./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_min_sub_34_bad.i --full-output --architecture 64bit
--------------------------------------------------------------------------------
Checking for overflows
Using default analysis
Version 4e7fbc69
Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2d21f1b-ac10-494b-b36c-f5fafe423ccd/bin/utaipan-Q6hlc19bkW/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2d21f1b-ac10-494b-b36c-f5fafe423ccd/bin/utaipan-Q6hlc19bkW/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2d21f1b-ac10-494b-b36c-f5fafe423ccd/bin/utaipan-Q6hlc19bkW/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2d21f1b-ac10-494b-b36c-f5fafe423ccd/bin/utaipan-Q6hlc19bkW/config/TaipanReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_min_sub_34_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2d21f1b-ac10-494b-b36c-f5fafe423ccd/bin/utaipan-Q6hlc19bkW/config/svcomp-Overflow-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2d21f1b-ac10-494b-b36c-f5fafe423ccd/bin/utaipan-Q6hlc19bkW --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 5e839831d55327c38efdd801ad6a8c9b08a127f0162e34068e5cb25205b4118e
--- Real Ultimate output ---
[0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset.
This is Ultimate 0.2.2-dev-4e7fbc6
[2022-11-23 15:23:23,040 INFO L177 SettingsManager]: Resetting all preferences to default values...
[2022-11-23 15:23:23,043 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values
[2022-11-23 15:23:23,065 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2022-11-23 15:23:23,065 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2022-11-23 15:23:23,066 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2022-11-23 15:23:23,068 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2022-11-23 15:23:23,069 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values
[2022-11-23 15:23:23,071 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values
[2022-11-23 15:23:23,072 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values
[2022-11-23 15:23:23,072 INFO L181 SettingsManager]: Resetting Sifa preferences to default values
[2022-11-23 15:23:23,074 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2022-11-23 15:23:23,074 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values
[2022-11-23 15:23:23,075 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values
[2022-11-23 15:23:23,076 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2022-11-23 15:23:23,077 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values
[2022-11-23 15:23:23,083 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2022-11-23 15:23:23,084 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2022-11-23 15:23:23,086 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2022-11-23 15:23:23,087 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values
[2022-11-23 15:23:23,093 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2022-11-23 15:23:23,096 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values
[2022-11-23 15:23:23,097 INFO L181 SettingsManager]: Resetting Referee preferences to default values
[2022-11-23 15:23:23,098 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values
[2022-11-23 15:23:23,101 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2022-11-23 15:23:23,112 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2022-11-23 15:23:23,112 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values
[2022-11-23 15:23:23,113 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values
[2022-11-23 15:23:23,114 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values
[2022-11-23 15:23:23,115 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring...
[2022-11-23 15:23:23,115 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values
[2022-11-23 15:23:23,116 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2022-11-23 15:23:23,116 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values
[2022-11-23 15:23:23,117 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values
[2022-11-23 15:23:23,118 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2022-11-23 15:23:23,118 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values
[2022-11-23 15:23:23,119 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2022-11-23 15:23:23,122 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring...
[2022-11-23 15:23:23,122 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values
[2022-11-23 15:23:23,123 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values
[2022-11-23 15:23:23,124 INFO L188 SettingsManager]: Finished resetting all preferences to default values...
