./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-memory-linkedlists/ll_append_rec-alloca-2.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 4e77c044 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60dfcd55-bdb7-410e-8c25-a36c0e60394f/bin/uautomizer-WNIpwEf4Nt/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60dfcd55-bdb7-410e-8c25-a36c0e60394f/bin/uautomizer-WNIpwEf4Nt/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60dfcd55-bdb7-410e-8c25-a36c0e60394f/bin/uautomizer-WNIpwEf4Nt/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60dfcd55-bdb7-410e-8c25-a36c0e60394f/bin/uautomizer-WNIpwEf4Nt/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-memory-linkedlists/ll_append_rec-alloca-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60dfcd55-bdb7-410e-8c25-a36c0e60394f/bin/uautomizer-WNIpwEf4Nt/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60dfcd55-bdb7-410e-8c25-a36c0e60394f/bin/uautomizer-WNIpwEf4Nt --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 c2cebfc5c46530d75548d14ecb216f960a012bec .............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Using bit-precise analysis No suitable file found in config dir /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60dfcd55-bdb7-410e-8c25-a36c0e60394f/bin/uautomizer-WNIpwEf4Nt/config using search string *Termination*64bit*_Bitvector*.epf No suitable settings file found using Termination*64bit*_Bitvector ERROR: UNSUPPORTED PROPERTY Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: SMTLIBException: line 60101 column 1030: unknown constant v_DerPreprocessor_1 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-4e77c04 [2021-10-13 00:14:01,715 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-13 00:14:01,717 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-13 00:14:01,750 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-13 00:14:01,750 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-13 00:14:01,752 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-13 00:14:01,753 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-13 00:14:01,756 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-13 00:14:01,758 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-13 00:14:01,759 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-13 00:14:01,760 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-13 00:14:01,761 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-13 00:14:01,762 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-13 00:14:01,763 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-13 00:14:01,767 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-13 00:14:01,771 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-13 00:14:01,774 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-13 00:14:01,778 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-13 00:14:01,781 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-13 00:14:01,783 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-13 00:14:01,785 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-13 00:14:01,786 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-13 00:14:01,788 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-13 00:14:01,789 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-13 00:14:01,792 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-13 00:14:01,793 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-13 00:14:01,793 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-13 00:14:01,794 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-13 00:14:01,795 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-13 00:14:01,796 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-13 00:14:01,797 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-13 00:14:01,798 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-13 00:14:01,799 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-13 00:14:01,800 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-13 00:14:01,801 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-13 00:14:01,802 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-13 00:14:01,803 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-13 00:14:01,803 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-13 00:14:01,804 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-13 00:14:01,805 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-13 00:14:01,806 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-13 00:14:01,807 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60dfcd55-bdb7-410e-8c25-a36c0e60394f/bin/uautomizer-WNIpwEf4Nt/config/svcomp-Termination-64bit-Automizer_Default.epf [2021-10-13 00:14:01,835 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-13 00:14:01,835 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-13 00:14:01,836 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-13 00:14:01,836 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-13 00:14:01,838 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-13 00:14:01,838 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-13 00:14:01,838 INFO L138 SettingsManager]: * Use SBE=true [2021-10-13 00:14:01,839 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-10-13 00:14:01,839 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-10-13 00:14:01,839 INFO L138 SettingsManager]: * Use old map elimination=false [2021-10-13 00:14:01,839 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-10-13 00:14:01,840 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-10-13 00:14:01,840 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-10-13 00:14:01,840 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-13 00:14:01,840 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-13 00:14:01,840 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-13 00:14:01,841 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-13 00:14:01,841 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-10-13 00:14:01,841 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-10-13 00:14:01,841 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-10-13 00:14:01,842 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-13 00:14:01,842 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-10-13 00:14:01,842 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-13 00:14:01,842 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-10-13 00:14:01,843 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-13 00:14:01,843 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-13 00:14:01,843 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-13 00:14:01,843 