./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/list-ext-properties/test-0232_1-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version b2eff8ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c60e424-bd7f-42e2-8db5-1551c8be1762/bin/uautomizer-GMMbpWq8iD/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c60e424-bd7f-42e2-8db5-1551c8be1762/bin/uautomizer-GMMbpWq8iD/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c60e424-bd7f-42e2-8db5-1551c8be1762/bin/uautomizer-GMMbpWq8iD/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c60e424-bd7f-42e2-8db5-1551c8be1762/bin/uautomizer-GMMbpWq8iD/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/list-ext-properties/test-0232_1-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c60e424-bd7f-42e2-8db5-1551c8be1762/bin/uautomizer-GMMbpWq8iD/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c60e424-bd7f-42e2-8db5-1551c8be1762/bin/uautomizer-GMMbpWq8iD --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash b36390e4ace21fb538f0c1df6f562bcf2825b5901fb45d9987e6242615034592 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Using bit-precise analysis No suitable file found in config dir /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c60e424-bd7f-42e2-8db5-1551c8be1762/bin/uautomizer-GMMbpWq8iD/config using search string *Termination*32bit*_Bitvector*.epf No suitable settings file found using Termination*32bit*_Bitvector ERROR: UNSUPPORTED PROPERTY Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: AssertionError: MapEliminator tries to combine Int and (Array Int Int) --- Real Ultimate output --- This is Ultimate 0.2.1-dev-b2eff8b [2021-10-28 23:21:39,843 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-28 23:21:39,845 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-28 23:21:39,883 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-28 23:21:39,883 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-28 23:21:39,885 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-28 23:21:39,886 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-28 23:21:39,889 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-28 23:21:39,892 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-28 23:21:39,893 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-28 23:21:39,894 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-28 23:21:39,896 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-28 23:21:39,896 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-28 23:21:39,897 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-28 23:21:39,899 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-28 23:21:39,901 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-28 23:21:39,902 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-28 23:21:39,903 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-28 23:21:39,905 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-28 23:21:39,908 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-28 23:21:39,910 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-28 23:21:39,912 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-28 23:21:39,914 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-28 23:21:39,915 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-28 23:21:39,919 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-28 23:21:39,920 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-28 23:21:39,920 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-28 23:21:39,921 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-28 23:21:39,922 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-28 23:21:39,923 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-28 23:21:39,924 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-28 23:21:39,925 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-28 23:21:39,926 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-28 23:21:39,927 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-28 23:21:39,928 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-28 23:21:39,929 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-28 23:21:39,930 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-28 23:21:39,930 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-28 23:21:39,931 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-28 23:21:39,932 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-28 23:21:39,933 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-28 23:21:39,934 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c60e424-bd7f-42e2-8db5-1551c8be1762/bin/uautomizer-GMMbpWq8iD/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-10-28 23:21:39,985 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-28 23:21:39,986 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-28 23:21:39,986 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-28 23:21:39,986 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-28 23:21:39,988 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-28 23:21:39,988 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-28 23:21:39,989 INFO L138 SettingsManager]: * Use SBE=true [2021-10-28 23:21:39,989 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-10-28 23:21:39,989 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-10-28 23:21:39,990 INFO L138 SettingsManager]: * Use old map elimination=false [2021-10-28 23:21:39,990 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-10-28 23:21:39,990 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-10-28 23:21:39,991 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-10-28 23:21:39,991 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-28 23:21:39,992 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-28 23:21:39,992 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-28 23:21:39,992 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-28 23:21:39,993 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-28 23:21:39,993 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-28 23:21:39,993 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-10-28 23:21:39,994 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-10-28 23:21:39,994 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-10-28 23:21:39,994 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-28 23:21:39,995 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-28 23:21:39,995 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-10-28 23:21:40,002 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-28 23:21:40,003 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-10-28 23:21:40,004 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-28 23:21:40,005 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-28 23:21:40,005 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-28 23:21:40,005 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-28 23:21:40,005 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-28 23:21:40,007 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-10-28 23:21:40,007 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_3c60e424-bd7f-42e2-8db5-1551c8be1762/bin/uautomizer-GMMbpWq8iD/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c60e424-bd7f-42e2-8db5-1551c8be1762/bin/uautomizer-GMMbpWq8iD Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b36390e4ace21fb538f0c1df6f562bcf2825b5901fb45d9987e6242615034592 [2021-10-28 23:21:40,331 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-28 23:21:40,366 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-28 23:21:40,368 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-28 23:21:40,370 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-28 23:21:40,372 INFO L275 PluginConnector]: CDTParser initialized [2021-10-28 23:21:40,377 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c60e424-bd7f-42e2-8db5-1551c8be1762/bin/uautomizer-GMMbpWq8iD/../../sv-benchmarks/c/list-ext-properties/test-0232_1-1.i [2021-10-28 23:21:40,454 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c60e424-bd7f-42e2-8db5-1551c8be1762/bin/uautomizer-GMMbpWq8iD/data/33721512d/662cb1240e7444d69a26c19f18aa1b60/FLAG1a9ee5d0c [2021-10-28 23:21:40,994 INFO L306 CDTParser]: Found 1 translation units. [2021-10-28 23:21:40,994 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c60e424-bd7f-42e2-8db5-1551c8be1762/sv-benchmarks/c/list-ext-properties/test-0232_1-1.i [2021-10-28 23:21:41,018 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c60e424-bd7f-42e2-8db5-1551c8be1762/bin/uautomizer-GMMbpWq8iD/data/33721512d/662cb1240e7444d69a26c19f18aa1b60/FLAG1a9ee5d0c [2021-10-28 23:21:41,267 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c60e424-bd7f-42e2-8db5-1551c8be1762/bin/uautomizer-GMMbpWq8iD/data/33721512d/662cb1240e7444d69a26c19f18aa1b60 [2021-10-28 23:21:41,270 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-28 23:21:41,272 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-28 23:21:41,287 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-28 23:21:41,288 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-28 23:21:41,292 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-28 23:21:41,293 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 11:21:41" (1/1) ... [2021-10-28 23:21:41,294 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3ee6f7f9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:21:41, skipping insertion in model container [2021-10-28 23:21:41,294 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 11:21:41" (1/1) ... [2021-10-28 23:21:41,303 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-28 23:21:41,363 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-28 23:21:41,676 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 23:21:41,687 INFO L203 MainTranslator]: Completed pre-run [2021-10-28 23:21:41,737 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 23:21:41,790 INFO L208 MainTranslator]: Completed translation [2021-10-28 23:21:41,791 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:21:41 WrapperNode [2021-10-28 23:21:41,792 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-28 23:21:41,794 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-28 23:21:41,795 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-28 23:21:41,795 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-28 23:21:41,804 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:21:41" (1/1) ... [2021-10-28 23:21:41,847 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:21:41" (1/1) ... [2021-10-28 23:21:41,888 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-28 23:21:41,889 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-28 23:21:41,889 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-28 23:21:41,889 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-28 23:21:41,898 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:21:41" (1/1) ... [2021-10-28 23:21:41,899 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:21:41" (1/1) ... [2021-10-28 23:21:41,910 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:21:41" (1/1) ... [2021-10-28 23:21:41,910 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:21:41" (1/1) ... [2021-10-28 23:21:41,929 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:21:41" (1/1) ... [2021-10-28 23:21:41,932 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:21:41" (1/1) ... [2021-10-28 23:21:41,934 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:21:41" (1/1) ... [2021-10-28 23:21:41,938 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-28 23:21:41,939 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-28 23:21:41,939 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-28 23:21:41,939 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-28 23:21:41,940 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:21:41" (1/1) ... [2021-10-28 23:21:41,955 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:21:41,973 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c60e424-bd7f-42e2-8db5-1551c8be1762/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:21:41,991 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c60e424-bd7f-42e2-8db5-1551c8be1762/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:21:42,007 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c60e424-bd7f-42e2-8db5-1551c8be1762/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-10-28 23:21:42,056 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-10-28 23:21:42,057 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-10-28 23:21:42,058 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-28 23:21:42,058 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-10-28 23:21:42,058 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-28 23:21:42,058 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-10-28 23:21:42,058 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-28 23:21:42,059 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-28 23:21:42,059 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-28 23:21:42,487 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-28 23:21:42,488 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2021-10-28 23:21:42,490 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 11:21:42 BoogieIcfgContainer [2021-10-28 23:21:42,490 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-28 23:21:42,491 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-10-28 23:21:42,491 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-10-28 23:21:42,495 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-10-28 23:21:42,496 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-28 23:21:42,497 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 28.10 11:21:41" (1/3) ... [2021-10-28 23:21:42,498 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@c0bcfd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.10 11:21:42, skipping insertion in model container [2021-10-28 23:21:42,499 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-28 23:21:42,499 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:21:41" (2/3) ... [2021-10-28 23:21:42,499 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@c0bcfd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.10 11:21:42, skipping insertion in model container [2021-10-28 23:21:42,500 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-28 23:21:42,500 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 11:21:42" (3/3) ... [2021-10-28 23:21:42,501 INFO L389 chiAutomizerObserver]: Analyzing ICFG test-0232_1-1.i [2021-10-28 23:21:42,557 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-10-28 23:21:42,557 INFO L360 BuchiCegarLoop]: Hoare is false [2021-10-28 23:21:42,558 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-10-28 23:21:42,558 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-28 23:21:42,558 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-28 23:21:42,558 INFO L364 BuchiCegarLoop]: Difference is false [2021-10-28 23:21:42,559 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-28 23:21:42,559 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-10-28 23:21:42,577 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 15 states, 14 states have (on average 1.5) internal successors, (21), 14 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:21:42,600 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2021-10-28 23:21:42,600 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 23:21:42,600 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 23:21:42,608 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-10-28 23:21:42,608 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2021-10-28 23:21:42,608 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-10-28 23:21:42,609 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 15 states, 14 states have (on average 1.5) internal successors, (21), 14 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:21:42,611 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2021-10-28 23:21:42,611 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 23:21:42,611 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 23:21:42,612 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-10-28 23:21:42,612 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2021-10-28 23:21:42,620 INFO L791 eck$LassoCheckResult]: Stem: 4#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(16);~c~0 := 0; 9#L-1true havoc main_#res;havoc main_#t~post14, main_#t~nondet13, main_#t~mem15.base, main_#t~mem15.offset, main_#t~mem16.base, main_#t~mem16.offset, main_#t~mem17.base, main_#t~mem17.offset, main_#t~mem18.base, main_#t~mem18.offset, main_#t~mem19.base, main_#t~mem19.offset, main_#t~post20, main_~next~0.base, main_~next~0.offset, main_#t~mem21.base, main_#t~mem21.offset, main_#t~mem22.base, main_#t~mem22.offset, main_#t~mem23.base, main_#t~mem23.offset, main_#t~post24, main_~next~1.base, main_~next~1.offset, main_~#list~0.base, main_~#list~0.offset, main_~length~0;call main_~#list~0.base, main_~#list~0.offset := #Ultimate.allocOnStack(4);call write~init~$Pointer$(0, 0, main_~#list~0.base, main_~#list~0.offset, 4);main_~length~0 := 0; 16#L543-3true [2021-10-28 23:21:42,621 INFO L793 eck$LassoCheckResult]: Loop: 16#L543-3true append_#in~plist.base, append_#in~plist.offset := main_~#list~0.base, main_~#list~0.offset;havoc append_#t~post5, append_#t~malloc6.base, append_#t~malloc6.offset, append_#t~mem7.base, append_#t~mem7.offset, append_#t~mem8.base, append_#t~mem8.offset, append_#t~ite12.base, append_#t~ite12.offset, append_#t~mem9.base, append_#t~mem9.offset, append_#t~mem10.base, append_#t~mem10.offset, append_#t~malloc11.base, append_#t~malloc11.offset, append_~plist.base, append_~plist.offset, append_~item~0.base, append_~item~0.offset;append_~plist.base, append_~plist.offset := append_#in~plist.base, append_#in~plist.offset;append_#t~post5 := ~c~0;~c~0 := 1 + append_#t~post5;havoc append_#t~post5;call append_#t~malloc6.base, append_#t~malloc6.offset := #Ultimate.allocOnHeap(8);append_~item~0.base, append_~item~0.offset := append_#t~malloc6.base, append_#t~malloc6.offset;havoc append_#t~malloc6.base, append_#t~malloc6.offset;call append_#t~mem7.base, append_#t~mem7.offset := read~$Pointer$(append_~plist.base, append_~plist.offset, 4);call write~$Pointer$(append_#t~mem7.base, append_#t~mem7.offset, append_~item~0.base, append_~item~0.offset, 4);havoc append_#t~mem7.base, append_#t~mem7.offset;call append_#t~mem8.base, append_#t~mem8.offset := read~$Pointer$(append_~item~0.base, append_~item~0.offset, 4); 5#L534true assume append_#t~mem8.base != 0 || append_#t~mem8.offset != 0;call append_#t~mem9.base, append_#t~mem9.offset := read~$Pointer$(append_~item~0.base, append_~item~0.offset, 4);call append_#t~mem10.base, append_#t~mem10.offset := read~$Pointer$(append_#t~mem9.base, 4 + append_#t~mem9.offset, 4);append_#t~ite12.base, append_#t~ite12.offset := append_#t~mem10.base, append_#t~mem10.offset; 13#L534-2true call write~$Pointer$(append_#t~ite12.base, append_#t~ite12.offset, append_~item~0.base, 4 + append_~item~0.offset, 4);havoc append_#t~mem8.base, append_#t~mem8.offset;havoc append_#t~ite12.base, append_#t~ite12.offset;havoc append_#t~mem9.base, append_#t~mem9.offset;havoc append_#t~mem10.base, append_#t~mem10.offset;havoc append_#t~malloc11.base, append_#t~malloc11.offset;call write~$Pointer$(append_~item~0.base, append_~item~0.offset, append_~plist.base, append_~plist.offset, 4); 8#L529true main_#t~post14 := main_~length~0;main_~length~0 := 1 + main_#t~post14;havoc main_#t~post14; 11#L543-1true assume !!