19,044 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:43:19,044 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1419254647] [2022-11-18 19:43:19,045 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:43:19,045 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:43:19,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 19:43:19,049 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 19:43:19,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 19:43:19,053 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-18 19:43:19,053 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:43:19,053 INFO L85 PathProgramCache]: Analyzing trace with hash -1311374651, now seen corresponding path program 1 times [2022-11-18 19:43:19,053 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:43:19,054 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [414325692] [2022-11-18 19:43:19,054 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:43:19,054 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:43:19,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:43:19,441 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-18 19:43:19,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:43:19,740 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-18 19:43:19,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:43:19,839 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-18 19:43:19,839 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:43:19,842 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [414325692] [2022-11-18 19:43:19,846 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [414325692] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 19:43:19,846 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [657320831] [2022-11-18 19:43:19,846 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:43:19,847 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 19:43:19,847 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1530094b-1624-4c96-a381-44cdff0a0e8e/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:43:19,848 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1530094b-1624-4c96-a381-44cdff0a0e8e/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 19:43:19,874 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1530094b-1624-4c96-a381-44cdff0a0e8e/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Waiting until timeout for monitored process [2022-11-18 19:43:19,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:43:19,956 INFO L263 TraceCheckSpWp]: Trace formula consists of 146 conjuncts, 48 conjunts are in the unsatisfiable core [2022-11-18 19:43:19,959 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 19:43:19,993 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-18 19:43:20,131 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-18 19:43:20,138 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-18 19:43:20,308 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2022-11-18 19:43:20,316 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2022-11-18 19:43:20,324 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:43:20,324 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 19:43:20,756 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-18 19:43:20,757 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [657320831] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 19:43:20,757 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 19:43:20,757 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 7] total 21 [2022-11-18 19:43:20,757 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1032022502] [2022-11-18 19:43:20,757 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 19:43:20,817 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:43:20,817 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-11-18 19:43:20,818 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=404, Unknown=0, NotChecked=0, Total=462 [2022-11-18 19:43:20,818 INFO L87 Difference]: Start difference. First operand 24 states and 28 transitions. cyclomatic complexity: 7 Second operand has 22 states, 20 states have (on average 1.55) internal successors, (31), 15 states have internal predecessors, (31), 2 states have call successors, (5), 3 states have