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-13 00:14:01,844 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-13 00:14:01,845 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-10-13 00:14:01,845 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_60dfcd55-bdb7-410e-8c25-a36c0e60394f/bin/uautomizer-WNIpwEf4Nt/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60dfcd55-bdb7-410e-8c25-a36c0e60394f/bin/uautomizer-WNIpwEf4Nt Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c2cebfc5c46530d75548d14ecb216f960a012bec [2021-10-13 00:14:02,065 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-13 00:14:02,085 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-13 00:14:02,088 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-13 00:14:02,089 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-13 00:14:02,090 INFO L275 PluginConnector]: CDTParser initialized [2021-10-13 00:14:02,091 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60dfcd55-bdb7-410e-8c25-a36c0e60394f/bin/uautomizer-WNIpwEf4Nt/../../sv-benchmarks/c/termination-memory-linkedlists/ll_append_rec-alloca-2.i [2021-10-13 00:14:02,188 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60dfcd55-bdb7-410e-8c25-a36c0e60394f/bin/uautomizer-WNIpwEf4Nt/data/0794fa832/54b762bcafa8415580f1d444322b308a/FLAGc5cab42cc [2021-10-13 00:14:02,707 INFO L306 CDTParser]: Found 1 translation units. [2021-10-13 00:14:02,707 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60dfcd55-bdb7-410e-8c25-a36c0e60394f/sv-benchmarks/c/termination-memory-linkedlists/ll_append_rec-alloca-2.i [2021-10-13 00:14:02,722 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60dfcd55-bdb7-410e-8c25-a36c0e60394f/bin/uautomizer-WNIpwEf4Nt/data/0794fa832/54b762bcafa8415580f1d444322b308a/FLAGc5cab42cc [2021-10-13 00:14:03,019 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60dfcd55-bdb7-410e-8c25-a36c0e60394f/bin/uautomizer-WNIpwEf4Nt/data/0794fa832/54b762bcafa8415580f1d444322b308a [2021-10-13 00:14:03,021 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-13 00:14:03,022 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-13 00:14:03,027 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-13 00:14:03,028 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-13 00:14:03,033 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-13 00:14:03,034 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 12:14:03" (1/1) ... [2021-10-13 00:14:03,035 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@bfd493b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:14:03, skipping insertion in model container [2021-10-13 00:14:03,035 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 12:14:03" (1/1) ... [2021-10-13 00:14:03,041 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-13 00:14:03,074 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-13 00:14:03,390 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 00:14:03,399 INFO L203 MainTranslator]: Completed pre-run [2021-10-13 00:14:03,464 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 00:14:03,500 INFO L208 MainTranslator]: Completed translation [2021-10-13 00:14:03,501 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:14:03 WrapperNode [2021-10-13 00:14:03,501 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-13 00:14:03,502 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-13 00:14:03,502 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-13 00:14:03,502 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-13 00:14:03,514 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:14:03" (1/1) ... [2021-10-13 00:14:03,526 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:14:03" (1/1) ... [2021-10-13 00:14:03,544 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-13 00:14:03,545 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-13 00:14:03,545 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-13 00:14:03,545 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-13 00:14:03,553 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:14:03" (1/1) ... [2021-10-13 00:14:03,553 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:14:03" (1/1) ... [2021-10-13 00:14:03,556 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:14:03" (1/1) ... [2021-10-13 00:14:03,557 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:14:03" (1/1) ... [2021-10-13 00:14:03,564 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:14:03" (1/1) ... [2021-10-13 00:14:03,566 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:14:03" (1/1) ... [2021-10-13 00:14:03,568 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:14:03" (1/1) ... [2021-10-13 00:14:03,570 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-13 00:14:03,571 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-13 00:14:03,571 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-13 00:14:03,571 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-13 00:14:03,572 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:14:03" (1/1) ... [2021-10-13 00:14:03,587 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:14:03,597 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60dfcd55-bdb7-410e-8c25-a36c0e60394f/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:14:03,608 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60dfcd55-bdb7-410e-8c25-a36c0e60394f/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:14:03,642 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60dfcd55-bdb7-410e-8c25-a36c0e60394f/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-10-13 00:14:03,660 INFO L130 BoogieDeclarations]: Found specification of procedure new_ll [2021-10-13 00:14:03,660 INFO L138 BoogieDeclarations]: Found implementation of procedure new_ll [2021-10-13 00:14:03,660 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-10-13 00:14:03,660 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-10-13 00:14:03,660 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-10-13 00:14:03,661 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-10-13 00:14:03,661 INFO L130 BoogieDeclarations]: Found specification of procedure length [2021-10-13 00:14:03,661 INFO L138 BoogieDeclarations]: Found implementation of procedure length [2021-10-13 00:14:03,661 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-13 00:14:03,661 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-13 00:14:03,661 INFO L130 BoogieDeclarations]: Found specification of procedure append [2021-10-13 00:14:03,662 INFO L138 BoogieDeclarations]: Found implementation of procedure append [2021-10-13 00:14:03,889 