./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 678e0110 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_98d1604a-7a2d-4f55-98dd-80d455fa1ffe/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_98d1604a-7a2d-4f55-98dd-80d455fa1ffe/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_98d1604a-7a2d-4f55-98dd-80d455fa1ffe/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_98d1604a-7a2d-4f55-98dd-80d455fa1ffe/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-memory-alloca/Velroyen-alloca.i -s /tmp/vcloud-vcloud-master/worker/run_dir_98d1604a-7a2d-4f55-98dd-80d455fa1ffe/bin/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_98d1604a-7a2d-4f55-98dd-80d455fa1ffe/bin/uautomizer --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 0.1.24-678e011 [2019-11-20 03:55:12,989 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-20 03:55:12,991 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-20 03:55:13,005 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-20 03:55:13,005 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-20 03:55:13,007 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-20 03:55:13,009 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-20 03:55:13,017 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-20 03:55:13,021 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-20 03:55:13,024 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-20 03:55:13,025 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-20 03:55:13,026 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-20 03:55:13,026 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-20 03:55:13,027 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-20 03:55:13,027 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-20 03:55:13,028 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-20 03:55:13,029 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-20 03:55:13,031 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-20 03:55:13,033 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-20 03:55:13,036 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-20 03:55:13,040 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-20 03:55:13,042 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-20 03:55:13,045 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-20 03:55:13,045 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-20 03:55:13,048 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-20 03:55:13,048 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-20 03:55:13,049 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-20 03:55:13,050 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-20 03:55:13,050 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-20 03:55:13,051 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-20 03:55:13,051 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-20 03:55:13,052 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-20 03:55:13,053 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-20 03:55:13,054 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-20 03:55:13,055 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-20 03:55:13,055 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-20 03:55:13,056 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-20 03:55:13,056 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-20 03:55:13,056 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-20 03:55:13,057 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-20 03:55:13,058 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-20 03:55:13,059 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_98d1604a-7a2d-4f55-98dd-80d455fa1ffe/bin/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf [2019-11-20 03:55:13,089 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-20 03:55:13,089 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-20 03:55:13,090 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-20 03:55:13,090 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-20 03:55:13,091 INFO L138 SettingsManager]: * Use SBE=true [2019-11-20 03:55:13,091 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-11-20 03:55:13,091 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-11-20 03:55:13,091 INFO L138 SettingsManager]: * Use old map elimination=false [2019-11-20 03:55:13,091 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2019-11-20 03:55:13,092 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2019-11-20 03:55:13,092 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-11-20 03:55:13,092 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-20 03:55:13,092 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-20 03:55:13,092 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-20 03:55:13,093 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-20 03:55:13,093 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-11-20 03:55:13,093 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-11-20 03:55:13,093 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-11-20 03:55:13,094 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-20 03:55:13,094 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-11-20 03:55:13,094 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-20 03:55:13,094 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-11-20 03:55:13,094 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-20 03:55:13,095 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-20 03:55:13,095 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-11-20 03:55:13,095 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-20 03:55:13,095 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-20 03:55:13,095 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-11-20 03:55:13,096 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-11-20 03:55:13,096 INFO L138 SettingsManager]: * TransformationType=MODULO_NEIGHBOR 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-vcloud-master/worker/run_dir_98d1604a-7a2d-4f55-98dd-80d455fa1ffe/bin/uautomizer 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 [2019-11-20 03:55:13,262 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-20 03:55:13,280 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-20 03:55:13,283 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-20 03:55:13,287 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-20 03:55:13,287 INFO L275 PluginConnector]: CDTParser initialized [2019-11-20 03:55:13,288 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_98d1604a-7a2d-4f55-98dd-80d455fa1ffe/bin/uautomizer/../../sv-benchmarks/c/termination-memory-alloca/Velroyen-alloca.i [2019-11-20 03:55:13,338 