./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/signedintegeroverflow-regression/PrefixDecrement.i --full-output --architecture 64bit
--------------------------------------------------------------------------------
Checking for overflows
Using default analysis
Version 5e519f3a
Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04ea6eb6-76ef-4b50-b29b-4dccef32cadf/bin/uautomizer-Dbtcem3rbc/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04ea6eb6-76ef-4b50-b29b-4dccef32cadf/bin/uautomizer-Dbtcem3rbc/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04ea6eb6-76ef-4b50-b29b-4dccef32cadf/bin/uautomizer-Dbtcem3rbc/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04ea6eb6-76ef-4b50-b29b-4dccef32cadf/bin/uautomizer-Dbtcem3rbc/config/AutomizerReach.xml -i ../../sv-benchmarks/c/signedintegeroverflow-regression/PrefixDecrement.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04ea6eb6-76ef-4b50-b29b-4dccef32cadf/bin/uautomizer-Dbtcem3rbc/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04ea6eb6-76ef-4b50-b29b-4dccef32cadf/bin/uautomizer-Dbtcem3rbc --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 Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 8bdb977ff214625ad8e508f43c66811f5e3cd7c697d49c33523a8c57afa53f24
--- 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-5e519f3
[2022-11-02 20:14:10,286 INFO L177 SettingsManager]: Resetting all preferences to default values...
[2022-11-02 20:14:10,288 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values
[2022-11-02 20:14:10,315 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2022-11-02 20:14:10,316 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2022-11-02 20:14:10,317 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2022-11-02 20:14:10,319 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2022-11-02 20:14:10,321 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values
[2022-11-02 20:14:10,323 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values
[2022-11-02 20:14:10,324 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values
[2022-11-02 20:14:10,325 INFO L181 SettingsManager]: Resetting Sifa preferences to default values
[2022-11-02 20:14:10,326 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2022-11-02 20:14:10,327 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values
[2022-11-02 20:14:10,328 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values
[2022-11-02 20:14:10,330 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2022-11-02 20:14:10,331 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values
[2022-11-02 20:14:10,332 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2022-11-02 20:14:10,333 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2022-11-02 20:14:10,335 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2022-11-02 20:14:10,337 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values
[2022-11-02 20:14:10,339 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2022-11-02 20:14:10,341 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values
[2022-11-02 20:14:10,342 INFO L181 SettingsManager]: Resetting Referee preferences to default values
[2022-11-02 20:14:10,343 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values
[2022-11-02 20:14:10,347 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2022-11-02 20:14:10,348 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2022-11-02 20:14:10,348 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values
[2022-11-02 20:14:10,349 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values
[2022-11-02 20:14:10,350 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values
[2022-11-02 20:14:10,351 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring...
[2022-11-02 20:14:10,352 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values
[2022-11-02 20:14:10,353 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2022-11-02 20:14:10,354 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values
[2022-11-02 20:14:10,355 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values
[2022-11-02 20:14:10,356 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2022-11-02 20:14:10,357 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values
[2022-11-02 20:14:10,358 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2022-11-02 20:14:10,358 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring...
[2022-11-02 20:14:10,359 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values
[2022-11-02 20:14:10,360 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values
[2022-11-02 20:14:10,361 INFO L188 SettingsManager]: Finished resetting all preferences to default values...