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-13 00:14:03,889 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2021-10-13 00:14:03,891 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 12:14:03 BoogieIcfgContainer [2021-10-13 00:14:03,891 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-13 00:14:03,892 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-10-13 00:14:03,892 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-10-13 00:14:03,895 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-10-13 00:14:03,896 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-13 00:14:03,896 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 13.10 12:14:03" (1/3) ... [2021-10-13 00:14:03,897 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4caad361 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 13.10 12:14:03, skipping insertion in model container [2021-10-13 00:14:03,898 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-13 00:14:03,898 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:14:03" (2/3) ... [2021-10-13 00:14:03,898 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4caad361 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 13.10 12:14:03, skipping insertion in model container [2021-10-13 00:14:03,898 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-13 00:14:03,898 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 12:14:03" (3/3) ... [2021-10-13 00:14:03,900 INFO L389 chiAutomizerObserver]: Analyzing ICFG ll_append_rec-alloca-2.i [2021-10-13 00:14:03,941 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-10-13 00:14:03,942 INFO L360 BuchiCegarLoop]: Hoare is false [2021-10-13 00:14:03,942 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-10-13 00:14:03,942 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-13 00:14:03,942 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-13 00:14:03,942 INFO L364 BuchiCegarLoop]: Difference is false [2021-10-13 00:14:03,943 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-13 00:14:03,943 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-10-13 00:14:03,957 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 30 states, 20 states have (on average 1.2) internal successors, (24), 20 states have internal predecessors, (24), 6 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2021-10-13 00:14:03,978 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 9 [2021-10-13 00:14:03,979 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-13 00:14:03,979 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-13 00:14:03,985 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2021-10-13 00:14:03,986 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-10-13 00:14:03,986 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-10-13 00:14:03,986 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 30 states, 20 states have (on average 1.2) internal successors, (24), 20 states have internal predecessors, (24), 6 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2021-10-13 00:14:03,990 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 9 [2021-10-13 00:14:03,990 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-13 00:14:03,990 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-13 00:14:03,990 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2021-10-13 00:14:03,991 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-10-13 00:14:03,997 INFO L791 eck$LassoCheckResult]: Stem: 21#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 9#L-1true havoc main_#res;havoc main_#t~nondet8, main_#t~ret9.base, main_#t~ret9.offset, main_#t~ret10.base, main_#t~ret10.offset, main_#t~ret11, main_~n~0, main_~x~0.base, main_~x~0.offset, main_~y~0.base, main_~y~0.offset, main_~y_length~0;main_~n~0 := main_#t~nondet8;havoc main_#t~nondet8; 22#L571true assume !(main_~n~0 < 1); 19#L574true call main_#t~ret9.base, main_#t~ret9.offset := new_ll(main_~n~0);< 17#new_llENTRYtrue [2021-10-13 00:14:03,998 INFO L793 eck$LassoCheckResult]: Loop: 17#new_llENTRYtrue ~n := #in~n; 26#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); 20#L552true call #t~ret3.base, #t~ret3.offset := new_ll(~n - 1);< 17#new_llENTRYtrue [2021-10-13 00:14:04,003 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:14:04,004 INFO L82 PathProgramCache]: Analyzing trace with hash 1418233, now seen corresponding path program 1 times [2021-10-13 00:14:04,013 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:14:04,013 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [374144473] [2021-10-13 00:14:04,013 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:14:04,014 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:14:04,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:14:04,102 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 00:14:04,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:14:04,131 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 00:14:04,134 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:14:04,134 INFO L82 PathProgramCache]: Analyzing trace with hash 29956, now seen corresponding path program 1 times [2021-10-13 00:14:04,135 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:14:04,135 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1557743548] [2021-10-13 00:14:04,135 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:14:04,136 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:14:04,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:14:04,165 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 00:14:04,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:14:04,211 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 00:14:04,213 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:14:04,213 INFO L82 PathProgramCache]: Analyzing trace with hash -699093492, now seen corresponding path program 1 times [2021-10-13 00:14:04,213 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:14:04,213 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [984022032] [2021-10-13 00:14:04,213 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:14:04,214 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:14:04,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:14:04,254 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 00:14:04,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:14:04,283 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 00:14:05,178 INFO L210 LassoAnalysis]: Preferences: [2021-10-13 00:14:05,178 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-13 00:14:05,178 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-13 00:14:05,179 