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_98d1604a-7a2d-4f55-98dd-80d455fa1ffe/bin/uautomizer/data/b47bebcc1/3be073db97e84d7dac4e0bfd40dd461a/FLAG380e71bd3 [2019-11-20 03:55:13,806 INFO L306 CDTParser]: Found 1 translation units. [2019-11-20 03:55:13,807 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_98d1604a-7a2d-4f55-98dd-80d455fa1ffe/sv-benchmarks/c/termination-memory-alloca/Velroyen-alloca.i [2019-11-20 03:55:13,824 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_98d1604a-7a2d-4f55-98dd-80d455fa1ffe/bin/uautomizer/data/b47bebcc1/3be073db97e84d7dac4e0bfd40dd461a/FLAG380e71bd3 [2019-11-20 03:55:14,079 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_98d1604a-7a2d-4f55-98dd-80d455fa1ffe/bin/uautomizer/data/b47bebcc1/3be073db97e84d7dac4e0bfd40dd461a [2019-11-20 03:55:14,082 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-20 03:55:14,083 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-20 03:55:14,084 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-20 03:55:14,084 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-20 03:55:14,088 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-20 03:55:14,089 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 03:55:14" (1/1) ... [2019-11-20 03:55:14,091 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7e94c3b7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 03:55:14, skipping insertion in model container [2019-11-20 03:55:14,092 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 03:55:14" (1/1) ... [2019-11-20 03:55:14,097 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-20 03:55:14,143 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-20 03:55:14,466 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 03:55:14,476 INFO L188 MainTranslator]: Completed pre-run [2019-11-20 03:55:14,516 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 03:55:14,567 INFO L192 MainTranslator]: Completed translation [2019-11-20 03:55:14,567 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 03:55:14 WrapperNode [2019-11-20 03:55:14,567 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-20 03:55:14,568 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-20 03:55:14,568 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-20 03:55:14,568 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-20 03:55:14,574 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 03:55:14" (1/1) ... [2019-11-20 03:55:14,591 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 03:55:14" (1/1) ... [2019-11-20 03:55:14,616 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-20 03:55:14,616 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-20 03:55:14,616 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-20 03:55:14,617 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-20 03:55:14,626 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 03:55:14" (1/1) ... [2019-11-20 03:55:14,626 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 03:55:14" (1/1) ... [2019-11-20 03:55:14,647 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 03:55:14" (1/1) ... [2019-11-20 03:55:14,647 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 03:55:14" (1/1) ... [2019-11-20 03:55:14,652 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 03:55:14" (1/1) ... [2019-11-20 03:55:14,658 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 03:55:14" (1/1) ... [2019-11-20 03:55:14,667 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 03:55:14" (1/1) ... [2019-11-20 03:55:14,669 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-20 03:55:14,671 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-20 03:55:14,671 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-20 03:55:14,671 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-20 03:55:14,672 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 03:55:14" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_98d1604a-7a2d-4f55-98dd-80d455fa1ffe/bin/uautomizer/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 [2019-11-20 03:55:14,760 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-20 03:55:14,761 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-20 03:55:14,761 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-20 03:55:14,762 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-20 03:55:14,762 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-20 03:55:14,762 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-20 03:55:15,052 INFO L280 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-20 03:55:15,053 INFO L285 CfgBuilder]: Removed 5 assume(true) statements. [2019-11-20 03:55:15,054 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 03:55:15 BoogieIcfgContainer [2019-11-20 03:55:15,054 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-20 03:55:15,064 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-11-20 03:55:15,064 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-11-20 03:55:15,067 INFO L275 PluginConnector]: BuchiAutomizer initialized [2019-11-20 03:55:15,068 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-20 03:55:15,068 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 20.11 03:55:14" (1/3) ... [2019-11-20 03:55:15,069 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@28982ebe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 20.11 03:55:15, skipping insertion in model container [2019-11-20 03:55:15,069 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-20 03:55:15,070 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 03:55:14" (2/3) ... [2019-11-20 03:55:15,070 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@28982ebe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 20.11 03:55:15, skipping insertion in model container [2019-11-20 03:55:15,070 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-20 03:55:15,070 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 03:55:15" (3/3) ... [2019-11-20 03:55:15,072 INFO L371 chiAutomizerObserver]: Analyzing ICFG Velroyen-alloca.i [2019-11-20 03:55:15,116 INFO L356 BuchiCegarLoop]: Interprodecural is true [2019-11-20 03:55:15,116 INFO L357 BuchiCegarLoop]: Hoare is false [2019-11-20 03:55:15,116 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-11-20 03:55:15,117 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-20 03:55:15,117 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-20 03:55:15,117 INFO L361 BuchiCegarLoop]: Difference is false [2019-11-20 03:55:15,117 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-20 03:55:15,117 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-11-20 03:55:15,131 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 12 states. [2019-11-20 03:55:15,152 