./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/loop-zilu/benchmark31_disjunctive.i --full-output --architecture 32bit


--------------------------------------------------------------------------------


Checking for overflows
Using default analysis
Version 4e77c044
Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_331dd2e1-7421-4a57-b258-4d2476bc253c/bin/uautomizer-WNIpwEf4Nt/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_331dd2e1-7421-4a57-b258-4d2476bc253c/bin/uautomizer-WNIpwEf4Nt/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_331dd2e1-7421-4a57-b258-4d2476bc253c/bin/uautomizer-WNIpwEf4Nt/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_331dd2e1-7421-4a57-b258-4d2476bc253c/bin/uautomizer-WNIpwEf4Nt/config/AutomizerReach.xml -i ../../sv-benchmarks/c/loop-zilu/benchmark31_disjunctive.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_331dd2e1-7421-4a57-b258-4d2476bc253c/bin/uautomizer-WNIpwEf4Nt/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_331dd2e1-7421-4a57-b258-4d2476bc253c/bin/uautomizer-WNIpwEf4Nt --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 32bit --witnessprinter.graph.data.programhash b5c32c4c87bee5873040844586411da3e695cd61
..............................................................................................................................................................................................................................................................................................
Execution finished normally
Writing output log to file Ultimate.log
Writing human readable error path to file UltimateCounterExample.errorpath
Result:
FALSE(OVERFLOW)
--- Real Ultimate output ---
This is Ultimate 0.2.1-dev-4e77c04
[2021-10-12 23:59:13,035 INFO  L177        SettingsManager]: Resetting all preferences to default values...
[2021-10-12 23:59:13,037 INFO  L181        SettingsManager]: Resetting UltimateCore preferences to default values
[2021-10-12 23:59:13,068 INFO  L184        SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2021-10-12 23:59:13,069 INFO  L181        SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2021-10-12 23:59:13,070 INFO  L181        SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2021-10-12 23:59:13,072 INFO  L181        SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2021-10-12 23:59:13,074 INFO  L181        SettingsManager]: Resetting LassoRanker preferences to default values
[2021-10-12 23:59:13,077 INFO  L181        SettingsManager]: Resetting Reaching Definitions preferences to default values
[2021-10-12 23:59:13,078 INFO  L181        SettingsManager]: Resetting SyntaxChecker preferences to default values
[2021-10-12 23:59:13,079 INFO  L181        SettingsManager]: Resetting Sifa preferences to default values
[2021-10-12 23:59:13,081 INFO  L184        SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2021-10-12 23:59:13,082 INFO  L181        SettingsManager]: Resetting LTL2Aut preferences to default values
[2021-10-12 23:59:13,083 INFO  L181        SettingsManager]: Resetting PEA to Boogie preferences to default values
[2021-10-12 23:59:13,084 INFO  L181        SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2021-10-12 23:59:13,089 INFO  L181        SettingsManager]: Resetting ChcToBoogie preferences to default values
[2021-10-12 23:59:13,092 INFO  L181        SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2021-10-12 23:59:13,098 INFO  L181        SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2021-10-12 23:59:13,100 INFO  L181        SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2021-10-12 23:59:13,105 INFO  L181        SettingsManager]: Resetting CodeCheck preferences to default values
[2021-10-12 23:59:13,109 INFO  L181        SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2021-10-12 23:59:13,113 INFO  L181        SettingsManager]: Resetting RCFGBuilder preferences to default values
[2021-10-12 23:59:13,114 INFO  L181        SettingsManager]: Resetting Referee preferences to default values
[2021-10-12 23:59:13,115 INFO  L181        SettingsManager]: Resetting TraceAbstraction preferences to default values
[2021-10-12 23:59:13,118 INFO  L184        SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2021-10-12 23:59:13,119 INFO  L184        SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2021-10-12 23:59:13,119 INFO  L181        SettingsManager]: Resetting TreeAutomizer preferences to default values
[2021-10-12 23:59:13,120 INFO  L181        SettingsManager]: Resetting IcfgToChc preferences to default values
[2021-10-12 23:59:13,121 INFO  L181        SettingsManager]: Resetting IcfgTransformer preferences to default values
[2021-10-12 23:59:13,122 INFO  L184        SettingsManager]: ReqToTest provides no preferences, ignoring...
