./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/loop-zilu/benchmark33_linear.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version e943c265 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99186364-47bd-49a1-9fe3-527b70caffc1/bin/utaipan-tZwUujhuQw/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99186364-47bd-49a1-9fe3-527b70caffc1/bin/utaipan-tZwUujhuQw/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99186364-47bd-49a1-9fe3-527b70caffc1/bin/utaipan-tZwUujhuQw/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99186364-47bd-49a1-9fe3-527b70caffc1/bin/utaipan-tZwUujhuQw/config/TaipanReach.xml -i ../../sv-benchmarks/c/loop-zilu/benchmark33_linear.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99186364-47bd-49a1-9fe3-527b70caffc1/bin/utaipan-tZwUujhuQw/config/svcomp-Overflow-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99186364-47bd-49a1-9fe3-527b70caffc1/bin/utaipan-tZwUujhuQw --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 0401d70d4c8ea9c434a0d70dc3e862e9d9144b8f78274b8265998d58d02bfd69 ..................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-e943c26 [2021-10-20 06:20:32,924 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-20 06:20:32,926 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-20 06:20:32,969 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-20 06:20:32,970 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-20 06:20:32,971 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-20 06:20:32,973 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-20 06:20:32,976 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-20 06:20:32,979 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-20 06:20:32,981 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-20 06:20:32,982 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-20 06:20:32,984 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-20 06:20:32,985 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-20 06:20:32,986 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-20 06:20:32,988 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-20 06:20:32,991 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-20 06:20:32,992 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-20 06:20:32,994 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-20 06:20:32,997 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-20 06:20:33,000 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-20 06:20:33,002 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-20 06:20:33,004 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-20 06:20:33,006 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-20 06:20:33,007 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-20 06:20:33,012 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-20 06:20:33,013 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-20 06:20:33,013 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-20 06:20:33,015 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-20 06:20:33,015 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-20 06:20:33,017 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-20 06:20:33,018 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-20 06:20:33,019 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-20 06:20:33,020 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-20 06:20:33,022 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-20 06:20:33,024 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-20 06:20:33,024 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-20 06:20:33,025 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-20 06:20:33,026 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-20 06:20:33,026 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-20 06:20:33,027 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-20 06:20:33,028 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-20 06:20:33,029 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99186364-47bd-49a1-9fe3-527b70caffc1/bin/utaipan-tZwUujhuQw/config/svcomp-Overflow-32bit-Taipan_Default.epf [2021-10-20 06:20:33,064 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-20 06:20:33,064 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-20 06:20:33,065 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-20 06:20:33,066 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-20 06:20:33,066 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-20 06:20:33,066 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-20 06:20:33,067 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-10-20 06:20:33,067 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-20 06:20:33,067 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-20 06:20:33,068 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-10-20 06:20:33,068 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-10-20 06:20:33,068 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-20 06:20:33,069 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-10-20 06:20:33,069 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-10-20 06:20:33,069 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-10-20 06:20:33,070 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-20 06:20:33,070 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-20 06:20:33,071 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-20 06:20:33,071 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-20 06:20:33,071 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-20 06:20:33,072 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-20 06:20:33,072 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-20 06:20:33,072 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-20 06:20:33,073 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-20 06:20:33,073 