[2022-11-23 15:23:23,125 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2d21f1b-ac10-494b-b36c-f5fafe423ccd/bin/utaipan-Q6hlc19bkW/config/svcomp-Overflow-64bit-Taipan_Default.epf
[2022-11-23 15:23:23,161 INFO L113 SettingsManager]: Loading preferences was successful
[2022-11-23 15:23:23,166 INFO L115 SettingsManager]: Preferences different from defaults after loading the file:
[2022-11-23 15:23:23,167 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2022-11-23 15:23:23,167 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2022-11-23 15:23:23,168 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2022-11-23 15:23:23,168 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2022-11-23 15:23:23,168 INFO L138 SettingsManager]: * User list type=DISABLED
[2022-11-23 15:23:23,169 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults:
[2022-11-23 15:23:23,169 INFO L138 SettingsManager]: * Explicit value domain=true
[2022-11-23 15:23:23,169 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain
[2022-11-23 15:23:23,170 INFO L138 SettingsManager]: * Octagon Domain=false
[2022-11-23 15:23:23,170 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain
[2022-11-23 15:23:23,171 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true
[2022-11-23 15:23:23,171 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true
[2022-11-23 15:23:23,171 INFO L138 SettingsManager]: * Interval Domain=false
[2022-11-23 15:23:23,171 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults:
[2022-11-23 15:23:23,172 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer
[2022-11-23 15:23:23,172 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC
[2022-11-23 15:23:23,173 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2022-11-23 15:23:23,173 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false
[2022-11-23 15:23:23,174 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true
[2022-11-23 15:23:23,174 INFO L138 SettingsManager]: * Check division by zero=IGNORE
[2022-11-23 15:23:23,174 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2022-11-23 15:23:23,174 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2022-11-23 15:23:23,175 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2022-11-23 15:23:23,175 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true
[2022-11-23 15:23:23,175 INFO L138 SettingsManager]: * Check if freed pointer was valid=false
[2022-11-23 15:23:23,176 INFO L138 SettingsManager]: * Use constant arrays=true
[2022-11-23 15:23:23,176 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2022-11-23 15:23:23,176 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2022-11-23 15:23:23,177 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode
[2022-11-23 15:23:23,177 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2022-11-23 15:23:23,177 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2022-11-23 15:23:23,177 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES
[2022-11-23 15:23:23,178 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2022-11-23 15:23:23,178 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2022-11-23 15:23:23,178 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN
[2022-11-23 15:23:23,178 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2022-11-23 15:23:23,179 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2022-11-23 15:23:23,179 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE
[2022-11-23 15:23:23,180 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode
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_d2d21f1b-ac10-494b-b36c-f5fafe423ccd/bin/utaipan-Q6hlc19bkW/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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2d21f1b-ac10-494b-b36c-f5fafe423ccd/bin/utaipan-Q6hlc19bkW
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) )
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5e839831d55327c38efdd801ad6a8c9b08a127f0162e34068e5cb25205b4118e
[2022-11-23 15:23:23,422 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2022-11-23 15:23:23,448 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2022-11-23 15:23:23,451 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2022-11-23 15:23:23,452 INFO L271 PluginConnector]: Initializing CDTParser...
[2022-11-23 15:23:23,453 INFO L275 PluginConnector]: CDTParser initialized
[2022-11-23 15:23:23,454 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2d21f1b-ac10-494b-b36c-f5fafe423ccd/bin/utaipan-Q6hlc19bkW/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_min_sub_34_bad.i
[2022-11-23 15:23:26,561 INFO L500 CDTParser]: Created temporary CDT project at NULL
[2022-11-23 15:23:26,972 INFO L351 CDTParser]: Found 1 translation units.
[2022-11-23 15:23:26,972 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2d21f1b-ac10-494b-b36c-f5fafe423ccd/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_min_sub_34_bad.i
[2022-11-23 15:23:26,999 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2d21f1b-ac10-494b-b36c-f5fafe423ccd/bin/utaipan-Q6hlc19bkW/data/f4f2aaa61/37ab959b9f1944e595617c98c796bd58/FLAGc09e8567d
[2022-11-23 15:23:27,018 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2d21f1b-ac10-494b-b36c-f5fafe423ccd/bin/utaipan-Q6hlc19bkW/data/f4f2aaa61/37ab959b9f1944e595617c98c796bd58
[2022-11-23 15:23:27,023 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2022-11-23 15:23:27,026 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements.
[2022-11-23 15:23:27,027 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2022-11-23 15:23:27,028 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2022-11-23 15:23:27,033 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized
[2022-11-23 15:23:27,034 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:23:27" (1/1) ...
[2022-11-23 15:23:27,037 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@594c864b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:23:27, skipping insertion in model container
[2022-11-23 15:23:27,038 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:23:27" (1/1) ...
