java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --traceabstraction.trace.refinement.strategy SIFA_TAIPAN --sifa.abstract.domain CompoundDomain --rcfgbuilder.size.of.a.code.block LoopFreeBlock --sifa.call.summarizer TopInputCallSummarizer --sifa.fluid SizeLimitFluid --sifa.simplification.technique SIMPLIFY_QUICK -i ../../../trunk/examples/svcomp/list-simple/sll2c_append_unequal.i
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This is Ultimate 0.1.24-f4eb214f-m
[2019-10-13 22:56:43,131 INFO L177 SettingsManager]: Resetting all preferences to default values...
[2019-10-13 22:56:43,134 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values
[2019-10-13 22:56:43,154 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2019-10-13 22:56:43,155 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2019-10-13 22:56:43,157 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2019-10-13 22:56:43,159 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2019-10-13 22:56:43,170 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values
[2019-10-13 22:56:43,176 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values
[2019-10-13 22:56:43,178 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values
[2019-10-13 22:56:43,180 INFO L181 SettingsManager]: Resetting Sifa preferences to default values
[2019-10-13 22:56:43,181 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2019-10-13 22:56:43,182 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values
[2019-10-13 22:56:43,185 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values
[2019-10-13 22:56:43,188 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2019-10-13 22:56:43,190 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values
[2019-10-13 22:56:43,191 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2019-10-13 22:56:43,192 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2019-10-13 22:56:43,194 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2019-10-13 22:56:43,199 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values
[2019-10-13 22:56:43,204 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2019-10-13 22:56:43,208 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values
[2019-10-13 22:56:43,210 INFO L181 SettingsManager]: Resetting Referee preferences to default values
[2019-10-13 22:56:43,211 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values
[2019-10-13 22:56:43,213 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2019-10-13 22:56:43,213 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2019-10-13 22:56:43,214 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values
[2019-10-13 22:56:43,215 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values
[2019-10-13 22:56:43,216 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values
[2019-10-13 22:56:43,217 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring...
[2019-10-13 22:56:43,218 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values
[2019-10-13 22:56:43,218 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2019-10-13 22:56:43,219 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values
[2019-10-13 22:56:43,220 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values
[2019-10-13 22:56:43,221 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2019-10-13 22:56:43,222 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values
[2019-10-13 22:56:43,223 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2019-10-13 22:56:43,223 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring...
[2019-10-13 22:56:43,223 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values
[2019-10-13 22:56:43,224 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values
[2019-10-13 22:56:43,225 INFO L188 SettingsManager]: Finished resetting all preferences to default values...
[2019-10-13 22:56:43,226 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf
[2019-10-13 22:56:43,254 INFO L113 SettingsManager]: Loading preferences was successful
[2019-10-13 22:56:43,254 INFO L115 SettingsManager]: Preferences different from defaults after loading the file:
[2019-10-13 22:56:43,256 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2019-10-13 22:56:43,256 INFO L138 SettingsManager]: * Create parallel compositions if possible=false
[2019-10-13 22:56:43,256 INFO L138 SettingsManager]: * Use SBE=true
[2019-10-13 22:56:43,256 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2019-10-13 22:56:43,257 INFO L138 SettingsManager]: * sizeof long=4
[2019-10-13 22:56:43,257 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true
[2019-10-13 22:56:43,257 INFO L138 SettingsManager]: * sizeof POINTER=4
[2019-10-13 22:56:43,257 INFO L138 SettingsManager]: * Check division by zero=IGNORE
[2019-10-13 22:56:43,257 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2019-10-13 22:56:43,258 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2019-10-13 22:56:43,258 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2019-10-13 22:56:43,258 INFO L138 SettingsManager]: * sizeof long double=12
[2019-10-13 22:56:43,258 INFO L138 SettingsManager]: * Check if freed pointer was valid=false
[2019-10-13 22:56:43,258 INFO L138 SettingsManager]: * Use constant arrays=true
[2019-10-13 22:56:43,259 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2019-10-13 22:56:43,259 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2019-10-13 22:56:43,259 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements
[2019-10-13 22:56:43,259 INFO L138 SettingsManager]: * To the following directory=./dump/
[2019-10-13 22:56:43,259 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode
[2019-10-13 22:56:43,260 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2019-10-13 22:56:43,260 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2019-10-13 22:56:43,260 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2019-10-13 22:56:43,260 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2019-10-13 22:56:43,261 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL
[2019-10-13 22:56:43,261 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2019-10-13 22:56:43,261 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2019-10-13 22:56:43,261 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> SIFA_TAIPAN
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Abstract Domain -> CompoundDomain
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> LoopFreeBlock
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Call Summarizer -> TopInputCallSummarizer
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Fluid -> SizeLimitFluid
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Simplification Technique -> SIMPLIFY_QUICK
[2019-10-13 22:56:43,617 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp
[2019-10-13 22:56:43,630 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2019-10-13 22:56:43,633 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2019-10-13 22:56:43,635 INFO L271 PluginConnector]: Initializing CDTParser...