(0 != main_#t~nondet13 && ~c~0 < 20);havoc main_#t~nondet13; 16#L543-3true [2021-10-28 23:21:42,628 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:21:42,629 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2021-10-28 23:21:42,641 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:21:42,641 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1578446791] [2021-10-28 23:21:42,642 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:21:42,643 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:21:42,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:21:42,761 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:21:42,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:21:42,803 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:21:42,807 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:21:42,807 INFO L85 PathProgramCache]: Analyzing trace with hash 34451375, now seen corresponding path program 1 times [2021-10-28 23:21:42,808 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:21:42,808 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [169479704] [2021-10-28 23:21:42,808 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:21:42,809 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:21:42,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:21:42,850 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:21:42,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:21:42,997 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:21:43,000 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:21:43,000 INFO L85 PathProgramCache]: Analyzing trace with hash 1805890861, now seen corresponding path program 1 times [2021-10-28 23:21:43,000 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:21:43,001 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1709480809] [2021-10-28 23:21:43,001 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:21:43,001 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:21:43,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:21:43,279 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:21:43,280 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:21:43,280 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1709480809] [2021-10-28 23:21:43,283 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1709480809] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:21:43,283 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:21:43,284 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-28 23:21:43,284 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1186010891] [2021-10-28 23:21:45,609 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:21:45,627 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-28 23:21:45,628 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-28 23:21:45,631 INFO L87 Difference]: Start difference. First operand has 15 states, 14 states have (on average 1.5) internal successors, (21), 14 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:21:45,722 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:21:45,723 INFO L93 Difference]: Finished difference Result 19 states and 23 transitions. [2021-10-28 23:21:45,724 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-28 23:21:45,726 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 19 states and 23 transitions. [2021-10-28 23:21:45,732 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 7 [2021-10-28 23:21:45,737 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 19 states to 15 states and 19 transitions. [2021-10-28 23:21:45,738 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 15 [2021-10-28 23:21:45,739 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 15 [2021-10-28 23:21:45,740 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 19 transitions. [2021-10-28 23:21:45,740 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 23:21:45,740 INFO L681 BuchiCegarLoop]: Abstraction has 15 states and 19 transitions. [2021-10-28 23:21:45,760 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states and 19 transitions. [2021-10-28 23:21:45,770 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 13. [2021-10-28 23:21:45,772 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13 states, 13 states have (on average 1.3076923076923077) internal successors, (17), 12 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:21:45,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 17 transitions. [2021-10-28 23:21:45,775 INFO L704 BuchiCegarLoop]: Abstraction has 13 states and 17 transitions. [2021-10-28 23:21:45,775 INFO L587 BuchiCegarLoop]: Abstraction has 13 states and 17 transitions. [2021-10-28 23:21:45,775 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-10-28 23:21:45,776 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 13 states and 17 transitions. [2021-10-28 23:21:45,777 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2021-10-28 23:21:45,777 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 23:21:45,778 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 23:21:45,779 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2021-10-28 23:21:45,779 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2021-10-28 23:21:45,781 INFO L791 eck$LassoCheckResult]: Stem: 50#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(16);~c~0 := 0; 51#L-1 havoc main_#res;havoc main_#t~post14, main_#t~nondet13, main_#t~mem15.base, main_#t~mem15.offset, main_#t~mem16.base, main_#t~mem16.offset, main_#t~mem17.base, main_#t~mem17.offset, main_#t~mem18.base, main_#t~mem18.offset, main_#t~mem19.base, main_#t~mem19.offset, main_#t~post20, main_~next~0.base, main_~next~0.offset, main_#t~mem21.base, main_#t~mem21.offset, main_#t~mem22.base, main_#t~mem22.offset, main_#t~mem23.base, main_#t~mem23.offset, main_#t~post24, main_~next~1.base, main_~next~1.offset, main_~#list~0.base, main_~#list~0.offset, main_~length~0;call main_~#list~0.base, main_~#list~0.offset := #Ultimate.allocOnStack(4);call write~init~$Pointer$(0, 0, main_~#list~0.base, main_~#list~0.offset, 4);main_~length~0 := 0; 57#L543-3 append_#in~plist.base, append_#in~plist.offset := main_~#list~0.base, main_~#list~0.offset;havoc append_#t~post5, append_#t~malloc6.base, append_#t~malloc6.offset, append_#t~mem7.base, append_#t~mem7.offset, append_#t~mem8.base, append_#t~mem8.offset, append_#t~ite12.base, append_#t~ite12.offset, append_#t~mem9.base, append_#t~mem9.offset, append_#t~mem10.base, append_#t~mem10.offset, append_#t~malloc11.base, append_#t~malloc11.offset, append_~plist.base, append_~plist.offset, append_~item~0.base, append_~item~0.offset;append_~plist.base, append_~plist.offset := append_#in~plist.base, append_#in~plist.offset;append_#t~post5 := ~c~0;~c~0 := 1 + append_#t~post5;havoc append_#t~post5;call append_#t~malloc6.base, append_#t~malloc6.offset := #Ultimate.allocOnHeap(8);append_~item~0.base, append_~item~0.offset := append_#t~malloc6.base, append_#t~malloc6.offset;havoc append_#t~malloc6.base, append_#t~malloc6.offset;call append_#t~mem7.base, append_#t~mem7.offset := read~$Pointer$(append_~plist.base, append_~plist.offset, 4);call write~$Pointer$(append_#t~mem7.base, append_#t~mem7.offset, append_~item~0.base, append_~item~0.offset, 4);havoc append_#t~mem7.base, append_#t~mem7.offset;call append_#t~mem8.base, append_#t~mem8.offset := read~$Pointer$(append_~item~0.base, append_~item~0.offset, 4); 52#L534 assume !(append_#t~mem8.base != 0 || append_#t~mem8.offset != 0);call append_#t~malloc11.base, append_#t~malloc11.offset := #Ultimate.allocOnHeap(8);append_#t~ite12.base, append_#t~ite12.offset := append_#t~malloc11.base, append_#t~malloc11.offset; 48#L534-2 [2021-10-28 23:21:45,781 INFO L793 eck$LassoCheckResult]: Loop: 48#L534-2 call write~$Pointer$(append_#t~ite12.base, append_#t~ite12.offset, append_~item~0.base, 4 + append_~item~0.offset, 4);havoc append_#t~mem8.base, append_#t~mem8.offset;havoc append_#t~ite12.base, append_#t~ite12.offset;havoc append_#t~mem9.base, append_#t~mem9.offset;havoc append_#t~mem10.base, append_#t~mem10.offset;havoc append_#t~malloc11.base, append_#t~malloc11.offset;call write~$Pointer$(append_~item~0.base, append_~item~0.offset, append_~plist.base, append_~plist.offset, 4); 49#L529 main_#t~post14 := main_~length~0;main_~length~0 := 1 + main_#t~post14;havoc main_#t~post14; 55#L543-1 assume !!(0 != main_#t~nondet13 && ~c~0 < 20);havoc main_#t~nondet13; 59#L543-3 append_#in~plist.base, append_#in~plist.offset := main_~#list~0.base, main_~#list~0.offset;havoc append_#t~post5, append_#t~malloc6.base, append_#t~malloc6.offset, append_#t~mem7.base, append_#t~mem7.offset, append_#t~mem8.base, append_#t~mem8.offset, append_#t~ite12.base, append_#t~ite12.offset, append_#t~mem9.base, append_#t~mem9.offset, append_#t~mem10.base, append_#t~mem10.offset, append_#t~malloc11.base, append_#t~malloc11.offset, append_~plist.base, append_~plist.offset, append_~item~0.base, append_~item~0.offset;append_~plist.base, append_~plist.offset := append_#in~plist.base, append_#in~plist.offset;append_#t~post5 := ~c~0;~c~0 := 1 + append_#t~post5;havoc append_#t~post5;call append_#t~malloc6.base, append_#t~malloc6.offset := #Ultimate.allocOnHeap(8);append_~item~0.base, append_~item~0.offset := append_#t~malloc6.base, append_#t~malloc6.offset;havoc append_#t~malloc6.base, append_#t~malloc6.offset;call append_#t~mem7.base, append_#t~mem7.offset := read~$Pointer$(append_~plist.base, append_~plist.offset, 4);call write~$Pointer$(append_#t~mem7.base, append_#t~mem7.offset, append_~item~0.base, append_~item~0.offset, 4);havoc append_#t~mem7.base, append_#t~mem7.offset;call append_#t~mem8.base, append_#t~mem8.offset := read~$Pointer$(append_~item~0.base, append_~item~0.offset, 4); 60#L534 assume append_#t~mem8.base != 0 || append_#t~mem8.offset != 0;call append_#t~mem9.base, append_#t~mem9.offset := read~$Pointer$(append_~item~0.base, append_~item~0.offset, 4);call append_#t~mem10.base, append_#t~mem10.offset := read~$Pointer$(append_#t~mem9.base, 4 + append_#t~mem9.offset, 4);append_#t~ite12.base, append_#t~ite12.offset := append_#t~mem10.base, append_#t~mem10.offset; 48#L534-2 [2021-10-28 23:21:45,782 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:21:45,782 INFO L85 PathProgramCache]: Analyzing trace with hash 925640, now seen corresponding path program 1 times [2021-10-28 23:21:45,782 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:21:45,782 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1247299923] [2021-10-28 23:21:45,783 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:21:45,783 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:21:45,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:21:45,826 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:21:45,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:21:45,853 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:21:45,854 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:21:45,854 INFO L85 PathProgramCache]: Analyzing trace with hash 41102165, now seen corresponding path program 2 times [2021-10-28 23:21:45,855 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:21:45,855 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1220523814] [2021-10-28 23:21:45,855 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:21:45,855 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:21:45,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:21:45,875 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:21:45,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:21:45,908 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:21:45,908 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:21:45,908 INFO L85 PathProgramCache]: Analyzing trace with hash 351588334, now seen corresponding path program 1 times [2021-10-28 23:21:45,909 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:21:45,909 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1886197909] [2021-10-28 23:21:45,909 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:21:45,910 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:21:46,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:21:46,021 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:21:46,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:21:46,084 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:21:49,034 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 23:21:49,035 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 23:21:49,035 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 23:21:49,035 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 23:21:49,035 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-28 23:21:49,035 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:21:49,036 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 23:21:49,036 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 23:21:49,036 INFO L133 ssoRankerPreferences]: Filename of dumped script: test-0232_1-1.i_Iteration2_Lasso [2021-10-28 23:21:49,036 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 23:21:49,036 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 23:21:49,071 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:21:49,076 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:21:49,081 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:21:49,083 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:21:49,087 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:21:50,903 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:21:50,909 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:21:50,911 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:21:50,913 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:21:50,914 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:21:50,916 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:21:50,918 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:21:50,941 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:21:50,943 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:21:50,946 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:21:50,948 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:21:50,950 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:21:50,952 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:21:50,957 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:21:50,960 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:21:50,962 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:21:50,965 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:21:50,966 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:21:50,968 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:21:50,971 