[2021-10-12 23:59:13,122 INFO  L181        SettingsManager]: Resetting Boogie Printer preferences to default values
[2021-10-12 23:59:13,123 INFO  L181        SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2021-10-12 23:59:13,124 INFO  L181        SettingsManager]: Resetting ReqPrinter preferences to default values
[2021-10-12 23:59:13,125 INFO  L181        SettingsManager]: Resetting Witness Printer preferences to default values
[2021-10-12 23:59:13,126 INFO  L184        SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2021-10-12 23:59:13,126 INFO  L181        SettingsManager]: Resetting CDTParser preferences to default values
[2021-10-12 23:59:13,127 INFO  L184        SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2021-10-12 23:59:13,127 INFO  L184        SettingsManager]: ReqParser provides no preferences, ignoring...
[2021-10-12 23:59:13,128 INFO  L181        SettingsManager]: Resetting SmtParser preferences to default values
[2021-10-12 23:59:13,129 INFO  L181        SettingsManager]: Resetting Witness Parser preferences to default values
[2021-10-12 23:59:13,129 INFO  L188        SettingsManager]: Finished resetting all preferences to default values...
[2021-10-12 23:59:13,130 INFO  L101        SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_331dd2e1-7421-4a57-b258-4d2476bc253c/bin/uautomizer-WNIpwEf4Nt/config/svcomp-Overflow-32bit-Automizer_Default.epf
[2021-10-12 23:59:13,154 INFO  L113        SettingsManager]: Loading preferences was successful
[2021-10-12 23:59:13,164 INFO  L115        SettingsManager]: Preferences different from defaults after loading the file:
[2021-10-12 23:59:13,165 INFO  L136        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2021-10-12 23:59:13,165 INFO  L138        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2021-10-12 23:59:13,166 INFO  L136        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2021-10-12 23:59:13,167 INFO  L138        SettingsManager]:  * Create parallel compositions if possible=false
[2021-10-12 23:59:13,167 INFO  L138        SettingsManager]:  * Use SBE=true
[2021-10-12 23:59:13,167 INFO  L136        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2021-10-12 23:59:13,167 INFO  L138        SettingsManager]:  * sizeof long=4
[2021-10-12 23:59:13,168 INFO  L138        SettingsManager]:  * Check unreachability of error function in SV-COMP mode=false
[2021-10-12 23:59:13,168 INFO  L138        SettingsManager]:  * Overapproximate operations on floating types=true
[2021-10-12 23:59:13,168 INFO  L138        SettingsManager]:  * sizeof POINTER=4
[2021-10-12 23:59:13,168 INFO  L138        SettingsManager]:  * Check division by zero=IGNORE
[2021-10-12 23:59:13,169 INFO  L138        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2021-10-12 23:59:13,169 INFO  L138        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2021-10-12 23:59:13,169 INFO  L138        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2021-10-12 23:59:13,169 INFO  L138        SettingsManager]:  * Check absence of signed integer overflows=true
[2021-10-12 23:59:13,169 INFO  L138        SettingsManager]:  * sizeof long double=12
[2021-10-12 23:59:13,170 INFO  L138        SettingsManager]:  * Check if freed pointer was valid=false
[2021-10-12 23:59:13,170 INFO  L138        SettingsManager]:  * Use constant arrays=true
[2021-10-12 23:59:13,170 INFO  L138        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2021-10-12 23:59:13,170 INFO  L136        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2021-10-12 23:59:13,171 INFO  L138        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2021-10-12 23:59:13,171 INFO  L138        SettingsManager]:  * SMT solver=External_DefaultMode
[2021-10-12 23:59:13,171 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2021-10-12 23:59:13,172 INFO  L136        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2021-10-12 23:59:13,172 INFO  L138        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2021-10-12 23:59:13,172 INFO  L138        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2021-10-12 23:59:13,172 INFO  L138        SettingsManager]:  * Trace refinement strategy=CAMEL
[2021-10-12 23:59:13,173 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2021-10-12 23:59:13,173 INFO  L138        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2021-10-12 23:59:13,173 INFO  L138        SettingsManager]:  * Trace refinement exception blacklist=NONE
[2021-10-12 23:59:13,173 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_331dd2e1-7421-4a57-b258-4d2476bc253c/bin/uautomizer-WNIpwEf4Nt/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_331dd2e1-7421-4a57-b258-4d2476bc253c/bin/uautomizer-WNIpwEf4Nt
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 -> 32bit
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b5c32c4c87bee5873040844586411da3e695cd61
[2021-10-12 23:59:13,408 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2021-10-12 23:59:13,435 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2021-10-12 23:59:13,438 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2021-10-12 23:59:13,440 INFO  L271        PluginConnector]: Initializing CDTParser...