call predecessors, (5), 6 states have return successors, (6), 6 states have call predecessors, (6), 2 states have call successors, (6) [2022-11-18 19:43:21,342 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:43:21,343 INFO L93 Difference]: Finished difference Result 34 states and 40 transitions. [2022-11-18 19:43:21,343 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 34 states and 40 transitions. [2022-11-18 19:43:21,344 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 5 [2022-11-18 19:43:21,344 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 34 states to 34 states and 40 transitions. [2022-11-18 19:43:21,344 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 31 [2022-11-18 19:43:21,345 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 31 [2022-11-18 19:43:21,345 INFO L73 IsDeterministic]: Start isDeterministic. Operand 34 states and 40 transitions. [2022-11-18 19:43:21,345 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-11-18 19:43:21,345 INFO L218 hiAutomatonCegarLoop]: Abstraction has 34 states and 40 transitions. [2022-11-18 19:43:21,345 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states and 40 transitions. [2022-11-18 19:43:21,347 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 31. [2022-11-18 19:43:21,347 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31 states, 24 states have (on average 1.1666666666666667) internal successors, (28), 23 states have internal predecessors, (28), 4 states have call successors, (4), 3 states have call predecessors, (4), 3 states have return successors, (5), 4 states have call predecessors, (5), 2 states have call successors, (5) [2022-11-18 19:43:21,348 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 37 transitions. [2022-11-18 19:43:21,348 INFO L240 hiAutomatonCegarLoop]: Abstraction has 31 states and 37 transitions. [2022-11-18 19:43:21,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-18 19:43:21,353 INFO L428 stractBuchiCegarLoop]: Abstraction has 31 states and 37 transitions. [2022-11-18 19:43:21,353 INFO L335 stractBuchiCegarLoop]: ======== Iteration 5 ============ [2022-11-18 19:43:21,353 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 31 states and 37 transitions. [2022-11-18 19:43:21,354 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 5 [2022-11-18 19:43:21,354 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-18 19:43:21,355 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-18 19:43:21,356 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:43:21,356 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2022-11-18 19:43:21,357 INFO L748 eck$LassoCheckResult]: Stem: 504#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 505#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet8#1, main_#t~ret9#1.base, main_#t~ret9#1.offset, main_#t~ret10#1.base, main_#t~ret10#1.offset, main_#t~ret11#1, main_~n~0#1, main_~x~0#1.base, main_~x~0#1.offset, main_~y~0#1.base, main_~y~0#1.offset, main_~y_length~0#1;main_~n~0#1 := main_#t~nondet8#1;havoc main_#t~nondet8#1; 512#L574 assume !(main_~n~0#1 < 1); 500#L577 call main_#t~ret9#1.base, main_#t~ret9#1.offset := new_ll(main_~n~0#1);< 521#new_llENTRY ~n := #in~n; 511#L548 assume !(0 == ~n);call #t~malloc2.base, #t~malloc2.offset := #Ultimate.allocOnHeap(12);~head~0.base, ~head~0.offset := #t~malloc2.base, #t~malloc2.offset;havoc #t~malloc2.base, #t~malloc2.offset;call write~int(~n, ~head~0.base, ~head~0.offset, 4); 499#L552 call #t~ret3.base, #t~ret3.offset := new_ll(~n - 1);< 522#new_llENTRY ~n := #in~n; 509#L548 assume 0 == ~n;#res.base, #res.offset := 0, 0; 510#new_llFINAL assume true; 517#new_llEXIT >#53#return; 518#L552-1 call write~$Pointer$(#t~ret3.base, #t~ret3.offset, ~head~0.base, 4 + ~head~0.offset, 8);havoc #t~ret3.base, #t~ret3.offset;#res.base, #res.offset := ~head~0.base, ~head~0.offset; 528#new_llFINAL assume true; 527#new_llEXIT >#57#return; 515#L577-1 main_~x~0#1.base, main_~x~0#1.offset := main_#t~ret9#1.base, main_#t~ret9#1.offset;havoc main_#t~ret9#1.base, main_#t~ret9#1.offset;assume { :begin_inline_append } true;append_#in~x#1.base, append_#in~x#1.offset, append_#in~y#1.base, append_#in~y#1.offset := main_~x~0#1.base, main_~x~0#1.offset, main_~x~0#1.base, main_~x~0#1.offset;havoc append_#res#1.base, append_#res#1.offset;havoc