/usr/bin/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 --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=SHALLOWEST --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/forester-heap/sll-optional-2.i
--------------------------------------------------------------------------------
This is Ultimate 0.1.25-c90d42b
[2020-09-24 23:52:10,978 INFO L177 SettingsManager]: Resetting all preferences to default values...
[2020-09-24 23:52:10,982 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values
[2020-09-24 23:52:11,009 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2020-09-24 23:52:11,010 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2020-09-24 23:52:11,011 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2020-09-24 23:52:11,013 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2020-09-24 23:52:11,015 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values
[2020-09-24 23:52:11,017 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values
[2020-09-24 23:52:11,018 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values
[2020-09-24 23:52:11,019 INFO L181 SettingsManager]: Resetting Sifa preferences to default values
[2020-09-24 23:52:11,020 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2020-09-24 23:52:11,021 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values
[2020-09-24 23:52:11,022 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values
[2020-09-24 23:52:11,023 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2020-09-24 23:52:11,025 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values
[2020-09-24 23:52:11,026 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2020-09-24 23:52:11,027 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2020-09-24 23:52:11,029 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2020-09-24 23:52:11,031 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values
[2020-09-24 23:52:11,034 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2020-09-24 23:52:11,038 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values
[2020-09-24 23:52:11,042 INFO L181 SettingsManager]: Resetting Referee preferences to default values
[2020-09-24 23:52:11,043 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values
[2020-09-24 23:52:11,048 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2020-09-24 23:52:11,049 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2020-09-24 23:52:11,049 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values
[2020-09-24 23:52:11,053 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values
[2020-09-24 23:52:11,054 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values
[2020-09-24 23:52:11,058 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring...
[2020-09-24 23:52:11,058 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values
[2020-09-24 23:52:11,059 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2020-09-24 23:52:11,060 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values
[2020-09-24 23:52:11,061 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values
[2020-09-24 23:52:11,062 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2020-09-24 23:52:11,062 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values
[2020-09-24 23:52:11,065 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2020-09-24 23:52:11,065 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring...
[2020-09-24 23:52:11,065 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values
[2020-09-24 23:52:11,066 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values
[2020-09-24 23:52:11,068 INFO L188 SettingsManager]: Finished resetting all preferences to default values...
[2020-09-24 23:52:11,069 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf
[2020-09-24 23:52:11,116 INFO L113 SettingsManager]: Loading preferences was successful
[2020-09-24 23:52:11,116 INFO L115 SettingsManager]: Preferences different from defaults after loading the file:
[2020-09-24 23:52:11,118 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2020-09-24 23:52:11,119 INFO L138 SettingsManager]: * Create parallel compositions if possible=false
[2020-09-24 23:52:11,119 INFO L138 SettingsManager]: * Use SBE=true
[2020-09-24 23:52:11,119 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2020-09-24 23:52:11,120 INFO L138 SettingsManager]: * sizeof long=4
[2020-09-24 23:52:11,120 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true
[2020-09-24 23:52:11,120 INFO L138 SettingsManager]: * sizeof POINTER=4
[2020-09-24 23:52:11,120 INFO L138 SettingsManager]: * Check division by zero=IGNORE
[2020-09-24 23:52:11,121 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2020-09-24 23:52:11,121 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2020-09-24 23:52:11,122 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2020-09-24 23:52:11,122 INFO L138 SettingsManager]: * sizeof long double=12
[2020-09-24 23:52:11,123 INFO L138 SettingsManager]: * Check if freed pointer was valid=false
[2020-09-24 23:52:11,123 INFO L138 SettingsManager]: * Use constant arrays=true
[2020-09-24 23:52:11,123 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2020-09-24 23:52:11,123 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2020-09-24 23:52:11,123 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements
[2020-09-24 23:52:11,124 INFO L138 SettingsManager]: * To the following directory=./dump/
[2020-09-24 23:52:11,124 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode
[2020-09-24 23:52:11,124 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2020-09-24 23:52:11,125 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2020-09-24 23:52:11,125 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2020-09-24 23:52:11,125 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2020-09-24 23:52:11,125 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL
[2020-09-24 23:52:11,125 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2020-09-24 23:52:11,126 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2020-09-24 23:52:11,126 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE
[2020-09-24 23:52:11,126 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SHALLOWEST;log-additional-information=true;
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SHALLOWEST;log-additional-information=true;
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SHALLOWEST;log-additional-information=true;
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SHALLOWEST;log-additional-information=true;
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SHALLOWEST;log-additional-information=true;
[2020-09-24 23:52:11,631 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2020-09-24 23:52:11,655 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2020-09-24 23:52:11,660 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2020-09-24 23:52:11,662 INFO L271 PluginConnector]: Initializing CDTParser...