[2021-10-12 23:59:13,440 INFO  L275        PluginConnector]: CDTParser initialized
[2021-10-12 23:59:13,441 INFO  L432   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_331dd2e1-7421-4a57-b258-4d2476bc253c/bin/uautomizer-WNIpwEf4Nt/../../sv-benchmarks/c/loop-zilu/benchmark31_disjunctive.i
[2021-10-12 23:59:13,511 INFO  L220              CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_331dd2e1-7421-4a57-b258-4d2476bc253c/bin/uautomizer-WNIpwEf4Nt/data/16fe01759/c434e6f16e8f49b5934a839c6b29e44a/FLAG7ab7bb370
[2021-10-12 23:59:13,959 INFO  L306              CDTParser]: Found 1 translation units.
[2021-10-12 23:59:13,959 INFO  L160              CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_331dd2e1-7421-4a57-b258-4d2476bc253c/sv-benchmarks/c/loop-zilu/benchmark31_disjunctive.i
[2021-10-12 23:59:13,971 INFO  L349              CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_331dd2e1-7421-4a57-b258-4d2476bc253c/bin/uautomizer-WNIpwEf4Nt/data/16fe01759/c434e6f16e8f49b5934a839c6b29e44a/FLAG7ab7bb370
[2021-10-12 23:59:14,330 INFO  L357              CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_331dd2e1-7421-4a57-b258-4d2476bc253c/bin/uautomizer-WNIpwEf4Nt/data/16fe01759/c434e6f16e8f49b5934a839c6b29e44a
[2021-10-12 23:59:14,332 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2021-10-12 23:59:14,334 INFO  L131        ToolchainWalker]: Walking toolchain with 6 elements.
[2021-10-12 23:59:14,335 INFO  L113        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2021-10-12 23:59:14,335 INFO  L271        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2021-10-12 23:59:14,353 INFO  L275        PluginConnector]: CACSL2BoogieTranslator initialized
[2021-10-12 23:59:14,354 INFO  L185        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 11:59:14" (1/1) ...
[2021-10-12 23:59:14,355 INFO  L205        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@72977d12 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 11:59:14, skipping insertion in model container
[2021-10-12 23:59:14,355 INFO  L185        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 11:59:14" (1/1) ...
