./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/loops/verisec_NetBSD-libc_loop.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version f470102c Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_c151f09a-f747-4560-ab57-dd51dbdbd97e/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_c151f09a-f747-4560-ab57-dd51dbdbd97e/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_c151f09a-f747-4560-ab57-dd51dbdbd97e/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_c151f09a-f747-4560-ab57-dd51dbdbd97e/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/loops/verisec_NetBSD-libc_loop.i -s /tmp/vcloud-vcloud-master/worker/run_dir_c151f09a-f747-4560-ab57-dd51dbdbd97e/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_c151f09a-f747-4560-ab57-dd51dbdbd97e/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 32bit --witnessprinter.graph.data.programhash 19c675897a6506757b73d61913c0ceb3a779b5c8 ................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.25-f470102 [2019-12-07 18:23:46,615 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 18:23:46,616 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 18:23:46,623 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 18:23:46,624 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 18:23:46,624 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 18:23:46,625 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 18:23:46,627 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 18:23:46,628 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 18:23:46,628 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 18:23:46,629 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 18:23:46,630 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 18:23:46,630 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 18:23:46,631 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 18:23:46,631 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 18:23:46,632 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 18:23:46,633 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 18:23:46,633 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 18:23:46,635 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 18:23:46,636 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 18:23:46,637 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 18:23:46,638 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 18:23:46,639 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 18:23:46,639 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 18:23:46,641 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 18:23:46,641 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 18:23:46,641 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 18:23:46,642 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 18:23:46,642 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 18:23:46,642 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 18:23:46,643 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 18:23:46,643 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 18:23:46,643 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 18:23:46,644 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 18:23:46,644 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 18:23:46,645 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 18:23:46,645 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 18:23:46,645 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 18:23:46,645 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 18:23:46,646 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 18:23:46,646 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 18:23:46,647 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_c151f09a-f747-4560-ab57-dd51dbdbd97e/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2019-12-07 18:23:46,658 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 18:23:46,658 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 18:23:46,659 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-07 18:23:46,659 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-07 18:23:46,659 INFO L138 SettingsManager]: * Use SBE=true [2019-12-07 18:23:46,659 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-12-07 18:23:46,660 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-12-07 18:23:46,660 INFO L138 SettingsManager]: * Use old map elimination=false [2019-12-07 18:23:46,660 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2019-12-07 18:23:46,660 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2019-12-07 18:23:46,660 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-12-07 18:23:46,660 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 18:23:46,660 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 18:23:46,660 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-12-07 18:23:46,661 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-07 18:23:46,661 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 18:23:46,661 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 18:23:46,661 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-12-07 18:23:46,661 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-12-07 18:23:46,661 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-12-07 18:23:46,661 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 18:23:46,661 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 18:23:46,662 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-12-07 18:23:46,662 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 18:23:46,662 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-12-07 18:23:46,662 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 18:23:46,662 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-07 18:23:46,662 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-12-07 18:23:46,662 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 18:23:46,662 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-07 18:23:46,662 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 18:23:46,662 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-12-07 18:23:46,663 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-12-07 18:23:46,663 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_c151f09a-f747-4560-ab57-dd51dbdbd97e/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 -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 19c675897a6506757b73d61913c0ceb3a779b5c8 [2019-12-07 18:23:46,760 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 18:23:46,769 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 18:23:46,771 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 18:23:46,772 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 18:23:46,772 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 18:23:46,773 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_c151f09a-f747-4560-ab57-dd51dbdbd97e/bin/uautomizer/../../sv-benchmarks/c/loops/verisec_NetBSD-libc_loop.i [2019-12-07 18:23:46,812 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_c151f09a-f747-4560-ab57-dd51dbdbd97e/bin/uautomizer/data/3d2681121/3a8165f90a8b4145894f23c102872a4d/FLAG9d4639381 [2019-12-07 18:23:47,304 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 18:23:47,304 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_c151f09a-f747-4560-ab57-dd51dbdbd97e/sv-benchmarks/c/loops/verisec_NetBSD-libc_loop.i [2019-12-07 18:23:47,309 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_c151f09a-f747-4560-ab57-dd51dbdbd97e/bin/uautomizer/data/3d2681121/3a8165f90a8b4145894f23c102872a4d/FLAG9d4639381 [2019-12-07 18:23:47,797 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_c151f09a-f747-4560-ab57-dd51dbdbd97e/bin/uautomizer/data/3d2681121/3a8165f90a8b4145894f23c102872a4d [2019-12-07 18:23:47,798 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 18:23:47,799 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 18:23:47,800 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 18:23:47,800 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 18:23:47,802 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 18:23:47,803 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 06:23:47" (1/1) ... [2019-12-07 18:23:47,804 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@17b2f2d1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:23:47, skipping insertion in model container [2019-12-07 18:23:47,804 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 06:23:47" (1/1) ... [2019-12-07 18:23:47,809 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 18:23:47,819 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 18:23:47,953 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 18:23:47,961 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 18:23:47,971 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 18:23:47,981 INFO L208 MainTranslator]: Completed translation [2019-12-07 18:23:47,981 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:23:47 WrapperNode [2019-12-07 18:23:47,982 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 18:23:47,982 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-07 18:23:47,982 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-07 18:23:47,982 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-07 18:23:47,987 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:23:47" (1/1) ... [2019-12-07 18:23:47,992 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:23:47" (1/1) ... [2019-12-07 18:23:48,005 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-07 18:23:48,005 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 18:23:48,005 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 18:23:48,005 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 18:23:48,011 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:23:47" (1/1) ... [2019-12-07 18:23:48,011 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:23:47" (1/1) ... [2019-12-07 18:23:48,012 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:23:47" (1/1) ... [2019-12-07 18:23:48,012 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:23:47" (1/1) ... [2019-12-07 18:23:48,017 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:23:47" (1/1) ... [2019-12-07 18:23:48,021 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:23:47" (1/1) ... [2019-12-07 18:23:48,022 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:23:47" (1/1) ... [2019-12-07 18:23:48,023 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 18:23:48,024 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 18:23:48,024 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 18:23:48,024 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 18:23:48,024 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:23:47" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c151f09a-f747-4560-ab57-dd51dbdbd97e/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 [2019-12-07 18:23:48,067 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-12-07 18:23:48,067 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 18:23:48,067 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 18:23:48,067 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-07 18:23:48,067 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-07 18:23:48,193 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 18:23:48,193 INFO L287 CfgBuilder]: Removed 9 assume(true) statements. [2019-12-07 18:23:48,194 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 06:23:48 BoogieIcfgContainer [2019-12-07 18:23:48,194 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 18:23:48,195 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-12-07 18:23:48,195 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-12-07 18:23:48,198 INFO L275 PluginConnector]: BuchiAutomizer initialized [2019-12-07 18:23:48,198 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-12-07 18:23:48,199 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 07.12 06:23:47" (1/3) ... [2019-12-07 18:23:48,199 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@7b738631 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 07.12 06:23:48, skipping insertion in model container [2019-12-07 18:23:48,200 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-12-07 18:23:48,200 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:23:47" (2/3) ... [2019-12-07 18:23:48,200 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@7b738631 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 07.12 06:23:48, skipping insertion in model container [2019-12-07 18:23:48,200 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-12-07 18:23:48,200 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 06:23:48" (3/3) ... [2019-12-07 18:23:48,201 INFO L371 chiAutomizerObserver]: Analyzing ICFG verisec_NetBSD-libc_loop.i [2019-12-07 18:23:48,236 INFO L356 BuchiCegarLoop]: Interprodecural is true [2019-12-07 18:23:48,236 INFO L357 BuchiCegarLoop]: Hoare is false [2019-12-07 18:23:48,236 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-12-07 18:23:48,237 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 18:23:48,237 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 18:23:48,237 INFO L361 BuchiCegarLoop]: Difference is false [2019-12-07 18:23:48,237 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 18:23:48,237 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-12-07 18:23:48,246 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 13 states. [2019-12-07 18:23:48,259 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2019-12-07 18:23:48,259 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 18:23:48,259 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 18:23:48,263 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2019-12-07 18:23:48,263 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2019-12-07 18:23:48,263 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2019-12-07 18:23:48,263 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 13 states. [2019-12-07 18:23:48,264 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2019-12-07 18:23:48,264 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 18:23:48,265 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 18:23:48,265 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2019-12-07 18:23:48,265 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2019-12-07 18:23:48,270 INFO L794 eck$LassoCheckResult]: Stem: 8#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;~tmp~0.base, ~tmp~0.offset := 0, 0; 7#L-1true havoc main_#res;havoc main_#t~ret1, main_~#pathbuf~0.base, main_~#pathbuf~0.offset, main_~bound~0.base, main_~bound~0.offset;call main_~#pathbuf~0.base, main_~#pathbuf~0.offset := #Ultimate.allocOnStack(8);main_~bound~0.base, main_~bound~0.offset := main_~#pathbuf~0.base, 32 + main_~#pathbuf~0.offset - 4;~tmp~0.base, ~tmp~0.offset := main_~#pathbuf~0.base, 8 + main_~#pathbuf~0.offset - 4;glob2_#in~pathbuf.base, glob2_#in~pathbuf.offset, glob2_#in~pathlim.base, glob2_#in~pathlim.offset := main_~#pathbuf~0.base, main_~#pathbuf~0.offset, main_~bound~0.base, main_~bound~0.offset;havoc glob2_#res;havoc glob2_#t~post0.base, glob2_#t~post0.offset, glob2_~pathbuf.base, glob2_~pathbuf.offset, glob2_~pathlim.base, glob2_~pathlim.offset, glob2_~p~0.base, glob2_~p~0.offset;glob2_~pathbuf.base, glob2_~pathbuf.offset := glob2_#in~pathbuf.base, glob2_#in~pathbuf.offset;glob2_~pathlim.base, glob2_~pathlim.offset := glob2_#in~pathlim.base, glob2_#in~pathlim.offset;havoc glob2_~p~0.base, glob2_~p~0.offset;glob2_~p~0.base, glob2_~p~0.offset := glob2_~pathbuf.base, glob2_~pathbuf.offset; 14#L18-4true [2019-12-07 18:23:48,270 INFO L796 eck$LassoCheckResult]: Loop: 14#L18-4true assume glob2_~p~0.base == glob2_~pathlim.base; 6#L18-1true assume !!(glob2_~p~0.offset <= glob2_~pathlim.offset);assume glob2_~p~0.base == ~tmp~0.base;__VERIFIER_assert_#in~cond := (if glob2_~p~0.offset <= ~tmp~0.offset then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; 15#L4true assume !(0 == __VERIFIER_assert_~cond); 10#L4-2true call write~int(1, glob2_~p~0.base, glob2_~p~0.offset, 4); 3#L18-3true glob2_#t~post0.base, glob2_#t~post0.offset := glob2_~p~0.base, glob2_~p~0.offset;glob2_~p~0.base, glob2_~p~0.offset := glob2_#t~post0.base, 4 + glob2_#t~post0.offset;havoc glob2_#t~post0.base, glob2_#t~post0.offset; 14#L18-4true [2019-12-07 18:23:48,274 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:23:48,274 INFO L82 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2019-12-07 18:23:48,280 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:23:48,280 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [10496328] [2019-12-07 18:23:48,280 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:23:48,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:23:48,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:23:48,368 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 18:23:48,368 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:23:48,368 INFO L82 PathProgramCache]: Analyzing trace with hash 34515950, now seen corresponding path program 1 times [2019-12-07 18:23:48,369 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:23:48,369 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1788425983] [2019-12-07 18:23:48,369 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:23:48,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:23:48,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:23:48,389 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 18:23:48,390 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:23:48,390 INFO L82 PathProgramCache]: Analyzing trace with hash 1805955436, now seen corresponding path program 1 times [2019-12-07 18:23:48,391 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:23:48,391 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2140522262] [2019-12-07 18:23:48,391 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:23:48,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:23:48,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:23:48,424 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 18:23:48,610 WARN L192 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 63 [2019-12-07 18:23:48,667 INFO L210 LassoAnalysis]: Preferences: [2019-12-07 18:23:48,668 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-12-07 18:23:48,668 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-12-07 18:23:48,668 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-12-07 18:23:48,668 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-12-07 18:23:48,668 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:23:48,669 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-12-07 18:23:48,669 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-12-07 18:23:48,669 INFO L133 ssoRankerPreferences]: Filename of dumped script: verisec_NetBSD-libc_loop.i_Iteration1_Lasso [2019-12-07 18:23:48,669 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-12-07 18:23:48,669 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-12-07 18:23:48,685 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:23:48,689 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:23:48,690 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:23:48,691 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:23:48,830 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:23:48,832 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:23:48,833 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:23:48,835 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:23:49,096 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-12-07 18:23:49,099 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c151f09a-f747-4560-ab57-dd51dbdbd97e/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) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:23:49,103 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 [2019-12-07 18:23:49,105 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 18:23:49,105 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 18:23:49,106 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 18:23:49,106 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 18:23:49,106 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 18:23:49,107 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 18:23:49,108 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 18:23:49,109 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c151f09a-f747-4560-ab57-dd51dbdbd97e/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) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:23:49,114 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 [2019-12-07 18:23:49,116 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 18:23:49,116 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 18:23:49,116 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 18:23:49,116 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 18:23:49,116 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 18:23:49,117 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 18:23:49,117 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 18:23:49,118 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c151f09a-f747-4560-ab57-dd51dbdbd97e/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) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:23:49,122 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 [2019-12-07 18:23:49,124 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 18:23:49,124 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 18:23:49,124 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 18:23:49,124 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 18:23:49,124 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 18:23:49,125 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 18:23:49,125 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 18:23:49,127 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c151f09a-f747-4560-ab57-dd51dbdbd97e/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 [2019-12-07 18:23:49,135 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 [2019-12-07 18:23:49,137 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 18:23:49,137 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 18:23:49,137 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 18:23:49,137 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 18:23:49,146 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 18:23:49,146 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 18:23:49,156 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c151f09a-f747-4560-ab57-dd51dbdbd97e/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 [2019-12-07 18:23:49,160 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 [2019-12-07 18:23:49,162 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 18:23:49,162 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 18:23:49,162 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 18:23:49,163 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 18:23:49,163 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 18:23:49,163 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 18:23:49,164 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 18:23:49,165 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c151f09a-f747-4560-ab57-dd51dbdbd97e/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) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:23:49,170 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 [2019-12-07 18:23:49,172 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 18:23:49,172 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 18:23:49,172 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 18:23:49,172 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 18:23:49,183 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 18:23:49,183 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 18:23:49,198 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-12-07 18:23:49,220 INFO L443 ModelExtractionUtils]: Simplification made 8 calls to the SMT solver. [2019-12-07 18:23:49,220 INFO L444 ModelExtractionUtils]: 25 out of 40 variables were initially zero. Simplification set additionally 11 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c151f09a-f747-4560-ab57-dd51dbdbd97e/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) Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:23:49,228 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-12-07 18:23:49,234 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2019-12-07 18:23:49,234 INFO L510 LassoAnalysis]: Proved termination. [2019-12-07 18:23:49,234 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_glob2_~p~0.offset, ULTIMATE.start_glob2_~pathlim.offset) = -1*ULTIMATE.start_glob2_~p~0.offset + 1*ULTIMATE.start_glob2_~pathlim.offset + 2 Supporting invariants [] [2019-12-07 18:23:49,248 INFO L297 tatePredicateManager]: 3 out of 3 supporting invariants were superfluous and have been removed [2019-12-07 18:23:49,271 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:23:49,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:23:49,285 INFO L264 TraceCheckSpWp]: Trace formula consists of 48 conjuncts, 2 conjunts are in the unsatisfiable core [2019-12-07 18:23:49,286 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 18:23:49,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:23:49,298 INFO L264 TraceCheckSpWp]: Trace formula consists of 21 conjuncts, 4 conjunts are in the unsatisfiable core [2019-12-07 18:23:49,299 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 18:23:49,309 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 18:23:49,321 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2019-12-07 18:23:49,322 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 13 states. Second operand 4 states. [2019-12-07 18:23:49,360 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 13 states.. Second operand 4 states. Result 35 states and 41 transitions. Complement of second has 7 states. [2019-12-07 18:23:49,361 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2019-12-07 18:23:49,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2019-12-07 18:23:49,363 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 28 transitions. [2019-12-07 18:23:49,364 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 28 transitions. Stem has 2 letters. Loop has 5 letters. [2019-12-07 18:23:49,365 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 18:23:49,365 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 28 transitions. Stem has 7 letters. Loop has 5 letters. [2019-12-07 18:23:49,366 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 18:23:49,366 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 28 transitions. Stem has 2 letters. Loop has 10 letters. [2019-12-07 18:23:49,366 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 18:23:49,367 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 35 states and 41 transitions. [2019-12-07 18:23:49,368 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-12-07 18:23:49,370 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 35 states to 0 states and 0 transitions. [2019-12-07 18:23:49,371 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2019-12-07 18:23:49,371 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2019-12-07 18:23:49,372 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2019-12-07 18:23:49,372 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-12-07 18:23:49,372 INFO L688 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-07 18:23:49,372 INFO L711 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-07 18:23:49,372 INFO L591 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-07 18:23:49,372 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2019-12-07 18:23:49,373 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2019-12-07 18:23:49,373 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-12-07 18:23:49,373 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2019-12-07 18:23:49,377 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 07.12 06:23:49 BoogieIcfgContainer [2019-12-07 18:23:49,377 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-12-07 18:23:49,378 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-07 18:23:49,378 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-07 18:23:49,378 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-07 18:23:49,378 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 06:23:48" (3/4) ... [2019-12-07 18:23:49,381 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-12-07 18:23:49,381 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-07 18:23:49,382 INFO L168 Benchmark]: Toolchain (without parser) took 1582.53 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 79.2 MB). Free memory was 939.8 MB in the beginning and 823.1 MB in the end (delta: 116.6 MB). Peak memory consumption was 195.8 MB. Max. memory is 11.5 GB. [2019-12-07 18:23:49,382 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 955.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 18:23:49,383 INFO L168 Benchmark]: CACSL2BoogieTranslator took 181.77 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 79.2 MB). Free memory was 939.8 MB in the beginning and 1.1 GB in the end (delta: -134.3 MB). Peak memory consumption was 23.0 MB. Max. memory is 11.5 GB. [2019-12-07 18:23:49,384 INFO L168 Benchmark]: Boogie Procedure Inliner took 23.00 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 18:23:49,384 INFO L168 Benchmark]: Boogie Preprocessor took 18.14 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2019-12-07 18:23:49,384 INFO L168 Benchmark]: RCFGBuilder took 170.95 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 17.6 MB). Peak memory consumption was 17.6 MB. Max. memory is 11.5 GB. [2019-12-07 18:23:49,385 INFO L168 Benchmark]: BuchiAutomizer took 1182.49 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 823.1 MB in the end (delta: 228.0 MB). Peak memory consumption was 228.0 MB. Max. memory is 11.5 GB. [2019-12-07 18:23:49,385 INFO L168 Benchmark]: Witness Printer took 3.24 ms. Allocated memory is still 1.1 GB. Free memory is still 823.1 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 18:23:49,388 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 955.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 181.77 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 79.2 MB). Free memory was 939.8 MB in the beginning and 1.1 GB in the end (delta: -134.3 MB). Peak memory consumption was 23.0 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 23.00 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 18.14 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 170.95 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 17.6 MB). Peak memory consumption was 17.6 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 1182.49 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 823.1 MB in the end (delta: 228.0 MB). Peak memory consumption was 228.0 MB. Max. memory is 11.5 GB. * Witness Printer took 3.24 ms. Allocated memory is still 1.1 GB. Free memory is still 823.1 MB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 1 terminating modules (0 trivial, 1 deterministic, 0 nondeterministic). One deterministic module has affine ranking function -1 * p + pathlim + 2 and consists of 5 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.1s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 0.9s. Construction of modules took 0.0s. Büchi inclusion checks took 0.1s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 0. Automata minimization No data available. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 0 states and ocurred in iteration 1. Nontrivial modules had stage [1, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 9 SDtfs, 10 SDslu, 12 SDs, 0 SdLazy, 8 SolverSat, 2 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso1 LassoPreprocessingBenchmarks: Lassos: inital144 mio100 ax100 hnf100 lsp95 ukn94 mio100 lsp56 div100 bol100 ite110 ukn100 eq191 hnf89 smp84 dnf100 smp100 tf100 neg99 sie101 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 27ms VariablesStem: 9 VariablesLoop: 5 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! Received shutdown request...