./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memcleanup.prp --file ../sv-benchmarks/c/list-properties/splice-1.i --full-output --architecture 32bit
--------------------------------------------------------------------------------
Checking for memory safety (memcleanup)
Using default analysis
Version 678e0110
Using bit-precise analysis
Retrying with bit-precise analysis
Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i ../sv-benchmarks/c/list-properties/splice-1.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-MemCleanup-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-memcleanup) )
--witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 336180afe1780bd2c4e24c39131e05a2fcb6ebf1
.............................................................................................................................................................................................................................................................................................................................................................................................................................................................................
Execution finished normally
Writing output log to file Ultimate.log
Writing human readable error path to file UltimateCounterExample.errorpath
Result:
FALSE(valid-memcleanup)
--- Real Ultimate output ---
Skipped default analysis because property is memsafety
### Bit-precise run ###
This is Ultimate 0.1.24-678e011
[2019-11-19 22:16:27,161 INFO L177 SettingsManager]: Resetting all preferences to default values...
[2019-11-19 22:16:27,164 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values
[2019-11-19 22:16:27,186 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2019-11-19 22:16:27,187 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2019-11-19 22:16:27,188 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2019-11-19 22:16:27,190 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2019-11-19 22:16:27,201 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values
[2019-11-19 22:16:27,206 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values
[2019-11-19 22:16:27,210 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values
[2019-11-19 22:16:27,212 INFO L181 SettingsManager]: Resetting Sifa preferences to default values
[2019-11-19 22:16:27,214 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2019-11-19 22:16:27,214 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values
[2019-11-19 22:16:27,217 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values
[2019-11-19 22:16:27,218 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2019-11-19 22:16:27,220 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values
[2019-11-19 22:16:27,222 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2019-11-19 22:16:27,223 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2019-11-19 22:16:27,226 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2019-11-19 22:16:27,230 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values
[2019-11-19 22:16:27,235 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2019-11-19 22:16:27,238 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values
[2019-11-19 22:16:27,242 INFO L181 SettingsManager]: Resetting Referee preferences to default values
[2019-11-19 22:16:27,244 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values
[2019-11-19 22:16:27,247 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2019-11-19 22:16:27,248 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2019-11-19 22:16:27,248 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values
[2019-11-19 22:16:27,250 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values
[2019-11-19 22:16:27,251 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values
[2019-11-19 22:16:27,252 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring...
[2019-11-19 22:16:27,252 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values
[2019-11-19 22:16:27,253 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2019-11-19 22:16:27,254 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values
[2019-11-19 22:16:27,255 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values
[2019-11-19 22:16:27,257 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2019-11-19 22:16:27,257 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values
[2019-11-19 22:16:27,258 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2019-11-19 22:16:27,259 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring...
[2019-11-19 22:16:27,259 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values
[2019-11-19 22:16:27,260 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values
[2019-11-19 22:16:27,261 INFO L188 SettingsManager]: Finished resetting all preferences to default values...
[2019-11-19 22:16:27,262 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-MemCleanup-32bit-Automizer_Bitvector.epf
[2019-11-19 22:16:27,281 INFO L113 SettingsManager]: Loading preferences was successful
[2019-11-19 22:16:27,281 INFO L115 SettingsManager]: Preferences different from defaults after loading the file:
[2019-11-19 22:16:27,283 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2019-11-19 22:16:27,283 INFO L138 SettingsManager]: * Create parallel compositions if possible=false
[2019-11-19 22:16:27,283 INFO L138 SettingsManager]: * Use SBE=true
[2019-11-19 22:16:27,284 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2019-11-19 22:16:27,284 INFO L138 SettingsManager]: * sizeof long=4
[2019-11-19 22:16:27,284 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false
[2019-11-19 22:16:27,284 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true
[2019-11-19 22:16:27,285 INFO L138 SettingsManager]: * sizeof POINTER=4
[2019-11-19 22:16:27,288 INFO L138 SettingsManager]: * Check division by zero=IGNORE
[2019-11-19 22:16:27,288 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true
[2019-11-19 22:16:27,289 INFO L138 SettingsManager]: * Bitprecise bitfields=true
[2019-11-19 22:16:27,289 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2019-11-19 22:16:27,289 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true
[2019-11-19 22:16:27,290 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution
[2019-11-19 22:16:27,290 INFO L138 SettingsManager]: * sizeof long double=12
[2019-11-19 22:16:27,290 INFO L138 SettingsManager]: * Use constant arrays=true
[2019-11-19 22:16:27,290 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2019-11-19 22:16:27,291 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements
[2019-11-19 22:16:27,291 INFO L138 SettingsManager]: * To the following directory=./dump/
[2019-11-19 22:16:27,291 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode
[2019-11-19 22:16:27,292 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2019-11-19 22:16:27,292 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2019-11-19 22:16:27,292 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2019-11-19 22:16:27,292 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF
[2019-11-19 22:16:27,293 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt
[2019-11-19 22:16:27,293 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode
[2019-11-19 22:16:27,293 INFO L138 SettingsManager]: * Logic for external solver=AUFBV
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 -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux
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 valid-memcleanup) )
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 -> 336180afe1780bd2c4e24c39131e05a2fcb6ebf1
[2019-11-19 22:16:27,596 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp
[2019-11-19 22:16:27,610 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2019-11-19 22:16:27,614 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2019-11-19 22:16:27,615 INFO L271 PluginConnector]: Initializing CDTParser...