[2022-11-23 15:23:27,046 INFO L145 MainTranslator]: Starting translation in SV-COMP mode
[2022-11-23 15:23:27,100 INFO L178 MainTranslator]: Built tables and reachable declarations
[2022-11-23 15:23:27,450 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16
[2022-11-23 15:23:27,897 INFO L210 PostProcessor]: Analyzing one entry point: main
[2022-11-23 15:23:27,906 INFO L203 MainTranslator]: Completed pre-run
[2022-11-23 15:23:27,927 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16
[2022-11-23 15:23:27,983 INFO L210 PostProcessor]: Analyzing one entry point: main
[2022-11-23 15:23:28,131 INFO L208 MainTranslator]: Completed translation
[2022-11-23 15:23:28,132 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:23:28 WrapperNode
[2022-11-23 15:23:28,132 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2022-11-23 15:23:28,133 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2022-11-23 15:23:28,133 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner...
[2022-11-23 15:23:28,134 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized
[2022-11-23 15:23:28,141 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:23:28" (1/1) ...
[2022-11-23 15:23:28,170 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:23:28" (1/1) ...
[2022-11-23 15:23:28,194 INFO L138 Inliner]: procedures = 499, calls = 58, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 43
[2022-11-23 15:23:28,194 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2022-11-23 15:23:28,195 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2022-11-23 15:23:28,196 INFO L271 PluginConnector]: Initializing Boogie Preprocessor...
[2022-11-23 15:23:28,196 INFO L275 PluginConnector]: Boogie Preprocessor initialized
[2022-11-23 15:23:28,206 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:23:28" (1/1) ...
[2022-11-23 15:23:28,206 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:23:28" (1/1) ...
[2022-11-23 15:23:28,208 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:23:28" (1/1) ...
[2022-11-23 15:23:28,208 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:23:28" (1/1) ...
[2022-11-23 15:23:28,215 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:23:28" (1/1) ...
[2022-11-23 15:23:28,216 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:23:28" (1/1) ...
[2022-11-23 15:23:28,227 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:23:28" (1/1) ...
[2022-11-23 15:23:28,228 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:23:28" (1/1) ...
[2022-11-23 15:23:28,230 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2022-11-23 15:23:28,231 INFO L113 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2022-11-23 15:23:28,231 INFO L271 PluginConnector]: Initializing RCFGBuilder...
[2022-11-23 15:23:28,232 INFO L275 PluginConnector]: RCFGBuilder initialized
[2022-11-23 15:23:28,232 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:23:28" (1/1) ...
[2022-11-23 15:23:28,248 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2022-11-23 15:23:28,258 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2d21f1b-ac10-494b-b36c-f5fafe423ccd/bin/utaipan-Q6hlc19bkW/z3
[2022-11-23 15:23:28,271 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2d21f1b-ac10-494b-b36c-f5fafe423ccd/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null)
[2022-11-23 15:23:28,294 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2d21f1b-ac10-494b-b36c-f5fafe423ccd/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process
[2022-11-23 15:23:28,319 INFO L130 BoogieDeclarations]: Found specification of procedure printLine
[2022-11-23 15:23:28,320 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine
[2022-11-23 15:23:28,320 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2022-11-23 15:23:28,320 INFO L130 BoogieDeclarations]: Found specification of procedure read~int
[2022-11-23 15:23:28,320 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2022-11-23 15:23:28,320 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2022-11-23 15:23:28,320 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2022-11-23 15:23:28,320 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2022-11-23 15:23:28,321 INFO L130 BoogieDeclarations]: Found specification of procedure time
[2022-11-23 15:23:28,321 INFO L130 BoogieDeclarations]: Found specification of procedure write~int
[2022-11-23 15:23:28,321 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int
[2022-11-23 15:23:28,491 INFO L235 CfgBuilder]: Building ICFG
[2022-11-23 15:23:28,493 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation
[2022-11-23 15:23:28,631 INFO L276 CfgBuilder]: Performing block encoding
[2022-11-23 15:23:28,661 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2022-11-23 15:23:28,661 INFO L300 CfgBuilder]: Removed 0 assume(true) statements.
[2022-11-23 15:23:28,664 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:23:28 BoogieIcfgContainer
[2022-11-23 15:23:28,664 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2022-11-23 15:23:28,667 INFO L113 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2022-11-23 15:23:28,667 INFO L271 PluginConnector]: Initializing TraceAbstraction...
[2022-11-23 15:23:28,671 INFO L275 PluginConnector]: TraceAbstraction initialized
[2022-11-23 15:23:28,671 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 03:23:27" (1/3) ...