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2021-10-20 06:20:33,073 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-20 06:20:33,074 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-20 06:20:33,074 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-20 06:20:33,074 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-20 06:20:33,075 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-20 06:20:33,075 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-20 06:20:33,075 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-20 06:20:33,076 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-20 06:20:33,076 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-20 06:20:33,076 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-20 06:20:33,077 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-10-20 06:20:33,077 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-20 06:20:33,077 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-20 06:20:33,077 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-20 06:20:33,078 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-20 06:20:33,078 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99186364-47bd-49a1-9fe3-527b70caffc1/bin/utaipan-tZwUujhuQw/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99186364-47bd-49a1-9fe3-527b70caffc1/bin/utaipan-tZwUujhuQw Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0401d70d4c8ea9c434a0d70dc3e862e9d9144b8f78274b8265998d58d02bfd69 [2021-10-20 06:20:33,408 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-20 06:20:33,434 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-20 06:20:33,437 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-20 06:20:33,439 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-20 06:20:33,440 INFO L275 PluginConnector]: CDTParser initialized [2021-10-20 06:20:33,441 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99186364-47bd-49a1-9fe3-527b70caffc1/bin/utaipan-tZwUujhuQw/../../sv-benchmarks/c/loop-zilu/benchmark33_linear.i [2021-10-20 06:20:33,525 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99186364-47bd-49a1-9fe3-527b70caffc1/bin/utaipan-tZwUujhuQw/data/5937308bd/51e43ce2f6f3401bbeb4f74ae4a2c5f0/FLAG2a0ffee91 [2021-10-20 06:20:34,094 INFO L306 CDTParser]: Found 1 translation units. [2021-10-20 06:20:34,095 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99186364-47bd-49a1-9fe3-527b70caffc1/sv-benchmarks/c/loop-zilu/benchmark33_linear.i [2021-10-20 06:20:34,109 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99186364-47bd-49a1-9fe3-527b70caffc1/bin/utaipan-tZwUujhuQw/data/5937308bd/51e43ce2f6f3401bbeb4f74ae4a2c5f0/FLAG2a0ffee91 [2021-10-20 06:20:34,473 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99186364-47bd-49a1-9fe3-527b70caffc1/bin/utaipan-tZwUujhuQw/data/5937308bd/51e43ce2f6f3401bbeb4f74ae4a2c5f0 [2021-10-20 06:20:34,481 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-20 06:20:34,483 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-20 06:20:34,491 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-20 06:20:34,491 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-20 06:20:34,495 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-20 06:20:34,496 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 06:20:34" (1/1) ... [2021-10-20 06:20:34,498 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@35481559 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:20:34, skipping insertion in model container [2021-10-20 06:20:34,501 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 06:20:34" (1/1) ... [2021-10-20 06:20:34,508 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-20 06:20:34,524 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-20 06:20:34,736 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99186364-47bd-49a1-9fe3-527b70caffc1/sv-benchmarks/c/loop-zilu/benchmark33_linear.i[868,881] [2021-10-20 06:20:34,745 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-20 06:20:34,755 INFO L203 MainTranslator]: Completed pre-run [2021-10-20 06:20:34,773 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99186364-47bd-49a1-9fe3-527b70caffc1/sv-benchmarks/c/loop-zilu/benchmark33_linear.i[868,881] [2021-10-20 06:20:34,776 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-20 06:20:34,790 INFO L208 MainTranslator]: Completed translation [2021-10-20 06:20:34,790 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:20:34 WrapperNode [2021-10-20 06:20:34,790 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-20 06:20:34,792 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-20 06:20:34,792 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-20 06:20:34,792 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-20 06:20:34,800 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:20:34" (1/1) ... [2021-10-20 06:20:34,807 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:20:34" (1/1) ... [2021-10-20 06:20:34,828 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-20 06:20:34,829 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-20 06:20:34,830 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-20 06:20:34,830 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-20 06:20:34,841 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:20:34" (1/1) ... [2021-10-20 06:20:34,841 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:20:34" (1/1) ... [2021-10-20 06:20:34,843 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:20:34" (1/1) ... [2021-10-20 06:20:34,843 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:20:34" (1/1) ... [2021-10-20 06:20:34,847 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:20:34" (1/1) ... [2021-10-20 06:20:34,852 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:20:34" (1/1) ... [2021-10-20 06:20:34,853 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:20:34" (1/1) ... [2021-10-20 06:20:34,855 