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-13 00:14:05,180 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-13 00:14:05,180 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:14:05,181 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-13 00:14:05,181 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-13 00:14:05,181 INFO L133 ssoRankerPreferences]: Filename of dumped script: ll_append_rec-alloca-2.i_Iteration1_Lasso [2021-10-13 00:14:05,181 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-13 00:14:05,182 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-13 00:14:05,210 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:14:05,215 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:14:05,218 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:14:05,224 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:14:05,227 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:14:05,229 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:14:05,233 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:14:05,270 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:14:05,272 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:14:05,274 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:14:05,277 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:14:05,280 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:14:05,282 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:14:05,285 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:14:05,287 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:14:05,289 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:14:05,291 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:14:05,293 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:14:05,301 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:14:05,303 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:14:05,305 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:14:05,307 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:14:05,309 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:14:05,311 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:14:05,313 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:14:05,315 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:14:05,317 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:14:05,319 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:14:05,531 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-13 00:14:05,536 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-13 00:14:05,538 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:14:05,541 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60dfcd55-bdb7-410e-8c25-a36c0e60394f/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:14:05,547 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60dfcd55-bdb7-410e-8c25-a36c0e60394f/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:14:05,556 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-13 00:14:05,566 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:14:05,566 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:14:05,566 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:14:05,567 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:14:05,567 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:14:05,569 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-13 00:14:05,569 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:14:05,572 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60dfcd55-bdb7-410e-8c25-a36c0e60394f/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2021-10-13 00:14:05,588 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:14:05,622 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60dfcd55-bdb7-410e-8c25-a36c0e60394f/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Ended with exit code 0 [2021-10-13 00:14:05,623 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:14:05,623 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60dfcd55-bdb7-410e-8c25-a36c0e60394f/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:14:05,625 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60dfcd55-bdb7-410e-8c25-a36c0e60394f/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:14:05,628 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-13 00:14:05,640 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:14:05,640 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:14:05,640 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:14:05,640 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:14:05,640 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:14:05,640 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60dfcd55-bdb7-410e-8c25-a36c0e60394f/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2021-10-13 00:14:05,641 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-13 00:14:05,643 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:14:05,658 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:14:05,695 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60dfcd55-bdb7-410e-8c25-a36c0e60394f/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2021-10-13 00:14:05,695 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:14:05,696 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60dfcd55-bdb7-410e-8c25-a36c0e60394f/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:14:05,697 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60dfcd55-bdb7-410e-8c25-a36c0e60394f/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:14:05,702 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-13 00:14:05,704 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60dfcd55-bdb7-410e-8c25-a36c0e60394f/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2021-10-13 00:14:05,710 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:14:05,710 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:14:05,710 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:14:05,710 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:14:05,710 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:14:05,711 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-13 00:14:05,711 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:14:05,719 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:14:05,739 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60dfcd55-bdb7-410e-8c25-a36c0e60394f/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2021-10-13 00:14:05,739 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:14:05,740 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60dfcd55-bdb7-410e-8c25-a36c0e60394f/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:14:05,740 