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2019-11-20 03:55:15,152 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-20 03:55:15,152 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-20 03:55:15,160 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2019-11-20 03:55:15,160 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2019-11-20 03:55:15,160 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2019-11-20 03:55:15,161 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 12 states. [2019-11-20 03:55:15,162 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2019-11-20 03:55:15,162 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-20 03:55:15,162 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-20 03:55:15,163 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2019-11-20 03:55:15,163 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2019-11-20 03:55:15,174 INFO L794 eck$LassoCheckResult]: Stem: 7#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 3#L-1true havoc main_#res;havoc main_#t~malloc2.base, main_#t~malloc2.offset, main_#t~nondet3, main_#t~mem5, main_#t~mem6, main_#t~short7, main_#t~mem8, main_#t~mem9, main_#t~mem10, main_#t~mem4, main_~x~0.base, main_~x~0.offset;call main_#t~malloc2.base, main_#t~malloc2.offset := #Ultimate.allocOnStack(4);main_~x~0.base, main_~x~0.offset := main_#t~malloc2.base, main_#t~malloc2.offset;call write~int(main_#t~nondet3, main_~x~0.base, main_~x~0.offset, 4);havoc main_#t~nondet3; 14#L552-3true [2019-11-20 03:55:15,175 INFO L796 eck$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~mem5;havoc main_#t~short7;call write~int(0, main_~x~0.base, main_~x~0.offset, 4); 14#L552-3true [2019-11-20 03:55:15,181 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 03:55:15,182 INFO L82 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2019-11-20 03:55:15,189 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 03:55:15,189 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1558583912] [2019-11-20 03:55:15,190 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 03:55:15,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 03:55:15,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 03:55:15,312 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 03:55:15,313 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 03:55:15,313 INFO L82 PathProgramCache]: Analyzing trace with hash 1144151, now seen corresponding path program 1 times [2019-11-20 03:55:15,313 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 03:55:15,313 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [575263428] [2019-11-20 03:55:15,314 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 03:55:15,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 03:55:15,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 03:55:15,333 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 03:55:15,335 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 03:55:15,335 INFO L82 PathProgramCache]: Analyzing trace with hash 889571353, now seen corresponding path program 1 times [2019-11-20 03:55:15,335 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 03:55:15,335 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1223563643] [2019-11-20 03:55:15,335 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 03:55:15,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 03:55:15,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 03:55:15,364 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 03:55:15,482 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 36 DAG size of output: 31 [2019-11-20 03:55:15,658 WARN L191 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 41 [2019-11-20 03:55:15,709 INFO L210 LassoAnalysis]: Preferences: [2019-11-20 03:55:15,711 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-20 03:55:15,711 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-20 03:55:15,711 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-20 03:55:15,712 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-11-20 03:55:15,712 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 03:55:15,712 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-20 03:55:15,713 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-20 03:55:15,713 INFO L133 ssoRankerPreferences]: Filename of dumped script: Velroyen-alloca.i_Iteration1_Lasso [2019-11-20 03:55:15,713 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-20 03:55:15,714 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-20 03:55:15,732 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 03:55:15,739 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 03:55:15,742 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 03:55:15,746 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 03:55:15,748 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 03:55:15,750 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 03:55:15,753 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 03:55:15,756 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 03:55:15,763 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 03:55:15,769 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 03:55:15,775 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 03:55:15,778 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 03:55:15,781 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 03:55:15,786 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 03:55:15,806 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 03:55:15,916 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 03:55:16,189 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-20 03:55:16,197 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_98d1604a-7a2d-4f55-98dd-80d455fa1ffe/bin/uautomizer/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-20 03:55:16,214 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 [2019-11-20 03:55:16,217 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 03:55:16,217 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 03:55:16,218 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 03:55:16,218 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 03:55:16,218 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 03:55:16,221 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 03:55:16,221 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 03:55:16,227 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_98d1604a-7a2d-4f55-98dd-80d455fa1ffe/bin/uautomizer/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-20 03:55:16,246 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 [2019-11-20 03:55:16,248 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 03:55:16,248 