[2019-10-13 22:56:43,635 INFO L275 PluginConnector]: CDTParser initialized
[2019-10-13 22:56:43,636 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/list-simple/sll2c_append_unequal.i
[2019-10-13 22:56:43,699 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1bfbe0362/f6d585b3c3fa460a85d39a6780451946/FLAG9d6669c1b
[2019-10-13 22:56:44,270 INFO L306 CDTParser]: Found 1 translation units.
[2019-10-13 22:56:44,271 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/list-simple/sll2c_append_unequal.i
[2019-10-13 22:56:44,289 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1bfbe0362/f6d585b3c3fa460a85d39a6780451946/FLAG9d6669c1b
[2019-10-13 22:56:44,574 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1bfbe0362/f6d585b3c3fa460a85d39a6780451946
[2019-10-13 22:56:44,585 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2019-10-13 22:56:44,586 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements.
[2019-10-13 22:56:44,587 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2019-10-13 22:56:44,588 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2019-10-13 22:56:44,591 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized
[2019-10-13 22:56:44,592 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 10:56:44" (1/1) ...
[2019-10-13 22:56:44,596 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@34098e1d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:56:44, skipping insertion in model container
[2019-10-13 22:56:44,596 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 10:56:44" (1/1) ...
[2019-10-13 22:56:44,604 INFO L142 MainTranslator]: Starting translation in SV-COMP mode
[2019-10-13 22:56:44,660 INFO L173 MainTranslator]: Built tables and reachable declarations
[2019-10-13 22:56:45,277 INFO L206 PostProcessor]: Analyzing one entry point: main
[2019-10-13 22:56:45,293 INFO L188 MainTranslator]: Completed pre-run
[2019-10-13 22:56:45,349 INFO L206 PostProcessor]: Analyzing one entry point: main
[2019-10-13 22:56:45,406 INFO L192 MainTranslator]: Completed translation
[2019-10-13 22:56:45,406 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:56:45 WrapperNode
[2019-10-13 22:56:45,407 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2019-10-13 22:56:45,407 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2019-10-13 22:56:45,407 INFO L271 PluginConnector]: Initializing Boogie Preprocessor...
[2019-10-13 22:56:45,408 INFO L275 PluginConnector]: Boogie Preprocessor initialized
[2019-10-13 22:56:45,421 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:56:45" (1/1) ...
[2019-10-13 22:56:45,422 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:56:45" (1/1) ...
[2019-10-13 22:56:45,444 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:56:45" (1/1) ...
[2019-10-13 22:56:45,444 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:56:45" (1/1) ...
[2019-10-13 22:56:45,477 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:56:45" (1/1) ...
[2019-10-13 22:56:45,488 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:56:45" (1/1) ...
[2019-10-13 22:56:45,495 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:56:45" (1/1) ...
[2019-10-13 22:56:45,508 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2019-10-13 22:56:45,508 INFO L113 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2019-10-13 22:56:45,509 INFO L271 PluginConnector]: Initializing RCFGBuilder...
[2019-10-13 22:56:45,509 INFO L275 PluginConnector]: RCFGBuilder initialized
[2019-10-13 22:56:45,510 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:56:45" (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
[2019-10-13 22:56:45,573 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init
[2019-10-13 22:56:45,573 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2019-10-13 22:56:45,573 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32
[2019-10-13 22:56:45,573 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64
[2019-10-13 22:56:45,573 INFO L138 BoogieDeclarations]: Found implementation of procedure myexit
[2019-10-13 22:56:45,574 INFO L138 BoogieDeclarations]: Found implementation of procedure node_create
[2019-10-13 22:56:45,574 INFO L138 BoogieDeclarations]: Found implementation of procedure sll_circular_create
[2019-10-13 22:56:45,574 INFO L138 BoogieDeclarations]: Found implementation of procedure sll_circular_destroy
[2019-10-13 22:56:45,574 INFO L138 BoogieDeclarations]: Found implementation of procedure sll_circular_append
[2019-10-13 22:56:45,574 INFO L138 BoogieDeclarations]: Found implementation of procedure main
[2019-10-13 22:56:45,575 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error
[2019-10-13 22:56:45,575 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32
[2019-10-13 22:56:45,575 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64
[2019-10-13 22:56:45,575 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max
[2019-10-13 22:56:45,575 INFO L130 BoogieDeclarations]: Found specification of procedure atof
[2019-10-13 22:56:45,576 INFO L130 BoogieDeclarations]: Found specification of procedure atoi
[2019-10-13 22:56:45,576 INFO L130 BoogieDeclarations]: Found specification of procedure atol
[2019-10-13 22:56:45,576 INFO L130 BoogieDeclarations]: Found specification of procedure atoll
[2019-10-13 22:56:45,576 INFO L130 BoogieDeclarations]: Found specification of procedure strtod
[2019-10-13 22:56:45,576 INFO L130 BoogieDeclarations]: Found specification of procedure strtof
[2019-10-13 22:56:45,577 INFO L130 BoogieDeclarations]: Found specification of procedure strtold
[2019-10-13 22:56:45,577 INFO L130 BoogieDeclarations]: Found specification of procedure strtol