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-20 06:20:34,856 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-20 06:20:34,856 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-20 06:20:34,856 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-20 06:20:34,858 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:20:34" (1/1) ... [2021-10-20 06:20:34,866 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-20 06:20:34,879 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99186364-47bd-49a1-9fe3-527b70caffc1/bin/utaipan-tZwUujhuQw/z3 [2021-10-20 06:20:34,898 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99186364-47bd-49a1-9fe3-527b70caffc1/bin/utaipan-tZwUujhuQw/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-20 06:20:34,923 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99186364-47bd-49a1-9fe3-527b70caffc1/bin/utaipan-tZwUujhuQw/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-20 06:20:34,950 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-20 06:20:34,950 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-20 06:20:34,950 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-20 06:20:34,951 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-20 06:20:35,225 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-20 06:20:35,226 INFO L299 CfgBuilder]: Removed 7 assume(true) statements. [2021-10-20 06:20:35,229 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 06:20:35 BoogieIcfgContainer [2021-10-20 06:20:35,229 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-20 06:20:35,232 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-20 06:20:35,232 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-20 06:20:35,243 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-20 06:20:35,243 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.10 06:20:34" (1/3) ... [2021-10-20 06:20:35,244 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3add2cd4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.10 06:20:35, skipping insertion in model container [2021-10-20 06:20:35,245 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:20:34" (2/3) ... [2021-10-20 06:20:35,259 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3add2cd4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.10 06:20:35, skipping insertion in model container [2021-10-20 06:20:35,260 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 06:20:35" (3/3) ... [2021-10-20 06:20:35,261 INFO L111 eAbstractionObserver]: Analyzing ICFG benchmark33_linear.i [2021-10-20 06:20:35,268 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-20 06:20:35,275 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2021-10-20 06:20:35,378 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-20 06:20:35,399 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-10-20 06:20:35,399 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-10-20 06:20:35,417 INFO L276 IsEmpty]: Start isEmpty. Operand has 9 states, 6 states have (on average 1.6666666666666667) internal successors, (10), 8 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-20 06:20:35,423 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-10-20 06:20:35,423 INFO L504 BasicCegarLoop]: Found error trace [2021-10-20 06:20:35,424 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2021-10-20 06:20:35,425 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2021-10-20 06:20:35,432 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-20 06:20:35,433 INFO L82 PathProgramCache]: Analyzing trace with hash 1973446, now seen corresponding path program 1 times [2021-10-20 06:20:35,444 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-20 06:20:35,445 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [283948237] [2021-10-20 06:20:35,446 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-20 06:20:35,447 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-20 06:20:35,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-20 06:20:35,655 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-20 06:20:35,656 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-20 06:20:35,657 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [283948237] [2021-10-20 06:20:35,658 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [283948237] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-20 06:20:35,658 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-20 06:20:35,659 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-20 06:20:35,661 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [933905713] [2021-10-20 06:20:35,667 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-20 06:20:35,668 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-20 06:20:35,685 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-20 06:20:35,686 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-20 06:20:35,689 INFO L87 Difference]: Start difference. First operand has 9 states, 6 states have (on average 1.6666666666666667) internal successors, (10), 8 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-20 06:20:35,719 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-20 06:20:35,719 INFO L93 Difference]: Finished difference Result 9 states and 10 transitions. [2021-10-20 06:20:35,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-20 06:20:35,722 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2021-10-20 06:20:35,722 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-20 06:20:35,731 INFO L225 Difference]: With dead ends: 9 [2021-10-20 06:20:35,732 INFO L226 Difference]: Without dead ends: 6 [2021-10-20 06:20:35,735 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 6.8ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-20 06:20:35,755 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6 states. [2021-10-20 06:20:35,767 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6 to 6. [2021-10-20 06:20:35,769 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6 states, 5 states have (on average 1.2) internal successors, (6), 5 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-20 06:20:35,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 6 transitions. [2021-10-20 06:20:35,771 INFO L78 Accepts]: Start accepts. Automaton has 6 states and 6 transitions. Word has length 4 [2021-10-20 06:20:35,772 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-20 06:20:35,772 INFO L470 AbstractCegarLoop]: Abstraction has 6 states and 6 transitions. [2021-10-20 06:20:35,773 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-20 06:20:35,773 INFO L276 IsEmpty]: Start isEmpty. Operand 6 states and 6 transitions. [2021-10-20 06:20:35,773 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-10-20 06:20:35,774 INFO L504 BasicCegarLoop]: Found error trace [2021-10-20 06:20:35,774 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2021-10-20 06:20:35,774 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-20 06:20:35,775 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2021-10-20 06:20:35,776 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-20 06:20:35,777 INFO L82 PathProgramCache]: Analyzing trace with hash 61176876, now seen corresponding path program 1 times [2021-10-20 06:20:35,777 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-20 06:20:35,777 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [917772127] [2021-10-20 06:20:35,778 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-20 06:20:35,778 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-20 06:20:35,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-20 06:20:35,827 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-20 06:20:35,828 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-20 06:20:35,828 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [917772127] [2021-10-20 06:20:35,828 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [917772127] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-20 06:20:35,829 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-20 06:20:35,829 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-20 06:20:35,829 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1763376262] [2021-10-20 06:20:35,831 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-20 06:20:35,831 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-20 06:20:35,833 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-20 06:20:35,833 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-20 06:20:35,834 INFO L87 Difference]: Start difference. First operand 6 states and 6 transitions. Second operand has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-20 06:20:35,856 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-20 06:20:35,857 INFO L93 Difference]: Finished difference Result 6 states and 6 transitions. [2021-10-20 06:20:35,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-20 06:20:35,858 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2021-10-20 06:20:35,858 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-20 06:20:35,858 INFO L225 Difference]: With dead ends: 6 [2021-10-20 06:20:35,858 INFO L226 Difference]: Without dead ends: 0 [2021-10-20 06:20:35,860 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 15.8ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-20 06:20:35,860 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-10-20 06:20:35,860 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-10-20 06:20:35,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-20 06:20:35,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-10-20 06:20:35,861 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 5 [2021-10-20 06:20:35,861 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-20 06:20:35,862 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-20 06:20:35,862 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-20 06:20:35,862 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-10-20 06:20:35,863 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-10-20 06:20:35,866 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-20 06:20:35,866 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-20 06:20:35,867 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-20 06:20:35,869 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-10-20 06:20:35,874 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-20 06:20:35,876 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-20 06:20:35,884 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 23) no Hoare annotation was computed. [2021-10-20 06:20:35,884 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-10-20 06:20:35,884 INFO L857 garLoopResultBuilder]: For program point L23(line 23) no Hoare annotation was computed. [2021-10-20 06:20:35,885 INFO L857 garLoopResultBuilder]: For program point L23-1(line 23) no Hoare annotation was computed. [2021-10-20 06:20:35,885 INFO L857 garLoopResultBuilder]: For program point L21(line 21) no Hoare annotation was computed. [2021-10-20 06:20:35,885 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 23) no Hoare annotation was computed. [2021-10-20 06:20:35,886 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-10-20 06:20:35,886 INFO L860 garLoopResultBuilder]: At program point L26(lines 19 27) the Hoare annotation is: true [2021-10-20 06:20:35,887 INFO L853 garLoopResultBuilder]: At program point L22-2(lines 22 24) the Hoare annotation is: (<= 0 ULTIMATE.start_main_~x~0) [2021-10-20 06:20:35,892 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-20 06:20:35,906 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.10 06:20:35 BoogieIcfgContainer [2021-10-20 06:20:35,906 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-20 06:20:35,907 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-20 06:20:35,907 