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 03:55:16,248 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 03:55:16,248 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 03:55:16,248 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 03:55:16,249 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 03:55:16,249 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 [2019-11-20 03:55:16,253 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_98d1604a-7a2d-4f55-98dd-80d455fa1ffe/bin/uautomizer/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-20 03:55:16,271 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 [2019-11-20 03:55:16,272 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 03:55:16,273 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 03:55:16,273 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 03:55:16,273 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 03:55:16,273 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 03:55:16,275 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 03:55:16,275 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 [2019-11-20 03:55:16,279 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_98d1604a-7a2d-4f55-98dd-80d455fa1ffe/bin/uautomizer/z3 Starting monitored process 5 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 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 03:55:16,292 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 [2019-11-20 03:55:16,294 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 03:55:16,294 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 03:55:16,294 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 03:55:16,294 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 03:55:16,295 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 03:55:16,295 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 03:55:16,295 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-20 03:55:16,297 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_98d1604a-7a2d-4f55-98dd-80d455fa1ffe/bin/uautomizer/z3 Starting monitored process 6 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 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 03:55:16,315 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 [2019-11-20 03:55:16,317 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 03:55:16,317 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 03:55:16,317 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 03:55:16,318 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 03:55:16,318 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 03:55:16,319 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 03:55:16,319 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-20 03:55:16,321 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_98d1604a-7a2d-4f55-98dd-80d455fa1ffe/bin/uautomizer/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-20 03:55:16,336 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 [2019-11-20 03:55:16,337 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 03:55:16,338 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 03:55:16,338 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 03:55:16,338 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 03:55:16,342 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-20 03:55:16,342 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 [2019-11-20 03:55:16,347 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_98d1604a-7a2d-4f55-98dd-80d455fa1ffe/bin/uautomizer/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-20 03:55:16,362 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 [2019-11-20 03:55:16,363 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 03:55:16,364 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 03:55:16,364 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 03:55:16,364 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 03:55:16,364 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 03:55:16,365 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 03:55:16,365 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 [2019-11-20 03:55:16,367 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_98d1604a-7a2d-4f55-98dd-80d455fa1ffe/bin/uautomizer/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-20 03:55:16,382 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 [2019-11-20 03:55:16,383 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 03:55:16,384 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 03:55:16,384 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 03:55:16,384 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 03:55:16,387 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-20 03:55:16,387 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 [2019-11-20 03:55:16,391 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_98d1604a-7a2d-4f55-98dd-80d455fa1ffe/bin/uautomizer/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-20 03:55:16,407 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 [2019-11-20 03:55:16,409 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 03:55:16,409 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 03:55:16,410 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 03:55:16,410 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 03:55:16,415 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-20 03:55:16,415 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 [2019-11-20 03:55:16,420 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_98d1604a-7a2d-4f55-98dd-80d455fa1ffe/bin/uautomizer/z3 Starting monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-20 03:55:16,436 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 [2019-11-20 03:55:16,437 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 03:55:16,438 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 03:55:16,438 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 03:55:16,438 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 [2019-11-20 03:55:16,448 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-20 03:55:16,448 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-20 03:55:16,455 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_98d1604a-7a2d-4f55-98dd-80d455fa1ffe/bin/uautomizer/z3 Starting monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-20 03:55:16,463 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 [2019-11-20 03:55:16,465 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 03:55:16,465 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 03:55:16,465 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 03:55:16,466 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 