[2022-11-02 20:14:10,362 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04ea6eb6-76ef-4b50-b29b-4dccef32cadf/bin/uautomizer-Dbtcem3rbc/config/svcomp-Overflow-64bit-Automizer_Default.epf
[2022-11-02 20:14:10,400 INFO L113 SettingsManager]: Loading preferences was successful
[2022-11-02 20:14:10,404 INFO L115 SettingsManager]: Preferences different from defaults after loading the file:
[2022-11-02 20:14:10,404 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2022-11-02 20:14:10,405 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2022-11-02 20:14:10,405 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2022-11-02 20:14:10,406 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2022-11-02 20:14:10,407 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2022-11-02 20:14:10,407 INFO L138 SettingsManager]: * Create parallel compositions if possible=false
[2022-11-02 20:14:10,407 INFO L138 SettingsManager]: * Use SBE=true
[2022-11-02 20:14:10,407 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2022-11-02 20:14:10,409 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false
[2022-11-02 20:14:10,409 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true
[2022-11-02 20:14:10,409 INFO L138 SettingsManager]: * Check division by zero=IGNORE
[2022-11-02 20:14:10,409 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2022-11-02 20:14:10,409 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2022-11-02 20:14:10,410 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2022-11-02 20:14:10,410 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true
[2022-11-02 20:14:10,410 INFO L138 SettingsManager]: * Check if freed pointer was valid=false
[2022-11-02 20:14:10,410 INFO L138 SettingsManager]: * Use constant arrays=true
[2022-11-02 20:14:10,411 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2022-11-02 20:14:10,411 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2022-11-02 20:14:10,411 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements
[2022-11-02 20:14:10,411 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode
[2022-11-02 20:14:10,411 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2022-11-02 20:14:10,412 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2022-11-02 20:14:10,412 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2022-11-02 20:14:10,412 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2022-11-02 20:14:10,412 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL
[2022-11-02 20:14:10,413 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2022-11-02 20:14:10,413 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2022-11-02 20:14:10,414 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_04ea6eb6-76ef-4b50-b29b-4dccef32cadf/bin/uautomizer-Dbtcem3rbc/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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04ea6eb6-76ef-4b50-b29b-4dccef32cadf/bin/uautomizer-Dbtcem3rbc
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) )
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8bdb977ff214625ad8e508f43c66811f5e3cd7c697d49c33523a8c57afa53f24
[2022-11-02 20:14:10,700 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2022-11-02 20:14:10,721 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2022-11-02 20:14:10,723 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2022-11-02 20:14:10,725 INFO L271 PluginConnector]: Initializing CDTParser...
[2022-11-02 20:14:10,725 INFO L275 PluginConnector]: CDTParser initialized
[2022-11-02 20:14:10,727 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04ea6eb6-76ef-4b50-b29b-4dccef32cadf/bin/uautomizer-Dbtcem3rbc/../../sv-benchmarks/c/signedintegeroverflow-regression/PrefixDecrement.i
[2022-11-02 20:14:10,825 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04ea6eb6-76ef-4b50-b29b-4dccef32cadf/bin/uautomizer-Dbtcem3rbc/data/4d7330230/c36eeea0069b4d18b28b74f9638a0877/FLAG6ec888722
[2022-11-02 20:14:11,314 INFO L306 CDTParser]: Found 1 translation units.
[2022-11-02 20:14:11,315 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04ea6eb6-76ef-4b50-b29b-4dccef32cadf/sv-benchmarks/c/signedintegeroverflow-regression/PrefixDecrement.i
[2022-11-02 20:14:11,326 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04ea6eb6-76ef-4b50-b29b-4dccef32cadf/bin/uautomizer-Dbtcem3rbc/data/4d7330230/c36eeea0069b4d18b28b74f9638a0877/FLAG6ec888722
[2022-11-02 20:14:11,664 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04ea6eb6-76ef-4b50-b29b-4dccef32cadf/bin/uautomizer-Dbtcem3rbc/data/4d7330230/c36eeea0069b4d18b28b74f9638a0877
[2022-11-02 20:14:11,667 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2022-11-02 20:14:11,671 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements.
[2022-11-02 20:14:11,674 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2022-11-02 20:14:11,675 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2022-11-02 20:14:11,678 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized
[2022-11-02 20:14:11,679 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 08:14:11" (1/1) ...
[2022-11-02 20:14:11,683 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6778262 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:14:11, skipping insertion in model container
[2022-11-02 20:14:11,684 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 08:14:11" (1/1) ...
[2022-11-02 20:14:11,691 INFO L145 MainTranslator]: Starting translation in SV-COMP mode
[2022-11-02 20:14:11,716 INFO L178 MainTranslator]: Built tables and reachable declarations
[2022-11-02 20:14:11,991 INFO L210 PostProcessor]: Analyzing one entry point: main
[2022-11-02 20:14:12,001 INFO L203 MainTranslator]: Completed pre-run
[2022-11-02 20:14:12,040 INFO L210 PostProcessor]: Analyzing one entry point: main
[2022-11-02 20:14:12,074 INFO L208 MainTranslator]: Completed translation
[2022-11-02 20:14:12,075 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:14:12 WrapperNode
[2022-11-02 20:14:12,075 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2022-11-02 20:14:12,076 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2022-11-02 20:14:12,076 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner...
[2022-11-02 20:14:12,077 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized
[2022-11-02 20:14:12,092 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:14:12" (1/1) ...
[2022-11-02 20:14:12,119 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:14:12" (1/1) ...