[2020-09-24 23:52:11,662 INFO L275 PluginConnector]: CDTParser initialized
[2020-09-24 23:52:11,663 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/forester-heap/sll-optional-2.i
[2020-09-24 23:52:11,735 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/2a9d8f2e6/6a358540fbb44a11aa2402e9e7bb1a3f/FLAGb35b3694f
[2020-09-24 23:52:12,355 INFO L306 CDTParser]: Found 1 translation units.
[2020-09-24 23:52:12,356 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/forester-heap/sll-optional-2.i
[2020-09-24 23:52:12,372 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/2a9d8f2e6/6a358540fbb44a11aa2402e9e7bb1a3f/FLAGb35b3694f
[2020-09-24 23:52:12,608 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/2a9d8f2e6/6a358540fbb44a11aa2402e9e7bb1a3f
[2020-09-24 23:52:12,621 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2020-09-24 23:52:12,627 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements.
[2020-09-24 23:52:12,628 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2020-09-24 23:52:12,629 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2020-09-24 23:52:12,633 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized
[2020-09-24 23:52:12,635 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 11:52:12" (1/1) ...
[2020-09-24 23:52:12,640 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@538d8bff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:52:12, skipping insertion in model container
[2020-09-24 23:52:12,640 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 11:52:12" (1/1) ...
[2020-09-24 23:52:12,649 INFO L145 MainTranslator]: Starting translation in SV-COMP mode
[2020-09-24 23:52:12,698 INFO L178 MainTranslator]: Built tables and reachable declarations
[2020-09-24 23:52:13,218 INFO L206 PostProcessor]: Analyzing one entry point: main
[2020-09-24 23:52:13,231 INFO L203 MainTranslator]: Completed pre-run
[2020-09-24 23:52:13,283 INFO L206 PostProcessor]: Analyzing one entry point: main
[2020-09-24 23:52:13,339 INFO L208 MainTranslator]: Completed translation
[2020-09-24 23:52:13,340 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:52:13 WrapperNode
[2020-09-24 23:52:13,340 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2020-09-24 23:52:13,341 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2020-09-24 23:52:13,341 INFO L271 PluginConnector]: Initializing Boogie Preprocessor...
[2020-09-24 23:52:13,341 INFO L275 PluginConnector]: Boogie Preprocessor initialized
[2020-09-24 23:52:13,359 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:52:13" (1/1) ...
[2020-09-24 23:52:13,359 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:52:13" (1/1) ...
[2020-09-24 23:52:13,378 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:52:13" (1/1) ...
[2020-09-24 23:52:13,379 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:52:13" (1/1) ...
[2020-09-24 23:52:13,402 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:52:13" (1/1) ...
[2020-09-24 23:52:13,411 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:52:13" (1/1) ...
[2020-09-24 23:52:13,415 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:52:13" (1/1) ...
[2020-09-24 23:52:13,421 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2020-09-24 23:52:13,422 INFO L113 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2020-09-24 23:52:13,422 INFO L271 PluginConnector]: Initializing RCFGBuilder...