03:55:16,466 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 03:55:16,468 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 03:55:16,468 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 03:55:16,471 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_98d1604a-7a2d-4f55-98dd-80d455fa1ffe/bin/uautomizer/z3 Starting monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-20 03:55:16,483 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 Waiting until toolchain timeout for monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 03:55:16,485 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 03:55:16,485 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 03:55:16,485 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 03:55:16,485 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 03:55:16,489 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-20 03:55:16,489 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-20 03:55:16,499 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_98d1604a-7a2d-4f55-98dd-80d455fa1ffe/bin/uautomizer/z3 Starting monitored process 14 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 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 03:55:16,506 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 [2019-11-20 03:55:16,507 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 03:55:16,507 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 03:55:16,507 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 03:55:16,507 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 03:55:16,513 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-20 03:55:16,513 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-20 03:55:16,517 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_98d1604a-7a2d-4f55-98dd-80d455fa1ffe/bin/uautomizer/z3 Starting monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-20 03:55:16,527 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 [2019-11-20 03:55:16,529 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 03:55:16,529 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 03:55:16,530 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 03:55:16,530 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 03:55:16,530 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 03:55:16,531 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 03:55:16,531 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-20 03:55:16,532 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. Waiting until toolchain timeout for monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_98d1604a-7a2d-4f55-98dd-80d455fa1ffe/bin/uautomizer/z3 Starting monitored process 16 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 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 03:55:16,551 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 [2019-11-20 03:55:16,553 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 03:55:16,553 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 03:55:16,553 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 03:55:16,553 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 03:55:16,558 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-20 03:55:16,558 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-20 03:55:16,564 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_98d1604a-7a2d-4f55-98dd-80d455fa1ffe/bin/uautomizer/z3 Starting monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-20 03:55:16,579 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 [2019-11-20 03:55:16,580 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 03:55:16,581 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 03:55:16,581 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 03:55:16,581 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. Waiting until toolchain timeout for monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 03:55:16,584 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-20 03:55:16,585 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-20 03:55:16,591 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-11-20 03:55:16,683 INFO L443 ModelExtractionUtils]: Simplification made 5 calls to the SMT solver. [2019-11-20 03:55:16,684 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-vcloud-master/worker/run_dir_98d1604a-7a2d-4f55-98dd-80d455fa1ffe/bin/uautomizer/z3 Starting monitored process 18 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 18 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 03:55:16,719 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-11-20 03:55:16,722 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2019-11-20 03:55:16,723 INFO L510 LassoAnalysis]: Proved termination. [2019-11-20 03:55:16,724 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 [] [2019-11-20 03:55:16,748 INFO L297 tatePredicateManager]: 3 out of 3 supporting invariants were superfluous and have been removed [2019-11-20 03:55:16,756 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2019-11-20 03:55:16,778 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 03:55:16,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 03:55:16,794 INFO L255 TraceCheckSpWp]: Trace formula consists of 25 conjuncts, 2 conjunts are in the unsatisfiable core [2019-11-20 03:55:16,795 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 03:55:16,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 03:55:16,812 INFO L255 TraceCheckSpWp]: Trace formula consists of 23 conjuncts, 6 conjunts are in the unsatisfiable core [2019-11-20 03:55:16,813 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 03:55:16,820 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 03:55:16,875 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 03:55:16,891 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 [2019-11-20 03:55:16,892 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 12 states. Second operand 5 states. [2019-11-20 03:55:16,993 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 12 states.. Second operand 5 states. Result 42 states and 56 transitions. Complement of second has 10 states. [2019-11-20 03:55:16,993 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 6 states 1 stem states 3 non-accepting loop states 1 accepting loop states [2019-11-20 03:55:16,995 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2019-11-20 03:55:16,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 21 transitions. [2019-11-20 03:55:16,997 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 21 transitions. Stem has 2 letters. Loop has 4 letters. [2019-11-20 03:55:16,998 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-20 03:55:16,998 