[2022-11-02 20:14:12,143 INFO L138 Inliner]: procedures = 109, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 19
[2022-11-02 20:14:12,144 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2022-11-02 20:14:12,145 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2022-11-02 20:14:12,145 INFO L271 PluginConnector]: Initializing Boogie Preprocessor...
[2022-11-02 20:14:12,145 INFO L275 PluginConnector]: Boogie Preprocessor initialized
[2022-11-02 20:14:12,155 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:14:12" (1/1) ...
[2022-11-02 20:14:12,155 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:14:12" (1/1) ...
[2022-11-02 20:14:12,166 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:14:12" (1/1) ...
[2022-11-02 20:14:12,166 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:14:12" (1/1) ...
[2022-11-02 20:14:12,171 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:14:12" (1/1) ...
[2022-11-02 20:14:12,173 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:14:12" (1/1) ...
[2022-11-02 20:14:12,174 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:14:12" (1/1) ...
[2022-11-02 20:14:12,175 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:14:12" (1/1) ...
[2022-11-02 20:14:12,176 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2022-11-02 20:14:12,177 INFO L113 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2022-11-02 20:14:12,177 INFO L271 PluginConnector]: Initializing RCFGBuilder...
[2022-11-02 20:14:12,177 INFO L275 PluginConnector]: RCFGBuilder initialized
[2022-11-02 20:14:12,178 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:14:12" (1/1) ...
[2022-11-02 20:14:12,185 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2022-11-02 20:14:12,196 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04ea6eb6-76ef-4b50-b29b-4dccef32cadf/bin/uautomizer-Dbtcem3rbc/z3
[2022-11-02 20:14:12,209 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04ea6eb6-76ef-4b50-b29b-4dccef32cadf/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null)
[2022-11-02 20:14:12,223 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04ea6eb6-76ef-4b50-b29b-4dccef32cadf/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process
[2022-11-02 20:14:12,251 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2022-11-02 20:14:12,251 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int
[2022-11-02 20:14:12,252 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2022-11-02 20:14:12,252 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2022-11-02 20:14:12,408 INFO L235 CfgBuilder]: Building ICFG
[2022-11-02 20:14:12,410 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation
[2022-11-02 20:14:12,555 INFO L276 CfgBuilder]: Performing block encoding
[2022-11-02 20:14:12,561 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2022-11-02 20:14:12,561 INFO L300 CfgBuilder]: Removed 0 assume(true) statements.
[2022-11-02 20:14:12,563 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 08:14:12 BoogieIcfgContainer
[2022-11-02 20:14:12,563 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2022-11-02 20:14:12,565 INFO L113 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2022-11-02 20:14:12,566 INFO L271 PluginConnector]: Initializing TraceAbstraction...
[2022-11-02 20:14:12,569 INFO L275 PluginConnector]: TraceAbstraction initialized
[2022-11-02 20:14:12,570 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.11 08:14:11" (1/3) ...
[2022-11-02 20:14:12,571 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@69d1ebee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 08:14:12, skipping insertion in model container
[2022-11-02 20:14:12,571 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:14:12" (2/3) ...
[2022-11-02 20:14:12,571 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@69d1ebee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 08:14:12, skipping insertion in model container
[2022-11-02 20:14:12,572 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 08:14:12" (3/3) ...
[2022-11-02 20:14:12,573 INFO L112 eAbstractionObserver]: Analyzing ICFG PrefixDecrement.i
[2022-11-02 20:14:12,594 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2022-11-02 20:14:12,594 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations.
[2022-11-02 20:14:12,676 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2022-11-02 20:14:12,683 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;@2401de8f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2022-11-02 20:14:12,684 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations.