[2020-09-24 23:52:13,422 INFO L275 PluginConnector]: RCFGBuilder initialized
[2020-09-24 23:52:13,424 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:52:13" (1/1) ...
No working directory specified, using /storage/repos/ultimate-2/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
[2020-09-24 23:52:13,502 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init
[2020-09-24 23:52:13,502 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2020-09-24 23:52:13,502 INFO L138 BoogieDeclarations]: Found implementation of procedure main
[2020-09-24 23:52:13,503 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max
[2020-09-24 23:52:13,503 INFO L130 BoogieDeclarations]: Found specification of procedure atof
[2020-09-24 23:52:13,503 INFO L130 BoogieDeclarations]: Found specification of procedure atoi
[2020-09-24 23:52:13,503 INFO L130 BoogieDeclarations]: Found specification of procedure atol
[2020-09-24 23:52:13,504 INFO L130 BoogieDeclarations]: Found specification of procedure atoll
[2020-09-24 23:52:13,505 INFO L130 BoogieDeclarations]: Found specification of procedure strtod
[2020-09-24 23:52:13,505 INFO L130 BoogieDeclarations]: Found specification of procedure strtof
[2020-09-24 23:52:13,505 INFO L130 BoogieDeclarations]: Found specification of procedure strtold
[2020-09-24 23:52:13,505 INFO L130 BoogieDeclarations]: Found specification of procedure strtol
[2020-09-24 23:52:13,506 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul
[2020-09-24 23:52:13,506 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq
[2020-09-24 23:52:13,506 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq
[2020-09-24 23:52:13,507 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll
[2020-09-24 23:52:13,507 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull
[2020-09-24 23:52:13,507 INFO L130 BoogieDeclarations]: Found specification of procedure l64a
[2020-09-24 23:52:13,507 INFO L130 BoogieDeclarations]: Found specification of procedure a64l
[2020-09-24 23:52:13,508 INFO L130 BoogieDeclarations]: Found specification of procedure select
[2020-09-24 23:52:13,509 INFO L130 BoogieDeclarations]: Found specification of procedure pselect
[2020-09-24 23:52:13,509 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major
[2020-09-24 23:52:13,509 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor
[2020-09-24 23:52:13,509 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev
[2020-09-24 23:52:13,511 INFO L130 BoogieDeclarations]: Found specification of procedure random
[2020-09-24 23:52:13,512 INFO L130 BoogieDeclarations]: Found specification of procedure srandom
[2020-09-24 23:52:13,512 INFO L130 BoogieDeclarations]: Found specification of procedure initstate
[2020-09-24 23:52:13,512 INFO L130 BoogieDeclarations]: Found specification of procedure setstate
[2020-09-24 23:52:13,512 INFO L130 BoogieDeclarations]: Found specification of procedure random_r
[2020-09-24 23:52:13,512 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r
[2020-09-24 23:52:13,513 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r
[2020-09-24 23:52:13,513 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r
[2020-09-24 23:52:13,513 INFO L130 BoogieDeclarations]: Found specification of procedure rand
[2020-09-24 23:52:13,513 INFO L130 BoogieDeclarations]: Found specification of procedure srand
[2020-09-24 23:52:13,513 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r
[2020-09-24 23:52:13,513 INFO L130 BoogieDeclarations]: Found specification of procedure drand48
[2020-09-24 23:52:13,514 INFO L130 BoogieDeclarations]: Found specification of procedure erand48
[2020-09-24 23:52:13,514 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48
[2020-09-24 23:52:13,514 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48
[2020-09-24 23:52:13,514 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48
[2020-09-24 23:52:13,514 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48
[2020-09-24 23:52:13,514 INFO L130 BoogieDeclarations]: Found specification of procedure srand48
[2020-09-24 23:52:13,514 INFO L130 BoogieDeclarations]: Found specification of procedure seed48
[2020-09-24 23:52:13,515 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48
[2020-09-24 23:52:13,515 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r
[2020-09-24 23:52:13,515 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r
[2020-09-24 23:52:13,515 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r
[2020-09-24 23:52:13,515 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r
[2020-09-24 23:52:13,515 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r
[2020-09-24 23:52:13,516 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r
[2020-09-24 23:52:13,516 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r
[2020-09-24 23:52:13,516 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r
[2020-09-24 23:52:13,516 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r
[2020-09-24 23:52:13,516 INFO L130 BoogieDeclarations]: Found specification of procedure malloc
[2020-09-24 23:52:13,516 INFO L130 BoogieDeclarations]: Found specification of procedure calloc
[2020-09-24 23:52:13,517 INFO L130 BoogieDeclarations]: Found specification of procedure realloc
[2020-09-24 23:52:13,517 INFO L130 BoogieDeclarations]: Found specification of procedure free