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 21 transitions. Stem has 6 letters. Loop has 4 letters. [2019-11-20 03:55:16,998 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-20 03:55:16,998 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 21 transitions. Stem has 2 letters. Loop has 8 letters. [2019-11-20 03:55:16,999 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-20 03:55:17,000 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 42 states and 56 transitions. [2019-11-20 03:55:17,002 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2019-11-20 03:55:17,006 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 42 states to 23 states and 35 transitions. [2019-11-20 03:55:17,008 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 16 [2019-11-20 03:55:17,008 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 17 [2019-11-20 03:55:17,008 INFO L73 IsDeterministic]: Start isDeterministic. Operand 23 states and 35 transitions. [2019-11-20 03:55:17,009 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-11-20 03:55:17,009 INFO L688 BuchiCegarLoop]: Abstraction has 23 states and 35 transitions. [2019-11-20 03:55:17,024 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states and 35 transitions. [2019-11-20 03:55:17,033 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 20. [2019-11-20 03:55:17,033 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2019-11-20 03:55:17,039 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 29 transitions. [2019-11-20 03:55:17,040 INFO L711 BuchiCegarLoop]: Abstraction has 20 states and 29 transitions. [2019-11-20 03:55:17,040 INFO L591 BuchiCegarLoop]: Abstraction has 20 states and 29 transitions. [2019-11-20 03:55:17,041 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2019-11-20 03:55:17,041 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 20 states and 29 transitions. [2019-11-20 03:55:17,044 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2019-11-20 03:55:17,044 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-20 03:55:17,044 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-20 03:55:17,044 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2019-11-20 03:55:17,045 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2019-11-20 03:55:17,045 INFO L794 eck$LassoCheckResult]: Stem: 123#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 116#L-1 havoc main_#res;havoc main_#t~malloc2.base, main_#t~malloc2.offset, main_#t~nondet3, main_#t~mem5, main_#t~mem6, main_#t~short7, main_#t~mem8, main_#t~mem9, main_#t~mem10, main_#t~mem4, main_~x~0.base, main_~x~0.offset;call main_#t~malloc2.base, main_#t~malloc2.offset := #Ultimate.allocOnStack(4);main_~x~0.base, main_~x~0.offset := main_#t~malloc2.base, main_#t~malloc2.offset;call write~int(main_#t~nondet3, main_~x~0.base, main_~x~0.offset, 4);havoc main_#t~nondet3; 117#L552-3 call main_#t~mem4 := read~int(main_~x~0.base, main_~x~0.offset, 4); 129#L551-1 assume !!(0 != main_#t~mem4);havoc main_#t~mem4;call main_#t~mem5 := read~int(main_~x~0.base, main_~x~0.offset, 4);main_#t~short7 := -5 <= main_#t~mem5; 130#L552 assume main_#t~short7;call main_#t~mem6 := read~int(main_~x~0.base, main_~x~0.offset, 4);main_#t~short7 := main_#t~mem6 <= 35; 125#L552-2 [2019-11-20 03:55:17,046 INFO L796 eck$LassoCheckResult]: Loop: 125#L552-2 assume !main_#t~short7;havoc main_#t~mem6;havoc main_#t~mem5;havoc main_#t~short7;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 [2019-11-20 03:55:17,046 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 03:55:17,046 INFO L82 PathProgramCache]: Analyzing trace with hash 28695847, now seen corresponding path program 1 times [2019-11-20 03:55:17,046 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 03:55:17,047 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [574798815] [2019-11-20 03:55:17,047 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 03:55:17,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 03:55:17,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 03:55:17,100 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 03:55:17,101 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 03:55:17,101 INFO L82 PathProgramCache]: Analyzing trace with hash 1943531, now seen corresponding path program 2 times [2019-11-20 03:55:17,101 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 03:55:17,101 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1538897740] [2019-11-20 03:55:17,102 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 03:55:17,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 03:55:17,177 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 03:55:17,178 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1538897740] [2019-11-20 03:55:17,179 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 03:55:17,179 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-20 03:55:17,179 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1725290589] [2019-11-20 03:55:17,182 INFO L811 eck$LassoCheckResult]: loop already infeasible [2019-11-20 03:55:17,182 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 03:55:17,184 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-20 03:55:17,185 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-20 03:55:17,186 INFO L87 Difference]: Start difference. First operand 20 states and 29 transitions. cyclomatic complexity: 11 Second operand 4 states. [2019-11-20 03:55:17,224 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 03:55:17,224 INFO L93 Difference]: Finished difference Result 25 states and 32 transitions. [2019-11-20 03:55:17,225 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-20 03:55:17,226 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 25 states and 32 transitions. [2019-11-20 03:55:17,227 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2019-11-20 03:55:17,228 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 25 states to 20 states and 27 transitions. [2019-11-20 03:55:17,228 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 14 [2019-11-20 03:55:17,228 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 14 [2019-11-20 03:55:17,229 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 27 transitions. [2019-11-20 03:55:17,229 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-11-20 03:55:17,229 INFO L688 BuchiCegarLoop]: Abstraction has 20 states and 27 transitions. [2019-11-20 03:55:17,229 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states and 27 transitions. [2019-11-20 03:55:17,231 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20. [2019-11-20 03:55:17,231 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2019-11-20 03:55:17,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 