append_#t~mem7#1.base, append_#t~mem7#1.offset, append_#t~mem6#1.base, append_#t~mem6#1.offset, append_~x#1.base, append_~x#1.offset, append_~y#1.base, append_~y#1.offset, append_~s~0#1.base, append_~s~0#1.offset;append_~x#1.base, append_~x#1.offset := append_#in~x#1.base, append_#in~x#1.offset;append_~y#1.base, append_~y#1.offset := append_#in~y#1.base, append_#in~y#1.offset; 516#L563 assume append_~x#1.base == 0 && append_~x#1.offset == 0;append_#res#1.base, append_#res#1.offset := append_~y#1.base, append_~y#1.offset; 502#L569 main_#t~ret10#1.base, main_#t~ret10#1.offset := append_#res#1.base, append_#res#1.offset;assume { :end_inline_append } true;main_~y~0#1.base, main_~y~0#1.offset := main_#t~ret10#1.base, main_#t~ret10#1.offset;havoc main_#t~ret10#1.base, main_#t~ret10#1.offset; 503#L579 call main_#t~ret11#1 := length(main_~y~0#1.base, main_~y~0#1.offset);< 514#lengthENTRY [2022-11-18 19:43:21,357 INFO L750 eck$LassoCheckResult]: Loop: 514#lengthENTRY ~xs.base, ~xs.offset := #in~xs.base, #in~xs.offset; 507#L557 assume !(~xs.base == 0 && ~xs.offset == 0);call #t~mem4.base, #t~mem4.offset := read~$Pointer$(~xs.base, 4 + ~xs.offset, 8); 508#L559 call #t~ret5 := length(#t~mem4.base, #t~mem4.offset);< 514#lengthENTRY [2022-11-18 19:43:21,357 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:43:21,358 INFO L85 PathProgramCache]: Analyzing trace with hash -1311376214, now seen corresponding path program 1 times [2022-11-18 19:43:21,358 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:43:21,358 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1890331232] [2022-11-18 19:43:21,358 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:43:21,358 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:43:21,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:43:21,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-18 19:43:21,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:43:21,482 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-18 19:43:21,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:43:21,487 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-18 19:43:21,488 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:43:21,488 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1890331232] [2022-11-18 19:43:21,488 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1890331232] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:43:21,488 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:43:21,488 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-18 19:43:21,488 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1329024755] [2022-11-18 19:43:21,489 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:43:21,489 INFO L753 eck$LassoCheckResult]: stem already infeasible [2022-11-18 19:43:21,489 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:43:21,489 INFO L85 PathProgramCache]: Analyzing trace with hash 37905, now seen corresponding path program 2 times [2022-11-18 19:43:21,490 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:43:21,490 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1393640375] [2022-11-18 19:43:21,490 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:43:21,490 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:43:21,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 19:43:21,494 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 19:43:21,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 19:43:21,498 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-18 19:43:21,641 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:43:21,642 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-18 19:43:21,642 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-18 19:43:21,642 INFO L87 Difference]: Start difference. First operand 31 states and 37 transitions. cyclomatic complexity: 9 Second operand has 7 states, 7 states have (on average 1.7142857142857142) internal successors, (12), 5 states have internal predecessors, (12), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-18 19:43:21,718 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:43:21,719 INFO L93 Difference]: Finished difference Result 36 states and 41 transitions. [2022-11-18 19:43:21,719 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 