[2020-09-24 23:52:13,517 INFO L130 BoogieDeclarations]: Found specification of procedure cfree
[2020-09-24 23:52:13,517 INFO L130 BoogieDeclarations]: Found specification of procedure alloca
[2020-09-24 23:52:13,517 INFO L130 BoogieDeclarations]: Found specification of procedure valloc
[2020-09-24 23:52:13,518 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign
[2020-09-24 23:52:13,518 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc
[2020-09-24 23:52:13,518 INFO L130 BoogieDeclarations]: Found specification of procedure abort
[2020-09-24 23:52:13,518 INFO L130 BoogieDeclarations]: Found specification of procedure atexit
[2020-09-24 23:52:13,518 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit
[2020-09-24 23:52:13,518 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit
[2020-09-24 23:52:13,519 INFO L130 BoogieDeclarations]: Found specification of procedure exit
[2020-09-24 23:52:13,519 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit
[2020-09-24 23:52:13,519 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit
[2020-09-24 23:52:13,519 INFO L130 BoogieDeclarations]: Found specification of procedure getenv
[2020-09-24 23:52:13,519 INFO L130 BoogieDeclarations]: Found specification of procedure putenv
[2020-09-24 23:52:13,519 INFO L130 BoogieDeclarations]: Found specification of procedure setenv
[2020-09-24 23:52:13,520 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv
[2020-09-24 23:52:13,520 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv
[2020-09-24 23:52:13,520 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp
[2020-09-24 23:52:13,520 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp
[2020-09-24 23:52:13,520 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps
[2020-09-24 23:52:13,520 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp
[2020-09-24 23:52:13,521 INFO L130 BoogieDeclarations]: Found specification of procedure system
[2020-09-24 23:52:13,521 INFO L130 BoogieDeclarations]: Found specification of procedure realpath
[2020-09-24 23:52:13,521 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch
[2020-09-24 23:52:13,521 INFO L130 BoogieDeclarations]: Found specification of procedure qsort
[2020-09-24 23:52:13,521 INFO L130 BoogieDeclarations]: Found specification of procedure abs
[2020-09-24 23:52:13,521 INFO L130 BoogieDeclarations]: Found specification of procedure labs
[2020-09-24 23:52:13,522 INFO L130 BoogieDeclarations]: Found specification of procedure llabs
[2020-09-24 23:52:13,522 INFO L130 BoogieDeclarations]: Found specification of procedure div
[2020-09-24 23:52:13,522 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv
[2020-09-24 23:52:13,522 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv
[2020-09-24 23:52:13,522 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt
[2020-09-24 23:52:13,522 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt
[2020-09-24 23:52:13,523 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt
[2020-09-24 23:52:13,523 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt
[2020-09-24 23:52:13,523 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt
[2020-09-24 23:52:13,523 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt
[2020-09-24 23:52:13,523 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r
[2020-09-24 23:52:13,523 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r
[2020-09-24 23:52:13,524 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r
[2020-09-24 23:52:13,524 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r
[2020-09-24 23:52:13,524 INFO L130 BoogieDeclarations]: Found specification of procedure mblen
[2020-09-24 23:52:13,524 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc
[2020-09-24 23:52:13,524 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb
[2020-09-24 23:52:13,524 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs
[2020-09-24 23:52:13,524 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs
[2020-09-24 23:52:13,525 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch
[2020-09-24 23:52:13,525 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt
[2020-09-24 23:52:13,525 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg
[2020-09-24 23:52:13,525 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int
[2020-09-24 23:52:13,525 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error
[2020-09-24 23:52:13,525 INFO L130 BoogieDeclarations]: Found specification of procedure main
[2020-09-24 23:52:13,526 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap
[2020-09-24 23:52:13,526 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$
[2020-09-24 23:52:13,526 INFO L130 BoogieDeclarations]: Found specification of procedure write~int
[2020-09-24 23:52:13,526 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$
[2020-09-24 23:52:13,526 INFO L130 BoogieDeclarations]: Found specification of procedure read~int
[2020-09-24 23:52:13,526 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2020-09-24 23:52:13,526 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init
[2020-09-24 23:52:13,527 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2020-09-24 23:52:14,144 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2020-09-24 23:52:14,145 INFO L295 CfgBuilder]: Removed 5 assume(true) statements.
[2020-09-24 23:52:14,153 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 11:52:14 BoogieIcfgContainer