27 transitions. [2019-11-20 03:55:17,232 INFO L711 BuchiCegarLoop]: Abstraction has 20 states and 27 transitions. [2019-11-20 03:55:17,232 INFO L591 BuchiCegarLoop]: Abstraction has 20 states and 27 transitions. [2019-11-20 03:55:17,232 INFO L424 BuchiCegarLoop]: ======== Iteration 3============ [2019-11-20 03:55:17,233 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 20 states and 27 transitions. [2019-11-20 03:55:17,234 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2019-11-20 03:55:17,234 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-20 03:55:17,234 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-20 03:55:17,234 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2019-11-20 03:55:17,235 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2019-11-20 03:55:17,235 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 [2019-11-20 03:55:17,235 INFO L796 eck$LassoCheckResult]: Loop: 180#L552-2 assume main_#t~short7;havoc main_#t~mem6;havoc main_#t~mem5;havoc main_#t~short7;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 [2019-11-20 03:55:17,235 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 03:55:17,236 INFO L82 PathProgramCache]: Analyzing trace with hash 28695847, now seen corresponding path program 2 times [2019-11-20 03:55:17,236 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 03:55:17,236 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1124338489] [2019-11-20 03:55:17,236 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 03:55:17,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 03:55:17,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 03:55:17,260 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 03:55:17,261 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 03:55:17,261 INFO L82 PathProgramCache]: Analyzing trace with hash 48745192, now seen corresponding path program 1 times [2019-11-20 03:55:17,261 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 03:55:17,262 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1900237771] [2019-11-20 03:55:17,262 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 03:55:17,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 03:55:17,294 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 03:55:17,294 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1900237771] [2019-11-20 03:55:17,294 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 03:55:17,295 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-20 03:55:17,295 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1828065242] [2019-11-20 03:55:17,295 INFO L811 eck$LassoCheckResult]: loop already infeasible [2019-11-20 03:55:17,295 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 03:55:17,296 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-20 03:55:17,296 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-20 03:55:17,296 INFO L87 Difference]: Start difference. First operand 20 states and 27 transitions. cyclomatic complexity: 9 Second operand 4 states. [2019-11-20 03:55:17,356 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 03:55:17,356 INFO L93 Difference]: Finished difference Result 31 states and 40 transitions. [2019-11-20 03:55:17,356 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-20 03:55:17,357 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 31 states and 40 transitions. [2019-11-20 03:55:17,358 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 12 [2019-11-20 03:55:17,359 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 31 states to 29 states and 38 transitions. [2019-11-20 03:55:17,359 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 22 [2019-11-20 03:55:17,359 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 23 [2019-11-20 03:55:17,360 INFO L73 IsDeterministic]: Start isDeterministic. Operand 29 states and 38 transitions. [2019-11-20 03:55:17,360 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-11-20 03:55:17,360 INFO L688 BuchiCegarLoop]: Abstraction has 29 states and 38 transitions. [2019-11-20 03:55:17,360 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states and 38 transitions. [2019-11-20 03:55:17,362 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 23. [2019-11-20 03:55:17,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2019-11-20 03:55:17,363 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 30 transitions. [2019-11-20 03:55:17,363 INFO L711 BuchiCegarLoop]: Abstraction has 23 states and 30 transitions. [2019-11-20 03:55:17,363 INFO L591 BuchiCegarLoop]: Abstraction has 23 states and 30 transitions. [2019-11-20 03:55:17,363 INFO L424 BuchiCegarLoop]: ======== Iteration 4============ [2019-11-20 03:55:17,364 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 23 states and 30 transitions. [2019-11-20 03:55:17,364 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 9 [2019-11-20 03:55:17,365 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-20 03:55:17,365 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-20 03:55:17,365 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2019-11-20 03:55:17,365 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2019-11-20 03:55:17,366 INFO L794 eck$LassoCheckResult]: Stem: 237#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 230#L-1 havoc main_#res;havoc main_#t~malloc2.base, main_#t~malloc2.offset, main_#t~nondet3, main_#t~mem5, main_#t~mem6, main_#t~short7, main_#t~mem8, main_#t~mem9, main_#t~mem10, main_#t~mem4, main_~x~0.base, main_~x~0.offset;call main_#t~malloc2.base, main_#t~malloc2.offset := #Ultimate.allocOnStack(4);main_~x~0.base, main_~x~0.offset := main_#t~malloc2.base, main_#t~malloc2.offset;call write~int(main_#t~nondet3, main_~x~0.base, main_~x~0.offset, 4);havoc main_#t~nondet3; 231#L552-3 call main_#t~mem4 := read~int(main_~x~0.base, main_~x~0.offset, 4); 247#L551-1 assume !!(0 != main_#t~mem4);havoc main_#t~mem4;call main_#t~mem5 := read~int(main_~x~0.base, main_~x~0.offset, 4);main_#t~short7 := -5 <= main_#t~mem5; 249#L552 assume main_#t~short7;call main_#t~mem6 := read~int(main_~x~0.base, main_~x~0.offset, 4);main_#t~short7 := main_#t~mem6 <= 35; 239#L552-2 [2019-11-20 03:55:17,366 INFO L796 eck$LassoCheckResult]: Loop: 239#L552-2 assume main_#t~short7;havoc main_#t~mem6;havoc main_#t~mem5;havoc main_#t~short7;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 [2019-11-20 03:55:17,366 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 03:55:17,366 INFO L82 PathProgramCache]: Analyzing trace with hash 28695847, now seen corresponding path program 3 times [2019-11-20 03:55:17,366 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 03:55:17,367 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [313465136] [2019-11-20 03:55:17,367 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 03:55:17,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 03:55:17,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 03:55:17,387 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 03:55:17,387 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 03:55:17,388 INFO L82 PathProgramCache]: Analyzing trace with hash 48745190, now seen corresponding path program 1 times [2019-11-20 03:55:17,388 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 03:55:17,388 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1053391326] [2019-11-20 03:55:17,388 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 03:55:17,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 03:55:17,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 03:55:17,403 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 03:55:17,404 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 03:55:17,404 INFO L82 PathProgramCache]: Analyzing trace with hash 707540352, now seen corresponding path program 1 times [2019-11-20 03:55:17,404 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 03:55:17,405 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1380650733] [2019-11-20 03:55:17,405 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 03:55:17,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 03:55:17,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 03:55:17,432 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 03:55:17,792 WARN L191 SmtUtils]: Spent 205.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 63 [2019-11-20 03:55:18,101 WARN L191 SmtUtils]: Spent 297.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 57 [2019-11-20 03:55:18,125 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 20.11 03:55:18 BoogieIcfgContainer [2019-11-20 03:55:18,126 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-11-20 03:55:18,126 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-20 03:55:18,126 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-20 03:55:18,127 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-20 03:55:18,127 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 03:55:15" (3/4) ... [2019-11-20 03:55:18,130 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2019-11-20 03:55:18,172 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_98d1604a-7a2d-4f55-98dd-80d455fa1ffe/bin/uautomizer/witness.graphml [2019-11-20 03:55:18,172 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-20 03:55:18,174 INFO L168 Benchmark]: Toolchain (without parser) took 4090.33 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 231.7 MB). Free memory was 939.3 MB in the beginning and 1.1 GB in the end (delta: -199.6 MB). Peak memory consumption was 32.1 MB. Max. memory is 11.5 GB. [2019-11-20 03:55:18,174 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 1.0 GB. Free memory is still 962.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 03:55:18,175 INFO L168 Benchmark]: CACSL2BoogieTranslator took 483.97 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 165.2 MB). Free memory was 939.3 MB in the beginning and 1.1 GB in the end (delta: -209.7 MB). Peak memory consumption was 18.0 MB. Max. memory is 11.5 GB. [2019-11-20 03:55:18,176 INFO L168 Benchmark]: Boogie Procedure Inliner took 47.98 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.5 MB). Peak memory consumption was 6.5 MB. Max. memory is 11.5 GB. [2019-11-20 03:55:18,176 INFO L168 Benchmark]: Boogie Preprocessor took 54.06 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 03:55:18,177 INFO L168 Benchmark]: RCFGBuilder took 392.72 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 22.1 MB). Peak memory consumption was 22.1 MB. Max. memory is 11.5 GB. [2019-11-20 03:55:18,177 INFO L168 Benchmark]: BuchiAutomizer took 3062.12 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 66.6 MB). Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: -20.9 MB). Peak memory consumption was 286.0 MB. Max. memory is 11.5 GB. [2019-11-20 03:55:18,178 INFO L168 Benchmark]: Witness Printer took 45.76 ms. Allocated memory is still 1.3 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 11.5 GB. [2019-11-20 03:55:18,181 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 ms. Allocated memory is still 1.0 GB. Free memory is still 962.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 483.97 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 165.2 MB). Free memory was 939.3 MB in the beginning and 1.1 GB in the end (delta: -209.7 MB). Peak memory consumption was 18.0 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 47.98 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.5 MB). Peak memory consumption was 6.5 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 54.06 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 392.72 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 22.1 MB). Peak memory consumption was 22.1 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 3062.12 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 66.6 MB). Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: -20.9 MB). Peak memory consumption was 286.0 MB. Max. memory is 11.5 GB. * Witness Printer took 45.76 ms. Allocated memory is still 1.3 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int * 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 3.0s and 4 iterations. TraceHistogramMax:1. Analysis of lassos took 2.5s. Construction of modules took 0.1s. 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, 0.1s Time LassoAnalysisResults: nont1 unkn0 SFLI2 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso1 LassoPreprocessingBenchmarks: Lassos: inital99 mio100 ax118 hnf100 lsp76 ukn72 mio100 lsp41 div100 bol100 ite100 ukn100 eq144 hnf92 smp83 dnf100 smp100 tf100 neg100 sie100 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 23ms 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@72cea21e=2, NULL=0, \result=0, NULL=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@304d65da=0, NULL=0, x=2, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@72cea21e=0, x=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTBinaryExpression@3c1bf272=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTIdExpression@58c63bc1=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTIdExpression@7105984b=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTIdExpression@63bc69ee=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTIdExpression@5293c1a8=-5, org.eclipse.cdt.internal.core.dom.parser.c.CASTIdExpression@13d87a8=-5, org.eclipse.cdt.internal.core.dom.parser.c.CASTIdExpression@4da90b96=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...