36 states and 41 transitions. [2022-11-18 19:43:21,722 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 5 [2022-11-18 19:43:21,724 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 36 states to 36 states and 41 transitions. [2022-11-18 19:43:21,725 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 33 [2022-11-18 19:43:21,727 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 33 [2022-11-18 19:43:21,727 INFO L73 IsDeterministic]: Start isDeterministic. Operand 36 states and 41 transitions. [2022-11-18 19:43:21,727 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-11-18 19:43:21,728 INFO L218 hiAutomatonCegarLoop]: Abstraction has 36 states and 41 transitions. [2022-11-18 19:43:21,728 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states and 41 transitions. [2022-11-18 19:43:21,734 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 31. [2022-11-18 19:43:21,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31 states, 24 states have (on average 1.0833333333333333) internal successors, (26), 23 states have internal predecessors, (26), 4 states have call successors, (4), 3 states have call predecessors, (4), 3 states have return successors, (5), 4 states have call predecessors, (5), 2 states have call successors, (5) [2022-11-18 19:43:21,737 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 35 transitions. [2022-11-18 19:43:21,738 INFO L240 hiAutomatonCegarLoop]: Abstraction has 31 states and 35 transitions. [2022-11-18 19:43:21,739 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-18 19:43:21,740 INFO L428 stractBuchiCegarLoop]: Abstraction has 31 states and 35 transitions. [2022-11-18 19:43:21,742 INFO L335 stractBuchiCegarLoop]: ======== Iteration 6 ============ [2022-11-18 19:43:21,742 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 31 states and 35 transitions. [2022-11-18 19:43:21,743 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 5 [2022-11-18 19:43:21,745 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-18 19:43:21,745 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-18 19:43:21,745 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:43:21,746 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2022-11-18 19:43:21,747 INFO L748 eck$LassoCheckResult]: Stem: 598#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 599#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet8#1, main_#t~ret9#1.base, main_#t~ret9#1.offset, main_#t~ret10#1.base, main_#t~ret10#1.offset, main_#t~ret11#1, main_~n~0#1, main_~x~0#1.base, main_~x~0#1.offset, main_~y~0#1.base, main_~y~0#1.offset, main_~y_length~0#1;main_~n~0#1 := main_#t~nondet8#1;havoc main_#t~nondet8#1; 606#L574 assume !(main_~n~0#1 < 1); 593#L577 call main_#t~ret9#1.base, main_#t~ret9#1.offset := new_ll(main_~n~0#1);< 616#new_llENTRY ~n := #in~n; 605#L548 assume !(0 == ~n);call #t~malloc2.base, #t~malloc2.offset := #Ultimate.allocOnHeap(12);~head~0.base, ~head~0.offset := #t~malloc2.base, #t~malloc2.offset;havoc #t~malloc2.base, #t~malloc2.offset;call write~int(~n, ~head~0.base, ~head~0.offset, 4); 594#L552 call #t~ret3.base, #t~ret3.offset := new_ll(~n - 1);< 617#new_llENTRY ~n := #in~n; 603#L548 assume 0 == ~n;#res.base, #res.offset := 0, 0; 604#new_llFINAL assume true; 611#new_llEXIT >#53#return; 612#L552-1 call write~$Pointer$(#t~ret3.base, #t~ret3.offset, ~head~0.base, 4 + ~head~0.offset, 8);havoc #t~ret3.base, #t~ret3.offset;#res.base, #res.offset := ~head~0.base, ~head~0.offset; 622#new_llFINAL assume true; 619#new_llEXIT >#57#return; 609#L577-1 main_~x~0#1.base, main_~x~0#1.offset := main_#t~ret9#1.base, main_#t~ret9#1.offset;havoc main_#t~ret9#1.base, main_#t~ret9#1.offset;assume { :begin_inline_append } true;append_#in~x#1.base, append_#in~x#1.offset, append_#in~y#1.base, append_#in~y#1.offset := main_~x~0#1.base, main_~x~0#1.offset, main_~x~0#1.base, main_~x~0#1.offset;havoc append_#res#1.base, append_#res#1.offset;havoc append_#t~mem7#1.base, append_#t~mem7#1.offset, append_#t~mem6#1.base, append_#t~mem6#1.offset, append_~x#1.base, append_~x#1.offset, append_~y#1.base, append_~y#1.offset, append_~s~0#1.base, append_~s~0#1.offset;append_~x#1.base, append_~x#1.offset := append_#in~x#1.base, append_#in~x#1.offset;append_~y#1.base, append_~y#1.offset := append_#in~y#1.base, append_#in~y#1.offset; 610#L563 assume !