[2020-09-24 23:52:14,154 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2020-09-24 23:52:14,155 INFO L113 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2020-09-24 23:52:14,155 INFO L271 PluginConnector]: Initializing TraceAbstraction...
[2020-09-24 23:52:14,161 INFO L275 PluginConnector]: TraceAbstraction initialized
[2020-09-24 23:52:14,162 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 11:52:12" (1/3) ...
[2020-09-24 23:52:14,164 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4a00bbb0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 11:52:14, skipping insertion in model container
[2020-09-24 23:52:14,165 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:52:13" (2/3) ...
[2020-09-24 23:52:14,166 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4a00bbb0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 11:52:14, skipping insertion in model container
[2020-09-24 23:52:14,167 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 11:52:14" (3/3) ...
[2020-09-24 23:52:14,170 INFO L109 eAbstractionObserver]: Analyzing ICFG sll-optional-2.i
[2020-09-24 23:52:14,183 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION
[2020-09-24 23:52:14,194 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations.
[2020-09-24 23:52:14,217 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2020-09-24 23:52:14,244 INFO L375 AbstractCegarLoop]: Interprodecural is true
[2020-09-24 23:52:14,244 INFO L376 AbstractCegarLoop]: Hoare is true
[2020-09-24 23:52:14,244 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation
[2020-09-24 23:52:14,244 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE
[2020-09-24 23:52:14,245 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION
[2020-09-24 23:52:14,245 INFO L380 AbstractCegarLoop]: Difference is false
[2020-09-24 23:52:14,245 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA
[2020-09-24 23:52:14,245 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce========
[2020-09-24 23:52:14,268 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states.
[2020-09-24 23:52:14,277 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31
[2020-09-24 23:52:14,277 INFO L414 BasicCegarLoop]: Found error trace
[2020-09-24 23:52:14,279 INFO L422 BasicCegarLoop]: trace histogram [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]
[2020-09-24 23:52:14,279 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-24 23:52:14,290 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-09-24 23:52:14,290 INFO L82 PathProgramCache]: Analyzing trace with hash -1919098423, now seen corresponding path program 1 times
[2020-09-24 23:52:14,303 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-24 23:52:14,303 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1330699206]
[2020-09-24 23:52:14,304 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-24 23:52:14,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 23:52:14,506 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 23:52:14,662 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 23:52:14,662 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37
[2020-09-24 23:52:14,663 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 23:52:14,663 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 193
[2020-09-24 23:52:14,665 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST
[2020-09-24 23:52:14,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 23:52:14,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 26
[2020-09-24 23:52:14,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 23:52:14,667 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3
[2020-09-24 23:52:14,751 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-24 23:52:14,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 23:52:14,768 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 23:52:14,805 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 23:52:14,805 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 23:52:14,808 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 23:52:14,808 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 45
[2020-09-24 23:52:14,809 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST
[2020-09-24 23:52:14,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 23:52:14,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 23:52:14,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 23:52:14,813 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4
[2020-09-24 23:52:14,844 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-09-24 23:52:14,845 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1330699206]
[2020-09-24 23:52:14,848 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-09-24 23:52:14,848 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2020-09-24 23:52:14,850 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [580484624]
[2020-09-24 23:52:14,857 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states
[2020-09-24 23:52:14,857 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-24 23:52:14,877 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2020-09-24 23:52:14,878 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2020-09-24 23:52:14,881 INFO L87 Difference]: Start difference. First operand 96 states. Second operand 3 states.