[2022-11-02 20:14:12,689 INFO L276 IsEmpty]: Start isEmpty. Operand has 9 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 8 states have internal predecessors, (8), 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)
[2022-11-02 20:14:12,696 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4
[2022-11-02 20:14:12,696 INFO L187 NwaCegarLoop]: Found error trace
[2022-11-02 20:14:12,697 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1]
[2022-11-02 20:14:12,698 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] ===
[2022-11-02 20:14:12,703 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-11-02 20:14:12,704 INFO L85 PathProgramCache]: Analyzing trace with hash 29856, now seen corresponding path program 1 times
[2022-11-02 20:14:12,714 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-11-02 20:14:12,714 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [528822124]
[2022-11-02 20:14:12,715 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-11-02 20:14:12,715 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-11-02 20:14:12,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-11-02 20:14:12,870 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-11-02 20:14:12,871 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-11-02 20:14:12,871 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [528822124]
[2022-11-02 20:14:12,872 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [528822124] provided 1 perfect and 0 imperfect interpolant sequences
[2022-11-02 20:14:12,872 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-11-02 20:14:12,873 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2022-11-02 20:14:12,874 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1343868242]
[2022-11-02 20:14:12,875 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-11-02 20:14:12,880 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2022-11-02 20:14:12,880 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-11-02 20:14:12,911 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2022-11-02 20:14:12,911 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2022-11-02 20:14:12,913 INFO L87 Difference]: Start difference. First operand has 9 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 8 states have internal predecessors, (8), 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 1.5) internal successors, (3), 3 states have internal predecessors, (3), 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)
[2022-11-02 20:14:12,933 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-11-02 20:14:12,933 INFO L93 Difference]: Finished difference Result 9 states and 8 transitions.
[2022-11-02 20:14:12,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2022-11-02 20:14:12,936 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 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 3
[2022-11-02 20:14:12,937 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-11-02 20:14:12,944 INFO L225 Difference]: With dead ends: 9
[2022-11-02 20:14:12,945 INFO L226 Difference]: Without dead ends: 5
[2022-11-02 20:14:12,948 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2022-11-02 20:14:12,952 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 2 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 3 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2022-11-02 20:14:12,953 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 3 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2022-11-02 20:14:12,970 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5 states.
[2022-11-02 20:14:12,980 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5 to 5.
[2022-11-02 20:14:12,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 4 states have (on average 1.0) internal successors, (4), 4 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)
[2022-11-02 20:14:12,982 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 4 transitions.
[2022-11-02 20:14:12,983 INFO L78 Accepts]: Start accepts. Automaton has 5 states and 4 transitions. Word has length 3
[2022-11-02 20:14:12,984 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-11-02 20:14:12,984 INFO L495 AbstractCegarLoop]: Abstraction has 5 states and 4 transitions.
[2022-11-02 20:14:12,984 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 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)
[2022-11-02 20:14:12,985 INFO L276 IsEmpty]: Start isEmpty. Operand 5 states and 4 transitions.
[2022-11-02 20:14:12,985 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5
[2022-11-02 20:14:12,985 INFO L187 NwaCegarLoop]: Found error trace
[2022-11-02 20:14:12,985 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1]
[2022-11-02 20:14:12,986 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2022-11-02 20:14:12,986 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] ===
[2022-11-02 20:14:12,987 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-11-02 20:14:12,987 INFO L85 PathProgramCache]: Analyzing trace with hash 925572, now seen corresponding path program 1 times
[2022-11-02 20:14:12,988 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-11-02 20:14:12,988 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [277886527]
[2022-11-02 20:14:12,988 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-11-02 20:14:12,989 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-11-02 20:14:13,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2022-11-02 20:14:13,001 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2022-11-02 20:14:13,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2022-11-02 20:14:13,026 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2022-11-02 20:14:13,026 INFO L359 BasicCegarLoop]: Counterexample is feasible
[2022-11-02 20:14:13,028 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining)
[2022-11-02 20:14:13,030 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining)
[2022-11-02 20:14:13,031 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2022-11-02 20:14:13,035 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1]
[2022-11-02 20:14:13,041 INFO L178 ceAbstractionStarter]: Computing trace abstraction results
[2022-11-02 20:14:13,059 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.11 08:14:13 BoogieIcfgContainer
[2022-11-02 20:14:13,061 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2022-11-02 20:14:13,062 INFO L113 PluginConnector]: ------------------------Witness Printer----------------------------
[2022-11-02 20:14:13,063 INFO L271 PluginConnector]: Initializing Witness Printer...
[2022-11-02 20:14:13,063 INFO L275 PluginConnector]: Witness Printer initialized
[2022-11-02 20:14:13,064 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 08:14:12" (3/4) ...
[2022-11-02 20:14:13,066 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample
[2022-11-02 20:14:13,112 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04ea6eb6-76ef-4b50-b29b-4dccef32cadf/bin/uautomizer-Dbtcem3rbc/witness.graphml
[2022-11-02 20:14:13,113 INFO L132 PluginConnector]: ------------------------ END Witness Printer----------------------------
[2022-11-02 20:14:13,114 INFO L158 Benchmark]: Toolchain (without parser) took 1443.01ms. Allocated memory is still 146.8MB. Free memory was 110.2MB in the beginning and 80.2MB in the end (delta: 30.1MB). Peak memory consumption was 26.6MB. Max. memory is 16.1GB.