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-20 06:20:35,907 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-20 06:20:35,908 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 06:20:35" (3/4) ... [2021-10-20 06:20:35,912 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-10-20 06:20:35,921 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2021-10-20 06:20:35,922 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2021-10-20 06:20:35,922 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-20 06:20:35,923 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-20 06:20:35,961 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99186364-47bd-49a1-9fe3-527b70caffc1/bin/utaipan-tZwUujhuQw/witness.graphml [2021-10-20 06:20:35,962 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-20 06:20:35,964 INFO L168 Benchmark]: Toolchain (without parser) took 1480.30 ms. Allocated memory was 86.0 MB in the beginning and 115.3 MB in the end (delta: 29.4 MB). Free memory was 48.6 MB in the beginning and 51.5 MB in the end (delta: -2.9 MB). Peak memory consumption was 24.6 MB. Max. memory is 16.1 GB. [2021-10-20 06:20:35,965 INFO L168 Benchmark]: CDTParser took 0.30 ms. Allocated memory is still 86.0 MB. Free memory is still 64.7 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-20 06:20:35,966 INFO L168 Benchmark]: CACSL2BoogieTranslator took 300.04 ms. Allocated memory was 86.0 MB in the beginning and 115.3 MB in the end (delta: 29.4 MB). Free memory was 48.4 MB in the beginning and 91.3 MB in the end (delta: -42.9 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-20 06:20:35,967 INFO L168 Benchmark]: Boogie Procedure Inliner took 36.99 ms. Allocated memory is still 115.3 MB. Free memory was 91.3 MB in the beginning and 89.7 MB in the end (delta: 1.6 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-20 06:20:35,967 INFO L168 Benchmark]: Boogie Preprocessor took 25.60 ms. Allocated memory is still 115.3 MB. Free memory was 89.7 MB in the beginning and 88.7 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-20 06:20:35,968 INFO L168 Benchmark]: RCFGBuilder took 373.71 ms. Allocated memory is still 115.3 MB. Free memory was 88.7 MB in the beginning and 78.2 MB in the end (delta: 10.5 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-10-20 06:20:35,969 INFO L168 Benchmark]: TraceAbstraction took 674.39 ms. Allocated memory is still 115.3 MB. Free memory was 77.7 MB in the beginning and 54.1 MB in the end (delta: 23.6 MB). Peak memory consumption was 25.2 MB. Max. memory is 16.1 GB. [2021-10-20 06:20:35,970 INFO L168 Benchmark]: Witness Printer took 54.92 ms. Allocated memory is still 115.3 MB. Free memory was 53.6 MB in the beginning and 51.5 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-20 06:20:35,974 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30 ms. Allocated memory is still 86.0 MB. Free memory is still 64.7 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 300.04 ms. Allocated memory was 86.0 MB in the beginning and 115.3 MB in the end (delta: 29.4 MB). Free memory was 48.4 MB in the beginning and 91.3 MB in the end (delta: -42.9 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 36.99 ms. Allocated memory is still 115.3 MB. Free memory was 91.3 MB in the beginning and 89.7 MB in the end (delta: 1.6 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 25.60 ms. Allocated memory is still 115.3 MB. Free memory was 89.7 MB in the beginning and 88.7 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 373.71 ms. Allocated memory is still 115.3 MB. Free memory was 88.7 MB in the beginning and 78.2 MB in the end (delta: 10.5 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * TraceAbstraction took 674.39 ms. Allocated memory is still 115.3 MB. Free memory was 77.7 MB in the beginning and 54.1 MB in the end (delta: 23.6 MB). Peak memory consumption was 25.2 MB. Max. memory is 16.1 GB. * Witness Printer took 54.92 ms. Allocated memory is still 115.3 MB. Free memory was 53.6 MB in the beginning and 51.5 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 23]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 23]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 9 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 516.0ms, OverallIterations: 2, TraceHistogramMax: 1, EmptinessCheckTime: 12.2ms, AutomataDifference: 94.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 15.9ms, InitialAbstractionConstructionTime: 12.4ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 8 SDtfs, 4 SDslu, 5 SDs, 0 SdLazy, 11 SolverSat, 1 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 18.8ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 22.7ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=9occurred in iteration=0, InterpolantAutomatonStates: 7, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 19.1ms AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0ms HoareAnnotationTime, 2 LocationsWithAnnotation, 2 PreInvPairs, 2 NumberOfFragments, 4 HoareAnnotationTreeSize, 2 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 5.3ms HoareSimplificationTime, 2 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 2.8ms HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 8.1ms SsaConstructionTime, 46.7ms SatisfiabilityAnalysisTime, 107.1ms InterpolantComputationTime, 9 NumberOfCodeBlocks, 9 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 7 ConstructedInterpolants, 0 QuantifiedInterpolants, 15 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold - InvariantResult [Line: 19]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 22]: Loop Invariant Derived loop invariant: 0 <= x RESULT: Ultimate proved your program to be correct! [2021-10-20 06:20:36,030 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99186364-47bd-49a1-9fe3-527b70caffc1/bin/utaipan-tZwUujhuQw/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...