[2020-09-24 23:52:15,196 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-24 23:52:15,196 INFO L93 Difference]: Finished difference Result 135 states and 157 transitions.
[2020-09-24 23:52:15,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2020-09-24 23:52:15,198 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 30
[2020-09-24 23:52:15,199 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-24 23:52:15,215 INFO L225 Difference]: With dead ends: 135
[2020-09-24 23:52:15,215 INFO L226 Difference]: Without dead ends: 77
[2020-09-24 23:52:15,220 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2020-09-24 23:52:15,243 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states.
[2020-09-24 23:52:15,272 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 77.
[2020-09-24 23:52:15,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 77 states.
[2020-09-24 23:52:15,276 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 83 transitions.
[2020-09-24 23:52:15,278 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 83 transitions. Word has length 30
[2020-09-24 23:52:15,278 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-09-24 23:52:15,279 INFO L479 AbstractCegarLoop]: Abstraction has 77 states and 83 transitions.
[2020-09-24 23:52:15,279 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states.
[2020-09-24 23:52:15,279 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 83 transitions.
[2020-09-24 23:52:15,280 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33
[2020-09-24 23:52:15,281 INFO L414 BasicCegarLoop]: Found error trace
[2020-09-24 23:52:15,281 INFO L422 BasicCegarLoop]: trace histogram [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, 1]
[2020-09-24 23:52:15,281 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2020-09-24 23:52:15,281 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-24 23:52:15,282 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-09-24 23:52:15,282 INFO L82 PathProgramCache]: Analyzing trace with hash -493967776, now seen corresponding path program 1 times
[2020-09-24 23:52:15,282 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-24 23:52:15,283 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [737020516]
[2020-09-24 23:52:15,283 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-24 23:52:15,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2020-09-24 23:52:15,318 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace
[2020-09-24 23:52:15,318 INFO L520 BasicCegarLoop]: Counterexample might be feasible
[2020-09-24 23:52:15,325 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2020-09-24 23:52:15,347 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.09 11:52:15 BoogieIcfgContainer
[2020-09-24 23:52:15,347 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2020-09-24 23:52:15,351 INFO L168 Benchmark]: Toolchain (without parser) took 2726.56 ms. Allocated memory was 136.8 MB in the beginning and 229.1 MB in the end (delta: 92.3 MB). Free memory was 98.8 MB in the beginning and 166.9 MB in the end (delta: -68.1 MB). Peak memory consumption was 24.2 MB. Max. memory is 7.1 GB.
[2020-09-24 23:52:15,352 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 136.8 MB. Free memory was 118.4 MB in the beginning and 118.1 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB.
[2020-09-24 23:52:15,353 INFO L168 Benchmark]: CACSL2BoogieTranslator took 712.37 ms. Allocated memory was 136.8 MB in the beginning and 200.8 MB in the end (delta: 64.0 MB). Free memory was 98.2 MB in the beginning and 167.1 MB in the end (delta: -69.0 MB). Peak memory consumption was 24.9 MB. Max. memory is 7.1 GB.