[2021-10-12 23:59:14,362 INFO  L145         MainTranslator]: Starting translation in SV-COMP mode 
[2021-10-12 23:59:14,378 INFO  L178         MainTranslator]: Built tables and reachable declarations
[2021-10-12 23:59:14,548 WARN  L228   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_331dd2e1-7421-4a57-b258-4d2476bc253c/sv-benchmarks/c/loop-zilu/benchmark31_disjunctive.i[873,886]
[2021-10-12 23:59:14,553 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2021-10-12 23:59:14,560 INFO  L203         MainTranslator]: Completed pre-run
[2021-10-12 23:59:14,570 WARN  L228   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_331dd2e1-7421-4a57-b258-4d2476bc253c/sv-benchmarks/c/loop-zilu/benchmark31_disjunctive.i[873,886]
[2021-10-12 23:59:14,573 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2021-10-12 23:59:14,586 INFO  L208         MainTranslator]: Completed translation
[2021-10-12 23:59:14,587 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 11:59:14 WrapperNode
[2021-10-12 23:59:14,587 INFO  L132        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2021-10-12 23:59:14,588 INFO  L113        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2021-10-12 23:59:14,588 INFO  L271        PluginConnector]: Initializing Boogie Procedure Inliner...
[2021-10-12 23:59:14,588 INFO  L275        PluginConnector]: Boogie Procedure Inliner initialized
[2021-10-12 23:59:14,596 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 11:59:14" (1/1) ...
[2021-10-12 23:59:14,601 INFO  L185        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 11:59:14" (1/1) ...
[2021-10-12 23:59:14,617 INFO  L132        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2021-10-12 23:59:14,618 INFO  L113        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2021-10-12 23:59:14,618 INFO  L271        PluginConnector]: Initializing Boogie Preprocessor...
[2021-10-12 23:59:14,618 INFO  L275        PluginConnector]: Boogie Preprocessor initialized
[2021-10-12 23:59:14,626 INFO  L185        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 11:59:14" (1/1) ...
[2021-10-12 23:59:14,626 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 11:59:14" (1/1) ...
[2021-10-12 23:59:14,627 INFO  L185        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 11:59:14" (1/1) ...
[2021-10-12 23:59:14,628 INFO  L185        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 11:59:14" (1/1) ...
[2021-10-12 23:59:14,631 INFO  L185        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 11:59:14" (1/1) ...
[2021-10-12 23:59:14,634 INFO  L185        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 11:59:14" (1/1) ...
[2021-10-12 23:59:14,635 INFO  L185        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 11:59:14" (1/1) ...
[2021-10-12 23:59:14,637 INFO  L132        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2021-10-12 23:59:14,638 INFO  L113        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2021-10-12 23:59:14,638 INFO  L271        PluginConnector]: Initializing RCFGBuilder...
[2021-10-12 23:59:14,638 INFO  L275        PluginConnector]: RCFGBuilder initialized
[2021-10-12 23:59:14,639 INFO  L185        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 11:59:14" (1/1) ...
[2021-10-12 23:59:14,646 INFO  L170          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2021-10-12 23:59:14,660 INFO  L189       MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_331dd2e1-7421-4a57-b258-4d2476bc253c/bin/uautomizer-WNIpwEf4Nt/z3
[2021-10-12 23:59:14,671 INFO  L229       MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_331dd2e1-7421-4a57-b258-4d2476bc253c/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null)
[2021-10-12 23:59:14,693 INFO  L327       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_331dd2e1-7421-4a57-b258-4d2476bc253c/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process
[2021-10-12 23:59:14,713 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int
[2021-10-12 23:59:14,713 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2021-10-12 23:59:14,713 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2021-10-12 23:59:14,713 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2021-10-12 23:59:14,881 INFO  L294             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2021-10-12 23:59:14,882 INFO  L299             CfgBuilder]: Removed 7 assume(true) statements.
[2021-10-12 23:59:14,884 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 11:59:14 BoogieIcfgContainer
[2021-10-12 23:59:14,884 INFO  L132        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2021-10-12 23:59:14,885 INFO  L113        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2021-10-12 23:59:14,886 INFO  L271        PluginConnector]: Initializing TraceAbstraction...
[2021-10-12 23:59:14,889 INFO  L275        PluginConnector]: TraceAbstraction initialized
[2021-10-12 23:59:14,889 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.10 11:59:14" (1/3) ...
[2021-10-12 23:59:14,890 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c10f9ef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 11:59:14, skipping insertion in model container
[2021-10-12 23:59:14,891 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 11:59:14" (2/3) ...
[2021-10-12 23:59:14,891 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c10f9ef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 11:59:14, skipping insertion in model container
[2021-10-12 23:59:14,891 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 11:59:14" (3/3) ...
[2021-10-12 23:59:14,893 INFO  L111   eAbstractionObserver]: Analyzing ICFG benchmark31_disjunctive.i
[2021-10-12 23:59:14,898 INFO  L204   ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2021-10-12 23:59:14,899 INFO  L163   ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations.
[2021-10-12 23:59:14,946 INFO  L338      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2021-10-12 23:59:14,953 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, mConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR
[2021-10-12 23:59:14,953 INFO  L340      AbstractCegarLoop]: Starting to check reachability of 4 error locations.
[2021-10-12 23:59:14,967 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 19 states, 14 states have (on average 1.6428571428571428) internal successors, (23), 18 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-10-12 23:59:14,972 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 7
[2021-10-12 23:59:14,973 INFO  L504         BasicCegarLoop]: Found error trace
[2021-10-12 23:59:14,973 INFO  L512         BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1]
[2021-10-12 23:59:14,974 INFO  L402      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] ===
[2021-10-12 23:59:14,979 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2021-10-12 23:59:14,980 INFO  L82        PathProgramCache]: Analyzing trace with hash 889575309, now seen corresponding path program 1 times
[2021-10-12 23:59:14,988 INFO  L121   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-10-12 23:59:14,989 INFO  L332   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1677970655]
[2021-10-12 23:59:14,990 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-10-12 23:59:14,990 INFO  L128          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-10-12 23:59:15,083 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-12 23:59:15,168 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-10-12 23:59:15,169 INFO  L139   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-10-12 23:59:15,169 INFO  L332   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1677970655]
[2021-10-12 23:59:15,170 INFO  L160   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1677970655] provided 1 perfect and 0 imperfect interpolant sequences
[2021-10-12 23:59:15,170 INFO  L186   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2021-10-12 23:59:15,170 INFO  L199   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2021-10-12 23:59:15,172 INFO  L115   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2146777626]
[2021-10-12 23:59:15,177 INFO  L546      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2021-10-12 23:59:15,177 INFO  L103   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-10-12 23:59:15,190 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2021-10-12 23:59:15,190 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2021-10-12 23:59:15,192 INFO  L87              Difference]: Start difference. First operand  has 19 states, 14 states have (on average 1.6428571428571428) internal successors, (23), 18 states have internal predecessors, (23), 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 4 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-10-12 23:59:15,253 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-10-12 23:59:15,253 INFO  L93              Difference]: Finished difference Result 44 states and 50 transitions.
[2021-10-12 23:59:15,254 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2021-10-12 23:59:15,255 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6
[2021-10-12 23:59:15,255 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2021-10-12 23:59:15,266 INFO  L225             Difference]: With dead ends: 44
[2021-10-12 23:59:15,266 INFO  L226             Difference]: Without dead ends: 22
[2021-10-12 23:59:15,268 INFO  L781         BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 22.6ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2021-10-12 23:59:15,297 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 22 states.
[2021-10-12 23:59:15,319 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 16.
[2021-10-12 23:59:15,321 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 16 states, 12 states have (on average 1.3333333333333333) internal successors, (16), 15 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-10-12 23:59:15,332 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 16 transitions.
[2021-10-12 23:59:15,333 INFO  L78                 Accepts]: Start accepts. Automaton has 16 states and 16 transitions. Word has length 6
[2021-10-12 23:59:15,334 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2021-10-12 23:59:15,334 INFO  L470      AbstractCegarLoop]: Abstraction has 16 states and 16 transitions.
[2021-10-12 23:59:15,334 INFO  L471      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-10-12 23:59:15,334 INFO  L276                IsEmpty]: Start isEmpty. Operand 16 states and 16 transitions.
[2021-10-12 23:59:15,335 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 8
[2021-10-12 23:59:15,335 INFO  L504         BasicCegarLoop]: Found error trace
[2021-10-12 23:59:15,335 INFO  L512         BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1]
[2021-10-12 23:59:15,335 WARN  L452      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2021-10-12 23:59:15,336 INFO  L402      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] ===
[2021-10-12 23:59:15,350 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2021-10-12 23:59:15,351 INFO  L82        PathProgramCache]: Analyzing trace with hash 1807030858, now seen corresponding path program 1 times
[2021-10-12 23:59:15,351 INFO  L121   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-10-12 23:59:15,351 INFO  L332   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2114822026]
[2021-10-12 23:59:15,352 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-10-12 23:59:15,352 INFO  L128          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-10-12 23:59:15,372 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2021-10-12 23:59:15,372 INFO  L354             TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2021-10-12 23:59:15,406 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2021-10-12 23:59:15,423 INFO  L133   FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2021-10-12 23:59:15,423 INFO  L626         BasicCegarLoop]: Counterexample is feasible
[2021-10-12 23:59:15,425 INFO  L764   garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW
[2021-10-12 23:59:15,427 INFO  L764   garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW
[2021-10-12 23:59:15,427 INFO  L764   garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW
[2021-10-12 23:59:15,427 INFO  L764   garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW
[2021-10-12 23:59:15,428 WARN  L452      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2021-10-12 23:59:15,434 INFO  L179   ceAbstractionStarter]: Computing trace abstraction results
[2021-10-12 23:59:15,451 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.10 11:59:15 BoogieIcfgContainer
[2021-10-12 23:59:15,451 INFO  L132        PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2021-10-12 23:59:15,453 INFO  L113        PluginConnector]: ------------------------Witness Printer----------------------------
[2021-10-12 23:59:15,453 INFO  L271        PluginConnector]: Initializing Witness Printer...
[2021-10-12 23:59:15,454 INFO  L275        PluginConnector]: Witness Printer initialized
[2021-10-12 23:59:15,454 INFO  L185        PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 11:59:14" (3/4) ...
[2021-10-12 23:59:15,456 INFO  L131         WitnessPrinter]: Generating witness for reachability counterexample
[2021-10-12 23:59:15,485 INFO  L141         WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_331dd2e1-7421-4a57-b258-4d2476bc253c/bin/uautomizer-WNIpwEf4Nt/witness.graphml
[2021-10-12 23:59:15,485 INFO  L132        PluginConnector]: ------------------------ END Witness Printer----------------------------
[2021-10-12 23:59:15,487 INFO  L168              Benchmark]: Toolchain (without parser) took 1152.34 ms. Allocated memory is still 107.0 MB. Free memory was 63.6 MB in the beginning and 43.8 MB in the end (delta: 19.8 MB). Peak memory consumption was 16.9 MB. Max. memory is 16.1 GB.
[2021-10-12 23:59:15,487 INFO  L168              Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 107.0 MB. Free memory is still 79.6 MB. There was no memory consumed. Max. memory is 16.1 GB.
[2021-10-12 23:59:15,488 INFO  L168              Benchmark]: CACSL2BoogieTranslator took 252.03 ms. Allocated memory is still 107.0 MB. Free memory was 63.4 MB in the beginning and 81.5 MB in the end (delta: -18.1 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB.
[2021-10-12 23:59:15,489 INFO  L168              Benchmark]: Boogie Procedure Inliner took 29.07 ms. Allocated memory is still 107.0 MB. Free memory was 81.5 MB in the beginning and 80.0 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB.
[2021-10-12 23:59:15,489 INFO  L168              Benchmark]: Boogie Preprocessor took 19.51 ms. Allocated memory is still 107.0 MB. Free memory was 80.0 MB in the beginning and 79.1 MB in the end (delta: 922.0 kB). There was no memory consumed. Max. memory is 16.1 GB.
[2021-10-12 23:59:15,490 INFO  L168              Benchmark]: RCFGBuilder took 246.16 ms. Allocated memory is still 107.0 MB. Free memory was 78.8 MB in the beginning and 69.5 MB in the end (delta: 9.3 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB.
[2021-10-12 23:59:15,492 INFO  L168              Benchmark]: TraceAbstraction took 566.56 ms. Allocated memory is still 107.0 MB. Free memory was 69.2 MB in the beginning and 45.6 MB in the end (delta: 23.6 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.1 GB.
[2021-10-12 23:59:15,493 INFO  L168              Benchmark]: Witness Printer took 32.03 ms. Allocated memory is still 107.0 MB. Free memory was 45.6 MB in the beginning and 43.8 MB in the end (delta: 1.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB.
[2021-10-12 23:59:15,496 INFO  L339   ainManager$Toolchain]: #######################  End [Toolchain 1] #######################
 --- Results ---
 * Results from de.uni_freiburg.informatik.ultimate.core:
  - StatisticsResult: Toolchain Benchmarks
    Benchmark results are:
 * CDTParser took 0.25 ms. Allocated memory is still 107.0 MB. Free memory is still 79.6 MB. There was no memory consumed. Max. memory is 16.1 GB.
 * CACSL2BoogieTranslator took 252.03 ms. Allocated memory is still 107.0 MB. Free memory was 63.4 MB in the beginning and 81.5 MB in the end (delta: -18.1 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB.
 * Boogie Procedure Inliner took 29.07 ms. Allocated memory is still 107.0 MB. Free memory was 81.5 MB in the beginning and 80.0 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB.
 * Boogie Preprocessor took 19.51 ms. Allocated memory is still 107.0 MB. Free memory was 80.0 MB in the beginning and 79.1 MB in the end (delta: 922.0 kB). There was no memory consumed. Max. memory is 16.1 GB.
 * RCFGBuilder took 246.16 ms. Allocated memory is still 107.0 MB. Free memory was 78.8 MB in the beginning and 69.5 MB in the end (delta: 9.3 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB.
 * TraceAbstraction took 566.56 ms. Allocated memory is still 107.0 MB. Free memory was 69.2 MB in the beginning and 45.6 MB in the end (delta: 23.6 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.1 GB.
 * Witness Printer took 32.03 ms. Allocated memory is still 107.0 MB. Free memory was 45.6 MB in the beginning and 43.8 MB in the end (delta: 1.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB.
 * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
  - StatisticsResult: ErrorAutomatonStatistics
    NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0
  - CounterExampleResult [Line: 27]: integer overflow possible
    integer overflow possible
We found a FailurePath: 
[L20]              int x = __VERIFIER_nondet_int();
[L21]              int y = __VERIFIER_nondet_int();
[L22]  COND FALSE  !(!(x < 0))
[L23]  COND TRUE   1
[L24]  COND FALSE  !(x>=0)
[L27]              x+y

  - 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. 
  - 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, 4 error locations. Started 1 CEGAR loops. OverallTime: 487.7ms, OverallIterations: 2, TraceHistogramMax: 1, EmptinessCheckTime: 9.4ms, AutomataDifference: 90.4ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 10.1ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 16 SDtfs, 23 SDslu, 20 SDs, 0 SdLazy, 21 SolverSat, 2 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 24.4ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 22.6ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=19occurred in iteration=0, InterpolantAutomatonStates: 5, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 38.1ms AutomataMinimizationTime, 1 MinimizatonAttempts, 6 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 7.3ms SsaConstructionTime, 45.7ms SatisfiabilityAnalysisTime, 82.7ms InterpolantComputationTime, 13 NumberOfCodeBlocks, 13 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 5 ConstructedInterpolants, 0 QuantifiedInterpolants, 19 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!
[2021-10-12 23:59:15,539 INFO  L552       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_331dd2e1-7421-4a57-b258-4d2476bc253c/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0
Received shutdown request...