[2019-10-13 22:56:45,577 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul
[2019-10-13 22:56:45,578 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq
[2019-10-13 22:56:45,578 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq
[2019-10-13 22:56:45,578 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll
[2019-10-13 22:56:45,578 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull
[2019-10-13 22:56:45,578 INFO L130 BoogieDeclarations]: Found specification of procedure l64a
[2019-10-13 22:56:45,579 INFO L130 BoogieDeclarations]: Found specification of procedure a64l
[2019-10-13 22:56:45,579 INFO L130 BoogieDeclarations]: Found specification of procedure select
[2019-10-13 22:56:45,579 INFO L130 BoogieDeclarations]: Found specification of procedure pselect
[2019-10-13 22:56:45,579 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major
[2019-10-13 22:56:45,579 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor
[2019-10-13 22:56:45,580 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev
[2019-10-13 22:56:45,580 INFO L130 BoogieDeclarations]: Found specification of procedure random
[2019-10-13 22:56:45,580 INFO L130 BoogieDeclarations]: Found specification of procedure srandom
[2019-10-13 22:56:45,580 INFO L130 BoogieDeclarations]: Found specification of procedure initstate
[2019-10-13 22:56:45,580 INFO L130 BoogieDeclarations]: Found specification of procedure setstate
[2019-10-13 22:56:45,580 INFO L130 BoogieDeclarations]: Found specification of procedure random_r
[2019-10-13 22:56:45,581 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r
[2019-10-13 22:56:45,581 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r
[2019-10-13 22:56:45,581 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r
[2019-10-13 22:56:45,581 INFO L130 BoogieDeclarations]: Found specification of procedure rand
[2019-10-13 22:56:45,581 INFO L130 BoogieDeclarations]: Found specification of procedure srand
[2019-10-13 22:56:45,582 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r
[2019-10-13 22:56:45,582 INFO L130 BoogieDeclarations]: Found specification of procedure drand48
[2019-10-13 22:56:45,582 INFO L130 BoogieDeclarations]: Found specification of procedure erand48
[2019-10-13 22:56:45,582 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48
[2019-10-13 22:56:45,582 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48
[2019-10-13 22:56:45,582 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48
[2019-10-13 22:56:45,583 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48
[2019-10-13 22:56:45,583 INFO L130 BoogieDeclarations]: Found specification of procedure srand48
[2019-10-13 22:56:45,583 INFO L130 BoogieDeclarations]: Found specification of procedure seed48
[2019-10-13 22:56:45,583 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48
[2019-10-13 22:56:45,583 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r
[2019-10-13 22:56:45,583 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r
[2019-10-13 22:56:45,583 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r
[2019-10-13 22:56:45,584 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r
[2019-10-13 22:56:45,584 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r
[2019-10-13 22:56:45,584 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r
[2019-10-13 22:56:45,584 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r
[2019-10-13 22:56:45,584 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r
[2019-10-13 22:56:45,584 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r
[2019-10-13 22:56:45,584 INFO L130 BoogieDeclarations]: Found specification of procedure malloc
[2019-10-13 22:56:45,585 INFO L130 BoogieDeclarations]: Found specification of procedure calloc
[2019-10-13 22:56:45,585 INFO L130 BoogieDeclarations]: Found specification of procedure realloc
[2019-10-13 22:56:45,585 INFO L130 BoogieDeclarations]: Found specification of procedure free
[2019-10-13 22:56:45,585 INFO L130 BoogieDeclarations]: Found specification of procedure cfree
[2019-10-13 22:56:45,585 INFO L130 BoogieDeclarations]: Found specification of procedure alloca
[2019-10-13 22:56:45,585 INFO L130 BoogieDeclarations]: Found specification of procedure valloc
[2019-10-13 22:56:45,585 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign
[2019-10-13 22:56:45,586 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc
[2019-10-13 22:56:45,586 INFO L130 BoogieDeclarations]: Found specification of procedure abort
[2019-10-13 22:56:45,586 INFO L130 BoogieDeclarations]: Found specification of procedure atexit
[2019-10-13 22:56:45,586 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit
[2019-10-13 22:56:45,586 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit
[2019-10-13 22:56:45,586 INFO L130 BoogieDeclarations]: Found specification of procedure exit
[2019-10-13 22:56:45,587 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit
[2019-10-13 22:56:45,587 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit
[2019-10-13 22:56:45,587 INFO L130 BoogieDeclarations]: Found specification of procedure getenv
[2019-10-13 22:56:45,587 INFO L130 BoogieDeclarations]: Found specification of procedure putenv
[2019-10-13 22:56:45,587 INFO L130 BoogieDeclarations]: Found specification of procedure setenv
[2019-10-13 22:56:45,587 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv
[2019-10-13 22:56:45,588 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv
[2019-10-13 22:56:45,588 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp
[2019-10-13 22:56:45,588 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp
[2019-10-13 22:56:45,588 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps
[2019-10-13 22:56:45,588 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp
[2019-10-13 22:56:45,588 INFO L130 BoogieDeclarations]: Found specification of procedure system
[2019-10-13 22:56:45,589 INFO L130 BoogieDeclarations]: Found specification of procedure realpath
[2019-10-13 22:56:45,589 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch
[2019-10-13 22:56:45,589 INFO L130 BoogieDeclarations]: Found specification of procedure qsort
[2019-10-13 22:56:45,589 INFO L130 BoogieDeclarations]: Found specification of procedure abs
[2019-10-13 22:56:45,589 INFO L130 BoogieDeclarations]: Found specification of procedure labs
[2019-10-13 22:56:45,589 INFO L130 BoogieDeclarations]: Found specification of procedure llabs
[2019-10-13 22:56:45,590 INFO L130 BoogieDeclarations]: Found specification of procedure div
[2019-10-13 22:56:45,590 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv
[2019-10-13 22:56:45,590 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv
[2019-10-13 22:56:45,590 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt
[2019-10-13 22:56:45,590 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt
[2019-10-13 22:56:45,590 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt
[2019-10-13 22:56:45,590 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt
[2019-10-13 22:56:45,591 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt
[2019-10-13 22:56:45,591 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt
[2019-10-13 22:56:45,591 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r
[2019-10-13 22:56:45,591 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r
[2019-10-13 22:56:45,591 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r
[2019-10-13 22:56:45,591 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r
[2019-10-13 22:56:45,591 INFO L130 BoogieDeclarations]: Found specification of procedure mblen
[2019-10-13 22:56:45,592 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc
[2019-10-13 22:56:45,592 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb
[2019-10-13 22:56:45,592 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs
[2019-10-13 22:56:45,592 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs
[2019-10-13 22:56:45,592 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch
[2019-10-13 22:56:45,592 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt
[2019-10-13 22:56:45,592 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg
[2019-10-13 22:56:45,593 INFO L130 BoogieDeclarations]: Found specification of procedure myexit
[2019-10-13 22:56:45,593 INFO L130 BoogieDeclarations]: Found specification of procedure node_create
[2019-10-13 22:56:45,593 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap
[2019-10-13 22:56:45,593 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$
[2019-10-13 22:56:45,593 INFO L130 BoogieDeclarations]: Found specification of procedure write~int
[2019-10-13 22:56:45,593 INFO L130 BoogieDeclarations]: Found specification of procedure sll_circular_create
[2019-10-13 22:56:45,594 INFO L130 BoogieDeclarations]: Found specification of procedure sll_circular_destroy
[2019-10-13 22:56:45,594 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$
[2019-10-13 22:56:45,594 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2019-10-13 22:56:45,594 INFO L130 BoogieDeclarations]: Found specification of procedure sll_circular_append
[2019-10-13 22:56:45,594 INFO L130 BoogieDeclarations]: Found specification of procedure main
[2019-10-13 22:56:45,594 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2019-10-13 22:56:45,594 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$
[2019-10-13 22:56:45,595 INFO L130 BoogieDeclarations]: Found specification of procedure read~int
[2019-10-13 22:56:45,595 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init
[2019-10-13 22:56:45,595 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2019-10-13 22:56:45,994 INFO L685 $ProcedureCfgBuilder]: dead code at ProgramPoint myexitFINAL: assume true;
[2019-10-13 22:56:46,268 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2019-10-13 22:56:46,269 INFO L284 CfgBuilder]: Removed 5 assume(true) statements.
[2019-10-13 22:56:46,270 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 10:56:46 BoogieIcfgContainer
[2019-10-13 22:56:46,270 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2019-10-13 22:56:46,271 INFO L113 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2019-10-13 22:56:46,272 INFO L271 PluginConnector]: Initializing TraceAbstraction...
[2019-10-13 22:56:46,275 INFO L275 PluginConnector]: TraceAbstraction initialized
[2019-10-13 22:56:46,275 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 10:56:44" (1/3) ...
[2019-10-13 22:56:46,276 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@96af806 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 10:56:46, skipping insertion in model container
[2019-10-13 22:56:46,276 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:56:45" (2/3) ...
[2019-10-13 22:56:46,276 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@96af806 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 10:56:46, skipping insertion in model container
[2019-10-13 22:56:46,277 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 10:56:46" (3/3) ...
[2019-10-13 22:56:46,278 INFO L109 eAbstractionObserver]: Analyzing ICFG sll2c_append_unequal.i
[2019-10-13 22:56:46,288 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2019-10-13 22:56:46,297 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations.
[2019-10-13 22:56:46,308 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2019-10-13 22:56:46,339 INFO L373 AbstractCegarLoop]: Interprodecural is true
[2019-10-13 22:56:46,340 INFO L374 AbstractCegarLoop]: Hoare is true
[2019-10-13 22:56:46,340 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP
[2019-10-13 22:56:46,340 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE
[2019-10-13 22:56:46,340 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION
[2019-10-13 22:56:46,341 INFO L378 AbstractCegarLoop]: Difference is false
[2019-10-13 22:56:46,341 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA
[2019-10-13 22:56:46,341 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce========
[2019-10-13 22:56:46,365 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states.
[2019-10-13 22:56:46,373 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33
[2019-10-13 22:56:46,374 INFO L372 BasicCegarLoop]: Found error trace
[2019-10-13 22:56:46,375 INFO L380 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2019-10-13 22:56:46,378 INFO L410 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2019-10-13 22:56:46,384 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2019-10-13 22:56:46,384 INFO L82 PathProgramCache]: Analyzing trace with hash 1785745006, now seen corresponding path program 1 times
[2019-10-13 22:56:46,392 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN
[2019-10-13 22:56:46,393 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [26223056]
[2019-10-13 22:56:46,406 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY
[2019-10-13 22:56:46,406 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY
[2019-10-13 22:56:46,406 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2019-10-13 22:56:46,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-10-13 22:56:46,627 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked.
[2019-10-13 22:56:46,628 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [26223056]
[2019-10-13 22:56:46,629 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2019-10-13 22:56:46,629 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2019-10-13 22:56:46,629 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [832478702]
[2019-10-13 22:56:46,634 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states
[2019-10-13 22:56:46,634 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN
[2019-10-13 22:56:46,647 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2019-10-13 22:56:46,648 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2019-10-13 22:56:46,650 INFO L87 Difference]: Start difference. First operand 53 states. Second operand 2 states.
[2019-10-13 22:56:46,678 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2019-10-13 22:56:46,678 INFO L93 Difference]: Finished difference Result 78 states and 101 transitions.
[2019-10-13 22:56:46,678 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states.
[2019-10-13 22:56:46,680 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 32
[2019-10-13 22:56:46,680 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2019-10-13 22:56:46,689 INFO L225 Difference]: With dead ends: 78
[2019-10-13 22:56:46,689 INFO L226 Difference]: Without dead ends: 39
[2019-10-13 22:56:46,692 INFO L600 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
[2019-10-13 22:56:46,710 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states.
[2019-10-13 22:56:46,731 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39.
[2019-10-13 22:56:46,733 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states.
[2019-10-13 22:56:46,734 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 47 transitions.
[2019-10-13 22:56:46,736 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 47 transitions. Word has length 32
[2019-10-13 22:56:46,738 INFO L84 Accepts]: Finished accepts. word is rejected.
[2019-10-13 22:56:46,738 INFO L462 AbstractCegarLoop]: Abstraction has 39 states and 47 transitions.
[2019-10-13 22:56:46,738 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states.
[2019-10-13 22:56:46,738 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 47 transitions.
[2019-10-13 22:56:46,740 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34
[2019-10-13 22:56:46,740 INFO L372 BasicCegarLoop]: Found error trace
[2019-10-13 22:56:46,741 INFO L380 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2019-10-13 22:56:46,741 INFO L410 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2019-10-13 22:56:46,741 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2019-10-13 22:56:46,742 INFO L82 PathProgramCache]: Analyzing trace with hash -483186204, now seen corresponding path program 1 times
[2019-10-13 22:56:46,742 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN
[2019-10-13 22:56:46,742 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1542102476]
[2019-10-13 22:56:46,743 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY
[2019-10-13 22:56:46,743 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY
[2019-10-13 22:56:46,743 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2019-10-13 22:56:46,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-10-13 22:56:46,905 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked.
[2019-10-13 22:56:46,905 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1542102476]
[2019-10-13 22:56:46,906 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2019-10-13 22:56:46,906 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2019-10-13 22:56:46,907 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [595667109]
[2019-10-13 22:56:46,909 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states
[2019-10-13 22:56:46,910 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN
[2019-10-13 22:56:46,910 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2019-10-13 22:56:46,911 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2019-10-13 22:56:46,912 INFO L87 Difference]: Start difference. First operand 39 states and 47 transitions. Second operand 5 states.
[2019-10-13 22:56:46,975 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2019-10-13 22:56:46,975 INFO L93 Difference]: Finished difference Result 69 states and 84 transitions.
[2019-10-13 22:56:46,976 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states.
[2019-10-13 22:56:46,977 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 33
[2019-10-13 22:56:46,977 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2019-10-13 22:56:46,980 INFO L225 Difference]: With dead ends: 69
[2019-10-13 22:56:46,980 INFO L226 Difference]: Without dead ends: 42
[2019-10-13 22:56:46,982 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30
[2019-10-13 22:56:46,983 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states.
[2019-10-13 22:56:46,997 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 40.
[2019-10-13 22:56:46,997 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40 states.
[2019-10-13 22:56:47,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 48 transitions.
[2019-10-13 22:56:47,001 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 48 transitions. Word has length 33
[2019-10-13 22:56:47,001 INFO L84 Accepts]: Finished accepts. word is rejected.
[2019-10-13 22:56:47,002 INFO L462 AbstractCegarLoop]: Abstraction has 40 states and 48 transitions.
[2019-10-13 22:56:47,002 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states.
[2019-10-13 22:56:47,002 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 48 transitions.
[2019-10-13 22:56:47,005 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41
[2019-10-13 22:56:47,005 INFO L372 BasicCegarLoop]: Found error trace
[2019-10-13 22:56:47,005 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2019-10-13 22:56:47,006 INFO L410 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2019-10-13 22:56:47,007 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2019-10-13 22:56:47,007 INFO L82 PathProgramCache]: Analyzing trace with hash -1583530476, now seen corresponding path program 1 times
[2019-10-13 22:56:47,007 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN
[2019-10-13 22:56:47,007 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1803957620]
[2019-10-13 22:56:47,007 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY
[2019-10-13 22:56:47,008 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY
[2019-10-13 22:56:47,008 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2019-10-13 22:56:47,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-10-13 22:56:47,512 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 9 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked.
[2019-10-13 22:56:47,512 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1803957620]
[2019-10-13 22:56:47,513 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [338196318]
[2019-10-13 22:56:47,513 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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
[2019-10-13 22:56:47,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-10-13 22:56:47,725 INFO L256 TraceCheckSpWp]: Trace formula consists of 283 conjuncts, 45 conjunts are in the unsatisfiable core
[2019-10-13 22:56:47,736 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2019-10-13 22:56:47,942 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 4
[2019-10-13 22:56:47,943 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts.
[2019-10-13 22:56:47,952 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2019-10-13 22:56:47,953 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts.
[2019-10-13 22:56:47,953 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:15, output treesize:3
[2019-10-13 22:56:49,077 WARN L191 SmtUtils]: Spent 1.04 s on a formula simplification that was a NOOP. DAG size: 20
[2019-10-13 22:56:50,055 WARN L191 SmtUtils]: Spent 913.00 ms on a formula simplification that was a NOOP. DAG size: 26
[2019-10-13 22:56:50,073 INFO L496 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts.
[2019-10-13 22:56:50,082 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2019-10-13 22:56:50,085 INFO L496 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 3 dim-0 vars, and 1 xjuncts.
[2019-10-13 22:56:50,086 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:35, output treesize:26
[2019-10-13 22:56:57,215 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 9 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked.
[2019-10-13 22:56:57,216 INFO L321 TraceCheckSpWp]: Computing backward predicates...
[2019-10-13 22:56:57,445 INFO L496 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts.
[2019-10-13 22:56:57,452 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2019-10-13 22:56:57,454 INFO L496 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 3 dim-0 vars, and 1 xjuncts.
[2019-10-13 22:56:57,454 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:37, output treesize:27
[2019-10-13 22:57:00,159 INFO L496 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts.
[2019-10-13 22:57:00,178 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2019-10-13 22:57:00,182 INFO L496 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 3 dim-0 vars, and 1 xjuncts.
[2019-10-13 22:57:00,182 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:49, output treesize:39
[2019-10-13 22:57:00,252 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms
[2019-10-13 22:57:00,282 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3
[2019-10-13 22:57:00,283 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts.
[2019-10-13 22:57:00,321 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2019-10-13 22:57:00,524 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2019-10-13 22:57:00,525 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception:
java.lang.AssertionError: java.lang.UnsupportedOperationException: alternation not yet supported: (forall ((v_sll_circular_append_~head.offset_BEFORE_CALL_2 Int) (v_sll_circular_append_~head.base_BEFORE_CALL_2 Int)) (exists ((v_node_create_~temp~0.offset_15 Int) (v_DerPreprocessor_3 Int) (v_node_create_~temp~0.base_13 Int)) (or (and (not (< v_node_create_~temp~0.base_13 (+ |#StackHeapBarrier| 1))) (= 0 (select (select (store |old(#memory_$Pointer$.base)| v_node_create_~temp~0.base_13 (store (store (select |old(#memory_$Pointer$.base)| v_node_create_~temp~0.base_13) v_node_create_~temp~0.offset_15 0) (+ v_node_create_~temp~0.offset_15 4) v_DerPreprocessor_3)) v_sll_circular_append_~head.base_BEFORE_CALL_2) v_sll_circular_append_~head.offset_BEFORE_CALL_2))) (not (= 0 (select (select |#memory_$Pointer$.base| v_sll_circular_append_~head.base_BEFORE_CALL_2) v_sll_circular_append_~head.offset_BEFORE_CALL_2))))))
at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.tryExecuteInterpolantGenerator(TraceAbstractionRefinementEngine.java:307)
at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.generateProof(TraceAbstractionRefinementEngine.java:184)
at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.executeStrategy(TraceAbstractionRefinementEngine.java:174)
at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.<init>(TraceAbstractionRefinementEngine.java:85)
at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.RefinementEngineFactory.runRefinementEngine(RefinementEngineFactory.java:124)
at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:431)
at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:419)
at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:368)
at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterate(TraceAbstractionStarter.java:332)
at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:170)
at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.<init>(TraceAbstractionStarter.java:122)
at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:120)
at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168)
at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151)
at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128)
at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232)
at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226)
at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142)
at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104)
at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:316)
at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145)
at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55)
Caused by: java.lang.UnsupportedOperationException: alternation not yet supported: (forall ((v_sll_circular_append_~head.offset_BEFORE_CALL_2 Int) (v_sll_circular_append_~head.base_BEFORE_CALL_2 Int)) (exists ((v_node_create_~temp~0.offset_15 Int) (v_DerPreprocessor_3 Int) (v_node_create_~temp~0.base_13 Int)) (or (and (not (< v_node_create_~temp~0.base_13 (+ |#StackHeapBarrier| 1))) (= 0 (select (select (store |old(#memory_$Pointer$.base)| v_node_create_~temp~0.base_13 (store (store (select |old(#memory_$Pointer$.base)| v_node_create_~temp~0.base_13) v_node_create_~temp~0.offset_15 0) (+ v_node_create_~temp~0.offset_15 4) v_DerPreprocessor_3)) v_sll_circular_append_~head.base_BEFORE_CALL_2) v_sll_circular_append_~head.offset_BEFORE_CALL_2))) (not (= 0 (select (select |#memory_$Pointer$.base| v_sll_circular_append_~head.base_BEFORE_CALL_2) v_sll_circular_append_~head.offset_BEFORE_CALL_2))))))
at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.ElimStorePlain.applyNonSddEliminations(ElimStorePlain.java:667)
at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.ElimStorePlain.doElimAllRec(ElimStorePlain.java:493)
at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.ElimStorePlain.startRecursiveElimination(ElimStorePlain.java:216)
at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.PartialQuantifierElimination.elim(PartialQuantifierElimination.java:306)
at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.PartialQuantifierElimination.tryToEliminate(PartialQuantifierElimination.java:102)
at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.IterativePredicateTransformer$QuantifierEliminationPostprocessor.postprocess(IterativePredicateTransformer.java:245)
at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.IterativePredicateTransformer.applyPostprocessors(IterativePredicateTransformer.java:439)
at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.IterativePredicateTransformer.computeBackwardSequence(IterativePredicateTransformer.java:418)
at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.IterativePredicateTransformer.computeWeakestPreconditionSequence(IterativePredicateTransformer.java:290)
at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.TraceCheckSpWp.computeInterpolantsUsingUnsatCore(TraceCheckSpWp.java:335)
at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.TraceCheckSpWp.computeInterpolants(TraceCheckSpWp.java:175)
at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.TraceCheckSpWp.<init>(TraceCheckSpWp.java:162)
at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:108)
at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:1)
at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101)
at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:77)
at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.tryExecuteInterpolantGenerator(TraceAbstractionRefinementEngine.java:299)
... 21 more
[2019-10-13 22:57:00,532 INFO L168 Benchmark]: Toolchain (without parser) took 15944.90 ms. Allocated memory was 149.4 MB in the beginning and 248.0 MB in the end (delta: 98.6 MB). Free memory was 106.0 MB in the beginning and 210.4 MB in the end (delta: -104.4 MB). Peak memory consumption was 107.5 MB. Max. memory is 7.1 GB.
[2019-10-13 22:57:00,532 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 149.4 MB. Free memory was 125.7 MB in the beginning and 125.5 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB.
[2019-10-13 22:57:00,533 INFO L168 Benchmark]: CACSL2BoogieTranslator took 819.51 ms. Allocated memory was 149.4 MB in the beginning and 207.1 MB in the end (delta: 57.7 MB). Free memory was 105.8 MB in the beginning and 169.9 MB in the end (delta: -64.1 MB). Peak memory consumption was 19.8 MB. Max. memory is 7.1 GB.
[2019-10-13 22:57:00,534 INFO L168 Benchmark]: Boogie Preprocessor took 100.68 ms. Allocated memory is still 207.1 MB. Free memory was 169.9 MB in the beginning and 166.2 MB in the end (delta: 3.7 MB). Peak memory consumption was 3.7 MB. Max. memory is 7.1 GB.
[2019-10-13 22:57:00,535 INFO L168 Benchmark]: RCFGBuilder took 762.01 ms. Allocated memory is still 207.1 MB. Free memory was 166.2 MB in the beginning and 109.5 MB in the end (delta: 56.7 MB). Peak memory consumption was 56.7 MB. Max. memory is 7.1 GB.
[2019-10-13 22:57:00,536 INFO L168 Benchmark]: TraceAbstraction took 14258.37 ms. Allocated memory was 207.1 MB in the beginning and 248.0 MB in the end (delta: 40.9 MB). Free memory was 108.9 MB in the beginning and 210.4 MB in the end (delta: -101.5 MB). Peak memory consumption was 52.7 MB. Max. memory is 7.1 GB.
[2019-10-13 22:57:00,540 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] #######################
--- Results ---
* Results from de.uni_freiburg.informatik.ultimate.core:
- StatisticsResult: Toolchain Benchmarks
Benchmark results are:
* CDTParser took 0.23 ms. Allocated memory is still 149.4 MB. Free memory was 125.7 MB in the beginning and 125.5 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB.
* CACSL2BoogieTranslator took 819.51 ms. Allocated memory was 149.4 MB in the beginning and 207.1 MB in the end (delta: 57.7 MB). Free memory was 105.8 MB in the beginning and 169.9 MB in the end (delta: -64.1 MB). Peak memory consumption was 19.8 MB. Max. memory is 7.1 GB.
* Boogie Preprocessor took 100.68 ms. Allocated memory is still 207.1 MB. Free memory was 169.9 MB in the beginning and 166.2 MB in the end (delta: 3.7 MB). Peak memory consumption was 3.7 MB. Max. memory is 7.1 GB.
* RCFGBuilder took 762.01 ms. Allocated memory is still 207.1 MB. Free memory was 166.2 MB in the beginning and 109.5 MB in the end (delta: 56.7 MB). Peak memory consumption was 56.7 MB. Max. memory is 7.1 GB.
* TraceAbstraction took 14258.37 ms. Allocated memory was 207.1 MB in the beginning and 248.0 MB in the end (delta: 40.9 MB). Free memory was 108.9 MB in the beginning and 210.4 MB in the end (delta: -101.5 MB). Peak memory consumption was 52.7 MB. Max. memory is 7.1 GB.
* Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
- ExceptionOrErrorResult: AssertionError: java.lang.UnsupportedOperationException: alternation not yet supported: (forall ((v_sll_circular_append_~head.offset_BEFORE_CALL_2 Int) (v_sll_circular_append_~head.base_BEFORE_CALL_2 Int)) (exists ((v_node_create_~temp~0.offset_15 Int) (v_DerPreprocessor_3 Int) (v_node_create_~temp~0.base_13 Int)) (or (and (not (< v_node_create_~temp~0.base_13 (+ |#StackHeapBarrier| 1))) (= 0 (select (select (store |old(#memory_$Pointer$.base)| v_node_create_~temp~0.base_13 (store (store (select |old(#memory_$Pointer$.base)| v_node_create_~temp~0.base_13) v_node_create_~temp~0.offset_15 0) (+ v_node_create_~temp~0.offset_15 4) v_DerPreprocessor_3)) v_sll_circular_append_~head.base_BEFORE_CALL_2) v_sll_circular_append_~head.offset_BEFORE_CALL_2))) (not (= 0 (select (select |#memory_$Pointer$.base| v_sll_circular_append_~head.base_BEFORE_CALL_2) v_sll_circular_append_~head.offset_BEFORE_CALL_2))))))
de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: java.lang.UnsupportedOperationException: alternation not yet supported: (forall ((v_sll_circular_append_~head.offset_BEFORE_CALL_2 Int) (v_sll_circular_append_~head.base_BEFORE_CALL_2 Int)) (exists ((v_node_create_~temp~0.offset_15 Int) (v_DerPreprocessor_3 Int) (v_node_create_~temp~0.base_13 Int)) (or (and (not (< v_node_create_~temp~0.base_13 (+ |#StackHeapBarrier| 1))) (= 0 (select (select (store |old(#memory_$Pointer$.base)| v_node_create_~temp~0.base_13 (store (store (select |old(#memory_$Pointer$.base)| v_node_create_~temp~0.base_13) v_node_create_~temp~0.offset_15 0) (+ v_node_create_~temp~0.offset_15 4) v_DerPreprocessor_3)) v_sll_circular_append_~head.base_BEFORE_CALL_2) v_sll_circular_append_~head.offset_BEFORE_CALL_2))) (not (= 0 (select (select |#memory_$Pointer$.base| v_sll_circular_append_~head.base_BEFORE_CALL_2) v_sll_circular_append_~head.offset_BEFORE_CALL_2)))))): de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.tryExecuteInterpolantGenerator(TraceAbstractionRefinementEngine.java:307)
RESULT: Ultimate could not prove your program: Toolchain returned no result.
Received shutdown request...