[2020-09-24 23:52:15,354 INFO L168 Benchmark]: Boogie Preprocessor took 80.55 ms. Allocated memory is still 200.8 MB. Free memory was 167.1 MB in the beginning and 164.3 MB in the end (delta: 2.8 MB). Peak memory consumption was 2.8 MB. Max. memory is 7.1 GB.
[2020-09-24 23:52:15,355 INFO L168 Benchmark]: RCFGBuilder took 731.92 ms. Allocated memory is still 200.8 MB. Free memory was 164.3 MB in the beginning and 113.2 MB in the end (delta: 51.1 MB). Peak memory consumption was 51.1 MB. Max. memory is 7.1 GB.
[2020-09-24 23:52:15,356 INFO L168 Benchmark]: TraceAbstraction took 1192.02 ms. Allocated memory was 200.8 MB in the beginning and 229.1 MB in the end (delta: 28.3 MB). Free memory was 112.5 MB in the beginning and 166.9 MB in the end (delta: -54.4 MB). There was no memory consumed. Max. memory is 7.1 GB.
[2020-09-24 23:52:15,360 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] #######################
--- Results ---
* Results from de.uni_freiburg.informatik.ultimate.core:
- StatisticsResult: Toolchain Benchmarks
Benchmark results are:
* CDTParser took 0.21 ms. Allocated memory is still 136.8 MB. Free memory was 118.4 MB in the beginning and 118.1 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB.
* CACSL2BoogieTranslator took 712.37 ms. Allocated memory was 136.8 MB in the beginning and 200.8 MB in the end (delta: 64.0 MB). Free memory was 98.2 MB in the beginning and 167.1 MB in the end (delta: -69.0 MB). Peak memory consumption was 24.9 MB. Max. memory is 7.1 GB.
* Boogie Preprocessor took 80.55 ms. Allocated memory is still 200.8 MB. Free memory was 167.1 MB in the beginning and 164.3 MB in the end (delta: 2.8 MB). Peak memory consumption was 2.8 MB. Max. memory is 7.1 GB.
* RCFGBuilder took 731.92 ms. Allocated memory is still 200.8 MB. Free memory was 164.3 MB in the beginning and 113.2 MB in the end (delta: 51.1 MB). Peak memory consumption was 51.1 MB. Max. memory is 7.1 GB.
* TraceAbstraction took 1192.02 ms. Allocated memory was 200.8 MB in the beginning and 229.1 MB in the end (delta: 28.3 MB). Free memory was 112.5 MB in the beginning and 166.9 MB in the end (delta: -54.4 MB). There was no memory consumed. Max. memory is 7.1 GB.
* Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
- CounterExampleResult [Line: 996]: a call of __VERIFIER_error() is reachable
a call of __VERIFIER_error() is reachable
We found a FailurePath:
[L985] SLL* head = malloc(sizeof(SLL));
[L986] head->next = ((void*)0)
[L987] COND FALSE !(__VERIFIER_nondet_int())
[L987] COND TRUE __VERIFIER_nondet_int()
[L987] head->data = 1
[L987] head->opt = head
[L988] SLL* x = head;
[L990] COND FALSE !(__VERIFIER_nondet_int())
[L993] x = head
[L994] COND TRUE x != ((void*)0)
[L996] EXPR x->data
[L996] EXPR x->data == 2 && x->opt == x
[L996] COND TRUE !(x->data == 2 && x->opt == x)
[L996] __VERIFIER_error()
- StatisticsResult: Ultimate Automizer benchmark data
CFG has 3 procedures, 96 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 1.0s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 103 SDtfs, 0 SDslu, 5 SDs, 0 SdLazy, 98 SolverSat, 1 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=96occurred 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, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 62 NumberOfCodeBlocks, 62 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 29 ConstructedInterpolants, 0 QuantifiedInterpolants, 1102 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available
RESULT: Ultimate proved your program to be incorrect!
Received shutdown request...