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60dfcd55-bdb7-410e-8c25-a36c0e60394f/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:14:05,741 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60dfcd55-bdb7-410e-8c25-a36c0e60394f/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2021-10-13 00:14:05,742 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-13 00:14:05,749 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:14:05,750 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:14:05,750 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:14:05,750 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:14:05,750 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:14:05,751 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-13 00:14:05,751 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:14:05,769 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:14:05,788 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60dfcd55-bdb7-410e-8c25-a36c0e60394f/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2021-10-13 00:14:05,788 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:14:05,788 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60dfcd55-bdb7-410e-8c25-a36c0e60394f/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:14:05,789 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60dfcd55-bdb7-410e-8c25-a36c0e60394f/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:14:05,790 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60dfcd55-bdb7-410e-8c25-a36c0e60394f/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2021-10-13 00:14:05,791 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-13 00:14:05,798 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:14:05,798 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:14:05,798 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:14:05,798 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:14:05,798 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:14:05,799 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-13 00:14:05,799 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:14:05,813 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:14:05,832 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60dfcd55-bdb7-410e-8c25-a36c0e60394f/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2021-10-13 00:14:05,832 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:14:05,832 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60dfcd55-bdb7-410e-8c25-a36c0e60394f/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:14:05,833 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60dfcd55-bdb7-410e-8c25-a36c0e60394f/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:14:05,834 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60dfcd55-bdb7-410e-8c25-a36c0e60394f/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2021-10-13 00:14:05,837 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-13 00:14:05,844 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:14:05,844 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:14:05,844 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:14:05,844 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:14:05,845 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:14:05,845 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-13 00:14:05,845 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:14:05,862 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:14:05,881 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60dfcd55-bdb7-410e-8c25-a36c0e60394f/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2021-10-13 00:14:05,881 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:14:05,881 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60dfcd55-bdb7-410e-8c25-a36c0e60394f/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:14:05,882 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60dfcd55-bdb7-410e-8c25-a36c0e60394f/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:14:05,885 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60dfcd55-bdb7-410e-8c25-a36c0e60394f/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2021-10-13 00:14:05,885 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-13 00:14:05,893 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:14:05,893 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:14:05,893 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2021-10-13 00:14:05,893 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:14:05,908 INFO L401 nArgumentSynthesizer]: We have 16 Motzkin's Theorem applications. [2021-10-13 00:14:05,908 INFO L402 nArgumentSynthesizer]: A total of 4 supporting invariants were added. [2021-10-13 00:14:05,930 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-13 00:14:05,954 INFO L443 ModelExtractionUtils]: Simplification made 10 calls to the SMT solver. [2021-10-13 00:14:05,954 INFO L444 ModelExtractionUtils]: 3 out of 11 variables were initially zero. Simplification set additionally 5 variables to zero. [2021-10-13 00:14:05,956 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:14:05,956 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60dfcd55-bdb7-410e-8c25-a36c0e60394f/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:14:05,972 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60dfcd55-bdb7-410e-8c25-a36c0e60394f/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:14:06,010 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60dfcd55-bdb7-410e-8c25-a36c0e60394f/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2021-10-13 00:14:06,015 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-13 00:14:06,057 INFO L438 nArgumentSynthesizer]: Removed 3 redundant supporting invariants from a total of 4. [2021-10-13 00:14:06,057 INFO L513 LassoAnalysis]: Proved termination. [2021-10-13 00:14:06,058 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] [2021-10-13 00:14:06,118 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60dfcd55-bdb7-410e-8c25-a36c0e60394f/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2021-10-13 00:14:06,134 INFO L297 tatePredicateManager]: 0 out of 1 supporting invariants were superfluous and have been removed [2021-10-13 00:14:06,159 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:14:06,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:14:06,180 INFO L263 TraceCheckSpWp]: Trace formula consists of 53 conjuncts, 6 conjunts are in the unsatisfiable core [2021-10-13 00:14:06,181 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:14:06,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:14:06,226 INFO L263 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 10 conjunts are in the unsatisfiable core [2021-10-13 00:14:06,227 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:14:06,286 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:14:06,301 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 3 loop predicates [2021-10-13 00:14:06,302 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 30 states, 20 states have (on average 1.2) internal successors, (24), 20 states have internal predecessors, (24), 6 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) 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) [2021-10-13 00:14:06,430 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 30 states, 20 states have (on average 1.2) internal successors, (24), 20 states have internal predecessors, (24), 6 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6). 