(append_~x#1.base == 0 && append_~x#1.offset == 0);append_~s~0#1.base, append_~s~0#1.offset := append_~x#1.base, append_~x#1.offset; 620#L566-3 call append_#t~mem6#1.base, append_#t~mem6#1.offset := read~$Pointer$(append_~x#1.base, 4 + append_~x#1.offset, 8); 615#L566-1 assume !(append_#t~mem6#1.base != 0 || append_#t~mem6#1.offset != 0);havoc append_#t~mem6#1.base, append_#t~mem6#1.offset; 600#L566-4 call write~$Pointer$(append_~y#1.base, append_~y#1.offset, append_~x#1.base, 4 + append_~x#1.offset, 8);append_#res#1.base, append_#res#1.offset := append_~s~0#1.base, append_~s~0#1.offset; 596#L569 main_#t~ret10#1.base, main_#t~ret10#1.offset := append_#res#1.base, append_#res#1.offset;assume { :end_inline_append } true;main_~y~0#1.base, main_~y~0#1.offset := main_#t~ret10#1.base, main_#t~ret10#1.offset;havoc main_#t~ret10#1.base, main_#t~ret10#1.offset; 597#L579 call main_#t~ret11#1 := length(main_~y~0#1.base, main_~y~0#1.offset);< 607#lengthENTRY [2022-11-18 19:43:21,747 INFO L750 eck$LassoCheckResult]: Loop: 607#lengthENTRY ~xs.base, ~xs.offset := #in~xs.base, #in~xs.offset; 601#L557 assume !(~xs.base == 0 && ~xs.offset == 0);call #t~mem4.base, #t~mem4.offset := read~$Pointer$(~xs.base, 4 + ~xs.offset, 8); 602#L559 call #t~ret5 := length(#t~mem4.base, #t~mem4.offset);< 607#lengthENTRY [2022-11-18 19:43:21,747 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:43:21,748 INFO L85 PathProgramCache]: Analyzing trace with hash -139719339, now seen corresponding path program 1 times [2022-11-18 19:43:21,748 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:43:21,748 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [487122179] [2022-11-18 19:43:21,749 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:43:21,749 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:43:21,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 19:43:21,785 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 19:43:21,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 19:43:21,822 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-18 19:43:21,826 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:43:21,826 INFO L85 PathProgramCache]: Analyzing trace with hash 37905, now seen corresponding path program 3 times [2022-11-18 19:43:21,826 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:43:21,826 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [97484035] [2022-11-18 19:43:21,826 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:43:21,827 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:43:21,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 19:43:21,833 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 19:43:21,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 19:43:21,843 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-18 19:43:21,844 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:43:21,844 INFO L85 PathProgramCache]: Analyzing trace with hash -555510211, now seen corresponding path program 1 times [2022-11-18 19:43:21,844 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:43:21,844 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [795534145] [2022-11-18 19:43:21,845 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:43:21,845 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:43:21,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 19:43:21,875 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 19:43:21,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 19:43:21,893 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-18 19:43:24,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 19:43:24,602 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 19:43:24,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 19:43:24,703 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 18.11 07:43:24 BoogieIcfgContainer [2022-11-18 19:43:24,708 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-11-18 19:43:24,708 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-18 19:43:24,709 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-18 19:43:24,709 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-18 19:43:24,710 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 07:43:14" (3/4) ... [2022-11-18 