[2022-11-23 15:23:28,672 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@79944cdb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 03:23:28, skipping insertion in model container
[2022-11-23 15:23:28,672 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:23:28" (2/3) ...
[2022-11-23 15:23:28,672 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@79944cdb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 03:23:28, skipping insertion in model container
[2022-11-23 15:23:28,672 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:23:28" (3/3) ...
[2022-11-23 15:23:28,674 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE191_Integer_Underflow__int_min_sub_34_bad.i
[2022-11-23 15:23:28,726 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2022-11-23 15:23:28,726 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations.
[2022-11-23 15:23:28,796 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2022-11-23 15:23:28,801 INFO L357 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, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@6cf5d465, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2022-11-23 15:23:28,801 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations.
[2022-11-23 15:23:28,806 INFO L276 IsEmpty]: Start isEmpty. Operand has 12 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 8 states have internal predecessors, (8), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2)
[2022-11-23 15:23:28,819 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7
[2022-11-23 15:23:28,820 INFO L187 NwaCegarLoop]: Found error trace
[2022-11-23 15:23:28,820 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1]
[2022-11-23 15:23:28,821 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] ===
[2022-11-23 15:23:28,830 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-11-23 15:23:28,830 INFO L85 PathProgramCache]: Analyzing trace with hash 1857405809, now seen corresponding path program 1 times
[2022-11-23 15:23:28,843 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN
[2022-11-23 15:23:28,843 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [844545936]
[2022-11-23 15:23:28,844 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-11-23 15:23:28,844 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-11-23 15:23:28,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2022-11-23 15:23:28,965 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2022-11-23 15:23:28,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2022-11-23 15:23:29,010 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace
[2022-11-23 15:23:29,012 INFO L359 BasicCegarLoop]: Counterexample is feasible
[2022-11-23 15:23:29,013 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining)
[2022-11-23 15:23:29,015 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining)
[2022-11-23 15:23:29,016 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2022-11-23 15:23:29,020 INFO L444 BasicCegarLoop]: Path program histogram: [1]
[2022-11-23 15:23:29,026 INFO L178 ceAbstractionStarter]: Computing trace abstraction results
[2022-11-23 15:23:29,055 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 03:23:29 BoogieIcfgContainer
[2022-11-23 15:23:29,055 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2022-11-23 15:23:29,056 INFO L113 PluginConnector]: ------------------------Witness Printer----------------------------
[2022-11-23 15:23:29,056 INFO L271 PluginConnector]: Initializing Witness Printer...
[2022-11-23 15:23:29,056 INFO L275 PluginConnector]: Witness Printer initialized
[2022-11-23 15:23:29,057 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:23:28" (3/4) ...
[2022-11-23 15:23:29,059 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample
[2022-11-23 15:23:29,099 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2d21f1b-ac10-494b-b36c-f5fafe423ccd/bin/utaipan-Q6hlc19bkW/witness.graphml
[2022-11-23 15:23:29,099 INFO L132 PluginConnector]: ------------------------ END Witness Printer----------------------------
[2022-11-23 15:23:29,100 INFO L158 Benchmark]: Toolchain (without parser) took 2074.57ms. Allocated memory is still 184.5MB. Free memory was 137.3MB in the beginning and 137.2MB in the end (delta: 19.6kB). Peak memory consumption was 3.2MB. Max. memory is 16.1GB.
[2022-11-23 15:23:29,101 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 115.3MB. Free memory was 63.6MB in the beginning and 63.5MB in the end (delta: 117.7kB). There was no memory consumed. Max. memory is 16.1GB.
[2022-11-23 15:23:29,102 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1105.01ms. Allocated memory is still 184.5MB. Free memory was 137.3MB in the beginning and 74.7MB in the end (delta: 62.5MB). Peak memory consumption was 62.9MB. Max. memory is 16.1GB.
[2022-11-23 15:23:29,102 INFO L158 Benchmark]: Boogie Procedure Inliner took 61.50ms. Allocated memory is still 184.5MB. Free memory was 74.7MB in the beginning and 72.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
[2022-11-23 15:23:29,103 INFO L158 Benchmark]: Boogie Preprocessor took 35.38ms. Allocated memory is still 184.5MB. Free memory was 72.2MB in the beginning and 70.5MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
[2022-11-23 15:23:29,104 INFO L158 Benchmark]: RCFGBuilder took 432.65ms. Allocated memory is still 184.5MB. Free memory was 70.5MB in the beginning and 56.7MB in the end (delta: 13.8MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB.
