./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-crafted/aaron3-2.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 47ea0209 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66cd51c2-869f-4eff-bac4-551013267883/bin/utaipan-UUZaoUuFF8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66cd51c2-869f-4eff-bac4-551013267883/bin/utaipan-UUZaoUuFF8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66cd51c2-869f-4eff-bac4-551013267883/bin/utaipan-UUZaoUuFF8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66cd51c2-869f-4eff-bac4-551013267883/bin/utaipan-UUZaoUuFF8/config/TaipanReach.xml -i ../../sv-benchmarks/c/termination-crafted/aaron3-2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66cd51c2-869f-4eff-bac4-551013267883/bin/utaipan-UUZaoUuFF8/config/svcomp-Overflow-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66cd51c2-869f-4eff-bac4-551013267883/bin/utaipan-UUZaoUuFF8 --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 64bit --witnessprinter.graph.data.programhash 54ae206843bb8704ccad39fc8c6d01650d81de6704a622ff5601485191b31481 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-47ea020 [2021-11-07 00:53:41,896 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-07 00:53:41,900 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-07 00:53:41,964 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-07 00:53:41,965 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-07 00:53:41,969 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-07 00:53:41,971 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-07 00:53:41,976 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-07 00:53:41,979 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-07 00:53:41,985 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-07 00:53:41,986 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-07 00:53:41,988 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-07 00:53:41,989 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-07 00:53:41,992 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-07 00:53:41,993 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-07 00:53:42,000 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-07 00:53:42,002 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-07 00:53:42,003 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-07 00:53:42,006 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-07 00:53:42,017 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-07 00:53:42,019 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-07 00:53:42,021 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-07 00:53:42,024 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-07 00:53:42,025 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-07 00:53:42,035 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-07 00:53:42,035 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-07 00:53:42,036 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-07 00:53:42,038 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-07 00:53:42,039 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-07 00:53:42,040 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-07 00:53:42,041 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-07 00:53:42,042 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-07 00:53:42,044 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-07 00:53:42,046 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-07 00:53:42,047 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-07 00:53:42,048 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-07 00:53:42,049 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-07 00:53:42,049 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-07 00:53:42,049 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-07 00:53:42,050 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-07 00:53:42,051 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-07 00:53:42,052 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66cd51c2-869f-4eff-bac4-551013267883/bin/utaipan-UUZaoUuFF8/config/svcomp-Overflow-64bit-Taipan_Default.epf [2021-11-07 00:53:42,100 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-07 00:53:42,100 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-07 00:53:42,102 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-07 00:53:42,102 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-07 00:53:42,102 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-07 00:53:42,103 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-07 00:53:42,103 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-07 00:53:42,103 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-07 00:53:42,110 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-07 00:53:42,110 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-07 00:53:42,112 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-07 00:53:42,112 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-07 00:53:42,112 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-07 00:53:42,113 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-07 00:53:42,113 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-07 00:53:42,114 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-07 00:53:42,115 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-07 00:53:42,115 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-07 00:53:42,115 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-07 00:53:42,115 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-07 00:53:42,116 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-07 00:53:42,116 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-07 00:53:42,116 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2021-11-07 00:53:42,116 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-07 00:53:42,117 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-07 00:53:42,117 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-07 00:53:42,117 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-07 00:53:42,117 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-07 00:53:42,118 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 00:53:42,119 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-07 00:53:42,120 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-07 00:53:42,120 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-07 00:53:42,120 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-07 00:53:42,121 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-07 00:53:42,121 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-07 00:53:42,121 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-07 00:53:42,122 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-07 00:53:42,122 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_66cd51c2-869f-4eff-bac4-551013267883/bin/utaipan-UUZaoUuFF8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66cd51c2-869f-4eff-bac4-551013267883/bin/utaipan-UUZaoUuFF8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 54ae206843bb8704ccad39fc8c6d01650d81de6704a622ff5601485191b31481 [2021-11-07 00:53:42,486 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-07 00:53:42,516 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-07 00:53:42,520 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-07 00:53:42,521 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-07 00:53:42,522 INFO L275 PluginConnector]: CDTParser initialized [2021-11-07 00:53:42,523 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66cd51c2-869f-4eff-bac4-551013267883/bin/utaipan-UUZaoUuFF8/../../sv-benchmarks/c/termination-crafted/aaron3-2.c [2021-11-07 00:53:42,621 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66cd51c2-869f-4eff-bac4-551013267883/bin/utaipan-UUZaoUuFF8/data/b8ae1a00b/9894d24d51f44bb680618bde465f0427/FLAG7d18d9d74 [2021-11-07 00:53:43,107 INFO L306 CDTParser]: Found 1 translation units. [2021-11-07 00:53:43,108 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66cd51c2-869f-4eff-bac4-551013267883/sv-benchmarks/c/termination-crafted/aaron3-2.c [2021-11-07 00:53:43,119 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66cd51c2-869f-4eff-bac4-551013267883/bin/utaipan-UUZaoUuFF8/data/b8ae1a00b/9894d24d51f44bb680618bde465f0427/FLAG7d18d9d74 [2021-11-07 00:53:43,472 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66cd51c2-869f-4eff-bac4-551013267883/bin/utaipan-UUZaoUuFF8/data/b8ae1a00b/9894d24d51f44bb680618bde465f0427 [2021-11-07 00:53:43,474 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-07 00:53:43,476 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-07 00:53:43,478 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-07 00:53:43,479 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-07 00:53:43,482 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-07 00:53:43,483 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 12:53:43" (1/1) ... [2021-11-07 00:53:43,486 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2e066634 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:53:43, skipping insertion in model container [2021-11-07 00:53:43,486 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 12:53:43" (1/1) ... [2021-11-07 00:53:43,494 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-07 00:53:43,509 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 00:53:43,682 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 00:53:43,712 INFO L203 MainTranslator]: Completed pre-run [2021-11-07 00:53:43,727 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 00:53:43,739 INFO L208 MainTranslator]: Completed translation [2021-11-07 00:53:43,739 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:53:43 WrapperNode [2021-11-07 00:53:43,739 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-07 00:53:43,741 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-07 00:53:43,741 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-07 00:53:43,741 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-07 00:53:43,749 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:53:43" (1/1) ... [2021-11-07 00:53:43,754 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:53:43" (1/1) ... [2021-11-07 00:53:43,772 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-07 00:53:43,773 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-07 00:53:43,773 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-07 00:53:43,773 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-07 00:53:43,781 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:53:43" (1/1) ... [2021-11-07 00:53:43,781 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:53:43" (1/1) ... [2021-11-07 00:53:43,782 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:53:43" (1/1) ... [2021-11-07 00:53:43,783 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:53:43" (1/1) ... [2021-11-07 00:53:43,785 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:53:43" (1/1) ... [2021-11-07 00:53:43,789 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:53:43" (1/1) ... [2021-11-07 00:53:43,790 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:53:43" (1/1) ... [2021-11-07 00:53:43,791 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-07 00:53:43,792 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-07 00:53:43,792 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-07 00:53:43,792 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-07 00:53:43,793 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:53:43" (1/1) ... [2021-11-07 00:53:43,812 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 00:53:43,824 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66cd51c2-869f-4eff-bac4-551013267883/bin/utaipan-UUZaoUuFF8/z3 [2021-11-07 00:53:43,839 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66cd51c2-869f-4eff-bac4-551013267883/bin/utaipan-UUZaoUuFF8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-07 00:53:43,868 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66cd51c2-869f-4eff-bac4-551013267883/bin/utaipan-UUZaoUuFF8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-07 00:53:43,888 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-07 00:53:43,889 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-07 00:53:44,173 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-07 00:53:44,173 INFO L299 CfgBuilder]: Removed 5 assume(true) statements. [2021-11-07 00:53:44,175 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 12:53:44 BoogieIcfgContainer [2021-11-07 00:53:44,176 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-07 00:53:44,178 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-07 00:53:44,178 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-07 00:53:44,182 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-07 00:53:44,182 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 12:53:43" (1/3) ... [2021-11-07 00:53:44,183 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@166a933c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 12:53:44, skipping insertion in model container [2021-11-07 00:53:44,183 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:53:43" (2/3) ... [2021-11-07 00:53:44,184 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@166a933c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 12:53:44, skipping insertion in model container [2021-11-07 00:53:44,184 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 12:53:44" (3/3) ... [2021-11-07 00:53:44,185 INFO L111 eAbstractionObserver]: Analyzing ICFG aaron3-2.c [2021-11-07 00:53:44,190 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-07 00:53:44,191 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2021-11-07 00:53:44,243 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-07 00:53:44,250 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 [2021-11-07 00:53:44,265 INFO L340 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2021-11-07 00:53:44,294 INFO L276 IsEmpty]: Start isEmpty. Operand has 19 states, 12 states have (on average 1.8333333333333333) internal successors, (22), 18 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 00:53:44,299 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-11-07 00:53:44,299 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 00:53:44,300 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2021-11-07 00:53:44,300 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-11-07 00:53:44,306 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 00:53:44,321 INFO L85 PathProgramCache]: Analyzing trace with hash 959367, now seen corresponding path program 1 times [2021-11-07 00:53:44,330 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-07 00:53:44,330 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [22430319] [2021-11-07 00:53:44,331 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 00:53:44,332 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 00:53:44,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-07 00:53:44,502 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-07 00:53:44,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-07 00:53:44,549 INFO L133 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2021-11-07 00:53:44,554 INFO L627 BasicCegarLoop]: Counterexample is feasible [2021-11-07 00:53:44,556 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-11-07 00:53:44,568 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-11-07 00:53:44,572 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-11-07 00:53:44,573 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-11-07 00:53:44,574 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-11-07 00:53:44,576 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-11-07 00:53:44,577 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-07 00:53:44,582 INFO L731 BasicCegarLoop]: Path program histogram: [1] [2021-11-07 00:53:44,587 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-07 00:53:44,608 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.11 12:53:44 BoogieIcfgContainer [2021-11-07 00:53:44,609 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-07 00:53:44,614 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-07 00:53:44,614 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-07 00:53:44,614 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-07 00:53:44,615 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 12:53:44" (3/4) ... [2021-11-07 00:53:44,618 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-11-07 00:53:44,674 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66cd51c2-869f-4eff-bac4-551013267883/bin/utaipan-UUZaoUuFF8/witness.graphml [2021-11-07 00:53:44,674 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-07 00:53:44,677 INFO L168 Benchmark]: Toolchain (without parser) took 1200.45 ms. Allocated memory is still 100.7 MB. Free memory was 66.8 MB in the beginning and 51.5 MB in the end (delta: 15.3 MB). Peak memory consumption was 13.8 MB. Max. memory is 16.1 GB. [2021-11-07 00:53:44,678 INFO L168 Benchmark]: CDTParser took 0.36 ms. Allocated memory is still 100.7 MB. Free memory is still 56.4 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-11-07 00:53:44,679 INFO L168 Benchmark]: CACSL2BoogieTranslator took 261.42 ms. Allocated memory is still 100.7 MB. Free memory was 66.6 MB in the beginning and 77.0 MB in the end (delta: -10.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-11-07 00:53:44,681 INFO L168 Benchmark]: Boogie Procedure Inliner took 31.63 ms. Allocated memory is still 100.7 MB. Free memory was 77.0 MB in the beginning and 75.6 MB in the end (delta: 1.5 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-11-07 00:53:44,684 INFO L168 Benchmark]: Boogie Preprocessor took 18.10 ms. Allocated memory is still 100.7 MB. Free memory was 75.6 MB in the beginning and 74.9 MB in the end (delta: 657.3 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-11-07 00:53:44,685 INFO L168 Benchmark]: RCFGBuilder took 384.06 ms. Allocated memory is still 100.7 MB. Free memory was 74.6 MB in the beginning and 65.8 MB in the end (delta: 8.7 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-11-07 00:53:44,689 INFO L168 Benchmark]: TraceAbstraction took 431.23 ms. Allocated memory is still 100.7 MB. Free memory was 65.2 MB in the beginning and 53.3 MB in the end (delta: 11.9 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-11-07 00:53:44,689 INFO L168 Benchmark]: Witness Printer took 61.68 ms. Allocated memory is still 100.7 MB. Free memory was 53.0 MB in the beginning and 51.5 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-11-07 00:53:44,693 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.36 ms. Allocated memory is still 100.7 MB. Free memory is still 56.4 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 261.42 ms. Allocated memory is still 100.7 MB. Free memory was 66.6 MB in the beginning and 77.0 MB in the end (delta: -10.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 31.63 ms. Allocated memory is still 100.7 MB. Free memory was 77.0 MB in the beginning and 75.6 MB in the end (delta: 1.5 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 18.10 ms. Allocated memory is still 100.7 MB. Free memory was 75.6 MB in the beginning and 74.9 MB in the end (delta: 657.3 kB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 384.06 ms. Allocated memory is still 100.7 MB. Free memory was 74.6 MB in the beginning and 65.8 MB in the end (delta: 8.7 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * TraceAbstraction took 431.23 ms. Allocated memory is still 100.7 MB. Free memory was 65.2 MB in the beginning and 53.3 MB in the end (delta: 11.9 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Witness Printer took 61.68 ms. Allocated memory is still 100.7 MB. Free memory was 53.0 MB in the beginning and 51.5 MB in the end (delta: 1.5 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, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 21]: integer overflow possible integer overflow possible We found a FailurePath: [L16] int x, y, z, tx; [L17] x = __VERIFIER_nondet_int() [L18] y = __VERIFIER_nondet_int() [L19] z = __VERIFIER_nondet_int() [L20] tx = __VERIFIER_nondet_int() [L21] x >= y && x <= tx + z [L21] tx + z - UnprovableResult [Line: 21]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 23]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 23]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 27]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 27]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 19 locations, 6 error locations. Started 1 CEGAR loops. OverallTime: 0.3s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=19occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 4 NumberOfCodeBlocks, 4 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 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 RESULT: Ultimate proved your program to be incorrect! [2021-11-07 00:53:44,749 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66cd51c2-869f-4eff-bac4-551013267883/bin/utaipan-UUZaoUuFF8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(OVERFLOW)