19:43:24,712 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2022-11-18 19:43:24,770 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1530094b-1624-4c96-a381-44cdff0a0e8e/bin/uautomizer-TMbwUNV5ro/witness.graphml [2022-11-18 19:43:24,770 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-18 19:43:24,771 INFO L158 Benchmark]: Toolchain (without parser) took 11498.77ms. Allocated memory was 125.8MB in the beginning and 163.6MB in the end (delta: 37.7MB). Free memory was 90.7MB in the beginning and 63.4MB in the end (delta: 27.3MB). Peak memory consumption was 65.9MB. Max. memory is 16.1GB. [2022-11-18 19:43:24,772 INFO L158 Benchmark]: CDTParser took 0.35ms. Allocated memory is still 92.3MB. Free memory was 63.7MB in the beginning and 63.7MB in the end (delta: 28.7kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-18 19:43:24,772 INFO L158 Benchmark]: CACSL2BoogieTranslator took 536.85ms. Allocated memory is still 125.8MB. Free memory was 90.7MB in the beginning and 96.0MB in the end (delta: -5.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-11-18 19:43:24,773 INFO L158 Benchmark]: Boogie Procedure Inliner took 40.55ms. Allocated memory is still 125.8MB. Free memory was 96.0MB in the beginning and 93.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-18 19:43:24,773 INFO L158 Benchmark]: Boogie Preprocessor took 29.71ms. Allocated memory is still 125.8MB. Free memory was 93.8MB in the beginning and 92.5MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-18 19:43:24,774 INFO L158 Benchmark]: RCFGBuilder took 497.49ms. Allocated memory is still 125.8MB. Free memory was 92.5MB in the beginning and 79.9MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-11-18 19:43:24,774 INFO L158 Benchmark]: BuchiAutomizer took 10324.99ms. Allocated memory was 125.8MB in the beginning and 163.6MB in the end (delta: 37.7MB). Free memory was 79.2MB in the beginning and 65.5MB in the end (delta: 13.6MB). Peak memory consumption was 54.0MB. Max. memory is 16.1GB. [2022-11-18 19:43:24,774 INFO L158 Benchmark]: Witness Printer took 61.92ms. Allocated memory is still 163.6MB. Free memory was 65.5MB in the beginning and 63.4MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-18 19:43:24,777 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.35ms. Allocated memory is still 92.3MB. Free memory was 63.7MB in the beginning and 63.7MB in the end (delta: 28.7kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 536.85ms. Allocated memory is still 125.8MB. Free memory was 90.7MB in the beginning and 96.0MB in the end (delta: -5.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 40.55ms. Allocated memory is still 125.8MB. Free memory was 96.0MB in the beginning and 93.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 29.71ms. Allocated memory is still 125.8MB. Free memory was 93.8MB in the beginning and 92.5MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 497.49ms. Allocated memory is still 125.8MB. Free memory was 92.5MB in the beginning and 79.9MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * BuchiAutomizer took 10324.99ms. Allocated memory was 125.8MB in the beginning and 163.6MB in the end (delta: 37.7MB). Free memory was 79.2MB in the beginning and 65.5MB in the end (delta: 13.6MB). Peak memory consumption was 54.0MB. Max. memory is 16.1GB. * Witness Printer took 61.92ms. Allocated memory is still 163.6MB. Free memory was 65.5MB in the beginning and 63.4MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 5 terminating modules (4 trivial, 1 deterministic, 0 nondeterministic) and one nonterminating remainder module.One deterministic module has affine ranking function \old(n) and consists of 5 locations. 4 modules have a trivial ranking function, the largest among these consists of 22 locations. The remainder module has 31 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 10.2s and 6 iterations. TraceHistogramMax:2. Analysis of lassos took 8.7s. Construction of modules took 0.4s. Büchi inclusion checks took 0.8s. Highest rank in rank-based complementation 3. Minimization of det autom 0. Minimization of nondet autom 5. Automata minimization 0.0s AutomataMinimizationTime, 5 MinimizatonAttempts, 12 StatesRemovedByMinimization, 4 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had -1 states and ocurred in iteration -1. Nontrivial modules had stage [1, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 75 SdHoareTripleChecker+Valid, 0.