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 48 states and 56 transitions. Complement of second has 13 states. [2021-10-13 00:14:06,431 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 [2021-10-13 00:14:06,433 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) [2021-10-13 00:14:06,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 12 transitions. [2021-10-13 00:14:06,435 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 12 transitions. Stem has 4 letters. Loop has 3 letters. [2021-10-13 00:14:06,436 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-13 00:14:06,436 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 12 transitions. Stem has 7 letters. Loop has 3 letters. [2021-10-13 00:14:06,436 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-13 00:14:06,436 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 12 transitions. Stem has 4 letters. Loop has 6 letters. [2021-10-13 00:14:06,437 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-13 00:14:06,437 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 48 states and 56 transitions. [2021-10-13 00:14:06,442 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2021-10-13 00:14:06,448 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 48 states to 32 states and 39 transitions. [2021-10-13 00:14:06,449 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 25 [2021-10-13 00:14:06,449 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 27 [2021-10-13 00:14:06,450 INFO L73 IsDeterministic]: Start isDeterministic. Operand 32 states and 39 transitions. [2021-10-13 00:14:06,451 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-13 00:14:06,451 INFO L681 BuchiCegarLoop]: Abstraction has 32 states and 39 transitions. [2021-10-13 00:14:06,463 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states and 39 transitions. [2021-10-13 00:14:06,474 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 30. [2021-10-13 00:14:06,474 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30 states, 20 states have (on average 1.15) internal successors, (23), 21 states have internal predecessors, (23), 6 states have call successors, (6), 4 states have call predecessors, (6), 4 states have return successors, (6), 4 states have call predecessors, (6), 4 states have call successors, (6) [2021-10-13 00:14:06,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 35 transitions. [2021-10-13 00:14:06,476 INFO L704 BuchiCegarLoop]: Abstraction has 30 states and 35 transitions. [2021-10-13 00:14:06,476 INFO L587 BuchiCegarLoop]: Abstraction has 30 states and 35 transitions. [2021-10-13 00:14:06,476 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-10-13 00:14:06,476 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 30 states and 35 transitions. [2021-10-13 00:14:06,478 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2021-10-13 00:14:06,478 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-13 00:14:06,478 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-13 00:14:06,478 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:14:06,479 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-10-13 00:14:06,479 INFO L791 eck$LassoCheckResult]: Stem: 152#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 153#L-1 havoc main_#res;havoc main_#t~nondet8, main_#t~ret9.base, main_#t~ret9.offset, main_#t~ret10.base, main_#t~ret10.offset, main_#t~ret11, main_~n~0, main_~x~0.base, main_~x~0.offset, main_~y~0.base, main_~y~0.offset, main_~y_length~0;main_~n~0 := main_#t~nondet8;havoc main_#t~nondet8; 158#L571 assume !(main_~n~0 < 1); 148#L574 call main_#t~ret9.base, main_#t~ret9.offset := new_ll(main_~n~0);< 171#new_llENTRY ~n := #in~n; 172#L548 assume 0 == ~n;#res.base, #res.offset := 0, 0; 175#new_llFINAL assume true; 170#new_llEXIT >#46#return; 168#L574-1 main_~x~0.base, main_~x~0.offset := main_#t~ret9.base, main_#t~ret9.offset;havoc main_#t~ret9.base, main_#t~ret9.offset; 155#L575 call main_#t~ret10.base, main_#t~ret10.offset := append(main_~x~0.base, main_~x~0.offset, main_~x~0.base, main_~x~0.offset);< 169#appendENTRY [2021-10-13 00:14:06,479 INFO L793 eck$LassoCheckResult]: Loop: 169#appendENTRY ~x.base, ~x.offset := #in~x.base, #in~x.offset;~y.base, ~y.offset := #in~y.base, #in~y.offset; 154#L563 assume !(~x.base == 0 && ~x.offset == 0);call #t~mem6.base, #t~mem6.offset := read~$Pointer$(~x.base, 4 + ~x.offset, 8); 156#L565 call #t~ret7.base, #t~ret7.offset := append(#t~mem6.base, #t~mem6.offset, ~y.base, ~y.offset);< 169#appendENTRY [2021-10-13 00:14:06,480 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:14:06,480 INFO L82 PathProgramCache]: Analyzing trace with hash -399693255, now seen corresponding path program 1 times [2021-10-13 00:14:06,480 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:14:06,480 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [797616627] [2021-10-13 00:14:06,480 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:14:06,480 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:14:06,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:14:06,554 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-10-13 00:14:06,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:14:06,588 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:14:06,589 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:14:06,589 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [797616627] [2021-10-13 00:14:06,589 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [797616627] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 00:14:06,590 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 00:14:06,590 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-10-13 00:14:06,590 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [843785771] [2021-10-13 00:14:06,592 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-10-13 00:14:06,593 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:14:06,593 INFO L82 PathProgramCache]: Analyzing trace with hash 62702, now seen corresponding path program 1 times [2021-10-13 00:14:06,593 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:14:06,593 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [690302224] [2021-10-13 00:14:06,594 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:14:06,594 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:14:06,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:14:06,600 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 00:14:06,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:14:06,608 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 00:14:06,923 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60dfcd55-bdb7-410e-8c25-a36c0e60394f/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2021-10-13 00:14:06,996 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:14:06,998 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-13 00:14:06,999 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-10-13 00:14:07,000 INFO L87 Difference]: Start difference. First operand 30 states and 35 transitions. cyclomatic complexity: 8 Second operand has 6 states, 5 states have (on average 1.4) internal successors, (7), 5 states have internal predecessors, (7), 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) [2021-10-13 00:14:07,138 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:14:07,138 INFO L93 Difference]: Finished difference Result 33 states and 38 transitions. [2021-10-13 00:14:07,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-13 00:14:07,139 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 33 states and 38 transitions. [2021-10-13 00:14:07,147 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2021-10-13 00:14:07,152 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 33 states to 30 states and 35 transitions. [2021-10-13 00:14:07,152 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 27 [2021-10-13 00:14:07,152 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 27 [2021-10-13 00:14:07,152 INFO L73 IsDeterministic]: Start isDeterministic. Operand 30 states and 35 transitions. [2021-10-13 00:14:07,153 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-13 00:14:07,153 INFO L681 BuchiCegarLoop]: Abstraction has 30 states and 35 transitions. [2021-10-13 00:14:07,153 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states and 35 transitions. [2021-10-13 00:14:07,157 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 27. [2021-10-13 00:14:07,157 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 18 states have (on average 1.1111111111111112) internal successors, (20), 18 states have internal predecessors, (20), 6 states have call successors, (6), 4 states have call predecessors, (6), 3 states have return successors, (5), 4 states have call predecessors, (5), 4 states have call successors, (5) [2021-10-13 00:14:07,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 31 transitions. [2021-10-13 00:14:07,160 INFO L704 BuchiCegarLoop]: Abstraction has 27 states and 31 transitions. [2021-10-13 00:14:07,160 INFO L587 BuchiCegarLoop]: Abstraction has 27 states and 31 transitions. [2021-10-13 00:14:07,160 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-10-13 00:14:07,160 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 27 states and 31 transitions. [2021-10-13 00:14:07,162 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2021-10-13 00:14:07,162 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-13 00:14:07,162 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-13 00:14:07,163 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:14:07,163 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-10-13 00:14:07,163 INFO L791 eck$LassoCheckResult]: Stem: 236#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 237#L-1 havoc main_#res;havoc main_#t~nondet8, main_#t~ret9.base, main_#t~ret9.offset, main_#t~ret10.base, main_#t~ret10.offset, main_#t~ret11, main_~n~0, main_~x~0.base, main_~x~0.offset, main_~y~0.base, main_~y~0.offset, main_~y_length~0;main_~n~0 := main_#t~nondet8;havoc main_#t~nondet8; 238#L571 assume !(main_~n~0 < 1); 227#L574 call main_#t~ret9.base, main_#t~ret9.offset := new_ll(main_~n~0);< 250#new_llENTRY ~n := #in~n; 244#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); 228#L552 call #t~ret3.base, #t~ret3.offset := new_ll(~n - 1);< 251#new_llENTRY ~n := #in~n; 242#L548 assume 0 == ~n;#res.base, #res.offset := 0, 0; 243#new_llFINAL assume true; 247#new_llEXIT >#42#return; 226#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; 229#new_llFINAL assume true; 252#new_llEXIT >#46#return; 248#L574-1 main_~x~0.base, main_~x~0.offset := main_#t~ret9.base, main_#t~ret9.offset;havoc main_#t~ret9.base, main_#t~ret9.offset; 233#L575 call main_#t~ret10.base, main_#t~ret10.offset := append(main_~x~0.base, main_~x~0.offset, main_~x~0.base, main_~x~0.offset);< 249#appendENTRY [2021-10-13 00:14:07,163 INFO L793 eck$LassoCheckResult]: Loop: 249#appendENTRY ~x.base, ~x.offset := #in~x.base, #in~x.offset;~y.base, ~y.offset := #in~y.base, #in~y.offset; 232#L563 assume !(~x.base == 0 && ~x.offset == 0);call #t~mem6.base, #t~mem6.offset := read~$Pointer$(~x.base, 4 + ~x.offset, 8); 234#L565 call #t~ret7.base, #t~ret7.offset := append(#t~mem6.base, #t~mem6.offset, ~y.base, ~y.offset);< 249#appendENTRY [2021-10-13 00:14:07,163 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:14:07,164 INFO L82 PathProgramCache]: Analyzing trace with hash 1483962993, now seen corresponding path program 1 times [2021-10-13 00:14:07,164 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:14:07,164 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [665699096] [2021-10-13 00:14:07,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:14:07,165 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:14:07,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:14:07,207 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 00:14:07,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:14:07,235 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 00:14:07,235 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:14:07,235 INFO L82 PathProgramCache]: Analyzing trace with hash 62702, now seen corresponding path program 2 times [2021-10-13 00:14:07,236 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:14:07,236 