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:21:50,973 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:21:50,975 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:21:50,978 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:21:50,981 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:21:50,983 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:21:50,985 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:21:50,987 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:21:50,989 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:21:50,991 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:21:50,992 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:21:50,994 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:21:50,996 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:21:50,999 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:21:51,001 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:21:56,029 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 23:21:56,034 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-28 23:21:56,036 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:21:56,036 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c60e424-bd7f-42e2-8db5-1551c8be1762/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:21:56,041 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c60e424-bd7f-42e2-8db5-1551c8be1762/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:21:56,053 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 [2021-10-28 23:21:56,065 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:21:56,066 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:21:56,066 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:21:56,066 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:21:56,067 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:21:56,068 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c60e424-bd7f-42e2-8db5-1551c8be1762/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2021-10-28 23:21:56,072 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 23:21:56,073 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:21:56,088 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:21:56,128 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c60e424-bd7f-42e2-8db5-1551c8be1762/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2021-10-28 23:21:56,128 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:21:56,128 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c60e424-bd7f-42e2-8db5-1551c8be1762/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:21:56,130 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c60e424-bd7f-42e2-8db5-1551c8be1762/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:21:56,137 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 [2021-10-28 23:21:56,149 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:21:56,150 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:21:56,150 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:21:56,150 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:21:56,155 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 23:21:56,155 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 23:21:56,165 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c60e424-bd7f-42e2-8db5-1551c8be1762/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2021-10-28 23:21:56,179 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:21:56,219 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c60e424-bd7f-42e2-8db5-1551c8be1762/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2021-10-28 23:21:56,220 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:21:56,220 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c60e424-bd7f-42e2-8db5-1551c8be1762/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:21:56,221 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c60e424-bd7f-42e2-8db5-1551c8be1762/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:21:56,227 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 [2021-10-28 23:21:56,236 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:21:56,236 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:21:56,236 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:21:56,237 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:21:56,237 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:21:56,237 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 23:21:56,237 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:21:56,239 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c60e424-bd7f-42e2-8db5-1551c8be1762/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2021-10-28 23:21:56,257 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:21:56,293 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c60e424-bd7f-42e2-8db5-1551c8be1762/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2021-10-28 23:21:56,294 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:21:56,294 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c60e424-bd7f-42e2-8db5-1551c8be1762/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:21:56,296 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c60e424-bd7f-42e2-8db5-1551c8be1762/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:21:56,302 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 [2021-10-28 23:21:56,311 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:21:56,312 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:21:56,312 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:21:56,312 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:21:56,316 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 23:21:56,316 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 23:21:56,319 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c60e424-bd7f-42e2-8db5-1551c8be1762/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2021-10-28 23:21:56,327 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:21:56,365 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c60e424-bd7f-42e2-8db5-1551c8be1762/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2021-10-28 23:21:56,367 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:21:56,368 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c60e424-bd7f-42e2-8db5-1551c8be1762/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:21:56,369 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c60e424-bd7f-42e2-8db5-1551c8be1762/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:21:56,375 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 [2021-10-28 23:21:56,385 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:21:56,385 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:21:56,385 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:21:56,385 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:21:56,391 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c60e424-bd7f-42e2-8db5-1551c8be1762/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2021-10-28 23:21:56,399 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 23:21:56,400 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 23:21:56,411 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:21:56,453 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c60e424-bd7f-42e2-8db5-1551c8be1762/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2021-10-28 23:21:56,453 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:21:56,453 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c60e424-bd7f-42e2-8db5-1551c8be1762/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:21:56,455 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c60e424-bd7f-42e2-8db5-1551c8be1762/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:21:56,461 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 [2021-10-28 23:21:56,471 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:21:56,471 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:21:56,471 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:21:56,471 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:21:56,476 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 23:21:56,476 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 23:21:56,483 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c60e424-bd7f-42e2-8db5-1551c8be1762/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2021-10-28 23:21:56,499 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:21:56,539 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c60e424-bd7f-42e2-8db5-1551c8be1762/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2021-10-28 23:21:56,539 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:21:56,540 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c60e424-bd7f-42e2-8db5-1551c8be1762/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:21:56,541 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c60e424-bd7f-42e2-8db5-1551c8be1762/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:21:56,559 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c60e424-bd7f-42e2-8db5-1551c8be1762/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2021-10-28 23:21:56,560 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 [2021-10-28 23:21:56,571 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:21:56,571 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:21:56,571 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:21:56,571 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:21:56,573 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 23:21:56,574 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 23:21:56,579 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:21:56,604 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c60e424-bd7f-42e2-8db5-1551c8be1762/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2021-10-28 23:21:56,605 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:21:56,605 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c60e424-bd7f-42e2-8db5-1551c8be1762/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:21:56,606 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c60e424-bd7f-42e2-8db5-1551c8be1762/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:21:56,607 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c60e424-bd7f-42e2-8db5-1551c8be1762/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2021-10-28 23:21:56,607 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 [2021-10-28 23:21:56,615 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:21:56,616 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:21:56,616 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:21:56,616 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:21:56,618 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 23:21:56,618 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 23:21:56,643 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:21:56,681 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c60e424-bd7f-42e2-8db5-1551c8be1762/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2021-10-28 23:21:56,681 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:21:56,682 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c60e424-bd7f-42e2-8db5-1551c8be1762/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:21:56,683 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c60e424-bd7f-42e2-8db5-1551c8be1762/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:21:56,693 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 [2021-10-28 23:21:56,703 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:21:56,704 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:21:56,704 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:21:56,704 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:21:56,704 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:21:56,705 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 23:21:56,705 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:21:56,707 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c60e424-bd7f-42e2-8db5-1551c8be1762/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2021-10-28 23:21:56,723 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:21:56,749 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c60e424-bd7f-42e2-8db5-1551c8be1762/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2021-10-28 23:21:56,749 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:21:56,749 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c60e424-bd7f-42e2-8db5-1551c8be1762/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:21:56,750 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c60e424-bd7f-42e2-8db5-1551c8be1762/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:21:56,752 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c60e424-bd7f-42e2-8db5-1551c8be1762/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2021-10-28 23:21:56,752 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 [2021-10-28 23:21:56,761 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:21:56,761 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:21:56,761 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:21:56,761 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:21:56,763 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 23:21:56,763 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 23:21:56,791 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:21:56,829 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c60e424-bd7f-42e2-8db5-1551c8be1762/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2021-10-28 23:21:56,829 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:21:56,829 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c60e424-bd7f-42e2-8db5-1551c8be1762/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:21:56,832 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c60e424-bd7f-42e2-8db5-1551c8be1762/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:21:56,838 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 [2021-10-28 23:21:56,848 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:21:56,848 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:21:56,849 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:21:56,849 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:21:56,853 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 23:21:56,853 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 23:21:56,858 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c60e424-bd7f-42e2-8db5-1551c8be1762/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2021-10-28 23:21:56,867 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:21:56,891 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c60e424-bd7f-42e2-8db5-1551c8be1762/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2021-10-28 23:21:56,891 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:21:56,891 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c60e424-bd7f-42e2-8db5-1551c8be1762/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:21:56,892 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c60e424-bd7f-42e2-8db5-1551c8be1762/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:21:56,893 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c60e424-bd7f-42e2-8db5-1551c8be1762/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2021-10-28 23:21:56,894 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 [2021-10-28 23:21:56,902 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:21:56,903 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:21:56,903 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:21:56,903 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:21:56,903 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:21:56,904 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 23:21:56,904 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:21:56,917 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:21:56,951 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c60e424-bd7f-42e2-8db5-1551c8be1762/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2021-10-28 23:21:56,951 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:21:56,951 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c60e424-bd7f-42e2-8db5-1551c8be1762/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:21:56,952 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c60e424-bd7f-42e2-8db5-1551c8be1762/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:21:56,953 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c60e424-bd7f-42e2-8db5-1551c8be1762/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2021-10-28 23:21:56,954 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 [2021-10-28 23:21:56,963 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:21:56,963 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:21:56,963 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:21:56,963 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:21:56,963 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:21:56,964 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 23:21:56,964 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:21:56,965 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:21:56,988 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c60e424-bd7f-42e2-8db5-1551c8be1762/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0 [2021-10-28 23:21:56,988 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:21:56,988 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c60e424-bd7f-42e2-8db5-1551c8be1762/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:21:56,989 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c60e424-bd7f-42e2-8db5-1551c8be1762/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:21:56,990 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c60e424-bd7f-42e2-8db5-1551c8be1762/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2021-10-28 23:21:56,991 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 [2021-10-28 23:21:56,999 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:21:56,999 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:21:56,999 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:21:56,999 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:21:57,000 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:21:57,000 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 23:21:57,000 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:21:57,005 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:21:57,027 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c60e424-bd7f-42e2-8db5-1551c8be1762/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Forceful destruction successful, exit code 0 [2021-10-28 23:21:57,027 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:21:57,027 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c60e424-bd7f-42e2-8db5-1551c8be1762/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:21:57,028 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c60e424-bd7f-42e2-8db5-1551c8be1762/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:21:57,033 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c60e424-bd7f-42e2-8db5-1551c8be1762/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2021-10-28 23:21:57,034 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 [2021-10-28 23:21:57,041 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:21:57,041 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:21:57,042 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:21:57,042 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:21:57,042 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:21:57,042 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 23:21:57,042 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:21:57,050 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:21:57,071 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c60e424-bd7f-42e2-8db5-1551c8be1762/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Forceful destruction successful, exit code 0 [2021-10-28 23:21:57,071 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:21:57,072 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c60e424-bd7f-42e2-8db5-1551c8be1762/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:21:57,072 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c60e424-bd7f-42e2-8db5-1551c8be1762/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:21:57,073 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c60e424-bd7f-42e2-8db5-1551c8be1762/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2021-10-28 23:21:57,076 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 [2021-10-28 23:21:57,083 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:21:57,084 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:21:57,084 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:21:57,084 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:21:57,085 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 23:21:57,085 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 23:21:57,088 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:21:57,113 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c60e424-bd7f-42e2-8db5-1551c8be1762/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Forceful destruction successful, exit code 0 [2021-10-28 23:21:57,113 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:21:57,113 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c60e424-bd7f-42e2-8db5-1551c8be1762/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:21:57,114 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c60e424-bd7f-42e2-8db5-1551c8be1762/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:21:57,115 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c60e424-bd7f-42e2-8db5-1551c8be1762/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2021-10-28 23:21:57,116 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 [2021-10-28 23:21:57,126 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:21:57,126 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:21:57,126 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:21:57,126 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:21:57,135 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 23:21:57,135 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 23:21:57,151 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:21:57,177 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c60e424-bd7f-42e2-8db5-1551c8be1762/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Forceful destruction successful, exit code 0 [2021-10-28 23:21:57,178 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:21:57,178 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c60e424-bd7f-42e2-8db5-1551c8be1762/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:21:57,179 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c60e424-bd7f-42e2-8db5-1551c8be1762/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:21:57,180 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c60e424-bd7f-42e2-8db5-1551c8be1762/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2021-10-28 23:21:57,181 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 [2021-10-28 23:21:57,189 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:21:57,190 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:21:57,190 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:21:57,190 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:21:57,204 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 23:21:57,204 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 23:21:57,213 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:21:57,234 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c60e424-bd7f-42e2-8db5-1551c8be1762/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Forceful destruction successful, exit code 0 [2021-10-28 23:21:57,235 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:21:57,235 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c60e424-bd7f-42e2-8db5-1551c8be1762/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:21:57,236 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c60e424-bd7f-42e2-8db5-1551c8be1762/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:21:57,241 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c60e424-bd7f-42e2-8db5-1551c8be1762/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2021-10-28 23:21:57,242 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 [2021-10-28 23:21:57,250 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:21:57,250 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:21:57,250 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:21:57,250 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:21:57,250 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:21:57,251 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 23:21:57,251 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:21:57,252 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:21:57,275 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c60e424-bd7f-42e2-8db5-1551c8be1762/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Forceful destruction successful, exit code 0 [2021-10-28 23:21:57,275 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:21:57,275 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c60e424-bd7f-42e2-8db5-1551c8be1762/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:21:57,276 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c60e424-bd7f-42e2-8db5-1551c8be1762/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:21:57,277 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c60e424-bd7f-42e2-8db5-1551c8be1762/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2021-10-28 23:21:57,280 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:21:57,288 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:21:57,289 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:21:57,289 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:21:57,289 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:21:57,289 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:21:57,290 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 23:21:57,290 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:21:57,293 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:21:57,317 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c60e424-bd7f-42e2-8db5-1551c8be1762/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Forceful destruction successful, exit code 0 [2021-10-28 23:21:57,319 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:21:57,319 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c60e424-bd7f-42e2-8db5-1551c8be1762/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:21:57,320 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c60e424-bd7f-42e2-8db5-1551c8be1762/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:21:57,328 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c60e424-bd7f-42e2-8db5-1551c8be1762/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2021-10-28 23:21:57,329 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 [2021-10-28 23:21:57,338 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:21:57,339 INFO L203 nArgumentSynthesizer]: 4 stem disjuncts [2021-10-28 23:21:57,339 INFO L204 nArgumentSynthesizer]: 8 loop disjuncts [2021-10-28 23:21:57,339 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:21:58,578 INFO L401 nArgumentSynthesizer]: We have 208 Motzkin's Theorem applications. [2021-10-28 23:21:58,578 INFO L402 nArgumentSynthesizer]: A total of 16 supporting invariants were added. [2021-10-28 23:22:01,225 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:22:01,278 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c60e424-bd7f-42e2-8db5-1551c8be1762/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Ended with exit code 0 [2021-10-28 23:22:01,279 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:22:01,279 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c60e424-bd7f-42e2-8db5-1551c8be1762/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:22:01,280 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c60e424-bd7f-42e2-8db5-1551c8be1762/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:22:01,281 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c60e424-bd7f-42e2-8db5-1551c8be1762/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2021-10-28 23:22:01,282 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 [2021-10-28 23:22:01,290 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:22:01,290 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:22:01,290 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:22:01,290 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:22:01,293 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 23:22:01,293 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 23:22:01,319 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:22:01,341 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c60e424-bd7f-42e2-8db5-1551c8be1762/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Ended with exit code 0 [2021-10-28 23:22:01,342 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:22:01,342 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c60e424-bd7f-42e2-8db5-1551c8be1762/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:22:01,342 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c60e424-bd7f-42e2-8db5-1551c8be1762/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:22:01,343 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c60e424-bd7f-42e2-8db5-1551c8be1762/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2021-10-28 23:22:01,344 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 [2021-10-28 23:22:01,351 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:22:01,352 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:22:01,352 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:22:01,352 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:22:01,352 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:22:01,352 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 23:22:01,352 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:22:01,371 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:22:01,391 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c60e424-bd7f-42e2-8db5-1551c8be1762/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Forceful destruction successful, exit code 0 [2021-10-28 23:22:01,392 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:22:01,392 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c60e424-bd7f-42e2-8db5-1551c8be1762/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:22:01,393 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c60e424-bd7f-42e2-8db5-1551c8be1762/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:22:01,393 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c60e424-bd7f-42e2-8db5-1551c8be1762/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process [2021-10-28 23:22:01,394 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 [2021-10-28 23:22:01,401 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:22:01,402 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:22:01,402 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:22:01,402 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:22:01,402 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:22:01,419 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 23:22:01,420 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:22:01,439 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:22:01,476 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c60e424-bd7f-42e2-8db5-1551c8be1762/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Forceful destruction successful, exit code 0 [2021-10-28 23:22:01,476 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:22:01,476 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c60e424-bd7f-42e2-8db5-1551c8be1762/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:22:01,477 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c60e424-bd7f-42e2-8db5-1551c8be1762/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:22:01,480 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 [2021-10-28 23:22:01,484 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c60e424-bd7f-42e2-8db5-1551c8be1762/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Waiting until timeout for monitored process [2021-10-28 23:22:01,488 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:22:01,488 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:22:01,488 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:22:01,489 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:22:01,489 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:22:01,489 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 23:22:01,489 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:22:01,490 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:22:01,513 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c60e424-bd7f-42e2-8db5-1551c8be1762/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Forceful destruction successful, exit code 0 [2021-10-28 23:22:01,514 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:22:01,514 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c60e424-bd7f-42e2-8db5-1551c8be1762/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:22:01,515 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c60e424-bd7f-42e2-8db5-1551c8be1762/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:22:01,517 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c60e424-bd7f-42e2-8db5-1551c8be1762/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Waiting until timeout for monitored process [2021-10-28 23:22:01,517 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 [2021-10-28 23:22:01,524 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:22:01,525 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:22:01,525 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:22:01,525 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:22:01,525 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:22:01,525 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 23:22:01,525 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:22:01,526 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:22:01,550 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c60e424-bd7f-42e2-8db5-1551c8be1762/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Forceful destruction successful, exit code 0 [2021-10-28 23:22:01,550 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:22:01,550 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c60e424-bd7f-42e2-8db5-1551c8be1762/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:22:01,551 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c60e424-bd7f-42e2-8db5-1551c8be1762/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:22:01,553 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c60e424-bd7f-42e2-8db5-1551c8be1762/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Waiting until timeout for monitored process [2021-10-28 23:22:01,553 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 [2021-10-28 23:22:01,561 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:22:01,561 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:22:01,561 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:22:01,561 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:22:01,561 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:22:01,562 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 23:22:01,562 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:22:01,563 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:22:01,583 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c60e424-bd7f-42e2-8db5-1551c8be1762/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Ended with exit code 0 [2021-10-28 23:22:01,584 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:22:01,584 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c60e424-bd7f-42e2-8db5-1551c8be1762/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:22:01,585 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c60e424-bd7f-42e2-8db5-1551c8be1762/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:22:01,587 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c60e424-bd7f-42e2-8db5-1551c8be1762/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Waiting until timeout for monitored process [2021-10-28 23:22:01,587 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 [2021-10-28 23:22:01,595 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:22:01,595 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:22:01,595 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:22:01,595 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:22:01,595 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:22:01,595 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 23:22:01,596 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:22:01,597 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:22:01,621 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c60e424-bd7f-42e2-8db5-1551c8be1762/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Forceful destruction successful, exit code 0 [2021-10-28 23:22:01,621 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:22:01,622 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c60e424-bd7f-42e2-8db5-1551c8be1762/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:22:01,622 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c60e424-bd7f-42e2-8db5-1551c8be1762/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:22:01,623 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c60e424-bd7f-42e2-8db5-1551c8be1762/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Waiting until timeout for monitored process [2021-10-28 23:22:01,624 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 [2021-10-28 23:22:01,632 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:22:01,632 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:22:01,632 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:22:01,632 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:22:01,632 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:22:01,633 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 23:22:01,633 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:22:01,634 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:22:01,654 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c60e424-bd7f-42e2-8db5-1551c8be1762/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Forceful destruction successful, exit code 0 [2021-10-28 23:22:01,654 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:22:01,655 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c60e424-bd7f-42e2-8db5-1551c8be1762/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:22:01,655 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c60e424-bd7f-42e2-8db5-1551c8be1762/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:22:01,656 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c60e424-bd7f-42e2-8db5-1551c8be1762/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Waiting until timeout for monitored process [2021-10-28 23:22:01,658 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 [2021-10-28 23:22:01,665 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:22:01,666 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:22:01,666 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:22:01,666 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:22:01,666 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:22:01,666 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 23:22:01,666 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:22:01,671 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:22:01,693 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c60e424-bd7f-42e2-8db5-1551c8be1762/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Ended with exit code 0 [2021-10-28 23:22:01,693 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:22:01,693 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c60e424-bd7f-42e2-8db5-1551c8be1762/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:22:01,694 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c60e424-bd7f-42e2-8db5-1551c8be1762/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:22:01,696 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c60e424-bd7f-42e2-8db5-1551c8be1762/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Waiting until timeout for monitored process [2021-10-28 23:22:01,696 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 [2021-10-28 23:22:01,703 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:22:01,704 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:22:01,704 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:22:01,704 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:22:01,704 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:22:01,704 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 23:22:01,704 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:22:01,705 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:22:01,726 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c60e424-bd7f-42e2-8db5-1551c8be1762/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Ended with exit code 0 [2021-10-28 23:22:01,726 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:22:01,727 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c60e424-bd7f-42e2-8db5-1551c8be1762/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:22:01,727 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c60e424-bd7f-42e2-8db5-1551c8be1762/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:22:01,728 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c60e424-bd7f-42e2-8db5-1551c8be1762/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Waiting until timeout for monitored process [2021-10-28 23:22:01,728 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 [2021-10-28 23:22:01,736 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:22:01,736 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:22:01,736 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:22:01,736 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:22:01,738 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 23:22:01,738 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 23:22:01,763 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:22:01,808 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c60e424-bd7f-42e2-8db5-1551c8be1762/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Forceful destruction successful, exit code 0 [2021-10-28 23:22:01,808 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:22:01,808 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c60e424-bd7f-42e2-8db5-1551c8be1762/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:22:01,809 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c60e424-bd7f-42e2-8db5-1551c8be1762/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:22:01,812 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 [2021-10-28 23:22:01,821 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:22:01,822 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:22:01,822 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:22:01,822 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:22:01,822 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:22:01,822 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 23:22:01,823 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:22:01,824 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c60e424-bd7f-42e2-8db5-1551c8be1762/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Waiting until timeout for monitored process [2021-10-28 23:22:01,839 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:22:01,860 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c60e424-bd7f-42e2-8db5-1551c8be1762/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Ended with exit code 0 [2021-10-28 23:22:01,860 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:22:01,861 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c60e424-bd7f-42e2-8db5-1551c8be1762/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:22:01,862 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c60e424-bd7f-42e2-8db5-1551c8be1762/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:22:01,863 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c60e424-bd7f-42e2-8db5-1551c8be1762/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Waiting until timeout for monitored process [2021-10-28 23:22:01,864 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 [2021-10-28 23:22:01,871 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:22:01,871 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:22:01,871 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:22:01,871 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:22:01,871 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:22:01,872 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 23:22:01,872 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:22:01,873 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:22:01,894 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c60e424-bd7f-42e2-8db5-1551c8be1762/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Ended with exit code 0 [2021-10-28 23:22:01,895 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:22:01,895 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c60e424-bd7f-42e2-8db5-1551c8be1762/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:22:01,896 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c60e424-bd7f-42e2-8db5-1551c8be1762/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:22:01,897 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c60e424-bd7f-42e2-8db5-1551c8be1762/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Waiting until timeout for monitored process [2021-10-28 23:22:01,897 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 [2021-10-28 23:22:01,905 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:22:01,905 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:22:01,905 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:22:01,906 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:22:01,906 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:22:01,906 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 23:22:01,906 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:22:01,907 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:22:01,927 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c60e424-bd7f-42e2-8db5-1551c8be1762/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Ended with exit code 0 [2021-10-28 23:22:01,928 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:22:01,928 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c60e424-bd7f-42e2-8db5-1551c8be1762/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:22:01,928 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c60e424-bd7f-42e2-8db5-1551c8be1762/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:22:01,929 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c60e424-bd7f-42e2-8db5-1551c8be1762/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Waiting until timeout for monitored process [2021-10-28 23:22:01,930 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 [2021-10-28 23:22:01,938 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:22:01,938 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:22:01,938 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:22:01,939 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:22:01,941 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 23:22:01,941 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 23:22:01,945 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-28 23:22:01,990 INFO L443 ModelExtractionUtils]: Simplification made 8 calls to the SMT solver. [2021-10-28 23:22:01,990 INFO L444 ModelExtractionUtils]: 0 out of 7 variables were initially zero. Simplification set additionally 4 variables to zero. [2021-10-28 23:22:01,992 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:22:01,992 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c60e424-bd7f-42e2-8db5-1551c8be1762/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:22:02,002 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c60e424-bd7f-42e2-8db5-1551c8be1762/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:22:02,005 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-28 23:22:02,014 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c60e424-bd7f-42e2-8db5-1551c8be1762/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Waiting until timeout for monitored process [2021-10-28 23:22:02,036 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2021-10-28 23:22:02,036 INFO L513 LassoAnalysis]: Proved termination. [2021-10-28 23:22:02,037 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(~c~0) = -2*~c~0 + 39 Supporting invariants [] [2021-10-28 23:22:02,121 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c60e424-bd7f-42e2-8db5-1551c8be1762/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Forceful destruction successful, exit code 0 [2021-10-28 23:22:02,187 INFO L297 tatePredicateManager]: 11 out of 11 supporting invariants were superfluous and have been removed [2021-10-28 23:22:02,215 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:22:02,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:22:02,247 INFO L263 TraceCheckSpWp]: Trace formula consists of 90 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-28 23:22:02,248 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:22:02,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:22:02,295 INFO L263 TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-28 23:22:02,296 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:22:02,377 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:22:02,381 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2021-10-28 23:22:02,382 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 13 states and 17 transitions. cyclomatic complexity: 6 Second operand has 5 states, 5 states have (on average 1.8) internal successors, (9), 5 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:22:02,429 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 13 states and 17 transitions. cyclomatic complexity: 6. Second operand has 5 states, 5 states have (on average 1.8) internal successors, (9), 5 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 23 states and 32 transitions. Complement of second has 6 states. [2021-10-28 23:22:02,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2021-10-28 23:22:02,431 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 5 states have (on average 1.8) internal successors, (9), 5 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:22:02,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 18 transitions. [2021-10-28 23:22:02,433 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 18 transitions. Stem has 4 letters. Loop has 5 letters. [2021-10-28 23:22:02,435 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 23:22:02,435 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 18 transitions. Stem has 9 letters. Loop has 5 letters. [2021-10-28 23:22:02,436 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 23:22:02,436 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 18 transitions. Stem has 4 letters. Loop has 10 letters. [2021-10-28 23:22:02,437 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 23:22:02,438 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 23 states and 32 transitions. [2021-10-28 23:22:02,442 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2021-10-28 23:22:02,445 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 23 states to 18 states and 24 transitions. [2021-10-28 23:22:02,445 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 11 [2021-10-28 23:22:02,445 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 13 [2021-10-28 23:22:02,445 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 24 transitions. [2021-10-28 23:22:02,446 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-28 23:22:02,446 INFO L681 BuchiCegarLoop]: Abstraction has 18 states and 24 transitions. [2021-10-28 23:22:02,446 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states and 24 transitions. [2021-10-28 23:22:02,448 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 17. [2021-10-28 23:22:02,449 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17 states, 17 states have (on average 1.3529411764705883) internal successors, (23), 16 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:22:02,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 23 transitions. [2021-10-28 23:22:02,450 INFO L704 BuchiCegarLoop]: Abstraction has 17 states and 23 transitions. [2021-10-28 23:22:02,450 INFO L587 BuchiCegarLoop]: Abstraction has 17 states and 23 transitions. [2021-10-28 23:22:02,451 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-10-28 23:22:02,451 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 17 states and 23 transitions. [2021-10-28 23:22:02,453 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2021-10-28 23:22:02,453 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 23:22:02,453 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 23:22:02,455 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:22:02,455 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1] [2021-10-28 23:22:02,455 INFO L791 eck$LassoCheckResult]: Stem: 183#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(16);~c~0 := 0; 184#L-1 havoc main_#res;havoc main_#t~post14, main_#t~nondet13, main_#t~mem15.base, main_#t~mem15.offset, main_#t~mem16.base, main_#t~mem16.offset, main_#t~mem17.base, main_#t~mem17.offset, main_#t~mem18.base, main_#t~mem18.offset, main_#t~mem19.base, main_#t~mem19.offset, main_#t~post20, main_~next~0.base, main_~next~0.offset, main_#t~mem21.base, main_#t~mem21.offset, main_#t~mem22.base, main_#t~mem22.offset, main_#t~mem23.base, main_#t~mem23.offset, main_#t~post24, main_~next~1.base, main_~next~1.offset, main_~#list~0.base, main_~#list~0.offset, main_~length~0;call main_~#list~0.base, main_~#list~0.offset := #Ultimate.allocOnStack(4);call write~init~$Pointer$(0, 0, main_~#list~0.base, main_~#list~0.offset, 4);main_~length~0 := 0; 193#L543-3 append_#in~plist.base, append_#in~plist.offset := main_~#list~0.base, main_~#list~0.offset;havoc append_#t~post5, append_#t~malloc6.base, append_#t~malloc6.offset, append_#t~mem7.base, append_#t~mem7.offset, append_#t~mem8.base, append_#t~mem8.offset, append_#t~ite12.base, append_#t~ite12.offset, append_#t~mem9.base, append_#t~mem9.offset, append_#t~mem10.base, append_#t~mem10.offset, append_#t~malloc11.base, append_#t~malloc11.offset, append_~plist.base, append_~plist.offset, append_~item~0.base, append_~item~0.offset;append_~plist.base, append_~plist.offset := append_#in~plist.base, append_#in~plist.offset;append_#t~post5 := ~c~0;~c~0 := 1 + append_#t~post5;havoc append_#t~post5;call append_#t~malloc6.base, append_#t~malloc6.offset := #Ultimate.allocOnHeap(8);append_~item~0.base, append_~item~0.offset := append_#t~malloc6.base, append_#t~malloc6.offset;havoc append_#t~malloc6.base, append_#t~malloc6.offset;call append_#t~mem7.base, append_#t~mem7.offset := read~$Pointer$(append_~plist.base, append_~plist.offset, 4);call write~$Pointer$(append_#t~mem7.base, append_#t~mem7.offset, append_~item~0.base, append_~item~0.offset, 4);havoc append_#t~mem7.base, append_#t~mem7.offset;call append_#t~mem8.base, append_#t~mem8.offset := read~$Pointer$(append_~item~0.base, append_~item~0.offset, 4); 185#L534 assume !(append_#t~mem8.base != 0 || append_#t~mem8.offset != 0);call append_#t~malloc11.base, append_#t~malloc11.offset := #Ultimate.allocOnHeap(8);append_#t~ite12.base, append_#t~ite12.offset := append_#t~malloc11.base, append_#t~malloc11.offset; 186#L534-2 call write~$Pointer$(append_#t~ite12.base, append_#t~ite12.offset, append_~item~0.base, 4 + append_~item~0.offset, 4);havoc append_#t~mem8.base, append_#t~mem8.offset;havoc append_#t~ite12.base, append_#t~ite12.offset;havoc append_#t~mem9.base, append_#t~mem9.offset;havoc append_#t~mem10.base, append_#t~mem10.offset;havoc append_#t~malloc11.base, append_#t~malloc11.offset;call write~$Pointer$(append_~item~0.base, append_~item~0.offset, append_~plist.base, append_~plist.offset, 4); 180#L529 main_#t~post14 := main_~length~0;main_~length~0 := 1 + main_#t~post14;havoc main_#t~post14; 191#L543-1 assume !(0 != main_#t~nondet13 && ~c~0 < 20);havoc main_#t~nondet13; 194#L543-4 assume !(main_~length~0 > 0); 190#L556-1 [2021-10-28 23:22:02,455 INFO L793 eck$LassoCheckResult]: Loop: 190#L556-1 assume !!(main_~length~0 > 0);call main_#t~mem21.base, main_#t~mem21.offset := read~$Pointer$(main_~#list~0.base, main_~#list~0.offset, 4);call main_#t~mem22.base, main_#t~mem22.offset := read~$Pointer$(main_#t~mem21.base, main_#t~mem21.offset, 4);main_~next~1.base, main_~next~1.offset := main_#t~mem22.base, main_#t~mem22.offset;havoc main_#t~mem21.base, main_#t~mem21.offset;havoc main_#t~mem22.base, main_#t~mem22.offset;call main_#t~mem23.base, main_#t~mem23.offset := read~$Pointer$(main_~#list~0.base, main_~#list~0.offset, 4);call ULTIMATE.dealloc(main_#t~mem23.base, main_#t~mem23.offset);havoc main_#t~mem23.base, main_#t~mem23.offset;call write~$Pointer$(main_~next~1.base, main_~next~1.offset, main_~#list~0.base, main_~#list~0.offset, 4);main_#t~post24 := main_~length~0;main_~length~0 := main_#t~post24 - 1;havoc main_#t~post24; 190#L556-1 [2021-10-28 23:22:02,456 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:22:02,456 INFO L85 PathProgramCache]: Analyzing trace with hash 149888859, now seen corresponding path program 1 times [2021-10-28 23:22:02,456 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:22:02,459 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [304245996] [2021-10-28 23:22:02,459 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:22:02,460 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:22:02,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:22:02,543 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:22:02,544 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:22:02,544 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [304245996] [2021-10-28 23:22:02,548 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [304245996] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:22:02,548 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:22:02,548 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-28 23:22:02,549 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [201901474] [2021-10-28 23:22:02,549 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-10-28 23:22:02,549 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:22:02,550 INFO L85 PathProgramCache]: Analyzing trace with hash 76, now seen corresponding path program 1 times [2021-10-28 23:22:02,550 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:22:02,550 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1167507169] [2021-10-28 23:22:02,550 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:22:02,550 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:22:02,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:22:02,559 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:22:02,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:22:02,571 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:22:02,749 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:22:02,750 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-28 23:22:02,750 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-28 23:22:02,750 INFO L87 Difference]: Start difference. First operand 17 states and 23 transitions. cyclomatic complexity: 8 Second operand has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:22:02,776 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:22:02,776 INFO L93 Difference]: Finished difference Result 19 states and 23 transitions. [2021-10-28 23:22:02,776 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-28 23:22:02,777 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 19 states and 23 transitions. [2021-10-28 23:22:02,778 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2021-10-28 23:22:02,778 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 19 states to 19 states and 23 transitions. [2021-10-28 23:22:02,778 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 13 [2021-10-28 23:22:02,779 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 13 [2021-10-28 23:22:02,779 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 23 transitions. [2021-10-28 23:22:02,779 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-28 23:22:02,779 INFO L681 BuchiCegarLoop]: Abstraction has 19 states and 23 transitions. [2021-10-28 23:22:02,779 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states and 23 transitions. [2021-10-28 23:22:02,780 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 17. [2021-10-28 23:22:02,780 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17 states, 17 states have (on average 1.2352941176470589) internal successors, (21), 16 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:22:02,781 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 21 transitions. [2021-10-28 23:22:02,781 INFO L704 BuchiCegarLoop]: Abstraction has 17 states and 21 transitions. [2021-10-28 23:22:02,781 INFO L587 BuchiCegarLoop]: Abstraction has 17 states and 21 transitions. [2021-10-28 23:22:02,781 INFO L425 BuchiCegarLoop]: ======== Iteration 4============ [2021-10-28 23:22:02,781 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 17 states and 21 transitions. [2021-10-28 23:22:02,782 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2021-10-28 23:22:02,782 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 23:22:02,782 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 23:22:02,782 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:22:02,782 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1] [2021-10-28 23:22:02,783 INFO L791 eck$LassoCheckResult]: Stem: 226#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(16);~c~0 := 0; 227#L-1 havoc main_#res;havoc main_#t~post14, main_#t~nondet13, main_#t~mem15.base, main_#t~mem15.offset, main_#t~mem16.base, main_#t~mem16.offset, main_#t~mem17.base, main_#t~mem17.offset, main_#t~mem18.base, main_#t~mem18.offset, main_#t~mem19.base, main_#t~mem19.offset, main_#t~post20, main_~next~0.base, main_~next~0.offset, main_#t~mem21.base, main_#t~mem21.offset, main_#t~mem22.base, main_#t~mem22.offset, main_#t~mem23.base, main_#t~mem23.offset, main_#t~post24, main_~next~1.base, main_~next~1.offset, main_~#list~0.base, main_~#list~0.offset, main_~length~0;call main_~#list~0.base, main_~#list~0.offset := #Ultimate.allocOnStack(4);call write~init~$Pointer$(0, 0, main_~#list~0.base, main_~#list~0.offset, 4);main_~length~0 := 0; 236#L543-3 append_#in~plist.base, append_#in~plist.offset := main_~#list~0.base, main_~#list~0.offset;havoc append_#t~post5, append_#t~malloc6.base, append_#t~malloc6.offset, append_#t~mem7.base, append_#t~mem7.offset, append_#t~mem8.base, append_#t~mem8.offset, append_#t~ite12.base, append_#t~ite12.offset, append_#t~mem9.base, append_#t~mem9.offset, append_#t~mem10.base, append_#t~mem10.offset, append_#t~malloc11.base, append_#t~malloc11.offset, append_~plist.base, append_~plist.offset, append_~item~0.base, append_~item~0.offset;append_~plist.base, append_~plist.offset := append_#in~plist.base, append_#in~plist.offset;append_#t~post5 := ~c~0;~c~0 := 1 + append_#t~post5;havoc append_#t~post5;call append_#t~malloc6.base, append_#t~malloc6.offset := #Ultimate.allocOnHeap(8);append_~item~0.base, append_~item~0.offset := append_#t~malloc6.base, append_#t~malloc6.offset;havoc append_#t~malloc6.base, append_#t~malloc6.offset;call append_#t~mem7.base, append_#t~mem7.offset := read~$Pointer$(append_~plist.base, append_~plist.offset, 4);call write~$Pointer$(append_#t~mem7.base, append_#t~mem7.offset, append_~item~0.base, append_~item~0.offset, 4);havoc append_#t~mem7.base, append_#t~mem7.offset;call append_#t~mem8.base, append_#t~mem8.offset := read~$Pointer$(append_~item~0.base, append_~item~0.offset, 4); 228#L534 assume !(append_#t~mem8.base != 0 || append_#t~mem8.offset != 0);call append_#t~malloc11.base, append_#t~malloc11.offset := #Ultimate.allocOnHeap(8);append_#t~ite12.base, append_#t~ite12.offset := append_#t~malloc11.base, append_#t~malloc11.offset; 229#L534-2 call write~$Pointer$(append_#t~ite12.base, append_#t~ite12.offset, append_~item~0.base, 4 + append_~item~0.offset, 4);havoc append_#t~mem8.base, append_#t~mem8.offset;havoc append_#t~ite12.base, append_#t~ite12.offset;havoc append_#t~mem9.base, append_#t~mem9.offset;havoc append_#t~mem10.base, append_#t~mem10.offset;havoc append_#t~malloc11.base, append_#t~malloc11.offset;call write~$Pointer$(append_~item~0.base, append_~item~0.offset, append_~plist.base, append_~plist.offset, 4); 223#L529 main_#t~post14 := main_~length~0;main_~length~0 := 1 + main_#t~post14;havoc main_#t~post14; 233#L543-1 assume !(0 != main_#t~nondet13 && ~c~0 < 20);havoc main_#t~nondet13; 237#L543-4 assume main_~length~0 > 0; 231#L548 assume !(main_~length~0 < 0); 232#L548-2 call main_#t~mem17.base, main_#t~mem17.offset := read~$Pointer$(main_~#list~0.base, main_~#list~0.offset, 4);call main_#t~mem18.base, main_#t~mem18.offset := read~$Pointer$(main_#t~mem17.base, main_#t~mem17.offset, 4);main_~next~0.base, main_~next~0.offset := main_#t~mem18.base, main_#t~mem18.offset;havoc main_#t~mem17.base, main_#t~mem17.offset;havoc main_#t~mem18.base, main_#t~mem18.offset;call main_#t~mem19.base, main_#t~mem19.offset := read~$Pointer$(main_~#list~0.base, main_~#list~0.offset, 4);call ULTIMATE.dealloc(main_#t~mem19.base, main_#t~mem19.offset);havoc main_#t~mem19.base, main_#t~mem19.offset;call write~$Pointer$(main_~next~0.base, main_~next~0.offset, main_~#list~0.base, main_~#list~0.offset, 4);main_#t~post20 := main_~length~0;main_~length~0 := main_#t~post20 - 1;havoc main_#t~post20; 235#L556-1 [2021-10-28 23:22:02,783 INFO L793 eck$LassoCheckResult]: Loop: 235#L556-1 assume !!(main_~length~0 > 0);call main_#t~mem21.base, main_#t~mem21.offset := read~$Pointer$(main_~#list~0.base, main_~#list~0.offset, 4);call main_#t~mem22.base, main_#t~mem22.offset := read~$Pointer$(main_#t~mem21.base, main_#t~mem21.offset, 4);main_~next~1.base, main_~next~1.offset := main_#t~mem22.base, main_#t~mem22.offset;havoc main_#t~mem21.base, main_#t~mem21.offset;havoc main_#t~mem22.base, main_#t~mem22.offset;call main_#t~mem23.base, main_#t~mem23.offset := read~$Pointer$(main_~#list~0.base, main_~#list~0.offset, 4);call ULTIMATE.dealloc(main_#t~mem23.base, main_#t~mem23.offset);havoc main_#t~mem23.base, main_#t~mem23.offset;call write~$Pointer$(main_~next~1.base, main_~next~1.offset, main_~#list~0.base, main_~#list~0.offset, 4);main_#t~post24 := main_~length~0;main_~length~0 := main_#t~post24 - 1;havoc main_#t~post24; 235#L556-1 [2021-10-28 23:22:02,783 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:22:02,784 INFO L85 PathProgramCache]: Analyzing trace with hash -1985702188, now seen corresponding path program 1 times [2021-10-28 23:22:02,784 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:22:02,785 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [518683771] [2021-10-28 23:22:02,785 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:22:02,785 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:22:02,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:22:02,813 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:22:02,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:22:02,868 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:22:02,870 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:22:02,870 INFO L85 PathProgramCache]: Analyzing trace with hash 76, now seen corresponding path program 2 times [2021-10-28 23:22:02,870 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:22:02,871 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1737720879] [2021-10-28 23:22:02,871 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:22:02,871 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:22:02,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:22:02,879 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:22:02,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:22:02,898 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:22:02,898 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:22:02,898 INFO L85 PathProgramCache]: Analyzing trace with hash -1427225639, now seen corresponding path program 1 times [2021-10-28 23:22:02,898 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:22:02,899 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1482961621] [2021-10-28 23:22:02,899 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:22:02,899 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:22:02,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:22:02,959 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:22:02,959 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:22:02,959 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1482961621] [2021-10-28 23:22:02,959 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1482961621] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:22:02,960 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:22:02,960 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-28 23:22:02,960 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1675979654] [2021-10-28 23:22:03,135 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c60e424-bd7f-42e2-8db5-1551c8be1762/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Forceful destruction successful, exit code 0 [2021-10-28 23:22:03,174 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:22:03,175 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-28 23:22:03,175 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-10-28 23:22:03,175 INFO L87 Difference]: Start difference. First operand 17 states and 21 transitions. cyclomatic complexity: 6 Second operand has 5 states, 4 states have (on average 2.75) internal successors, (11), 5 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:22:03,201 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:22:03,201 INFO L93 Difference]: Finished difference Result 31 states and 37 transitions. [2021-10-28 23:22:03,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-28 23:22:03,201 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 31 states and 37 transitions. [2021-10-28 23:22:03,203 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2021-10-28 23:22:03,204 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 31 states to 25 states and 31 transitions. [2021-10-28 23:22:03,204 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 14 [2021-10-28 23:22:03,204 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 14 [2021-10-28 23:22:03,204 INFO L73 IsDeterministic]: Start isDeterministic. Operand 25 states and 31 transitions. [2021-10-28 23:22:03,204 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-28 23:22:03,204 INFO L681 BuchiCegarLoop]: Abstraction has 25 states and 31 transitions. [2021-10-28 23:22:03,205 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states and 31 transitions. [2021-10-28 23:22:03,206 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 17. [2021-10-28 23:22:03,206 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17 states, 17 states have (on average 1.1764705882352942) internal successors, (20), 16 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:22:03,207 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 20 transitions. [2021-10-28 23:22:03,207 INFO L704 BuchiCegarLoop]: Abstraction has 17 states and 20 transitions. [2021-10-28 23:22:03,207 INFO L587 BuchiCegarLoop]: Abstraction has 17 states and 20 transitions. [2021-10-28 23:22:03,207 INFO L425 BuchiCegarLoop]: ======== Iteration 5============ [2021-10-28 23:22:03,207 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 17 states and 20 transitions. [2021-10-28 23:22:03,208 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2021-10-28 23:22:03,208 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 23:22:03,208 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 23:22:03,209 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:22:03,209 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1] [2021-10-28 23:22:03,209 INFO L791 eck$LassoCheckResult]: Stem: 283#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(16);~c~0 := 0; 284#L-1 havoc main_#res;havoc main_#t~post14, main_#t~nondet13, main_#t~mem15.base, main_#t~mem15.offset, main_#t~mem16.base, main_#t~mem16.offset, main_#t~mem17.base, main_#t~mem17.offset, main_#t~mem18.base, main_#t~mem18.offset, main_#t~mem19.base, main_#t~mem19.offset, main_#t~post20, main_~next~0.base, main_~next~0.offset, main_#t~mem21.base, main_#t~mem21.offset, main_#t~mem22.base, main_#t~mem22.offset, main_#t~mem23.base, main_#t~mem23.offset, main_#t~post24, main_~next~1.base, main_~next~1.offset, main_~#list~0.base, main_~#list~0.offset, main_~length~0;call main_~#list~0.base, main_~#list~0.offset := #Ultimate.allocOnStack(4);call write~init~$Pointer$(0, 0, main_~#list~0.base, main_~#list~0.offset, 4);main_~length~0 := 0; 294#L543-3 append_#in~plist.base, append_#in~plist.offset := main_~#list~0.base, main_~#list~0.offset;havoc append_#t~post5, append_#t~malloc6.base, append_#t~malloc6.offset, append_#t~mem7.base, append_#t~mem7.offset, append_#t~mem8.base, append_#t~mem8.offset, append_#t~ite12.base, append_#t~ite12.offset, append_#t~mem9.base, append_#t~mem9.offset, append_#t~mem10.base, append_#t~mem10.offset, append_#t~malloc11.base, append_#t~malloc11.offset, append_~plist.base, append_~plist.offset, append_~item~0.base, append_~item~0.offset;append_~plist.base, append_~plist.offset := append_#in~plist.base, append_#in~plist.offset;append_#t~post5 := ~c~0;~c~0 := 1 + append_#t~post5;havoc append_#t~post5;call append_#t~malloc6.base, append_#t~malloc6.offset := #Ultimate.allocOnHeap(8);append_~item~0.base, append_~item~0.offset := append_#t~malloc6.base, append_#t~malloc6.offset;havoc append_#t~malloc6.base, append_#t~malloc6.offset;call append_#t~mem7.base, append_#t~mem7.offset := read~$Pointer$(append_~plist.base, append_~plist.offset, 4);call write~$Pointer$(append_#t~mem7.base, append_#t~mem7.offset, append_~item~0.base, append_~item~0.offset, 4);havoc append_#t~mem7.base, append_#t~mem7.offset;call append_#t~mem8.base, append_#t~mem8.offset := read~$Pointer$(append_~item~0.base, append_~item~0.offset, 4); 285#L534 assume !(append_#t~mem8.base != 0 || append_#t~mem8.offset != 0);call append_#t~malloc11.base, append_#t~malloc11.offset := #Ultimate.allocOnHeap(8);append_#t~ite12.base, append_#t~ite12.offset := append_#t~malloc11.base, append_#t~malloc11.offset; 280#L534-2 call write~$Pointer$(append_#t~ite12.base, append_#t~ite12.offset, append_~item~0.base, 4 + append_~item~0.offset, 4);havoc append_#t~mem8.base, append_#t~mem8.offset;havoc append_#t~ite12.base, append_#t~ite12.offset;havoc append_#t~mem9.base, append_#t~mem9.offset;havoc append_#t~mem10.base, append_#t~mem10.offset;havoc append_#t~malloc11.base, append_#t~malloc11.offset;call write~$Pointer$(append_~item~0.base, append_~item~0.offset, append_~plist.base, append_~plist.offset, 4); 281#L529 main_#t~post14 := main_~length~0;main_~length~0 := 1 + main_#t~post14;havoc main_#t~post14; 292#L543-1 assume !!(0 != main_#t~nondet13 && ~c~0 < 20);havoc main_#t~nondet13; 296#L543-3 append_#in~plist.base, append_#in~plist.offset := main_~#list~0.base, main_~#list~0.offset;havoc append_#t~post5, append_#t~malloc6.base, append_#t~malloc6.offset, append_#t~mem7.base, append_#t~mem7.offset, append_#t~mem8.base, append_#t~mem8.offset, append_#t~ite12.base, append_#t~ite12.offset, append_#t~mem9.base, append_#t~mem9.offset, append_#t~mem10.base, append_#t~mem10.offset, append_#t~malloc11.base, append_#t~malloc11.offset, append_~plist.base, append_~plist.offset, append_~item~0.base, append_~item~0.offset;append_~plist.base, append_~plist.offset := append_#in~plist.base, append_#in~plist.offset;append_#t~post5 := ~c~0;~c~0 := 1 + append_#t~post5;havoc append_#t~post5;call append_#t~malloc6.base, append_#t~malloc6.offset := #Ultimate.allocOnHeap(8);append_~item~0.base, append_~item~0.offset := append_#t~malloc6.base, append_#t~malloc6.offset;havoc append_#t~malloc6.base, append_#t~malloc6.offset;call append_#t~mem7.base, append_#t~mem7.offset := read~$Pointer$(append_~plist.base, append_~plist.offset, 4);call write~$Pointer$(append_#t~mem7.base, append_#t~mem7.offset, append_~item~0.base, append_~item~0.offset, 4);havoc append_#t~mem7.base, append_#t~mem7.offset;call append_#t~mem8.base, append_#t~mem8.offset := read~$Pointer$(append_~item~0.base, append_~item~0.offset, 4); 286#L534 assume !(append_#t~mem8.base != 0 || append_#t~mem8.offset != 0);call append_#t~malloc11.base, append_#t~malloc11.offset := #Ultimate.allocOnHeap(8);append_#t~ite12.base, append_#t~ite12.offset := append_#t~malloc11.base, append_#t~malloc11.offset; 287#L534-2 call write~$Pointer$(append_#t~ite12.base, append_#t~ite12.offset, append_~item~0.base, 4 + append_~item~0.offset, 4);havoc append_#t~mem8.base, append_#t~mem8.offset;havoc append_#t~ite12.base, append_#t~ite12.offset;havoc append_#t~mem9.base, append_#t~mem9.offset;havoc append_#t~mem10.base, append_#t~mem10.offset;havoc append_#t~malloc11.base, append_#t~malloc11.offset;call write~$Pointer$(append_~item~0.base, append_~item~0.offset, append_~plist.base, append_~plist.offset, 4); 290#L529 main_#t~post14 := main_~length~0;main_~length~0 := 1 + main_#t~post14;havoc main_#t~post14; 291#L543-1 assume !(0 != main_#t~nondet13 && ~c~0 < 20);havoc main_#t~nondet13; 295#L543-4 assume main_~length~0 > 0; 288#L548 assume !(main_~length~0 < 0); 289#L548-2 call main_#t~mem17.base, main_#t~mem17.offset := read~$Pointer$(main_~#list~0.base, main_~#list~0.offset, 4);call main_#t~mem18.base, main_#t~mem18.offset := read~$Pointer$(main_#t~mem17.base, main_#t~mem17.offset, 4);main_~next~0.base, main_~next~0.offset := main_#t~mem18.base, main_#t~mem18.offset;havoc main_#t~mem17.base, main_#t~mem17.offset;havoc main_#t~mem18.base, main_#t~mem18.offset;call main_#t~mem19.base, main_#t~mem19.offset := read~$Pointer$(main_~#list~0.base, main_~#list~0.offset, 4);call ULTIMATE.dealloc(main_#t~mem19.base, main_#t~mem19.offset);havoc main_#t~mem19.base, main_#t~mem19.offset;call write~$Pointer$(main_~next~0.base, main_~next~0.offset, main_~#list~0.base, main_~#list~0.offset, 4);main_#t~post20 := main_~length~0;main_~length~0 := main_#t~post20 - 1;havoc main_#t~post20; 293#L556-1 [2021-10-28 23:22:03,209 INFO L793 eck$LassoCheckResult]: Loop: 293#L556-1 assume !!(main_~length~0 > 0);call main_#t~mem21.base, main_#t~mem21.offset := read~$Pointer$(main_~#list~0.base, main_~#list~0.offset, 4);call main_#t~mem22.base, main_#t~mem22.offset := read~$Pointer$(main_#t~mem21.base, main_#t~mem21.offset, 4);main_~next~1.base, main_~next~1.offset := main_#t~mem22.base, main_#t~mem22.offset;havoc main_#t~mem21.base, main_#t~mem21.offset;havoc main_#t~mem22.base, main_#t~mem22.offset;call main_#t~mem23.base, main_#t~mem23.offset := read~$Pointer$(main_~#list~0.base, main_~#list~0.offset, 4);call ULTIMATE.dealloc(main_#t~mem23.base, main_#t~mem23.offset);havoc main_#t~mem23.base, main_#t~mem23.offset;call write~$Pointer$(main_~next~1.base, main_~next~1.offset, main_~#list~0.base, main_~#list~0.offset, 4);main_#t~post24 := main_~length~0;main_~length~0 := main_#t~post24 - 1;havoc main_#t~post24; 293#L556-1 [2021-10-28 23:22:03,210 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:22:03,210 INFO L85 PathProgramCache]: Analyzing trace with hash 1723894012, now seen corresponding path program 1 times [2021-10-28 23:22:03,210 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:22:03,210 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [90885680] [2021-10-28 23:22:03,210 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:22:03,210 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:22:03,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:22:03,267 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:22:03,267 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:22:03,267 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [90885680] [2021-10-28 23:22:03,267 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [90885680] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:22:03,267 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [698253192] [2021-10-28 23:22:03,268 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:22:03,268 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:22:03,268 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c60e424-bd7f-42e2-8db5-1551c8be1762/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:22:03,269 INFO L229 MonitoredProcess]: Starting monitored process 39 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c60e424-bd7f-42e2-8db5-1551c8be1762/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 23:22:03,291 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c60e424-bd7f-42e2-8db5-1551c8be1762/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (39)] Waiting until timeout for monitored process [2021-10-28 23:22:03,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:22:03,366 INFO L263 TraceCheckSpWp]: Trace formula consists of 192 conjuncts, 25 conjunts are in the unsatisfiable core [2021-10-28 23:22:03,367 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:22:03,483 INFO L354 Elim1Store]: treesize reduction 21, result has 47.5 percent of original size [2021-10-28 23:22:03,484 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 1 case distinctions, treesize of input 36 treesize of output 31 [2021-10-28 23:22:03,556 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 16 treesize of output 8 [2021-10-28 23:22:03,574 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:22:03,574 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [698253192] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:22:03,574 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 23:22:03,574 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 6] total 8 [2021-10-28 23:22:03,575 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [376501991] [2021-10-28 23:22:03,575 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-10-28 23:22:03,576 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:22:03,576 INFO L85 PathProgramCache]: Analyzing trace with hash 76, now seen corresponding path program 3 times [2021-10-28 23:22:03,576 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:22:03,576 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [682932490] [2021-10-28 23:22:03,576 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:22:03,576 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:22:03,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:22:03,582 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:22:03,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:22:03,587 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:22:03,768 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:22:03,769 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-28 23:22:03,769 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2021-10-28 23:22:03,769 INFO L87 Difference]: Start difference. First operand 17 states and 20 transitions. cyclomatic complexity: 5 Second operand has 8 states, 8 states have (on average 2.75) internal successors, (22), 8 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:22:03,832 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:22:03,832 INFO L93 Difference]: Finished difference Result 17 states and 18 transitions. [2021-10-28 23:22:03,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-28 23:22:03,833 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 17 states and 18 transitions. [2021-10-28 23:22:03,834 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2021-10-28 23:22:03,834 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 17 states to 17 states and 18 transitions. [2021-10-28 23:22:03,835 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 12 [2021-10-28 23:22:03,835 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 12 [2021-10-28 23:22:03,835 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 18 transitions. [2021-10-28 23:22:03,835 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-28 23:22:03,835 INFO L681 BuchiCegarLoop]: Abstraction has 17 states and 18 transitions. [2021-10-28 23:22:03,835 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states and 18 transitions. [2021-10-28 23:22:03,836 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2021-10-28 23:22:03,837 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17 states, 17 states have (on average 1.0588235294117647) internal successors, (18), 16 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:22:03,837 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 18 transitions. [2021-10-28 23:22:03,837 INFO L704 BuchiCegarLoop]: Abstraction has 17 states and 18 transitions. [2021-10-28 23:22:03,837 INFO L587 BuchiCegarLoop]: Abstraction has 17 states and 18 transitions. [2021-10-28 23:22:03,837 INFO L425 BuchiCegarLoop]: ======== Iteration 6============ [2021-10-28 23:22:03,837 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 17 states and 18 transitions. [2021-10-28 23:22:03,838 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2021-10-28 23:22:03,838 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 23:22:03,838 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 23:22:03,839 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:22:03,839 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1] [2021-10-28 23:22:03,839 INFO L791 eck$LassoCheckResult]: Stem: 375#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(16);~c~0 := 0; 376#L-1 havoc main_#res;havoc main_#t~post14, main_#t~nondet13, main_#t~mem15.base, main_#t~mem15.offset, main_#t~mem16.base, main_#t~mem16.offset, main_#t~mem17.base, main_#t~mem17.offset, main_#t~mem18.base, main_#t~mem18.offset, main_#t~mem19.base, main_#t~mem19.offset, main_#t~post20, main_~next~0.base, main_~next~0.offset, main_#t~mem21.base, main_#t~mem21.offset, main_#t~mem22.base, main_#t~mem22.offset, main_#t~mem23.base, main_#t~mem23.offset, main_#t~post24, main_~next~1.base, main_~next~1.offset, main_~#list~0.base, main_~#list~0.offset, main_~length~0;call main_~#list~0.base, main_~#list~0.offset := #Ultimate.allocOnStack(4);call write~init~$Pointer$(0, 0, main_~#list~0.base, main_~#list~0.offset, 4);main_~length~0 := 0; 385#L543-3 append_#in~plist.base, append_#in~plist.offset := main_~#list~0.base, main_~#list~0.offset;havoc append_#t~post5, append_#t~malloc6.base, append_#t~malloc6.offset, append_#t~mem7.base, append_#t~mem7.offset, append_#t~mem8.base, append_#t~mem8.offset, append_#t~ite12.base, append_#t~ite12.offset, append_#t~mem9.base, append_#t~mem9.offset, append_#t~mem10.base, append_#t~mem10.offset, append_#t~malloc11.base, append_#t~malloc11.offset, append_~plist.base, append_~plist.offset, append_~item~0.base, append_~item~0.offset;append_~plist.base, append_~plist.offset := append_#in~plist.base, append_#in~plist.offset;append_#t~post5 := ~c~0;~c~0 := 1 + append_#t~post5;havoc append_#t~post5;call append_#t~malloc6.base, append_#t~malloc6.offset := #Ultimate.allocOnHeap(8);append_~item~0.base, append_~item~0.offset := append_#t~malloc6.base, append_#t~malloc6.offset;havoc append_#t~malloc6.base, append_#t~malloc6.offset;call append_#t~mem7.base, append_#t~mem7.offset := read~$Pointer$(append_~plist.base, append_~plist.offset, 4);call write~$Pointer$(append_#t~mem7.base, append_#t~mem7.offset, append_~item~0.base, append_~item~0.offset, 4);havoc append_#t~mem7.base, append_#t~mem7.offset;call append_#t~mem8.base, append_#t~mem8.offset := read~$Pointer$(append_~item~0.base, append_~item~0.offset, 4); 377#L534 assume !(append_#t~mem8.base != 0 || append_#t~mem8.offset != 0);call append_#t~malloc11.base, append_#t~malloc11.offset := #Ultimate.allocOnHeap(8);append_#t~ite12.base, append_#t~ite12.offset := append_#t~malloc11.base, append_#t~malloc11.offset; 378#L534-2 call write~$Pointer$(append_#t~ite12.base, append_#t~ite12.offset, append_~item~0.base, 4 + append_~item~0.offset, 4);havoc append_#t~mem8.base, append_#t~mem8.offset;havoc append_#t~ite12.base, append_#t~ite12.offset;havoc append_#t~mem9.base, append_#t~mem9.offset;havoc append_#t~mem10.base, append_#t~mem10.offset;havoc append_#t~malloc11.base, append_#t~malloc11.offset;call write~$Pointer$(append_~item~0.base, append_~item~0.offset, append_~plist.base, append_~plist.offset, 4); 374#L529 main_#t~post14 := main_~length~0;main_~length~0 := 1 + main_#t~post14;havoc main_#t~post14; 383#L543-1 assume !!(0 != main_#t~nondet13 && ~c~0 < 20);havoc main_#t~nondet13; 387#L543-3 append_#in~plist.base, append_#in~plist.offset := main_~#list~0.base, main_~#list~0.offset;havoc append_#t~post5, append_#t~malloc6.base, append_#t~malloc6.offset, append_#t~mem7.base, append_#t~mem7.offset, append_#t~mem8.base, append_#t~mem8.offset, append_#t~ite12.base, append_#t~ite12.offset, append_#t~mem9.base, append_#t~mem9.offset, append_#t~mem10.base, append_#t~mem10.offset, append_#t~malloc11.base, append_#t~malloc11.offset, append_~plist.base, append_~plist.offset, append_~item~0.base, append_~item~0.offset;append_~plist.base, append_~plist.offset := append_#in~plist.base, append_#in~plist.offset;append_#t~post5 := ~c~0;~c~0 := 1 + append_#t~post5;havoc append_#t~post5;call append_#t~malloc6.base, append_#t~malloc6.offset := #Ultimate.allocOnHeap(8);append_~item~0.base, append_~item~0.offset := append_#t~malloc6.base, append_#t~malloc6.offset;havoc append_#t~malloc6.base, append_#t~malloc6.offset;call append_#t~mem7.base, append_#t~mem7.offset := read~$Pointer$(append_~plist.base, append_~plist.offset, 4);call write~$Pointer$(append_#t~mem7.base, append_#t~mem7.offset, append_~item~0.base, append_~item~0.offset, 4);havoc append_#t~mem7.base, append_#t~mem7.offset;call append_#t~mem8.base, append_#t~mem8.offset := read~$Pointer$(append_~item~0.base, append_~item~0.offset, 4); 379#L534 assume append_#t~mem8.base != 0 || append_#t~mem8.offset != 0;call append_#t~mem9.base, append_#t~mem9.offset := read~$Pointer$(append_~item~0.base, append_~item~0.offset, 4);call append_#t~mem10.base, append_#t~mem10.offset := read~$Pointer$(append_#t~mem9.base, 4 + append_#t~mem9.offset, 4);append_#t~ite12.base, append_#t~ite12.offset := append_#t~mem10.base, append_#t~mem10.offset; 371#L534-2 call write~$Pointer$(append_#t~ite12.base, append_#t~ite12.offset, append_~item~0.base, 4 + append_~item~0.offset, 4);havoc append_#t~mem8.base, append_#t~mem8.offset;havoc append_#t~ite12.base, append_#t~ite12.offset;havoc append_#t~mem9.base, append_#t~mem9.offset;havoc append_#t~mem10.base, append_#t~mem10.offset;havoc append_#t~malloc11.base, append_#t~malloc11.offset;call write~$Pointer$(append_~item~0.base, append_~item~0.offset, append_~plist.base, append_~plist.offset, 4); 372#L529 main_#t~post14 := main_~length~0;main_~length~0 := 1 + main_#t~post14;havoc main_#t~post14; 382#L543-1 assume !(0 != main_#t~nondet13 && ~c~0 < 20);havoc main_#t~nondet13; 386#L543-4 assume main_~length~0 > 0; 380#L548 assume !(main_~length~0 < 0); 381#L548-2 call main_#t~mem17.base, main_#t~mem17.offset := read~$Pointer$(main_~#list~0.base, main_~#list~0.offset, 4);call main_#t~mem18.base, main_#t~mem18.offset := read~$Pointer$(main_#t~mem17.base, main_#t~mem17.offset, 4);main_~next~0.base, main_~next~0.offset := main_#t~mem18.base, main_#t~mem18.offset;havoc main_#t~mem17.base, main_#t~mem17.offset;havoc main_#t~mem18.base, main_#t~mem18.offset;call main_#t~mem19.base, main_#t~mem19.offset := read~$Pointer$(main_~#list~0.base, main_~#list~0.offset, 4);call ULTIMATE.dealloc(main_#t~mem19.base, main_#t~mem19.offset);havoc main_#t~mem19.base, main_#t~mem19.offset;call write~$Pointer$(main_~next~0.base, main_~next~0.offset, main_~#list~0.base, main_~#list~0.offset, 4);main_#t~post20 := main_~length~0;main_~length~0 := main_#t~post20 - 1;havoc main_#t~post20; 384#L556-1 [2021-10-28 23:22:03,839 INFO L793 eck$LassoCheckResult]: Loop: 384#L556-1 assume !!(main_~length~0 > 0);call main_#t~mem21.base, main_#t~mem21.offset := read~$Pointer$(main_~#list~0.base, main_~#list~0.offset, 4);call main_#t~mem22.base, main_#t~mem22.offset := read~$Pointer$(main_#t~mem21.base, main_#t~mem21.offset, 4);main_~next~1.base, main_~next~1.offset := main_#t~mem22.base, main_#t~mem22.offset;havoc main_#t~mem21.base, main_#t~mem21.offset;havoc main_#t~mem22.base, main_#t~mem22.offset;call main_#t~mem23.base, main_#t~mem23.offset := read~$Pointer$(main_~#list~0.base, main_~#list~0.offset, 4);call ULTIMATE.dealloc(main_#t~mem23.base, main_#t~mem23.offset);havoc main_#t~mem23.base, main_#t~mem23.offset;call write~$Pointer$(main_~next~1.base, main_~next~1.offset, main_~#list~0.base, main_~#list~0.offset, 4);main_#t~post24 := main_~length~0;main_~length~0 := main_#t~post24 - 1;havoc main_#t~post24; 384#L556-1 [2021-10-28 23:22:03,840 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:22:03,840 INFO L85 PathProgramCache]: Analyzing trace with hash -51113350, now seen corresponding path program 1 times [2021-10-28 23:22:03,840 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:22:03,840 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1938988495] [2021-10-28 23:22:03,840 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:22:03,841 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:22:03,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:22:03,884 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:22:03,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:22:03,927 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:22:03,928 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:22:03,928 INFO L85 PathProgramCache]: Analyzing trace with hash 76, now seen corresponding path program 4 times [2021-10-28 23:22:03,928 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:22:03,928 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1749532229] [2021-10-28 23:22:03,928 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:22:03,928 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:22:03,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:22:03,933 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:22:03,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:22:03,937 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:22:03,938 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:22:03,938 INFO L85 PathProgramCache]: Analyzing trace with hash -1584513805, now seen corresponding path program 1 times [2021-10-28 23:22:03,938 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:22:03,938 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1742438259] [2021-10-28 23:22:03,938 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:22:03,939 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:22:03,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:22:03,983 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:22:04,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:22:04,027 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:22:33,961 WARN L207 SmtUtils]: Spent 29.71 s on a formula simplification. DAG size of input: 387 DAG size of output: 315 [2021-10-28 23:22:42,822 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 23:22:42,822 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 23:22:42,822 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 23:22:42,822 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 23:22:42,823 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-28 23:22:42,823 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:22:42,823 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 23:22:42,823 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 23:22:42,823 INFO L133 ssoRankerPreferences]: Filename of dumped script: test-0232_1-1.i_Iteration6_Lasso [2021-10-28 23:22:42,823 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 23:22:42,823 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 23:22:42,830 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:22:42,834 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:22:42,836 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:22:42,838 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:22:42,841 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:22:42,844 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:22:42,846 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:22:42,848 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:22:42,850 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:22:44,494 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer has thrown an exception: java.lang.AssertionError: MapEliminator tries to combine Int and (Array Int Int) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.mapelimination.MapEliminator.indexEqualityInequalityImpliesValueEquality(MapEliminator.java:850) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.mapelimination.MapEliminator.replaceSelectStoreTerm(MapEliminator.java:592) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.mapelimination.MapEliminator.replaceStoreTerms(MapEliminator.java:542) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.mapelimination.MapEliminator.getRewrittenTransFormula(MapEliminator.java:330) at de.uni_freiburg.informatik.ultimate.lassoranker.preprocessors.MapEliminationLassoPreprocessor.process(MapEliminationLassoPreprocessor.java:109) at de.uni_freiburg.informatik.ultimate.lassoranker.variables.LassoBuilder.applyPreprocessor(LassoBuilder.java:154) at de.uni_freiburg.informatik.ultimate.lassoranker.variables.LassoBuilder.preprocess(LassoBuilder.java:262) at de.uni_freiburg.informatik.ultimate.lassoranker.LassoAnalysis.preprocess(LassoAnalysis.java:280) at de.uni_freiburg.informatik.ultimate.lassoranker.LassoAnalysis.(LassoAnalysis.java:229) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.LassoCheck.synthesize(LassoCheck.java:609) 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) [2021-10-28 23:22:44,497 INFO L168 Benchmark]: Toolchain (without parser) took 63225.16 ms. Allocated memory was 100.7 MB in the beginning and 232.8 MB in the end (delta: 132.1 MB). Free memory was 58.3 MB in the beginning and 98.0 MB in the end (delta: -39.7 MB). Peak memory consumption was 126.8 MB. Max. memory is 16.1 GB. [2021-10-28 23:22:44,498 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 100.7 MB. Free memory is still 76.2 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 23:22:44,498 INFO L168 Benchmark]: CACSL2BoogieTranslator took 505.79 ms. Allocated memory is still 100.7 MB. Free memory was 58.1 MB in the beginning and 69.7 MB in the end (delta: -11.7 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-28 23:22:44,498 INFO L168 Benchmark]: Boogie Procedure Inliner took 94.06 ms. Allocated memory is still 100.7 MB. Free memory was 69.7 MB in the beginning and 67.6 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-28 23:22:44,499 INFO L168 Benchmark]: Boogie Preprocessor took 49.22 ms. Allocated memory is still 100.7 MB. Free memory was 67.6 MB in the beginning and 66.2 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-28 23:22:44,499 INFO L168 Benchmark]: RCFGBuilder took 551.29 ms. Allocated memory is still 100.7 MB. Free memory was 66.2 MB in the beginning and 52.8 MB in the end (delta: 13.4 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-10-28 23:22:44,500 INFO L168 Benchmark]: BuchiAutomizer took 62005.23 ms. Allocated memory was 100.7 MB in the beginning and 232.8 MB in the end (delta: 132.1 MB). Free memory was 52.8 MB in the beginning and 98.0 MB in the end (delta: -45.2 MB). Peak memory consumption was 124.6 MB. Max. memory is 16.1 GB. [2021-10-28 23:22:44,502 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 100.7 MB. Free memory is still 76.2 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 505.79 ms. Allocated memory is still 100.7 MB. Free memory was 58.1 MB in the beginning and 69.7 MB in the end (delta: -11.7 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 94.06 ms. Allocated memory is still 100.7 MB. Free memory was 69.7 MB in the beginning and 67.6 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 49.22 ms. Allocated memory is still 100.7 MB. Free memory was 67.6 MB in the beginning and 66.2 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 551.29 ms. Allocated memory is still 100.7 MB. Free memory was 66.2 MB in the beginning and 52.8 MB in the end (delta: 13.4 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 62005.23 ms. Allocated memory was 100.7 MB in the beginning and 232.8 MB in the end (delta: 132.1 MB). Free memory was 52.8 MB in the beginning and 98.0 MB in the end (delta: -45.2 MB). Peak memory consumption was 124.6 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer: - ExceptionOrErrorResult: AssertionError: MapEliminator tries to combine Int and (Array Int Int) de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer: AssertionError: MapEliminator tries to combine Int and (Array Int Int): de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.mapelimination.MapEliminator.indexEqualityInequalityImpliesValueEquality(MapEliminator.java:850) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2021-10-28 23:22:44,541 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c60e424-bd7f-42e2-8db5-1551c8be1762/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (39)] Forceful destruction successful, exit code 0 [2021-10-28 23:22:44,754 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c60e424-bd7f-42e2-8db5-1551c8be1762/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...