[2019-11-19 22:16:27,616 INFO L275 PluginConnector]: CDTParser initialized
[2019-11-19 22:16:27,617 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/list-properties/splice-1.i
[2019-11-19 22:16:27,696 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/273115db5/1bcf29c65a52449491d2412791a2f0cb/FLAG553ca4d7a
[2019-11-19 22:16:28,281 INFO L306 CDTParser]: Found 1 translation units.
[2019-11-19 22:16:28,282 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/list-properties/splice-1.i
[2019-11-19 22:16:28,305 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/273115db5/1bcf29c65a52449491d2412791a2f0cb/FLAG553ca4d7a
[2019-11-19 22:16:28,576 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/273115db5/1bcf29c65a52449491d2412791a2f0cb
[2019-11-19 22:16:28,579 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2019-11-19 22:16:28,580 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements.
[2019-11-19 22:16:28,581 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2019-11-19 22:16:28,581 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2019-11-19 22:16:28,585 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized
[2019-11-19 22:16:28,586 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 10:16:28" (1/1) ...
[2019-11-19 22:16:28,592 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@49fb18f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:16:28, skipping insertion in model container
[2019-11-19 22:16:28,592 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 10:16:28" (1/1) ...
[2019-11-19 22:16:28,600 INFO L142 MainTranslator]: Starting translation in SV-COMP mode
[2019-11-19 22:16:28,652 INFO L173 MainTranslator]: Built tables and reachable declarations
[2019-11-19 22:16:29,092 INFO L206 PostProcessor]: Analyzing one entry point: main
[2019-11-19 22:16:29,111 INFO L188 MainTranslator]: Completed pre-run
[2019-11-19 22:16:29,201 INFO L206 PostProcessor]: Analyzing one entry point: main
[2019-11-19 22:16:29,282 INFO L192 MainTranslator]: Completed translation
[2019-11-19 22:16:29,283 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:16:29 WrapperNode
[2019-11-19 22:16:29,283 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2019-11-19 22:16:29,284 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2019-11-19 22:16:29,284 INFO L271 PluginConnector]: Initializing Boogie Preprocessor...
[2019-11-19 22:16:29,284 INFO L275 PluginConnector]: Boogie Preprocessor initialized
[2019-11-19 22:16:29,300 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:16:29" (1/1) ...
[2019-11-19 22:16:29,301 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:16:29" (1/1) ...
[2019-11-19 22:16:29,336 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:16:29" (1/1) ...
[2019-11-19 22:16:29,336 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:16:29" (1/1) ...
[2019-11-19 22:16:29,379 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:16:29" (1/1) ...
[2019-11-19 22:16:29,387 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:16:29" (1/1) ...
[2019-11-19 22:16:29,397 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:16:29" (1/1) ...
[2019-11-19 22:16:29,404 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2019-11-19 22:16:29,405 INFO L113 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2019-11-19 22:16:29,405 INFO L271 PluginConnector]: Initializing RCFGBuilder...
[2019-11-19 22:16:29,405 INFO L275 PluginConnector]: RCFGBuilder initialized
[2019-11-19 22:16:29,406 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:16:29" (1/1) ...
No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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
[2019-11-19 22:16:29,463 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init
[2019-11-19 22:16:29,464 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2019-11-19 22:16:29,464 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32
[2019-11-19 22:16:29,464 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64
[2019-11-19 22:16:29,464 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint16_identity
[2019-11-19 22:16:29,465 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint32_identity
[2019-11-19 22:16:29,465 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint64_identity
[2019-11-19 22:16:29,465 INFO L138 BoogieDeclarations]: Found implementation of procedure myexit
[2019-11-19 22:16:29,466 INFO L138 BoogieDeclarations]: Found implementation of procedure main
[2019-11-19 22:16:29,466 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error
[2019-11-19 22:16:29,466 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int
[2019-11-19 22:16:29,466 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max
[2019-11-19 22:16:29,467 INFO L130 BoogieDeclarations]: Found specification of procedure atof
[2019-11-19 22:16:29,467 INFO L130 BoogieDeclarations]: Found specification of procedure atoi
[2019-11-19 22:16:29,467 INFO L130 BoogieDeclarations]: Found specification of procedure atol
[2019-11-19 22:16:29,468 INFO L130 BoogieDeclarations]: Found specification of procedure atoll
[2019-11-19 22:16:29,468 INFO L130 BoogieDeclarations]: Found specification of procedure strtod
[2019-11-19 22:16:29,468 INFO L130 BoogieDeclarations]: Found specification of procedure strtof
[2019-11-19 22:16:29,468 INFO L130 BoogieDeclarations]: Found specification of procedure strtold
[2019-11-19 22:16:29,469 INFO L130 BoogieDeclarations]: Found specification of procedure strtol
[2019-11-19 22:16:29,469 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul
[2019-11-19 22:16:29,469 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq
[2019-11-19 22:16:29,469 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq
[2019-11-19 22:16:29,470 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll
[2019-11-19 22:16:29,470 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull
[2019-11-19 22:16:29,470 INFO L130 BoogieDeclarations]: Found specification of procedure l64a
[2019-11-19 22:16:29,470 INFO L130 BoogieDeclarations]: Found specification of procedure a64l
[2019-11-19 22:16:29,471 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32
[2019-11-19 22:16:29,471 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64
[2019-11-19 22:16:29,471 INFO L130 BoogieDeclarations]: Found specification of procedure __uint16_identity
[2019-11-19 22:16:29,471 INFO L130 BoogieDeclarations]: Found specification of procedure __uint32_identity
[2019-11-19 22:16:29,472 INFO L130 BoogieDeclarations]: Found specification of procedure __uint64_identity
[2019-11-19 22:16:29,472 INFO L130 BoogieDeclarations]: Found specification of procedure select
[2019-11-19 22:16:29,472 INFO L130 BoogieDeclarations]: Found specification of procedure pselect
[2019-11-19 22:16:29,472 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major
[2019-11-19 22:16:29,473 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor
[2019-11-19 22:16:29,473 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev
[2019-11-19 22:16:29,473 INFO L130 BoogieDeclarations]: Found specification of procedure random
[2019-11-19 22:16:29,473 INFO L130 BoogieDeclarations]: Found specification of procedure srandom
[2019-11-19 22:16:29,474 INFO L130 BoogieDeclarations]: Found specification of procedure initstate
[2019-11-19 22:16:29,474 INFO L130 BoogieDeclarations]: Found specification of procedure setstate
[2019-11-19 22:16:29,474 INFO L130 BoogieDeclarations]: Found specification of procedure random_r
[2019-11-19 22:16:29,474 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r
[2019-11-19 22:16:29,474 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r
[2019-11-19 22:16:29,475 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r
[2019-11-19 22:16:29,475 INFO L130 BoogieDeclarations]: Found specification of procedure rand
[2019-11-19 22:16:29,475 INFO L130 BoogieDeclarations]: Found specification of procedure srand
[2019-11-19 22:16:29,475 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r
[2019-11-19 22:16:29,476 INFO L130 BoogieDeclarations]: Found specification of procedure drand48
[2019-11-19 22:16:29,476 INFO L130 BoogieDeclarations]: Found specification of procedure erand48
[2019-11-19 22:16:29,476 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48
[2019-11-19 22:16:29,476 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48
[2019-11-19 22:16:29,476 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48
[2019-11-19 22:16:29,477 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48
[2019-11-19 22:16:29,477 INFO L130 BoogieDeclarations]: Found specification of procedure srand48
[2019-11-19 22:16:29,477 INFO L130 BoogieDeclarations]: Found specification of procedure seed48
[2019-11-19 22:16:29,477 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48
[2019-11-19 22:16:29,478 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r
[2019-11-19 22:16:29,478 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r
[2019-11-19 22:16:29,478 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r
[2019-11-19 22:16:29,478 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r
[2019-11-19 22:16:29,478 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r
[2019-11-19 22:16:29,479 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r
[2019-11-19 22:16:29,479 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r
[2019-11-19 22:16:29,479 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r
[2019-11-19 22:16:29,479 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r
[2019-11-19 22:16:29,480 INFO L130 BoogieDeclarations]: Found specification of procedure malloc
[2019-11-19 22:16:29,480 INFO L130 BoogieDeclarations]: Found specification of procedure calloc
[2019-11-19 22:16:29,480 INFO L130 BoogieDeclarations]: Found specification of procedure realloc
[2019-11-19 22:16:29,480 INFO L130 BoogieDeclarations]: Found specification of procedure free
[2019-11-19 22:16:29,480 INFO L130 BoogieDeclarations]: Found specification of procedure alloca
[2019-11-19 22:16:29,481 INFO L130 BoogieDeclarations]: Found specification of procedure valloc
[2019-11-19 22:16:29,481 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign
[2019-11-19 22:16:29,481 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc
[2019-11-19 22:16:29,481 INFO L130 BoogieDeclarations]: Found specification of procedure abort
[2019-11-19 22:16:29,482 INFO L130 BoogieDeclarations]: Found specification of procedure atexit
[2019-11-19 22:16:29,482 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit
[2019-11-19 22:16:29,482 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit
[2019-11-19 22:16:29,482 INFO L130 BoogieDeclarations]: Found specification of procedure exit
[2019-11-19 22:16:29,483 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit
[2019-11-19 22:16:29,483 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit
[2019-11-19 22:16:29,483 INFO L130 BoogieDeclarations]: Found specification of procedure getenv
[2019-11-19 22:16:29,483 INFO L130 BoogieDeclarations]: Found specification of procedure putenv
[2019-11-19 22:16:29,484 INFO L130 BoogieDeclarations]: Found specification of procedure setenv
[2019-11-19 22:16:29,484 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv
[2019-11-19 22:16:29,484 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv
[2019-11-19 22:16:29,484 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp
[2019-11-19 22:16:29,485 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp
[2019-11-19 22:16:29,485 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps
[2019-11-19 22:16:29,485 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp
[2019-11-19 22:16:29,485 INFO L130 BoogieDeclarations]: Found specification of procedure system
[2019-11-19 22:16:29,485 INFO L130 BoogieDeclarations]: Found specification of procedure realpath
[2019-11-19 22:16:29,486 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch
[2019-11-19 22:16:29,486 INFO L130 BoogieDeclarations]: Found specification of procedure qsort
[2019-11-19 22:16:29,486 INFO L130 BoogieDeclarations]: Found specification of procedure abs
[2019-11-19 22:16:29,486 INFO L130 BoogieDeclarations]: Found specification of procedure labs
[2019-11-19 22:16:29,486 INFO L130 BoogieDeclarations]: Found specification of procedure llabs
[2019-11-19 22:16:29,487 INFO L130 BoogieDeclarations]: Found specification of procedure div
[2019-11-19 22:16:29,487 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv
[2019-11-19 22:16:29,487 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv
[2019-11-19 22:16:29,487 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt
[2019-11-19 22:16:29,488 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt
[2019-11-19 22:16:29,488 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt
[2019-11-19 22:16:29,488 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt
[2019-11-19 22:16:29,488 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt
[2019-11-19 22:16:29,489 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt
[2019-11-19 22:16:29,489 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r
[2019-11-19 22:16:29,489 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r
[2019-11-19 22:16:29,489 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r
[2019-11-19 22:16:29,489 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r
[2019-11-19 22:16:29,490 INFO L130 BoogieDeclarations]: Found specification of procedure mblen
[2019-11-19 22:16:29,490 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc
[2019-11-19 22:16:29,490 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb
[2019-11-19 22:16:29,490 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs
[2019-11-19 22:16:29,491 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs
[2019-11-19 22:16:29,491 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch
[2019-11-19 22:16:29,491 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt
[2019-11-19 22:16:29,491 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg
[2019-11-19 22:16:29,491 INFO L130 BoogieDeclarations]: Found specification of procedure myexit
[2019-11-19 22:16:29,492 INFO L130 BoogieDeclarations]: Found specification of procedure main
[2019-11-19 22:16:29,492 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap
[2019-11-19 22:16:29,492 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4
[2019-11-19 22:16:29,492 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$
[2019-11-19 22:16:29,493 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$
[2019-11-19 22:16:29,493 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4
[2019-11-19 22:16:29,493 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init
[2019-11-19 22:16:29,493 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2019-11-19 22:16:29,494 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2019-11-19 22:16:29,885 INFO L689 $ProcedureCfgBuilder]: dead code at ProgramPoint myexitFINAL: assume true;
[2019-11-19 22:16:30,325 INFO L280 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2019-11-19 22:16:30,326 INFO L285 CfgBuilder]: Removed 4 assume(true) statements.
[2019-11-19 22:16:30,327 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 10:16:30 BoogieIcfgContainer
[2019-11-19 22:16:30,327 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2019-11-19 22:16:30,328 INFO L113 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2019-11-19 22:16:30,328 INFO L271 PluginConnector]: Initializing TraceAbstraction...
[2019-11-19 22:16:30,332 INFO L275 PluginConnector]: TraceAbstraction initialized
[2019-11-19 22:16:30,332 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 10:16:28" (1/3) ...
[2019-11-19 22:16:30,333 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@422e0674 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 10:16:30, skipping insertion in model container
[2019-11-19 22:16:30,333 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:16:29" (2/3) ...
[2019-11-19 22:16:30,333 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@422e0674 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 10:16:30, skipping insertion in model container
[2019-11-19 22:16:30,334 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 10:16:30" (3/3) ...
[2019-11-19 22:16:30,335 INFO L109 eAbstractionObserver]: Analyzing ICFG splice-1.i
[2019-11-19 22:16:30,345 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2019-11-19 22:16:30,353 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 29 error locations.
[2019-11-19 22:16:30,367 INFO L249 AbstractCegarLoop]: Starting to check reachability of 29 error locations.
[2019-11-19 22:16:30,390 INFO L373 AbstractCegarLoop]: Interprodecural is true
[2019-11-19 22:16:30,391 INFO L374 AbstractCegarLoop]: Hoare is false
[2019-11-19 22:16:30,391 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP
[2019-11-19 22:16:30,391 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE
[2019-11-19 22:16:30,391 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION
[2019-11-19 22:16:30,391 INFO L378 AbstractCegarLoop]: Difference is false
[2019-11-19 22:16:30,391 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA
[2019-11-19 22:16:30,392 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce========
[2019-11-19 22:16:30,411 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states.
[2019-11-19 22:16:30,421 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11
[2019-11-19 22:16:30,422 INFO L402 BasicCegarLoop]: Found error trace
[2019-11-19 22:16:30,423 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2019-11-19 22:16:30,423 INFO L410 AbstractCegarLoop]: === Iteration 1 === [mainErr8REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr28ENSURES_VIOLATIONMEMORY_LEAK, mainErr13REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION]===
[2019-11-19 22:16:30,429 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2019-11-19 22:16:30,429 INFO L82 PathProgramCache]: Analyzing trace with hash -1307018201, now seen corresponding path program 1 times
[2019-11-19 22:16:30,441 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF
[2019-11-19 22:16:30,442 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [368792995]
[2019-11-19 22:16:30,442 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4
Starting monitored process 2 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 2 with cvc4 --incremental --print-success --lang smt --rewrite-divk
[2019-11-19 22:16:30,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-11-19 22:16:30,681 INFO L255 TraceCheckSpWp]: Trace formula consists of 40 conjuncts, 4 conjunts are in the unsatisfiable core
[2019-11-19 22:16:30,686 INFO L278 TraceCheckSpWp]: Computing forward predicates...
[2019-11-19 22:16:30,755 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5
[2019-11-19 22:16:30,756 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts.
[2019-11-19 22:16:30,766 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2019-11-19 22:16:30,767 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts.
[2019-11-19 22:16:30,767 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5
[2019-11-19 22:16:30,789 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2019-11-19 22:16:30,789 INFO L320 TraceCheckSpWp]: Computing backward predicates...
[2019-11-19 22:16:30,809 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2019-11-19 22:16:30,810 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [368792995]
[2019-11-19 22:16:30,811 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences.
[2019-11-19 22:16:30,811 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3
[2019-11-19 22:16:30,813 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1488182985]
[2019-11-19 22:16:30,818 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states
[2019-11-19 22:16:30,819 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2019-11-19 22:16:30,834 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2019-11-19 22:16:30,836 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2019-11-19 22:16:30,838 INFO L87 Difference]: Start difference. First operand 82 states. Second operand 4 states.
[2019-11-19 22:16:31,256 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2019-11-19 22:16:31,257 INFO L93 Difference]: Finished difference Result 89 states and 100 transitions.
[2019-11-19 22:16:31,257 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states.
[2019-11-19 22:16:31,258 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 10
[2019-11-19 22:16:31,259 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2019-11-19 22:16:31,271 INFO L225 Difference]: With dead ends: 89
[2019-11-19 22:16:31,271 INFO L226 Difference]: Without dead ends: 80
[2019-11-19 22:16:31,273 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2019-11-19 22:16:31,296 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states.
[2019-11-19 22:16:31,328 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 74.
[2019-11-19 22:16:31,330 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 74 states.
[2019-11-19 22:16:31,335 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 86 transitions.
[2019-11-19 22:16:31,336 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 86 transitions. Word has length 10
[2019-11-19 22:16:31,337 INFO L84 Accepts]: Finished accepts. word is rejected.
[2019-11-19 22:16:31,337 INFO L462 AbstractCegarLoop]: Abstraction has 74 states and 86 transitions.
[2019-11-19 22:16:31,337 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states.
[2019-11-19 22:16:31,337 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 86 transitions.
[2019-11-19 22:16:31,338 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11
[2019-11-19 22:16:31,338 INFO L402 BasicCegarLoop]: Found error trace
[2019-11-19 22:16:31,339 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2019-11-19 22:16:31,541 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 cvc4 --incremental --print-success --lang smt --rewrite-divk
[2019-11-19 22:16:31,542 INFO L410 AbstractCegarLoop]: === Iteration 2 === [mainErr8REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr28ENSURES_VIOLATIONMEMORY_LEAK, mainErr13REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION]===
[2019-11-19 22:16:31,542 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2019-11-19 22:16:31,542 INFO L82 PathProgramCache]: Analyzing trace with hash -1307018200, now seen corresponding path program 1 times
[2019-11-19 22:16:31,543 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF
[2019-11-19 22:16:31,543 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1015696195]
[2019-11-19 22:16:31,544 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4
Starting monitored process 3 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 3 with cvc4 --incremental --print-success --lang smt --rewrite-divk
[2019-11-19 22:16:31,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-11-19 22:16:31,758 INFO L255 TraceCheckSpWp]: Trace formula consists of 40 conjuncts, 7 conjunts are in the unsatisfiable core
[2019-11-19 22:16:31,760 INFO L278 TraceCheckSpWp]: Computing forward predicates...
[2019-11-19 22:16:31,782 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5
[2019-11-19 22:16:31,782 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts.
[2019-11-19 22:16:31,795 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2019-11-19 22:16:31,795 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts.
[2019-11-19 22:16:31,796 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9
[2019-11-19 22:16:31,835 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2019-11-19 22:16:31,835 INFO L320 TraceCheckSpWp]: Computing backward predicates...
[2019-11-19 22:16:31,949 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2019-11-19 22:16:31,949 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1015696195]
[2019-11-19 22:16:31,949 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences.
[2019-11-19 22:16:31,950 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 5
[2019-11-19 22:16:31,951 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1450366982]
[2019-11-19 22:16:31,953 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states
[2019-11-19 22:16:31,954 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2019-11-19 22:16:31,954 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2019-11-19 22:16:31,956 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30
[2019-11-19 22:16:31,956 INFO L87 Difference]: Start difference. First operand 74 states and 86 transitions. Second operand 6 states.
[2019-11-19 22:16:32,522 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2019-11-19 22:16:32,522 INFO L93 Difference]: Finished difference Result 90 states and 98 transitions.
[2019-11-19 22:16:32,523 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states.
[2019-11-19 22:16:32,524 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 10
[2019-11-19 22:16:32,524 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2019-11-19 22:16:32,525 INFO L225 Difference]: With dead ends: 90
[2019-11-19 22:16:32,526 INFO L226 Difference]: Without dead ends: 90
[2019-11-19 22:16:32,527 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2019-11-19 22:16:32,527 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90 states.
[2019-11-19 22:16:32,533 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90 to 81.
[2019-11-19 22:16:32,534 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 81 states.
[2019-11-19 22:16:32,535 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 81 states and 90 transitions.
[2019-11-19 22:16:32,536 INFO L78 Accepts]: Start accepts. Automaton has 81 states and 90 transitions. Word has length 10
[2019-11-19 22:16:32,536 INFO L84 Accepts]: Finished accepts. word is rejected.
[2019-11-19 22:16:32,536 INFO L462 AbstractCegarLoop]: Abstraction has 81 states and 90 transitions.
[2019-11-19 22:16:32,536 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states.
[2019-11-19 22:16:32,537 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 90 transitions.
[2019-11-19 22:16:32,537 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14
[2019-11-19 22:16:32,537 INFO L402 BasicCegarLoop]: Found error trace
[2019-11-19 22:16:32,537 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2019-11-19 22:16:32,740 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 cvc4 --incremental --print-success --lang smt --rewrite-divk
[2019-11-19 22:16:32,740 INFO L410 AbstractCegarLoop]: === Iteration 3 === [mainErr8REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr28ENSURES_VIOLATIONMEMORY_LEAK, mainErr13REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION]===
[2019-11-19 22:16:32,741 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2019-11-19 22:16:32,741 INFO L82 PathProgramCache]: Analyzing trace with hash 794315540, now seen corresponding path program 1 times
[2019-11-19 22:16:32,743 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF
[2019-11-19 22:16:32,743 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [228560943]
[2019-11-19 22:16:32,743 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4
Starting monitored process 4 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 4 with cvc4 --incremental --print-success --lang smt --rewrite-divk
[2019-11-19 22:16:32,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2019-11-19 22:16:32,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2019-11-19 22:16:33,021 INFO L174 FreeRefinementEngine]: Strategy WOLF found a feasible trace
[2019-11-19 22:16:33,021 INFO L475 BasicCegarLoop]: Counterexample might be feasible
[2019-11-19 22:16:33,222 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 cvc4 --incremental --print-success --lang smt --rewrite-divk
[2019-11-19 22:16:33,231 WARN L417 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true)
[2019-11-19 22:16:33,243 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 10:16:33 BoogieIcfgContainer
[2019-11-19 22:16:33,244 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2019-11-19 22:16:33,244 INFO L113 PluginConnector]: ------------------------Witness Printer----------------------------
[2019-11-19 22:16:33,244 INFO L271 PluginConnector]: Initializing Witness Printer...
[2019-11-19 22:16:33,244 INFO L275 PluginConnector]: Witness Printer initialized
[2019-11-19 22:16:33,245 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 10:16:30" (3/4) ...
[2019-11-19 22:16:33,247 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample
[2019-11-19 22:16:33,249 WARN L417 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true)
[2019-11-19 22:16:33,295 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml
[2019-11-19 22:16:33,296 INFO L132 PluginConnector]: ------------------------ END Witness Printer----------------------------
[2019-11-19 22:16:33,298 INFO L168 Benchmark]: Toolchain (without parser) took 4717.20 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 135.8 MB). Free memory was 956.3 MB in the beginning and 875.6 MB in the end (delta: 80.7 MB). Peak memory consumption was 216.5 MB. Max. memory is 11.5 GB.
[2019-11-19 22:16:33,298 INFO L168 Benchmark]: CDTParser took 0.30 ms. Allocated memory is still 1.0 GB. Free memory is still 981.8 MB. There was no memory consumed. Max. memory is 11.5 GB.
[2019-11-19 22:16:33,299 INFO L168 Benchmark]: CACSL2BoogieTranslator took 702.12 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 135.8 MB). Free memory was 956.3 MB in the beginning and 1.1 GB in the end (delta: -154.0 MB). Peak memory consumption was 21.9 MB. Max. memory is 11.5 GB.
[2019-11-19 22:16:33,300 INFO L168 Benchmark]: Boogie Preprocessor took 120.84 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB.
[2019-11-19 22:16:33,301 INFO L168 Benchmark]: RCFGBuilder took 922.38 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 58.1 MB). Peak memory consumption was 58.1 MB. Max. memory is 11.5 GB.
[2019-11-19 22:16:33,301 INFO L168 Benchmark]: TraceAbstraction took 2915.44 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 882.3 MB in the end (delta: 169.9 MB). Peak memory consumption was 169.9 MB. Max. memory is 11.5 GB.
[2019-11-19 22:16:33,302 INFO L168 Benchmark]: Witness Printer took 51.76 ms. Allocated memory is still 1.2 GB. Free memory was 882.3 MB in the beginning and 875.6 MB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB.
[2019-11-19 22:16:33,306 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] #######################
--- Results ---
* Results from de.uni_freiburg.informatik.ultimate.core:
- StatisticsResult: Toolchain Benchmarks
Benchmark results are:
* CDTParser took 0.30 ms. Allocated memory is still 1.0 GB. Free memory is still 981.8 MB. There was no memory consumed. Max. memory is 11.5 GB.
* CACSL2BoogieTranslator took 702.12 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 135.8 MB). Free memory was 956.3 MB in the beginning and 1.1 GB in the end (delta: -154.0 MB). Peak memory consumption was 21.9 MB. Max. memory is 11.5 GB.
* Boogie Preprocessor took 120.84 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB.
* RCFGBuilder took 922.38 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 58.1 MB). Peak memory consumption was 58.1 MB. Max. memory is 11.5 GB.
* TraceAbstraction took 2915.44 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 882.3 MB in the end (delta: 169.9 MB). Peak memory consumption was 169.9 MB. Max. memory is 11.5 GB.
* Witness Printer took 51.76 ms. Allocated memory is still 1.2 GB. Free memory was 882.3 MB in the beginning and 875.6 MB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB.
* Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor:
- GenericResult: Unfinished Backtranslation
Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true)
- GenericResult: Unfinished Backtranslation
Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true)
* Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
- CounterExampleResult [Line: 520]: not all allocated memory was freed
not all allocated memory was freed
We found a FailurePath:
[L521] int flag = 1;
[L522] List a = (List) malloc(sizeof(struct node));
VAL [a={-2147483648:0}, flag=1, malloc(sizeof(struct node))={-2147483648:0}]
[L523] COND FALSE !(a == 0)
VAL [a={-2147483648:0}, flag=1, malloc(sizeof(struct node))={-2147483648:0}]
[L524] List t;
[L525] List l1;
[L526] List l2;
[L527] List b;
[L528] List u;
[L529] List p = a;
VAL [a={-2147483648:0}, flag=1, malloc(sizeof(struct node))={-2147483648:0}, p={-2147483648:0}]
[L530] COND FALSE !(__VERIFIER_nondet_int())
[L543] p->h = 3
VAL [a={-2147483648:0}, flag=1, malloc(sizeof(struct node))={-2147483648:0}, p={-2147483648:0}]
[L544] EXPR a->h
VAL [a={-2147483648:0}, a->h=3, flag=1, malloc(sizeof(struct node))={-2147483648:0}, p={-2147483648:0}]
[L544] COND TRUE a->h == 3
[L544] return 0;
VAL [\result=0, a={-2147483648:0}, flag=1, malloc(sizeof(struct node))={-2147483648:0}, p={-2147483648:0}]
- StatisticsResult: Ultimate Automizer benchmark data
CFG has 9 procedures, 98 locations, 29 error locations. Result: UNSAFE, OverallTime: 2.8s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 1.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 86 SDtfs, 325 SDslu, 73 SDs, 0 SdLazy, 191 SolverSat, 44 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 41 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=82occurred 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, 2 MinimizatonAttempts, 15 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 33 NumberOfCodeBlocks, 33 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 36 ConstructedInterpolants, 0 QuantifiedInterpolants, 1476 SizeOfPredicates, 8 NumberOfNonLiveVariables, 80 ConjunctsInSsa, 11 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available
RESULT: Ultimate proved your program to be incorrect!
Received shutdown request...