[2022-11-02 20:14:13,115 INFO L158 Benchmark]: CDTParser took 0.31ms. Allocated memory is still 94.4MB. Free memory was 64.9MB in the beginning and 64.9MB in the end (delta: 28.9kB). There was no memory consumed. Max. memory is 16.1GB.
[2022-11-02 20:14:13,116 INFO L158 Benchmark]: CACSL2BoogieTranslator took 401.29ms. Allocated memory is still 146.8MB. Free memory was 110.2MB in the beginning and 117.6MB in the end (delta: -7.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB.
[2022-11-02 20:14:13,116 INFO L158 Benchmark]: Boogie Procedure Inliner took 67.78ms. Allocated memory is still 146.8MB. Free memory was 117.6MB in the beginning and 115.8MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
[2022-11-02 20:14:13,120 INFO L158 Benchmark]: Boogie Preprocessor took 31.81ms. Allocated memory is still 146.8MB. Free memory was 115.8MB in the beginning and 114.6MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
[2022-11-02 20:14:13,123 INFO L158 Benchmark]: RCFGBuilder took 386.47ms. Allocated memory is still 146.8MB. Free memory was 114.6MB in the beginning and 105.3MB in the end (delta: 9.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB.
[2022-11-02 20:14:13,124 INFO L158 Benchmark]: TraceAbstraction took 496.25ms. Allocated memory is still 146.8MB. Free memory was 104.1MB in the beginning and 81.1MB in the end (delta: 23.1MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB.
[2022-11-02 20:14:13,127 INFO L158 Benchmark]: Witness Printer took 50.73ms. Allocated memory is still 146.8MB. Free memory was 81.1MB in the beginning and 80.2MB in the end (delta: 902.3kB). There was no memory consumed. Max. memory is 16.1GB.
[2022-11-02 20:14:13,131 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] #######################
--- Results ---
* Results from de.uni_freiburg.informatik.ultimate.core:
- StatisticsResult: Toolchain Benchmarks
Benchmark results are:
* CDTParser took 0.31ms. Allocated memory is still 94.4MB. Free memory was 64.9MB in the beginning and 64.9MB in the end (delta: 28.9kB). There was no memory consumed. Max. memory is 16.1GB.
* CACSL2BoogieTranslator took 401.29ms. Allocated memory is still 146.8MB. Free memory was 110.2MB in the beginning and 117.6MB in the end (delta: -7.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB.
* Boogie Procedure Inliner took 67.78ms. Allocated memory is still 146.8MB. Free memory was 117.6MB in the beginning and 115.8MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
* Boogie Preprocessor took 31.81ms. Allocated memory is still 146.8MB. Free memory was 115.8MB in the beginning and 114.6MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
* RCFGBuilder took 386.47ms. Allocated memory is still 146.8MB. Free memory was 114.6MB in the beginning and 105.3MB in the end (delta: 9.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB.
* TraceAbstraction took 496.25ms. Allocated memory is still 146.8MB. Free memory was 104.1MB in the beginning and 81.1MB in the end (delta: 23.1MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB.
* Witness Printer took 50.73ms. Allocated memory is still 146.8MB. Free memory was 81.1MB in the beginning and 80.2MB in the end (delta: 902.3kB). There was no memory consumed. Max. memory is 16.1GB.
* 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: 333]: integer overflow possible
integer overflow possible
We found a FailurePath:
[L332] int x = -2147483647 - 1;
VAL [x=-2147483648]
[L333] --x
VAL [x=-2147483648]
- UnprovableResult [Line: 333]: 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, 9 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.4s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 2 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2 mSDsluCounter, 3 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1 mSDsCounter, 1 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2 IncrementalHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1 mSolverCounterUnsat, 2 mSDtfsCounter, 2 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=9occurred in iteration=0, InterpolantAutomatonStates: 3, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 7 NumberOfCodeBlocks, 7 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 2 ConstructedInterpolants, 0 QuantifiedInterpolants, 6 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 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!
[2022-11-02 20:14:13,170 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04ea6eb6-76ef-4b50-b29b-4dccef32cadf/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with 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)