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [733031938] [2021-10-13 00:14:07,236 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:14:07,236 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:14:07,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:14:07,241 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 00:14:07,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:14:07,248 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 00:14:07,254 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:14:07,254 INFO L82 PathProgramCache]: Analyzing trace with hash 643179646, now seen corresponding path program 1 times [2021-10-13 00:14:07,254 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:14:07,254 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1790549563] [2021-10-13 00:14:07,254 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:14:07,255 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:14:07,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:14:07,295 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 00:14:07,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:14:07,346 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 00:14:09,217 FATAL L? ?]: An unrecoverable error occured during an interaction with an SMT solver: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: line 60101 column 1030: unknown constant v_DerPreprocessor_1 at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser$Action$.CUP$do_action(Parser.java:1458) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser.do_action(Parser.java:658) at com.github.jhoenicke.javacup.runtime.LRParser.parse(LRParser.java:383) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:237) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parseSuccess(Executor.java:256) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Scriptor.assertTerm(Scriptor.java:147) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.arrays.DiffWrapperScript.assertTerm(DiffWrapperScript.java:111) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.assertTerm(WrapperScript.java:158) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.ManagedScript.assertTerm(ManagedScript.java:133) at de.uni_freiburg.informatik.ultimate.lassoranker.nontermination.FixpointCheck.checkForFixpoint(FixpointCheck.java:100) at de.uni_freiburg.informatik.ultimate.lassoranker.nontermination.FixpointCheck.(FixpointCheck.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.LassoCheck.synthesize(LassoCheck.java:560) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.LassoCheck$LassoCheckResult.checkLassoTermination(LassoCheck.java:953) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.LassoCheck$LassoCheckResult.(LassoCheck.java:862) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.LassoCheck.(LassoCheck.java:252) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiCegarLoop.iterate(BuchiCegarLoop.java:457) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver.doTerminationAnalysis(BuchiAutomizerObserver.java:143) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver.finish(BuchiAutomizerObserver.java:398) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-10-13 00:14:09,220 INFO L168 Benchmark]: Toolchain (without parser) took 6196.37 ms. Allocated memory was 109.1 MB in the beginning and 176.2 MB in the end (delta: 67.1 MB). Free memory was 75.7 MB in the beginning and 144.7 MB in the end (delta: -69.0 MB). Peak memory consumption was 60.1 MB. Max. memory is 16.1 GB. [2021-10-13 00:14:09,220 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 109.1 MB. Free memory is still 62.9 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 00:14:09,221 INFO L168 Benchmark]: CACSL2BoogieTranslator took 473.88 ms. Allocated memory is still 109.1 MB. Free memory was 75.4 MB in the beginning and 79.1 MB in the end (delta: -3.7 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2021-10-13 00:14:09,221 INFO L168 Benchmark]: Boogie Procedure Inliner took 42.03 ms. Allocated memory is still 109.1 MB. Free memory was 79.1 MB in the beginning and 77.4 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-13 00:14:09,222 INFO L168 Benchmark]: Boogie Preprocessor took 25.44 ms. Allocated memory is still 109.1 MB. Free memory was 77.4 MB in the beginning and 76.2 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 00:14:09,222 INFO L168 Benchmark]: RCFGBuilder took 320.56 ms. Allocated memory is still 109.1 MB. Free memory was 76.2 MB in the beginning and 65.3 MB in the end (delta: 10.9 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-10-13 00:14:09,223 INFO L168 Benchmark]: BuchiAutomizer took 5326.25 ms. Allocated memory was 109.1 MB in the beginning and 176.2 MB in the end (delta: 67.1 MB). Free memory was 64.8 MB in the beginning and 144.7 MB in the end (delta: -79.8 MB). Peak memory consumption was 52.1 MB. Max. memory is 16.1 GB. [2021-10-13 00:14:09,227 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 109.1 MB. Free memory is still 62.9 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 473.88 ms. Allocated memory is still 109.1 MB. Free memory was 75.4 MB in the beginning and 79.1 MB in the end (delta: -3.7 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 42.03 ms. Allocated memory is still 109.1 MB. Free memory was 79.1 MB in the beginning and 77.4 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 25.44 ms. Allocated memory is still 109.1 MB. Free memory was 77.4 MB in the beginning and 76.2 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 320.56 ms. Allocated memory is still 109.1 MB. Free memory was 76.2 MB in the beginning and 65.3 MB in the end (delta: 10.9 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 5326.25 ms. Allocated memory was 109.1 MB in the beginning and 176.2 MB in the end (delta: 67.1 MB). Free memory was 64.8 MB in the beginning and 144.7 MB in the end (delta: -79.8 MB). Peak memory consumption was 52.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer: - ExceptionOrErrorResult: SMTLIBException: line 60101 column 1030: unknown constant v_DerPreprocessor_1 de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer: SMTLIBException: line 60101 column 1030: unknown constant v_DerPreprocessor_1: de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser$Action$.CUP$do_action(Parser.java:1458) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2021-10-13 00:14:09,254 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60dfcd55-bdb7-410e-8c25-a36c0e60394f/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 1 Received shutdown request...