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 72 mSDsluCounter, 350 SdHoareTripleChecker+Invalid, 0.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 280 mSDsCounter, 21 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 448 IncrementalHoareTripleChecker+Invalid, 469 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 21 mSolverCounterUnsat, 70 mSDtfsCounter, 448 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont1 unkn0 SFLI0 SFLT0 conc1 concLT0 SILN0 SILU3 SILI0 SILT0 lasso1 LassoPreprocessingBenchmarks: Lassos: inital143 mio100 ax100 hnf100 lsp95 ukn30 mio100 lsp40 div100 bol100 ite100 ukn100 eq217 hnf86 smp100 dnf121 smp100 tf100 neg92 sie111 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: sat Degree: 0 Time: 162ms VariablesStem: 1 VariablesLoop: 2 DisjunctsStem: 1 DisjunctsLoop: 2 SupportingInvariants: 4 MotzkinApplications: 16 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - LassoShapedNonTerminationArgument [Line: 555]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite program execution. Stem: [L573] int n = __VERIFIER_nondet_int(); [L574] COND FALSE !(n < 1) VAL [n=1] [L577] CALL, EXPR new_ll(n) VAL [\old(n)=1] [L548] COND FALSE !(n == 0) [L550] node_t* head = malloc(sizeof(node_t)); [L551] head->val = n VAL [\old(n)=1, head={-1:0}, n=1] [L552] CALL, EXPR new_ll(n-1) VAL [\old(n)=0] [L548] COND TRUE n == 0 [L549] return ((void *)0); VAL [\old(n)=0, \result={0:0}, n=0] [L552] RET, EXPR new_ll(n-1) VAL [\old(n)=1, head={-1:0}, n=1, new_ll(n-1)={0:0}] [L552] head->next = new_ll(n-1) [L553] return head; VAL [\old(n)=1, \result={-1:0}, head={-1:0}, n=1] [L577] RET, EXPR new_ll(n) VAL [n=1, new_ll(n)={-1:0}] [L577] node_t* x = new_ll(n); [L578] CALL, EXPR append(x, x) [L563] COND FALSE !(x == ((void *)0)) [L565] node_t* s = x; VAL [s={-1:0}, x={-1:0}, x={-1:0}, y={-1:0}, y={-1:0}] [L566] EXPR x->next VAL [s={-1:0}, x={-1:0}, x={-1:0}, x->next={0:0}, y={-1:0}, y={-1:0}] [L566] COND FALSE !(x->next != ((void *)0)) [L568] x->next = y [L569] return s; VAL [\result={-1:0}, s={-1:0}, x={-1:0}, x={-1:0}, y={-1:0}, y={-1:0}] [L578] RET, EXPR append(x, x) [L578] node_t* y = append(x, x); [L579] CALL length(y) VAL [xs={-1:0}] Loop: [L557] COND FALSE !(xs == ((void *)0)) [L559] EXPR xs->next [L559] CALL length(xs->next) End of lasso representation. - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 555]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L573] int n = __VERIFIER_nondet_int(); [L574] COND FALSE !(n < 1) VAL [n=1] [L577] CALL, EXPR new_ll(n) VAL [\old(n)=1] [L548] COND FALSE !(n == 0) [L550] node_t* head = malloc(sizeof(node_t)); [L551] head->val = n VAL [\old(n)=1, head={-1:0}, n=1] [L552] CALL, EXPR new_ll(n-1) VAL [\old(n)=0] [L548] COND TRUE n == 0 [L549] return ((void *)0); VAL [\old(n)=0, \result={0:0}, n=0] [L552] RET, EXPR new_ll(n-1) VAL [\old(n)=1, head={-1:0}, n=1, new_ll(n-1)={0:0}] [L552] head->next = new_ll(n-1) [L553] return head; VAL [\old(n)=1, \result={-1:0}, head={-1:0}, n=1] [L577] RET, EXPR new_ll(n) VAL [n=1, new_ll(n)={-1:0}] [L577] node_t* x = new_ll(n); [L578] CALL, EXPR append(x, x) [L563] COND FALSE !(x == ((void *)0)) [L565] node_t* s = x; VAL [s={-1:0}, x={-1:0}, x={-1:0}, y={-1:0}, y={-1:0}] [L566] EXPR x->next VAL [s={-1:0}, x={-1:0}, x={-1:0}, x->next={0:0}, y={-1:0}, y={-1:0}] [L566] COND FALSE !(x->next != ((void *)0)) [L568] x->next = y [L569] return s; VAL [\result={-1:0}, s={-1:0}, x={-1:0}, x={-1:0}, y={-1:0}, y={-1:0}] [L578] RET, EXPR append(x, x) [L578] node_t* y = append(x, x); [L579] CALL length(y) VAL [xs={-1:0}] Loop: [L557] COND FALSE !(xs == ((void *)0)) [L559] EXPR xs->next [L559] CALL length(xs->next) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2022-11-18 19:43:24,838 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1530094b-1624-4c96-a381-44cdff0a0e8e/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Forceful destruction successful, exit code 0 [2022-11-18 19:43:25,046 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1530094b-1624-4c96-a381-44cdff0a0e8e/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM)