./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-memory-alloca/Velroyen-alloca.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 7b2dab56 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_141f002d-16bf-4622-858f-29999cafe17c/bin/uautomizer-Z5i5R5N3CC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_141f002d-16bf-4622-858f-29999cafe17c/bin/uautomizer-Z5i5R5N3CC/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_141f002d-16bf-4622-858f-29999cafe17c/bin/uautomizer-Z5i5R5N3CC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_141f002d-16bf-4622-858f-29999cafe17c/bin/uautomizer-Z5i5R5N3CC/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-memory-alloca/Velroyen-alloca.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_141f002d-16bf-4622-858f-29999cafe17c/bin/uautomizer-Z5i5R5N3CC/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_141f002d-16bf-4622-858f-29999cafe17c/bin/uautomizer-Z5i5R5N3CC --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 2f8c9504db0ceae8da468539322e1d0ba6c4e9f7 .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM) --- Real Ultimate output --- This is Ultimate 0.2.0-7b2dab5 [2021-10-11 00:30:49,853 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-11 00:30:49,856 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-11 00:30:49,909 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-11 00:30:49,909 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-11 00:30:49,914 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-11 00:30:49,917 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-11 00:30:49,920 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-11 00:30:49,924 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-11 00:30:49,929 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-11 00:30:49,930 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-11 00:30:49,931 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-11 00:30:49,932 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-11 00:30:49,935 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-11 00:30:49,936 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-11 00:30:49,938 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-11 00:30:49,939 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-11 00:30:49,943 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-11 00:30:49,945 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-11 00:30:49,953 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-11 00:30:49,955 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-11 00:30:49,956 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-11 00:30:49,959 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-11 00:30:49,960 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-11 00:30:49,969 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-11 00:30:49,969 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-11 00:30:49,970 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-11 00:30:49,972 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-11 00:30:49,972 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-11 00:30:49,974 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-11 00:30:49,974 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-11 00:30:49,975 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-11 00:30:49,977 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-11 00:30:49,978 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-11 00:30:49,979 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-11 00:30:49,979 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-11 00:30:49,980 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-11 00:30:49,980 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-11 00:30:49,980 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-11 00:30:49,981 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-11 00:30:49,982 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-11 00:30:49,984 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_141f002d-16bf-4622-858f-29999cafe17c/bin/uautomizer-Z5i5R5N3CC/config/svcomp-Termination-64bit-Automizer_Default.epf [2021-10-11 00:30:50,022 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-11 00:30:50,022 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-11 00:30:50,024 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-11 00:30:50,024 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-11 00:30:50,031 INFO L138 SettingsManager]: * Use SBE=true [2021-10-11 00:30:50,031 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-10-11 00:30:50,031 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-10-11 00:30:50,031 INFO L138 SettingsManager]: * Use old map elimination=false [2021-10-11 00:30:50,032 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-10-11 00:30:50,032 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-10-11 00:30:50,033 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-10-11 00:30:50,033 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-11 00:30:50,033 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-11 00:30:50,034 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-11 00:30:50,034 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-11 00:30:50,034 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-10-11 00:30:50,034 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-10-11 00:30:50,034 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-10-11 00:30:50,035 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-11 00:30:50,035 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-10-11 00:30:50,035 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-11 00:30:50,035 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-10-11 00:30:50,036 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-11 00:30:50,036 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-11 00:30:50,036 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-11 00:30:50,036 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-11 00:30:50,036 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-11 00:30:50,038 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-10-11 00:30:50,039 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_141f002d-16bf-4622-858f-29999cafe17c/bin/uautomizer-Z5i5R5N3CC/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_141f002d-16bf-4622-858f-29999cafe17c/bin/uautomizer-Z5i5R5N3CC Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2f8c9504db0ceae8da468539322e1d0ba6c4e9f7 [2021-10-11 00:30:50,313 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-11 00:30:50,343 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-11 00:30:50,345 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-11 00:30:50,346 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-11 00:30:50,347 INFO L275 PluginConnector]: CDTParser initialized [2021-10-11 00:30:50,348 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_141f002d-16bf-4622-858f-29999cafe17c/bin/uautomizer-Z5i5R5N3CC/../../sv-benchmarks/c/termination-memory-alloca/Velroyen-alloca.i [2021-10-11 00:30:50,420 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_141f002d-16bf-4622-858f-29999cafe17c/bin/uautomizer-Z5i5R5N3CC/data/8b1592b00/44b51e27dca74833b8025d07db8e7d5c/FLAG70bf3b870 [2021-10-11 00:30:51,031 INFO L306 CDTParser]: Found 1 translation units. [2021-10-11 00:30:51,032 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_141f002d-16bf-4622-858f-29999cafe17c/sv-benchmarks/c/termination-memory-alloca/Velroyen-alloca.i [2021-10-11 00:30:51,047 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_141f002d-16bf-4622-858f-29999cafe17c/bin/uautomizer-Z5i5R5N3CC/data/8b1592b00/44b51e27dca74833b8025d07db8e7d5c/FLAG70bf3b870 [2021-10-11 00:30:51,317 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_141f002d-16bf-4622-858f-29999cafe17c/bin/uautomizer-Z5i5R5N3CC/data/8b1592b00/44b51e27dca74833b8025d07db8e7d5c [2021-10-11 00:30:51,319 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-11 00:30:51,321 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-11 00:30:51,323 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-11 00:30:51,323 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-11 00:30:51,326 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-11 00:30:51,327 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 12:30:51" (1/1) ... [2021-10-11 00:30:51,329 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1822d2a3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:30:51, skipping insertion in model container [2021-10-11 00:30:51,329 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 12:30:51" (1/1) ... [2021-10-11 00:30:51,336 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-11 00:30:51,379 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-11 00:30:51,770 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 00:30:51,785 INFO L203 MainTranslator]: Completed pre-run [2021-10-11 00:30:51,829 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 00:30:51,875 INFO L208 MainTranslator]: Completed translation [2021-10-11 00:30:51,876 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:30:51 WrapperNode [2021-10-11 00:30:51,876 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-11 00:30:51,877 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-11 00:30:51,878 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-11 00:30:51,878 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-11 00:30:51,886 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:30:51" (1/1) ... [2021-10-11 00:30:51,911 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:30:51" (1/1) ... [2021-10-11 00:30:51,937 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-11 00:30:51,940 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-11 00:30:51,940 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-11 00:30:51,941 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-11 00:30:51,948 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:30:51" (1/1) ... [2021-10-11 00:30:51,948 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:30:51" (1/1) ... [2021-10-11 00:30:51,951 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:30:51" (1/1) ... [2021-10-11 00:30:51,951 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:30:51" (1/1) ... [2021-10-11 00:30:51,955 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:30:51" (1/1) ... [2021-10-11 00:30:51,959 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:30:51" (1/1) ... [2021-10-11 00:30:51,961 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:30:51" (1/1) ... [2021-10-11 00:30:51,963 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-11 00:30:51,964 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-11 00:30:51,964 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-11 00:30:51,964 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-11 00:30:51,965 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:30:51" (1/1) ... No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_141f002d-16bf-4622-858f-29999cafe17c/bin/uautomizer-Z5i5R5N3CC/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-11 00:30:52,042 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-10-11 00:30:52,042 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-10-11 00:30:52,042 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-11 00:30:52,042 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-11 00:30:52,043 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-11 00:30:52,044 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-11 00:30:52,363 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-11 00:30:52,366 INFO L299 CfgBuilder]: Removed 5 assume(true) statements. [2021-10-11 00:30:52,368 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 12:30:52 BoogieIcfgContainer [2021-10-11 00:30:52,368 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-11 00:30:52,369 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-10-11 00:30:52,369 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-10-11 00:30:52,373 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-10-11 00:30:52,383 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-11 00:30:52,383 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 11.10 12:30:51" (1/3) ... [2021-10-11 00:30:52,385 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@52902470 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 11.10 12:30:52, skipping insertion in model container [2021-10-11 00:30:52,385 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-11 00:30:52,385 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:30:51" (2/3) ... [2021-10-11 00:30:52,388 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@52902470 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 11.10 12:30:52, skipping insertion in model container [2021-10-11 00:30:52,388 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-11 00:30:52,389 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 12:30:52" (3/3) ... [2021-10-11 00:30:52,390 INFO L389 chiAutomizerObserver]: Analyzing ICFG Velroyen-alloca.i [2021-10-11 00:30:52,437 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-10-11 00:30:52,438 INFO L360 BuchiCegarLoop]: Hoare is false [2021-10-11 00:30:52,438 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-10-11 00:30:52,438 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-11 00:30:52,438 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-11 00:30:52,438 INFO L364 BuchiCegarLoop]: Difference is false [2021-10-11 00:30:52,438 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-11 00:30:52,438 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-10-11 00:30:52,451 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 12 states. [2021-10-11 00:30:52,468 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2021-10-11 00:30:52,468 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-11 00:30:52,468 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-11 00:30:52,475 INFO L853 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-10-11 00:30:52,475 INFO L854 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2021-10-11 00:30:52,475 INFO L427 BuchiCegarLoop]: ======== Iteration 1============ [2021-10-11 00:30:52,475 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 12 states. [2021-10-11 00:30:52,476 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2021-10-11 00:30:52,476 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-11 00:30:52,477 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-11 00:30:52,477 INFO L853 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-10-11 00:30:52,477 INFO L854 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2021-10-11 00:30:52,484 INFO L794 eck$LassoCheckResult]: Stem: 7#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 3#L-1true havoc main_#res;havoc main_#t~malloc2.base, main_#t~malloc2.offset, main_#t~nondet3, main_#t~mem5, main_#t~mem6, main_#t~short7, main_#t~mem8, main_#t~mem9, main_#t~mem10, main_#t~mem4, main_~x~0.base, main_~x~0.offset;call main_#t~malloc2.base, main_#t~malloc2.offset := #Ultimate.allocOnStack(4);main_~x~0.base, main_~x~0.offset := main_#t~malloc2.base, main_#t~malloc2.offset;call write~int(main_#t~nondet3, main_~x~0.base, main_~x~0.offset, 4);havoc main_#t~nondet3; 14#L552-3true [2021-10-11 00:30:52,485 INFO L796 eck$LassoCheckResult]: Loop: 14#L552-3true call main_#t~mem4 := read~int(main_~x~0.base, main_~x~0.offset, 4); 11#L551-1true assume !!(0 != main_#t~mem4);havoc main_#t~mem4;call main_#t~mem5 := read~int(main_~x~0.base, main_~x~0.offset, 4);main_#t~short7 := -5 <= main_#t~mem5; 8#L552true assume !main_#t~short7; 12#L552-2true assume !main_#t~short7;havoc main_#t~mem6;havoc main_#t~short7;havoc main_#t~mem5;call write~int(0, main_~x~0.base, main_~x~0.offset, 4); 14#L552-3true [2021-10-11 00:30:52,490 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:30:52,491 INFO L82 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2021-10-11 00:30:52,499 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:30:52,500 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [418482532] [2021-10-11 00:30:52,500 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:30:52,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 00:30:52,597 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 00:30:52,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 00:30:52,611 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 00:30:52,628 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-11 00:30:52,630 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:30:52,630 INFO L82 PathProgramCache]: Analyzing trace with hash 1144151, now seen corresponding path program 1 times [2021-10-11 00:30:52,631 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:30:52,631 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [149593967] [2021-10-11 00:30:52,631 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:30:52,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 00:30:52,643 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 00:30:52,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 00:30:52,652 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 00:30:52,660 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-11 00:30:52,663 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:30:52,665 INFO L82 PathProgramCache]: Analyzing trace with hash 889571353, now seen corresponding path program 1 times [2021-10-11 00:30:52,665 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:30:52,666 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1286550004] [2021-10-11 00:30:52,666 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:30:52,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 00:30:52,700 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 00:30:52,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 00:30:52,728 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 00:30:52,735 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-11 00:30:53,008 WARN L197 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 38 [2021-10-11 00:30:53,078 INFO L210 LassoAnalysis]: Preferences: [2021-10-11 00:30:53,078 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-11 00:30:53,079 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-11 00:30:53,079 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-11 00:30:53,079 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-11 00:30:53,079 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-11 00:30:53,079 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-11 00:30:53,079 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-11 00:30:53,080 INFO L133 ssoRankerPreferences]: Filename of dumped script: Velroyen-alloca.i_Iteration1_Lasso [2021-10-11 00:30:53,080 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-11 00:30:53,080 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2021-10-11 00:30:53,098 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-11 00:30:53,104 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-11 00:30:53,107 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-11 00:30:53,110 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-11 00:30:53,113 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-11 00:30:53,116 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-11 00:30:53,120 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-11 00:30:53,123 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-11 00:30:53,126 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-11 00:30:53,130 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-11 00:30:53,212 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-11 00:30:53,215 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-11 00:30:53,218 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-11 00:30:53,221 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-11 00:30:53,224 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-11 00:30:53,445 INFO L292 LassoAnalysis]: Preprocessing complete. [2021-10-11 00:30:53,449 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_141f002d-16bf-4622-858f-29999cafe17c/bin/uautomizer-Z5i5R5N3CC/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-11 00:30:53,465 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2021-10-11 00:30:53,467 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-11 00:30:53,468 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-11 00:30:53,468 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-11 00:30:53,468 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-11 00:30:53,468 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-11 00:30:53,470 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-11 00:30:53,471 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-11 00:30:53,485 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_141f002d-16bf-4622-858f-29999cafe17c/bin/uautomizer-Z5i5R5N3CC/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-11 00:30:53,525 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2021-10-11 00:30:53,527 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-11 00:30:53,527 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-11 00:30:53,527 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-11 00:30:53,527 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-11 00:30:53,527 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-11 00:30:53,529 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-11 00:30:53,529 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-11 00:30:53,542 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_141f002d-16bf-4622-858f-29999cafe17c/bin/uautomizer-Z5i5R5N3CC/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-11 00:30:53,582 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2021-10-11 00:30:53,584 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-11 00:30:53,584 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-11 00:30:53,584 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-11 00:30:53,584 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-11 00:30:53,584 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-11 00:30:53,585 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-11 00:30:53,585 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-11 00:30:53,607 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_141f002d-16bf-4622-858f-29999cafe17c/bin/uautomizer-Z5i5R5N3CC/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-11 00:30:53,644 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2021-10-11 00:30:53,646 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-11 00:30:53,646 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-11 00:30:53,646 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-11 00:30:53,646 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-11 00:30:53,646 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-11 00:30:53,648 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-11 00:30:53,648 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-11 00:30:53,673 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_141f002d-16bf-4622-858f-29999cafe17c/bin/uautomizer-Z5i5R5N3CC/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-11 00:30:53,712 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2021-10-11 00:30:53,714 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-11 00:30:53,714 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-11 00:30:53,714 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-11 00:30:53,714 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-11 00:30:53,714 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-11 00:30:53,715 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-11 00:30:53,715 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-11 00:30:53,725 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_141f002d-16bf-4622-858f-29999cafe17c/bin/uautomizer-Z5i5R5N3CC/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-11 00:30:53,762 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2021-10-11 00:30:53,764 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-11 00:30:53,764 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-11 00:30:53,764 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-11 00:30:53,765 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-11 00:30:53,770 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-11 00:30:53,770 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-11 00:30:53,781 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_141f002d-16bf-4622-858f-29999cafe17c/bin/uautomizer-Z5i5R5N3CC/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-11 00:30:53,820 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2021-10-11 00:30:53,822 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-11 00:30:53,822 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-11 00:30:53,822 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-11 00:30:53,822 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-11 00:30:53,823 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-11 00:30:53,823 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-11 00:30:53,823 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-11 00:30:53,837 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_141f002d-16bf-4622-858f-29999cafe17c/bin/uautomizer-Z5i5R5N3CC/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-11 00:30:53,874 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2021-10-11 00:30:53,876 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-11 00:30:53,876 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-11 00:30:53,876 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-11 00:30:53,876 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-11 00:30:53,881 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-11 00:30:53,881 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-11 00:30:53,892 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_141f002d-16bf-4622-858f-29999cafe17c/bin/uautomizer-Z5i5R5N3CC/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-11 00:30:53,930 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2021-10-11 00:30:53,931 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-11 00:30:53,931 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-11 00:30:53,931 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-11 00:30:53,932 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-11 00:30:53,935 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-11 00:30:53,935 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-11 00:30:53,945 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_141f002d-16bf-4622-858f-29999cafe17c/bin/uautomizer-Z5i5R5N3CC/z3 Starting monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-11 00:30:53,986 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2021-10-11 00:30:53,988 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-11 00:30:53,988 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-11 00:30:53,988 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-11 00:30:53,988 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-11 00:30:54,001 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-11 00:30:54,001 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-11 00:30:54,023 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_141f002d-16bf-4622-858f-29999cafe17c/bin/uautomizer-Z5i5R5N3CC/z3 Starting monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-11 00:30:54,062 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2021-10-11 00:30:54,064 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-11 00:30:54,064 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-11 00:30:54,064 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-11 00:30:54,064 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-11 00:30:54,069 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-11 00:30:54,070 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-11 00:30:54,087 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-11 00:30:54,102 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2021-10-11 00:30:54,102 INFO L444 ModelExtractionUtils]: 2 out of 7 variables were initially zero. Simplification set additionally 3 variables to zero. No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_141f002d-16bf-4622-858f-29999cafe17c/bin/uautomizer-Z5i5R5N3CC/z3 Starting monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-11 00:30:54,110 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... Waiting until toolchain timeout for monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-11 00:30:54,138 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2021-10-11 00:30:54,138 INFO L510 LassoAnalysis]: Proved termination. [2021-10-11 00:30:54,138 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select (select #memory_int ULTIMATE.start_main_~x~0.base) ULTIMATE.start_main_~x~0.offset)_1) = -1*v_rep(select (select #memory_int ULTIMATE.start_main_~x~0.base) ULTIMATE.start_main_~x~0.offset)_1 Supporting invariants [] [2021-10-11 00:30:54,179 INFO L297 tatePredicateManager]: 3 out of 3 supporting invariants were superfluous and have been removed [2021-10-11 00:30:54,203 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:30:54,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:30:54,217 INFO L263 TraceCheckSpWp]: Trace formula consists of 25 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-11 00:30:54,218 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 00:30:54,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:30:54,233 INFO L263 TraceCheckSpWp]: Trace formula consists of 23 conjuncts, 6 conjunts are in the unsatisfiable core [2021-10-11 00:30:54,233 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 00:30:54,251 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-10-11 00:30:54,330 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 00:30:54,350 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 [2021-10-11 00:30:54,351 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 12 states. Second operand 5 states. [2021-10-11 00:30:54,447 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 12 states.. Second operand 5 states. Result 42 states and 56 transitions. Complement of second has 10 states. [2021-10-11 00:30:54,448 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 6 states 1 stem states 3 non-accepting loop states 1 accepting loop states [2021-10-11 00:30:54,449 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-10-11 00:30:54,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 21 transitions. [2021-10-11 00:30:54,451 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 21 transitions. Stem has 2 letters. Loop has 4 letters. [2021-10-11 00:30:54,452 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-11 00:30:54,453 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 21 transitions. Stem has 6 letters. Loop has 4 letters. [2021-10-11 00:30:54,453 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-11 00:30:54,453 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 21 transitions. Stem has 2 letters. Loop has 8 letters. [2021-10-11 00:30:54,453 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-11 00:30:54,454 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 42 states and 56 transitions. [2021-10-11 00:30:54,457 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2021-10-11 00:30:54,461 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 42 states to 23 states and 35 transitions. [2021-10-11 00:30:54,462 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 16 [2021-10-11 00:30:54,463 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 17 [2021-10-11 00:30:54,463 INFO L73 IsDeterministic]: Start isDeterministic. Operand 23 states and 35 transitions. [2021-10-11 00:30:54,464 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-11 00:30:54,464 INFO L692 BuchiCegarLoop]: Abstraction has 23 states and 35 transitions. [2021-10-11 00:30:54,476 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states and 35 transitions. [2021-10-11 00:30:54,482 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 20. [2021-10-11 00:30:54,482 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2021-10-11 00:30:54,483 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 29 transitions. [2021-10-11 00:30:54,484 INFO L715 BuchiCegarLoop]: Abstraction has 20 states and 29 transitions. [2021-10-11 00:30:54,484 INFO L595 BuchiCegarLoop]: Abstraction has 20 states and 29 transitions. [2021-10-11 00:30:54,484 INFO L427 BuchiCegarLoop]: ======== Iteration 2============ [2021-10-11 00:30:54,484 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 20 states and 29 transitions. [2021-10-11 00:30:54,485 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2021-10-11 00:30:54,485 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-11 00:30:54,485 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-11 00:30:54,486 INFO L853 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2021-10-11 00:30:54,486 INFO L854 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2021-10-11 00:30:54,486 INFO L794 eck$LassoCheckResult]: Stem: 123#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 116#L-1 havoc main_#res;havoc main_#t~malloc2.base, main_#t~malloc2.offset, main_#t~nondet3, main_#t~mem5, main_#t~mem6, main_#t~short7, main_#t~mem8, main_#t~mem9, main_#t~mem10, main_#t~mem4, main_~x~0.base, main_~x~0.offset;call main_#t~malloc2.base, main_#t~malloc2.offset := #Ultimate.allocOnStack(4);main_~x~0.base, main_~x~0.offset := main_#t~malloc2.base, main_#t~malloc2.offset;call write~int(main_#t~nondet3, main_~x~0.base, main_~x~0.offset, 4);havoc main_#t~nondet3; 117#L552-3 call main_#t~mem4 := read~int(main_~x~0.base, main_~x~0.offset, 4); 129#L551-1 assume !!(0 != main_#t~mem4);havoc main_#t~mem4;call main_#t~mem5 := read~int(main_~x~0.base, main_~x~0.offset, 4);main_#t~short7 := -5 <= main_#t~mem5; 130#L552 assume main_#t~short7;call main_#t~mem6 := read~int(main_~x~0.base, main_~x~0.offset, 4);main_#t~short7 := main_#t~mem6 <= 35; 125#L552-2 [2021-10-11 00:30:54,486 INFO L796 eck$LassoCheckResult]: Loop: 125#L552-2 assume !main_#t~short7;havoc main_#t~mem6;havoc main_#t~short7;havoc main_#t~mem5;call write~int(0, main_~x~0.base, main_~x~0.offset, 4); 128#L552-3 call main_#t~mem4 := read~int(main_~x~0.base, main_~x~0.offset, 4); 133#L551-1 assume !!(0 != main_#t~mem4);havoc main_#t~mem4;call main_#t~mem5 := read~int(main_~x~0.base, main_~x~0.offset, 4);main_#t~short7 := -5 <= main_#t~mem5; 124#L552 assume !main_#t~short7; 125#L552-2 [2021-10-11 00:30:54,486 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:30:54,487 INFO L82 PathProgramCache]: Analyzing trace with hash 28695847, now seen corresponding path program 1 times [2021-10-11 00:30:54,487 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:30:54,487 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1755068961] [2021-10-11 00:30:54,487 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:30:54,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 00:30:54,499 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 00:30:54,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 00:30:54,512 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 00:30:54,515 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-11 00:30:54,516 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:30:54,516 INFO L82 PathProgramCache]: Analyzing trace with hash 1943531, now seen corresponding path program 2 times [2021-10-11 00:30:54,516 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:30:54,516 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1675547988] [2021-10-11 00:30:54,517 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:30:54,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:30:54,558 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 00:30:54,558 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1675547988] [2021-10-11 00:30:54,559 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 00:30:54,559 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-11 00:30:54,559 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1090388245] [2021-10-11 00:30:54,562 INFO L811 eck$LassoCheckResult]: loop already infeasible [2021-10-11 00:30:54,562 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-11 00:30:54,564 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-11 00:30:54,565 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-11 00:30:54,566 INFO L87 Difference]: Start difference. First operand 20 states and 29 transitions. cyclomatic complexity: 11 Second operand 4 states. [2021-10-11 00:30:54,595 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:30:54,595 INFO L93 Difference]: Finished difference Result 25 states and 32 transitions. [2021-10-11 00:30:54,596 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-11 00:30:54,596 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 25 states and 32 transitions. [2021-10-11 00:30:54,598 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2021-10-11 00:30:54,598 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 25 states to 20 states and 27 transitions. [2021-10-11 00:30:54,599 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 14 [2021-10-11 00:30:54,599 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 14 [2021-10-11 00:30:54,599 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 27 transitions. [2021-10-11 00:30:54,599 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-11 00:30:54,599 INFO L692 BuchiCegarLoop]: Abstraction has 20 states and 27 transitions. [2021-10-11 00:30:54,599 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states and 27 transitions. [2021-10-11 00:30:54,601 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20. [2021-10-11 00:30:54,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2021-10-11 00:30:54,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 27 transitions. [2021-10-11 00:30:54,602 INFO L715 BuchiCegarLoop]: Abstraction has 20 states and 27 transitions. [2021-10-11 00:30:54,602 INFO L595 BuchiCegarLoop]: Abstraction has 20 states and 27 transitions. [2021-10-11 00:30:54,602 INFO L427 BuchiCegarLoop]: ======== Iteration 3============ [2021-10-11 00:30:54,602 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 20 states and 27 transitions. [2021-10-11 00:30:54,603 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2021-10-11 00:30:54,603 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-11 00:30:54,603 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-11 00:30:54,603 INFO L853 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2021-10-11 00:30:54,604 INFO L854 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2021-10-11 00:30:54,604 INFO L794 eck$LassoCheckResult]: Stem: 177#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 170#L-1 havoc main_#res;havoc main_#t~malloc2.base, main_#t~malloc2.offset, main_#t~nondet3, main_#t~mem5, main_#t~mem6, main_#t~short7, main_#t~mem8, main_#t~mem9, main_#t~mem10, main_#t~mem4, main_~x~0.base, main_~x~0.offset;call main_#t~malloc2.base, main_#t~malloc2.offset := #Ultimate.allocOnStack(4);main_~x~0.base, main_~x~0.offset := main_#t~malloc2.base, main_#t~malloc2.offset;call write~int(main_#t~nondet3, main_~x~0.base, main_~x~0.offset, 4);havoc main_#t~nondet3; 171#L552-3 call main_#t~mem4 := read~int(main_~x~0.base, main_~x~0.offset, 4); 184#L551-1 assume !!(0 != main_#t~mem4);havoc main_#t~mem4;call main_#t~mem5 := read~int(main_~x~0.base, main_~x~0.offset, 4);main_#t~short7 := -5 <= main_#t~mem5; 178#L552 assume main_#t~short7;call main_#t~mem6 := read~int(main_~x~0.base, main_~x~0.offset, 4);main_#t~short7 := main_#t~mem6 <= 35; 180#L552-2 [2021-10-11 00:30:54,604 INFO L796 eck$LassoCheckResult]: Loop: 180#L552-2 assume main_#t~short7;havoc main_#t~mem6;havoc main_#t~short7;havoc main_#t~mem5;call main_#t~mem8 := read~int(main_~x~0.base, main_~x~0.offset, 4); 187#L553 assume main_#t~mem8 < 0;havoc main_#t~mem8;call write~int(-5, main_~x~0.base, main_~x~0.offset, 4); 183#L552-3 call main_#t~mem4 := read~int(main_~x~0.base, main_~x~0.offset, 4); 186#L551-1 assume !!(0 != main_#t~mem4);havoc main_#t~mem4;call main_#t~mem5 := read~int(main_~x~0.base, main_~x~0.offset, 4);main_#t~short7 := -5 <= main_#t~mem5; 189#L552 assume !main_#t~short7; 180#L552-2 [2021-10-11 00:30:54,604 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:30:54,604 INFO L82 PathProgramCache]: Analyzing trace with hash 28695847, now seen corresponding path program 2 times [2021-10-11 00:30:54,605 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:30:54,605 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1168145404] [2021-10-11 00:30:54,605 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:30:54,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 00:30:54,615 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 00:30:54,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 00:30:54,625 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 00:30:54,629 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-11 00:30:54,629 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:30:54,629 INFO L82 PathProgramCache]: Analyzing trace with hash 48745192, now seen corresponding path program 1 times [2021-10-11 00:30:54,629 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:30:54,630 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1166677122] [2021-10-11 00:30:54,630 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:30:54,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:30:54,659 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 00:30:54,659 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1166677122] [2021-10-11 00:30:54,659 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 00:30:54,659 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-11 00:30:54,659 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1319568843] [2021-10-11 00:30:54,660 INFO L811 eck$LassoCheckResult]: loop already infeasible [2021-10-11 00:30:54,660 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-11 00:30:54,660 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-11 00:30:54,661 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-11 00:30:54,661 INFO L87 Difference]: Start difference. First operand 20 states and 27 transitions. cyclomatic complexity: 9 Second operand 4 states. [2021-10-11 00:30:54,722 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:30:54,722 INFO L93 Difference]: Finished difference Result 31 states and 40 transitions. [2021-10-11 00:30:54,722 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-11 00:30:54,723 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 31 states and 40 transitions. [2021-10-11 00:30:54,728 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 12 [2021-10-11 00:30:54,730 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 31 states to 29 states and 38 transitions. [2021-10-11 00:30:54,730 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 22 [2021-10-11 00:30:54,731 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 23 [2021-10-11 00:30:54,731 INFO L73 IsDeterministic]: Start isDeterministic. Operand 29 states and 38 transitions. [2021-10-11 00:30:54,731 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-11 00:30:54,731 INFO L692 BuchiCegarLoop]: Abstraction has 29 states and 38 transitions. [2021-10-11 00:30:54,731 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states and 38 transitions. [2021-10-11 00:30:54,734 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 23. [2021-10-11 00:30:54,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2021-10-11 00:30:54,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 30 transitions. [2021-10-11 00:30:54,736 INFO L715 BuchiCegarLoop]: Abstraction has 23 states and 30 transitions. [2021-10-11 00:30:54,736 INFO L595 BuchiCegarLoop]: Abstraction has 23 states and 30 transitions. [2021-10-11 00:30:54,736 INFO L427 BuchiCegarLoop]: ======== Iteration 4============ [2021-10-11 00:30:54,737 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 23 states and 30 transitions. [2021-10-11 00:30:54,741 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 9 [2021-10-11 00:30:54,741 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-11 00:30:54,741 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-11 00:30:54,742 INFO L853 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2021-10-11 00:30:54,742 INFO L854 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2021-10-11 00:30:54,743 INFO L794 eck$LassoCheckResult]: Stem: 237#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 230#L-1 havoc main_#res;havoc main_#t~malloc2.base, main_#t~malloc2.offset, main_#t~nondet3, main_#t~mem5, main_#t~mem6, main_#t~short7, main_#t~mem8, main_#t~mem9, main_#t~mem10, main_#t~mem4, main_~x~0.base, main_~x~0.offset;call main_#t~malloc2.base, main_#t~malloc2.offset := #Ultimate.allocOnStack(4);main_~x~0.base, main_~x~0.offset := main_#t~malloc2.base, main_#t~malloc2.offset;call write~int(main_#t~nondet3, main_~x~0.base, main_~x~0.offset, 4);havoc main_#t~nondet3; 231#L552-3 call main_#t~mem4 := read~int(main_~x~0.base, main_~x~0.offset, 4); 247#L551-1 assume !!(0 != main_#t~mem4);havoc main_#t~mem4;call main_#t~mem5 := read~int(main_~x~0.base, main_~x~0.offset, 4);main_#t~short7 := -5 <= main_#t~mem5; 249#L552 assume main_#t~short7;call main_#t~mem6 := read~int(main_~x~0.base, main_~x~0.offset, 4);main_#t~short7 := main_#t~mem6 <= 35; 239#L552-2 [2021-10-11 00:30:54,743 INFO L796 eck$LassoCheckResult]: Loop: 239#L552-2 assume main_#t~short7;havoc main_#t~mem6;havoc main_#t~short7;havoc main_#t~mem5;call main_#t~mem8 := read~int(main_~x~0.base, main_~x~0.offset, 4); 252#L553 assume main_#t~mem8 < 0;havoc main_#t~mem8;call write~int(-5, main_~x~0.base, main_~x~0.offset, 4); 235#L552-3 call main_#t~mem4 := read~int(main_~x~0.base, main_~x~0.offset, 4); 244#L551-1 assume !!(0 != main_#t~mem4);havoc main_#t~mem4;call main_#t~mem5 := read~int(main_~x~0.base, main_~x~0.offset, 4);main_#t~short7 := -5 <= main_#t~mem5; 238#L552 assume main_#t~short7;call main_#t~mem6 := read~int(main_~x~0.base, main_~x~0.offset, 4);main_#t~short7 := main_#t~mem6 <= 35; 239#L552-2 [2021-10-11 00:30:54,744 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:30:54,744 INFO L82 PathProgramCache]: Analyzing trace with hash 28695847, now seen corresponding path program 3 times [2021-10-11 00:30:54,744 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:30:54,744 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1771068378] [2021-10-11 00:30:54,744 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:30:54,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 00:30:54,773 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 00:30:54,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 00:30:54,789 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 00:30:54,798 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-11 00:30:54,802 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:30:54,802 INFO L82 PathProgramCache]: Analyzing trace with hash 48745190, now seen corresponding path program 1 times [2021-10-11 00:30:54,803 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:30:54,803 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [422167850] [2021-10-11 00:30:54,803 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:30:54,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 00:30:54,818 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 00:30:54,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 00:30:54,827 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 00:30:54,833 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-11 00:30:54,834 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:30:54,834 INFO L82 PathProgramCache]: Analyzing trace with hash 707540352, now seen corresponding path program 1 times [2021-10-11 00:30:54,835 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:30:54,835 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1493600181] [2021-10-11 00:30:54,835 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:30:54,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 00:30:54,869 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 00:30:54,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 00:30:54,890 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 00:30:54,898 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-11 00:30:55,008 WARN L197 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 36 [2021-10-11 00:30:55,236 WARN L197 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 60 [2021-10-11 00:30:55,548 WARN L197 SmtUtils]: Spent 282.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 58 [2021-10-11 00:30:55,588 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 11.10 12:30:55 BoogieIcfgContainer [2021-10-11 00:30:55,588 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-10-11 00:30:55,589 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-11 00:30:55,589 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-11 00:30:55,589 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-11 00:30:55,590 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 12:30:52" (3/4) ... [2021-10-11 00:30:55,592 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2021-10-11 00:30:55,670 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_141f002d-16bf-4622-858f-29999cafe17c/bin/uautomizer-Z5i5R5N3CC/witness.graphml [2021-10-11 00:30:55,670 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-11 00:30:55,671 INFO L168 Benchmark]: Toolchain (without parser) took 4349.69 ms. Allocated memory was 90.2 MB in the beginning and 142.6 MB in the end (delta: 52.4 MB). Free memory was 50.6 MB in the beginning and 47.1 MB in the end (delta: 3.5 MB). Peak memory consumption was 57.0 MB. Max. memory is 16.1 GB. [2021-10-11 00:30:55,672 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 90.2 MB. Free memory is still 67.8 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 00:30:55,689 INFO L168 Benchmark]: CACSL2BoogieTranslator took 553.87 ms. Allocated memory was 90.2 MB in the beginning and 111.1 MB in the end (delta: 21.0 MB). Free memory was 50.4 MB in the beginning and 76.7 MB in the end (delta: -26.3 MB). Peak memory consumption was 6.4 MB. Max. memory is 16.1 GB. [2021-10-11 00:30:55,689 INFO L168 Benchmark]: Boogie Procedure Inliner took 61.21 ms. Allocated memory is still 111.1 MB. Free memory was 76.7 MB in the beginning and 75.0 MB in the end (delta: 1.7 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 00:30:55,690 INFO L168 Benchmark]: Boogie Preprocessor took 23.11 ms. Allocated memory is still 111.1 MB. Free memory was 75.0 MB in the beginning and 73.8 MB in the end (delta: 1.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-11 00:30:55,691 INFO L168 Benchmark]: RCFGBuilder took 404.37 ms. Allocated memory is still 111.1 MB. Free memory was 73.8 MB in the beginning and 59.5 MB in the end (delta: 14.3 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. [2021-10-11 00:30:55,692 INFO L168 Benchmark]: BuchiAutomizer took 3219.77 ms. Allocated memory was 111.1 MB in the beginning and 142.6 MB in the end (delta: 31.5 MB). Free memory was 59.1 MB in the beginning and 49.2 MB in the end (delta: 9.9 MB). Peak memory consumption was 46.4 MB. Max. memory is 16.1 GB. [2021-10-11 00:30:55,692 INFO L168 Benchmark]: Witness Printer took 81.15 ms. Allocated memory is still 142.6 MB. Free memory was 49.2 MB in the beginning and 47.1 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-11 00:30:55,696 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 90.2 MB. Free memory is still 67.8 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 553.87 ms. Allocated memory was 90.2 MB in the beginning and 111.1 MB in the end (delta: 21.0 MB). Free memory was 50.4 MB in the beginning and 76.7 MB in the end (delta: -26.3 MB). Peak memory consumption was 6.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 61.21 ms. Allocated memory is still 111.1 MB. Free memory was 76.7 MB in the beginning and 75.0 MB in the end (delta: 1.7 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 23.11 ms. Allocated memory is still 111.1 MB. Free memory was 75.0 MB in the beginning and 73.8 MB in the end (delta: 1.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * RCFGBuilder took 404.37 ms. Allocated memory is still 111.1 MB. Free memory was 73.8 MB in the beginning and 59.5 MB in the end (delta: 14.3 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 3219.77 ms. Allocated memory was 111.1 MB in the beginning and 142.6 MB in the end (delta: 31.5 MB). Free memory was 59.1 MB in the beginning and 49.2 MB in the end (delta: 9.9 MB). Peak memory consumption was 46.4 MB. Max. memory is 16.1 GB. * Witness Printer took 81.15 ms. Allocated memory is still 142.6 MB. Free memory was 49.2 MB in the beginning and 47.1 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 3 terminating modules (2 trivial, 1 deterministic, 0 nondeterministic) and one nonterminating remainder module.One deterministic module has affine ranking function -1 * unknown-#memory_int-unknown[x][x] and consists of 6 locations. 2 modules have a trivial ranking function, the largest among these consists of 4 locations. The remainder module has 23 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 3.1s and 4 iterations. TraceHistogramMax:1. Analysis of lassos took 2.6s. Construction of modules took 0.0s. Büchi inclusion checks took 0.2s. Highest rank in rank-based complementation 3. Minimization of det autom 0. Minimization of nondet autom 3. Automata minimization 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 9 StatesRemovedByMinimization, 2 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 23 states and ocurred in iteration 3. Nontrivial modules had stage [1, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 29 SDtfs, 16 SDslu, 27 SDs, 0 SdLazy, 75 SolverSat, 9 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont1 unkn0 SFLI2 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso1 LassoPreprocessingBenchmarks: Lassos: inital92 mio100 ax119 hnf100 lsp78 ukn73 mio100 lsp39 div100 bol100 ite100 ukn100 eq179 hnf88 smp100 dnf100 smp100 tf100 neg100 sie100 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 25ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 552]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=1} State at position 1 is {org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1adfbc7d=2, NULL=0, \result=0, NULL=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@53b1ddc7=0, NULL=0, x=2, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1adfbc7d=0, x=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTBinaryExpression@4baf516c=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTIdExpression@37969d48=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTIdExpression@51c78795=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTIdExpression@2dd9c267=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTIdExpression@67134aee=-5, org.eclipse.cdt.internal.core.dom.parser.c.CASTIdExpression@7cb94b84=-5, org.eclipse.cdt.internal.core.dom.parser.c.CASTIdExpression@5a49db33=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 552]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L549] int* x = __builtin_alloca (sizeof(int)); [L550] *x = __VERIFIER_nondet_int() [L551] EXPR \read(*x) [L551] COND TRUE *x != 0 [L552] EXPR \read(*x) [L552] -5 <= *x && *x <= 35 [L552] EXPR \read(*x) [L552] -5 <= *x && *x <= 35 Loop: [L552] COND TRUE -5 <= *x && *x <= 35 [L553] EXPR \read(*x) [L553] COND TRUE *x < 0 [L554] *x = -5 [L551] EXPR \read(*x) [L551] COND TRUE *x != 0 [L552] EXPR \read(*x) [L552] -5 <= *x && *x <= 35 [L552] EXPR \read(*x) [L552] -5 <= *x && *x <= 35 End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...