./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/loop-invariants/linear-inequality-inv-b.c --full-output --architecture 32bit
--------------------------------------------------------------------------------
Checking for ERROR reachability
Using default analysis
Version 7b2dab56
Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ae7491f-84e6-4b82-a19a-760f92441a36/bin/uautomizer-Z5i5R5N3CC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ae7491f-84e6-4b82-a19a-760f92441a36/bin/uautomizer-Z5i5R5N3CC/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ae7491f-84e6-4b82-a19a-760f92441a36/bin/uautomizer-Z5i5R5N3CC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ae7491f-84e6-4b82-a19a-760f92441a36/bin/uautomizer-Z5i5R5N3CC/config/AutomizerReach.xml -i ../../sv-benchmarks/c/loop-invariants/linear-inequality-inv-b.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ae7491f-84e6-4b82-a19a-760f92441a36/bin/uautomizer-Z5i5R5N3CC/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ae7491f-84e6-4b82-a19a-760f92441a36/bin/uautomizer-Z5i5R5N3CC --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) )
--witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 6b7e4344a1b47d68a491e369e16c1769051091e9
............................................................................................................................................................................................................................................................................................................................................................................
Execution finished normally
Writing output log to file Ultimate.log
Writing human readable error path to file UltimateCounterExample.errorpath
Result:
FALSE
--- Real Ultimate output ---
This is Ultimate 0.2.0-7b2dab5
[2021-10-11 00:30:43,745 INFO L177 SettingsManager]: Resetting all preferences to default values...
[2021-10-11 00:30:43,766 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values
[2021-10-11 00:30:43,827 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2021-10-11 00:30:43,828 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2021-10-11 00:30:43,830 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2021-10-11 00:30:43,832 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2021-10-11 00:30:43,836 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values
[2021-10-11 00:30:43,839 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values
[2021-10-11 00:30:43,841 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values
[2021-10-11 00:30:43,842 INFO L181 SettingsManager]: Resetting Sifa preferences to default values
[2021-10-11 00:30:43,845 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2021-10-11 00:30:43,845 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values
[2021-10-11 00:30:43,847 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values
[2021-10-11 00:30:43,849 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2021-10-11 00:30:43,851 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values
[2021-10-11 00:30:43,853 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2021-10-11 00:30:43,855 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2021-10-11 00:30:43,858 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2021-10-11 00:30:43,861 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values
[2021-10-11 00:30:43,864 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2021-10-11 00:30:43,866 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values
[2021-10-11 00:30:43,868 INFO L181 SettingsManager]: Resetting Referee preferences to default values
[2021-10-11 00:30:43,871 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values
[2021-10-11 00:30:43,879 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2021-10-11 00:30:43,885 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2021-10-11 00:30:43,886 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values
[2021-10-11 00:30:43,887 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values
[2021-10-11 00:30:43,893 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values
[2021-10-11 00:30:43,895 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring...
[2021-10-11 00:30:43,896 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values
[2021-10-11 00:30:43,897 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2021-10-11 00:30:43,900 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values
[2021-10-11 00:30:43,901 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values
[2021-10-11 00:30:43,904 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2021-10-11 00:30:43,905 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values
[2021-10-11 00:30:43,906 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2021-10-11 00:30:43,907 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring...
[2021-10-11 00:30:43,907 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values
[2021-10-11 00:30:43,909 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values
[2021-10-11 00:30:43,909 INFO L188 SettingsManager]: Finished resetting all preferences to default values...
[2021-10-11 00:30:43,912 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ae7491f-84e6-4b82-a19a-760f92441a36/bin/uautomizer-Z5i5R5N3CC/config/svcomp-Reach-32bit-Automizer_Default.epf
[2021-10-11 00:30:43,953 INFO L113 SettingsManager]: Loading preferences was successful
[2021-10-11 00:30:43,953 INFO L115 SettingsManager]: Preferences different from defaults after loading the file:
[2021-10-11 00:30:43,955 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2021-10-11 00:30:43,955 INFO L138 SettingsManager]: * Create parallel compositions if possible=false
[2021-10-11 00:30:43,955 INFO L138 SettingsManager]: * Use SBE=true
[2021-10-11 00:30:43,956 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2021-10-11 00:30:43,956 INFO L138 SettingsManager]: * sizeof long=4
[2021-10-11 00:30:43,956 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true
[2021-10-11 00:30:43,957 INFO L138 SettingsManager]: * sizeof POINTER=4
[2021-10-11 00:30:43,957 INFO L138 SettingsManager]: * Check division by zero=IGNORE
[2021-10-11 00:30:43,957 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2021-10-11 00:30:43,958 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2021-10-11 00:30:43,958 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2021-10-11 00:30:43,958 INFO L138 SettingsManager]: * sizeof long double=12
[2021-10-11 00:30:43,958 INFO L138 SettingsManager]: * Check if freed pointer was valid=false
[2021-10-11 00:30:43,959 INFO L138 SettingsManager]: * Use constant arrays=true
[2021-10-11 00:30:43,959 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2021-10-11 00:30:43,959 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2021-10-11 00:30:43,960 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements
[2021-10-11 00:30:43,960 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode
[2021-10-11 00:30:43,960 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2021-10-11 00:30:43,961 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2021-10-11 00:30:43,961 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2021-10-11 00:30:43,961 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2021-10-11 00:30:43,962 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL
[2021-10-11 00:30:43,962 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2021-10-11 00:30:43,962 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2021-10-11 00:30:43,963 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE
[2021-10-11 00:30:43,963 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_3ae7491f-84e6-4b82-a19a-760f92441a36/bin/uautomizer-Z5i5R5N3CC/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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ae7491f-84e6-4b82-a19a-760f92441a36/bin/uautomizer-Z5i5R5N3CC
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) )
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6b7e4344a1b47d68a491e369e16c1769051091e9
[2021-10-11 00:30:44,259 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2021-10-11 00:30:44,289 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2021-10-11 00:30:44,295 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2021-10-11 00:30:44,296 INFO L271 PluginConnector]: Initializing CDTParser...
[2021-10-11 00:30:44,297 INFO L275 PluginConnector]: CDTParser initialized
[2021-10-11 00:30:44,300 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ae7491f-84e6-4b82-a19a-760f92441a36/bin/uautomizer-Z5i5R5N3CC/../../sv-benchmarks/c/loop-invariants/linear-inequality-inv-b.c
[2021-10-11 00:30:44,395 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ae7491f-84e6-4b82-a19a-760f92441a36/bin/uautomizer-Z5i5R5N3CC/data/060a3e066/38aac02a37364842ac3f6a0d8d055ba5/FLAGb4be6c0e2
[2021-10-11 00:30:44,890 INFO L306 CDTParser]: Found 1 translation units.
[2021-10-11 00:30:44,891 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ae7491f-84e6-4b82-a19a-760f92441a36/sv-benchmarks/c/loop-invariants/linear-inequality-inv-b.c
[2021-10-11 00:30:44,900 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ae7491f-84e6-4b82-a19a-760f92441a36/bin/uautomizer-Z5i5R5N3CC/data/060a3e066/38aac02a37364842ac3f6a0d8d055ba5/FLAGb4be6c0e2
[2021-10-11 00:30:45,250 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ae7491f-84e6-4b82-a19a-760f92441a36/bin/uautomizer-Z5i5R5N3CC/data/060a3e066/38aac02a37364842ac3f6a0d8d055ba5
[2021-10-11 00:30:45,253 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2021-10-11 00:30:45,258 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements.
[2021-10-11 00:30:45,263 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2021-10-11 00:30:45,263 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2021-10-11 00:30:45,267 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized
[2021-10-11 00:30:45,269 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 12:30:45" (1/1) ...
[2021-10-11 00:30:45,272 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@71c69a2f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:30:45, skipping insertion in model container
[2021-10-11 00:30:45,273 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 12:30:45" (1/1) ...
[2021-10-11 00:30:45,282 INFO L145 MainTranslator]: Starting translation in SV-COMP mode
[2021-10-11 00:30:45,296 INFO L178 MainTranslator]: Built tables and reachable declarations
[2021-10-11 00:30:45,454 WARN L226 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_3ae7491f-84e6-4b82-a19a-760f92441a36/sv-benchmarks/c/loop-invariants/linear-inequality-inv-b.c[557,570]
[2021-10-11 00:30:45,459 WARN L226 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_3ae7491f-84e6-4b82-a19a-760f92441a36/sv-benchmarks/c/loop-invariants/linear-inequality-inv-b.c[613,626]
[2021-10-11 00:30:45,461 INFO L206 PostProcessor]: Analyzing one entry point: main
[2021-10-11 00:30:45,481 INFO L203 MainTranslator]: Completed pre-run
[2021-10-11 00:30:45,508 WARN L226 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_3ae7491f-84e6-4b82-a19a-760f92441a36/sv-benchmarks/c/loop-invariants/linear-inequality-inv-b.c[557,570]
[2021-10-11 00:30:45,510 WARN L226 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_3ae7491f-84e6-4b82-a19a-760f92441a36/sv-benchmarks/c/loop-invariants/linear-inequality-inv-b.c[613,626]
[2021-10-11 00:30:45,512 INFO L206 PostProcessor]: Analyzing one entry point: main
[2021-10-11 00:30:45,529 INFO L208 MainTranslator]: Completed translation
[2021-10-11 00:30:45,529 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:30:45 WrapperNode
[2021-10-11 00:30:45,530 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2021-10-11 00:30:45,531 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2021-10-11 00:30:45,531 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner...
[2021-10-11 00:30:45,532 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized
[2021-10-11 00:30:45,540 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:30:45" (1/1) ...
[2021-10-11 00:30:45,548 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:30:45" (1/1) ...
[2021-10-11 00:30:45,566 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2021-10-11 00:30:45,567 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2021-10-11 00:30:45,567 INFO L271 PluginConnector]: Initializing Boogie Preprocessor...
[2021-10-11 00:30:45,567 INFO L275 PluginConnector]: Boogie Preprocessor initialized
[2021-10-11 00:30:45,577 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:30:45" (1/1) ...
[2021-10-11 00:30:45,577 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:30:45" (1/1) ...
[2021-10-11 00:30:45,579 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:30:45" (1/1) ...
[2021-10-11 00:30:45,579 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:30:45" (1/1) ...
[2021-10-11 00:30:45,585 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:30:45" (1/1) ...
[2021-10-11 00:30:45,589 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:30:45" (1/1) ...
[2021-10-11 00:30:45,590 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:30:45" (1/1) ...
[2021-10-11 00:30:45,592 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2021-10-11 00:30:45,593 INFO L113 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2021-10-11 00:30:45,593 INFO L271 PluginConnector]: Initializing RCFGBuilder...
[2021-10-11 00:30:45,594 INFO L275 PluginConnector]: RCFGBuilder initialized
[2021-10-11 00:30:45,595 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:30:45" (1/1) ...
No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ae7491f-84e6-4b82-a19a-760f92441a36/bin/uautomizer-Z5i5R5N3CC/z3
Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2021-10-11 00:30:45,693 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2021-10-11 00:30:45,694 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2021-10-11 00:30:45,694 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int
[2021-10-11 00:30:45,695 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2021-10-11 00:30:45,923 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2021-10-11 00:30:45,923 INFO L299 CfgBuilder]: Removed 5 assume(true) statements.
[2021-10-11 00:30:45,925 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 12:30:45 BoogieIcfgContainer
[2021-10-11 00:30:45,926 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2021-10-11 00:30:45,928 INFO L113 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2021-10-11 00:30:45,928 INFO L271 PluginConnector]: Initializing TraceAbstraction...
[2021-10-11 00:30:45,932 INFO L275 PluginConnector]: TraceAbstraction initialized
[2021-10-11 00:30:45,933 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 12:30:45" (1/3) ...
[2021-10-11 00:30:45,934 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@15f84168 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 12:30:45, skipping insertion in model container
[2021-10-11 00:30:45,934 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:30:45" (2/3) ...
[2021-10-11 00:30:45,935 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@15f84168 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 12:30:45, skipping insertion in model container
[2021-10-11 00:30:45,935 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 12:30:45" (3/3) ...
[2021-10-11 00:30:45,937 INFO L111 eAbstractionObserver]: Analyzing ICFG linear-inequality-inv-b.c
[2021-10-11 00:30:45,953 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2021-10-11 00:30:45,957 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations.
[2021-10-11 00:30:45,971 INFO L253 AbstractCegarLoop]: Starting to check reachability of 2 error locations.
[2021-10-11 00:30:46,001 INFO L377 AbstractCegarLoop]: Interprodecural is true
[2021-10-11 00:30:46,001 INFO L378 AbstractCegarLoop]: Hoare is true
[2021-10-11 00:30:46,001 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP
[2021-10-11 00:30:46,002 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE
[2021-10-11 00:30:46,002 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION
[2021-10-11 00:30:46,002 INFO L382 AbstractCegarLoop]: Difference is false
[2021-10-11 00:30:46,002 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA
[2021-10-11 00:30:46,003 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce========
[2021-10-11 00:30:46,016 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states.
[2021-10-11 00:30:46,021 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7
[2021-10-11 00:30:46,022 INFO L414 BasicCegarLoop]: Found error trace
[2021-10-11 00:30:46,022 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1]
[2021-10-11 00:30:46,023 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2021-10-11 00:30:46,029 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-10-11 00:30:46,030 INFO L82 PathProgramCache]: Analyzing trace with hash 889577263, now seen corresponding path program 1 times
[2021-10-11 00:30:46,044 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-10-11 00:30:46,045 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [877952272]
[2021-10-11 00:30:46,045 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-10-11 00:30:46,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-11 00:30:46,251 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-10-11 00:30:46,251 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [877952272]
[2021-10-11 00:30:46,252 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2021-10-11 00:30:46,253 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2021-10-11 00:30:46,254 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [642653885]
[2021-10-11 00:30:46,259 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states
[2021-10-11 00:30:46,259 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-10-11 00:30:46,274 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2021-10-11 00:30:46,275 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2021-10-11 00:30:46,278 INFO L87 Difference]: Start difference. First operand 13 states. Second operand 2 states.
[2021-10-11 00:30:46,294 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-10-11 00:30:46,295 INFO L93 Difference]: Finished difference Result 20 states and 25 transitions.
[2021-10-11 00:30:46,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states.
[2021-10-11 00:30:46,296 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 6
[2021-10-11 00:30:46,297 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-10-11 00:30:46,306 INFO L225 Difference]: With dead ends: 20
[2021-10-11 00:30:46,306 INFO L226 Difference]: Without dead ends: 7
[2021-10-11 00:30:46,309 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2021-10-11 00:30:46,337 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7 states.
[2021-10-11 00:30:46,365 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7 to 7.
[2021-10-11 00:30:46,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states.
[2021-10-11 00:30:46,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 7 transitions.
[2021-10-11 00:30:46,369 INFO L78 Accepts]: Start accepts. Automaton has 7 states and 7 transitions. Word has length 6
[2021-10-11 00:30:46,369 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-10-11 00:30:46,369 INFO L481 AbstractCegarLoop]: Abstraction has 7 states and 7 transitions.
[2021-10-11 00:30:46,370 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states.
[2021-10-11 00:30:46,370 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 7 transitions.
[2021-10-11 00:30:46,370 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7
[2021-10-11 00:30:46,370 INFO L414 BasicCegarLoop]: Found error trace
[2021-10-11 00:30:46,371 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1]
[2021-10-11 00:30:46,371 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2021-10-11 00:30:46,371 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2021-10-11 00:30:46,372 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-10-11 00:30:46,373 INFO L82 PathProgramCache]: Analyzing trace with hash 889573419, now seen corresponding path program 1 times
[2021-10-11 00:30:46,373 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-10-11 00:30:46,373 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [680891837]
[2021-10-11 00:30:46,373 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-10-11 00:30:46,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-11 00:30:46,537 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-10-11 00:30:46,537 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [680891837]
[2021-10-11 00:30:46,538 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2021-10-11 00:30:46,538 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2021-10-11 00:30:46,538 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1992282664]
[2021-10-11 00:30:46,540 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states
[2021-10-11 00:30:46,540 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-10-11 00:30:46,541 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2021-10-11 00:30:46,542 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2021-10-11 00:30:46,542 INFO L87 Difference]: Start difference. First operand 7 states and 7 transitions. Second operand 3 states.
[2021-10-11 00:30:46,555 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-10-11 00:30:46,556 INFO L93 Difference]: Finished difference Result 11 states and 11 transitions.
[2021-10-11 00:30:46,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2021-10-11 00:30:46,557 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 6
[2021-10-11 00:30:46,557 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-10-11 00:30:46,557 INFO L225 Difference]: With dead ends: 11
[2021-10-11 00:30:46,557 INFO L226 Difference]: Without dead ends: 8
[2021-10-11 00:30:46,558 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2021-10-11 00:30:46,559 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states.
[2021-10-11 00:30:46,561 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 8.
[2021-10-11 00:30:46,561 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states.
[2021-10-11 00:30:46,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 8 transitions.
[2021-10-11 00:30:46,562 INFO L78 Accepts]: Start accepts. Automaton has 8 states and 8 transitions. Word has length 6
[2021-10-11 00:30:46,563 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-10-11 00:30:46,563 INFO L481 AbstractCegarLoop]: Abstraction has 8 states and 8 transitions.
[2021-10-11 00:30:46,563 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states.
[2021-10-11 00:30:46,563 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 8 transitions.
[2021-10-11 00:30:46,564 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8
[2021-10-11 00:30:46,564 INFO L414 BasicCegarLoop]: Found error trace
[2021-10-11 00:30:46,564 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1]
[2021-10-11 00:30:46,565 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2021-10-11 00:30:46,565 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2021-10-11 00:30:46,566 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-10-11 00:30:46,566 INFO L82 PathProgramCache]: Analyzing trace with hash 1807024099, now seen corresponding path program 1 times
[2021-10-11 00:30:46,566 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-10-11 00:30:46,567 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [403281099]
[2021-10-11 00:30:46,567 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-10-11 00:30:46,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-11 00:30:46,661 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-10-11 00:30:46,662 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [403281099]
[2021-10-11 00:30:46,662 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1743352964]
[2021-10-11 00:30:46,662 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ae7491f-84e6-4b82-a19a-760f92441a36/bin/uautomizer-Z5i5R5N3CC/z3
Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2021-10-11 00:30:46,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-11 00:30:46,747 INFO L263 TraceCheckSpWp]: Trace formula consists of 50 conjuncts, 5 conjunts are in the unsatisfiable core
[2021-10-11 00:30:46,751 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2021-10-11 00:30:46,813 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-10-11 00:30:46,813 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences.
[2021-10-11 00:30:46,813 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 5
[2021-10-11 00:30:46,814 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1493492027]
[2021-10-11 00:30:46,814 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states
[2021-10-11 00:30:46,814 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-10-11 00:30:46,815 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2021-10-11 00:30:46,816 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2021-10-11 00:30:46,816 INFO L87 Difference]: Start difference. First operand 8 states and 8 transitions. Second operand 5 states.
[2021-10-11 00:30:46,856 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-10-11 00:30:46,856 INFO L93 Difference]: Finished difference Result 12 states and 12 transitions.
[2021-10-11 00:30:46,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states.
[2021-10-11 00:30:46,857 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 7
[2021-10-11 00:30:46,857 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-10-11 00:30:46,858 INFO L225 Difference]: With dead ends: 12
[2021-10-11 00:30:46,858 INFO L226 Difference]: Without dead ends: 9
[2021-10-11 00:30:46,859 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30
[2021-10-11 00:30:46,859 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states.
[2021-10-11 00:30:46,861 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 9.
[2021-10-11 00:30:46,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states.
[2021-10-11 00:30:46,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions.
[2021-10-11 00:30:46,862 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 7
[2021-10-11 00:30:46,862 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-10-11 00:30:46,862 INFO L481 AbstractCegarLoop]: Abstraction has 9 states and 9 transitions.
[2021-10-11 00:30:46,863 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states.
[2021-10-11 00:30:46,863 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions.
[2021-10-11 00:30:46,863 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9
[2021-10-11 00:30:46,863 INFO L414 BasicCegarLoop]: Found error trace
[2021-10-11 00:30:46,863 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1]
[2021-10-11 00:30:47,079 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2
[2021-10-11 00:30:47,080 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2021-10-11 00:30:47,080 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-10-11 00:30:47,081 INFO L82 PathProgramCache]: Analyzing trace with hash 183224107, now seen corresponding path program 2 times
[2021-10-11 00:30:47,081 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-10-11 00:30:47,081 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [951987423]
[2021-10-11 00:30:47,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-10-11 00:30:47,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2021-10-11 00:30:47,155 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2021-10-11 00:30:47,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2021-10-11 00:30:47,197 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2021-10-11 00:30:47,219 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2021-10-11 00:30:47,219 INFO L523 BasicCegarLoop]: Counterexample might be feasible
[2021-10-11 00:30:47,220 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2021-10-11 00:30:47,246 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.10 12:30:47 BoogieIcfgContainer
[2021-10-11 00:30:47,247 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2021-10-11 00:30:47,248 INFO L113 PluginConnector]: ------------------------Witness Printer----------------------------
[2021-10-11 00:30:47,248 INFO L271 PluginConnector]: Initializing Witness Printer...
[2021-10-11 00:30:47,248 INFO L275 PluginConnector]: Witness Printer initialized
[2021-10-11 00:30:47,249 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 12:30:45" (3/4) ...
[2021-10-11 00:30:47,251 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample
[2021-10-11 00:30:47,299 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ae7491f-84e6-4b82-a19a-760f92441a36/bin/uautomizer-Z5i5R5N3CC/witness.graphml
[2021-10-11 00:30:47,299 INFO L132 PluginConnector]: ------------------------ END Witness Printer----------------------------
[2021-10-11 00:30:47,301 INFO L168 Benchmark]: Toolchain (without parser) took 2043.11 ms. Allocated memory was 86.0 MB in the beginning and 109.1 MB in the end (delta: 23.1 MB). Free memory was 52.4 MB in the beginning and 55.2 MB in the end (delta: -2.8 MB). Peak memory consumption was 17.7 MB. Max. memory is 16.1 GB.
[2021-10-11 00:30:47,302 INFO L168 Benchmark]: CDTParser took 0.65 ms. Allocated memory is still 86.0 MB. Free memory was 59.4 MB in the beginning and 59.4 MB in the end (delta: 31.3 kB). There was no memory consumed. Max. memory is 16.1 GB.
[2021-10-11 00:30:47,303 INFO L168 Benchmark]: CACSL2BoogieTranslator took 267.41 ms. Allocated memory was 86.0 MB in the beginning and 109.1 MB in the end (delta: 23.1 MB). Free memory was 52.2 MB in the beginning and 86.1 MB in the end (delta: -33.9 MB). Peak memory consumption was 7.6 MB. Max. memory is 16.1 GB.
[2021-10-11 00:30:47,304 INFO L168 Benchmark]: Boogie Procedure Inliner took 34.92 ms. Allocated memory is still 109.1 MB. Free memory was 86.1 MB in the beginning and 84.8 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB.
[2021-10-11 00:30:47,304 INFO L168 Benchmark]: Boogie Preprocessor took 25.23 ms. Allocated memory is still 109.1 MB. Free memory was 84.8 MB in the beginning and 83.7 MB in the end (delta: 1.1 MB). There was no memory consumed. Max. memory is 16.1 GB.
[2021-10-11 00:30:47,305 INFO L168 Benchmark]: RCFGBuilder took 333.21 ms. Allocated memory is still 109.1 MB. Free memory was 83.7 MB in the beginning and 72.2 MB in the end (delta: 11.5 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB.
[2021-10-11 00:30:47,306 INFO L168 Benchmark]: TraceAbstraction took 1319.23 ms. Allocated memory is still 109.1 MB. Free memory was 71.9 MB in the beginning and 56.8 MB in the end (delta: 15.1 MB). Peak memory consumption was 14.3 MB. Max. memory is 16.1 GB.
[2021-10-11 00:30:47,307 INFO L168 Benchmark]: Witness Printer took 51.56 ms. Allocated memory is still 109.1 MB. Free memory was 56.8 MB in the beginning and 55.2 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB.
[2021-10-11 00:30:47,311 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] #######################
--- Results ---
* Results from de.uni_freiburg.informatik.ultimate.core:
- StatisticsResult: Toolchain Benchmarks
Benchmark results are:
* CDTParser took 0.65 ms. Allocated memory is still 86.0 MB. Free memory was 59.4 MB in the beginning and 59.4 MB in the end (delta: 31.3 kB). There was no memory consumed. Max. memory is 16.1 GB.
* CACSL2BoogieTranslator took 267.41 ms. Allocated memory was 86.0 MB in the beginning and 109.1 MB in the end (delta: 23.1 MB). Free memory was 52.2 MB in the beginning and 86.1 MB in the end (delta: -33.9 MB). Peak memory consumption was 7.6 MB. Max. memory is 16.1 GB.
* Boogie Procedure Inliner took 34.92 ms. Allocated memory is still 109.1 MB. Free memory was 86.1 MB in the beginning and 84.8 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB.
* Boogie Preprocessor took 25.23 ms. Allocated memory is still 109.1 MB. Free memory was 84.8 MB in the beginning and 83.7 MB in the end (delta: 1.1 MB). There was no memory consumed. Max. memory is 16.1 GB.
* RCFGBuilder took 333.21 ms. Allocated memory is still 109.1 MB. Free memory was 83.7 MB in the beginning and 72.2 MB in the end (delta: 11.5 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB.
* TraceAbstraction took 1319.23 ms. Allocated memory is still 109.1 MB. Free memory was 71.9 MB in the beginning and 56.8 MB in the end (delta: 15.1 MB). Peak memory consumption was 14.3 MB. Max. memory is 16.1 GB.
* Witness Printer took 51.56 ms. Allocated memory is still 109.1 MB. Free memory was 56.8 MB in the beginning and 55.2 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB.
* Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
- CounterExampleResult [Line: 18]: a call to reach_error is reachable
a call to reach_error is reachable
We found a FailurePath:
[L5] unsigned char n = __VERIFIER_nondet_uchar();
[L6] COND FALSE !(n == 0)
[L9] unsigned char v = 0;
[L10] unsigned char s = 0;
[L11] unsigned int i = 0;
[L12] COND TRUE i < n
[L13] v = __VERIFIER_nondet_uchar()
[L14] s += v
[L15] ++i
[L12] COND TRUE i < n
[L13] v = __VERIFIER_nondet_uchar()
[L14] s += v
[L15] ++i
[L12] COND FALSE !(i < n)
[L17] COND TRUE s < v
[L18] reach_error()
- StatisticsResult: Ultimate Automizer benchmark data
CFG has 1 procedures, 13 locations, 2 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 1.2s, OverallIterations: 4, TraceHistogramMax: 2, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 24 SDtfs, 0 SDslu, 12 SDs, 0 SdLazy, 14 SolverSat, 1 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 16 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=13occurred in iteration=0, 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, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 34 NumberOfCodeBlocks, 34 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 22 ConstructedInterpolants, 0 QuantifiedInterpolants, 412 SizeOfPredicates, 2 NumberOfNonLiveVariables, 50 ConjunctsInSsa, 5 ConjunctsInUnsatCore, 4 InterpolantComputations, 2 PerfectInterpolantSequences, 0/2 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!
Received shutdown request...