[2022-11-23 15:23:29,104 INFO L158 Benchmark]: TraceAbstraction took 387.91ms. Allocated memory is still 184.5MB. Free memory was 55.8MB in the beginning and 139.3MB in the end (delta: -83.5MB). There was no memory consumed. Max. memory is 16.1GB.
[2022-11-23 15:23:29,105 INFO L158 Benchmark]: Witness Printer took 43.66ms. Allocated memory is still 184.5MB. Free memory was 139.3MB in the beginning and 137.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
[2022-11-23 15:23:29,107 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] #######################
--- Results ---
* Results from de.uni_freiburg.informatik.ultimate.core:
- StatisticsResult: Toolchain Benchmarks
Benchmark results are:
* CDTParser took 0.19ms. Allocated memory is still 115.3MB. Free memory was 63.6MB in the beginning and 63.5MB in the end (delta: 117.7kB). There was no memory consumed. Max. memory is 16.1GB.
* CACSL2BoogieTranslator took 1105.01ms. Allocated memory is still 184.5MB. Free memory was 137.3MB in the beginning and 74.7MB in the end (delta: 62.5MB). Peak memory consumption was 62.9MB. Max. memory is 16.1GB.
* Boogie Procedure Inliner took 61.50ms. Allocated memory is still 184.5MB. Free memory was 74.7MB in the beginning and 72.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
* Boogie Preprocessor took 35.38ms. Allocated memory is still 184.5MB. Free memory was 72.2MB in the beginning and 70.5MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
* RCFGBuilder took 432.65ms. Allocated memory is still 184.5MB. Free memory was 70.5MB in the beginning and 56.7MB in the end (delta: 13.8MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB.
* TraceAbstraction took 387.91ms. Allocated memory is still 184.5MB. Free memory was 55.8MB in the beginning and 139.3MB in the end (delta: -83.5MB). There was no memory consumed. Max. memory is 16.1GB.
* Witness Printer took 43.66ms. Allocated memory is still 184.5MB. Free memory was 139.3MB in the beginning and 137.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
* Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator:
- GenericResult: Unfinished Backtranslation
The program execution was not completely translated back.
- GenericResult: Unfinished Backtranslation
The program execution was not completely translated back.
* 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: 1563]: integer overflow possible
integer overflow possible
We found a FailurePath:
[L1522] const int GLOBAL_CONST_TRUE = 1;
[L1523] const int GLOBAL_CONST_FALSE = 0;
[L1524] const int GLOBAL_CONST_FIVE = 5;
[L1525] int globalTrue = 1;
[L1526] int globalFalse = 0;
[L1527] int globalFive = 5;
[L1546] int globalArgc = 0;
[L1547] char** globalArgv = ((void *)0);
[L1571] CALL printLine("Calling bad()...")
VAL [#in~line={2:0}, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1]
[L1414] COND TRUE line != ((void *)0)
[L1571] RET printLine("Calling bad()...")
VAL [#in~argv={1073741828:1073741827}, argc=1073741826, argv={1073741828:1073741827}, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, unknown-#in~argc-unknown=1073741826]
[L1572] CALL CWE191_Integer_Underflow__int_min_sub_34_bad()
[L1555] int data;
[L1556] CWE191_Integer_Underflow__int_min_sub_34_unionType myUnion;
[L1557] data = 0
[L1558] data = (-0x7fffffff - 1)
[L1559] myUnion.unionFirst = data
[L1561] EXPR myUnion.unionSecond
[L1561] int data = myUnion.unionSecond;
[L1563] data - 1
VAL [data=-2147483648, data=-2147483648, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, myUnion={5:0}]
- UnprovableResult [Line: 1563]: 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 2 procedures, 12 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.2s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=12occurred 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, 6 NumberOfCodeBlocks, 6 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!
[2022-11-23 15:23:29,136 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2d21f1b-ac10-494b-b36c-f5fafe423ccd/bin/utaipan-Q6hlc19bkW/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)