/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 --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=NARROWEST --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/ldv-regression/callfpointer.i
--------------------------------------------------------------------------------
This is Ultimate 0.1.25-177f698
[2020-08-21 21:22:55,106 INFO L177 SettingsManager]: Resetting all preferences to default values...
[2020-08-21 21:22:55,109 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values
[2020-08-21 21:22:55,151 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2020-08-21 21:22:55,152 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2020-08-21 21:22:55,162 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2020-08-21 21:22:55,165 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2020-08-21 21:22:55,168 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values
[2020-08-21 21:22:55,171 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values
[2020-08-21 21:22:55,175 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values
[2020-08-21 21:22:55,176 INFO L181 SettingsManager]: Resetting Sifa preferences to default values
[2020-08-21 21:22:55,177 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2020-08-21 21:22:55,178 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values
[2020-08-21 21:22:55,180 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values
[2020-08-21 21:22:55,183 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2020-08-21 21:22:55,184 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values
[2020-08-21 21:22:55,186 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2020-08-21 21:22:55,187 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2020-08-21 21:22:55,188 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2020-08-21 21:22:55,197 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values
[2020-08-21 21:22:55,199 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2020-08-21 21:22:55,200 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values
[2020-08-21 21:22:55,201 INFO L181 SettingsManager]: Resetting Referee preferences to default values
[2020-08-21 21:22:55,202 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values
[2020-08-21 21:22:55,215 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2020-08-21 21:22:55,215 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2020-08-21 21:22:55,216 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values
[2020-08-21 21:22:55,216 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values
[2020-08-21 21:22:55,224 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values
[2020-08-21 21:22:55,225 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring...
[2020-08-21 21:22:55,225 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values
[2020-08-21 21:22:55,226 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2020-08-21 21:22:55,228 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values
[2020-08-21 21:22:55,229 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values
[2020-08-21 21:22:55,230 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2020-08-21 21:22:55,230 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values
[2020-08-21 21:22:55,231 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2020-08-21 21:22:55,231 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring...
[2020-08-21 21:22:55,232 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values
[2020-08-21 21:22:55,235 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values
[2020-08-21 21:22:55,236 INFO L188 SettingsManager]: Finished resetting all preferences to default values...
[2020-08-21 21:22:55,237 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
[2020-08-21 21:22:55,276 INFO L113 SettingsManager]: Loading preferences was successful
[2020-08-21 21:22:55,276 INFO L115 SettingsManager]: Preferences different from defaults after loading the file:
[2020-08-21 21:22:55,277 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2020-08-21 21:22:55,278 INFO L138 SettingsManager]: * Create parallel compositions if possible=false
[2020-08-21 21:22:55,278 INFO L138 SettingsManager]: * Use SBE=true
[2020-08-21 21:22:55,278 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2020-08-21 21:22:55,279 INFO L138 SettingsManager]: * sizeof long=4
[2020-08-21 21:22:55,279 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true
[2020-08-21 21:22:55,279 INFO L138 SettingsManager]: * sizeof POINTER=4
[2020-08-21 21:22:55,279 INFO L138 SettingsManager]: * Check division by zero=IGNORE
[2020-08-21 21:22:55,280 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2020-08-21 21:22:55,280 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2020-08-21 21:22:55,280 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2020-08-21 21:22:55,281 INFO L138 SettingsManager]: * sizeof long double=12
[2020-08-21 21:22:55,281 INFO L138 SettingsManager]: * Check if freed pointer was valid=false
[2020-08-21 21:22:55,281 INFO L138 SettingsManager]: * Use constant arrays=true
[2020-08-21 21:22:55,281 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2020-08-21 21:22:55,282 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2020-08-21 21:22:55,282 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements
[2020-08-21 21:22:55,282 INFO L138 SettingsManager]: * To the following directory=./dump/
[2020-08-21 21:22:55,282 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode
[2020-08-21 21:22:55,283 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2020-08-21 21:22:55,283 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2020-08-21 21:22:55,283 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2020-08-21 21:22:55,283 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2020-08-21 21:22:55,283 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL
[2020-08-21 21:22:55,284 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2020-08-21 21:22:55,284 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2020-08-21 21:22:55,284 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE
[2020-08-21 21:22:55,284 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.traceabstraction: Use minimal unsat core enumeration -> true
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5000;interpolation-heuristic=NARROWEST;log-additional-information=true;
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5000;interpolation-heuristic=NARROWEST;log-additional-information=true;
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5000;interpolation-heuristic=NARROWEST;log-additional-information=true;
[2020-08-21 21:22:55,610 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2020-08-21 21:22:55,623 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2020-08-21 21:22:55,627 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2020-08-21 21:22:55,628 INFO L271 PluginConnector]: Initializing CDTParser...
[2020-08-21 21:22:55,628 INFO L275 PluginConnector]: CDTParser initialized
[2020-08-21 21:22:55,629 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-regression/callfpointer.i
[2020-08-21 21:22:55,692 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/efefafe24/da6c5930616f430b978c41c8258d4a3d/FLAGae201d2cb
[2020-08-21 21:22:56,132 INFO L306 CDTParser]: Found 1 translation units.
[2020-08-21 21:22:56,132 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/ldv-regression/callfpointer.i
[2020-08-21 21:22:56,139 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/efefafe24/da6c5930616f430b978c41c8258d4a3d/FLAGae201d2cb
[2020-08-21 21:22:56,517 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/efefafe24/da6c5930616f430b978c41c8258d4a3d
[2020-08-21 21:22:56,526 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2020-08-21 21:22:56,528 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements.
[2020-08-21 21:22:56,530 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2020-08-21 21:22:56,530 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2020-08-21 21:22:56,534 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized
[2020-08-21 21:22:56,535 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.08 09:22:56" (1/1) ...
[2020-08-21 21:22:56,538 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@446b24d5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 09:22:56, skipping insertion in model container
[2020-08-21 21:22:56,538 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.08 09:22:56" (1/1) ...
[2020-08-21 21:22:56,546 INFO L145 MainTranslator]: Starting translation in SV-COMP mode
[2020-08-21 21:22:56,563 INFO L178 MainTranslator]: Built tables and reachable declarations
[2020-08-21 21:22:56,709 INFO L206 PostProcessor]: Analyzing one entry point: main
[2020-08-21 21:22:56,714 INFO L203 MainTranslator]: Completed pre-run
[2020-08-21 21:22:56,727 INFO L206 PostProcessor]: Analyzing one entry point: main
[2020-08-21 21:22:56,741 INFO L208 MainTranslator]: Completed translation
[2020-08-21 21:22:56,741 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 09:22:56 WrapperNode
[2020-08-21 21:22:56,742 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2020-08-21 21:22:56,742 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2020-08-21 21:22:56,742 INFO L271 PluginConnector]: Initializing Boogie Preprocessor...
[2020-08-21 21:22:56,743 INFO L275 PluginConnector]: Boogie Preprocessor initialized
[2020-08-21 21:22:56,752 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 09:22:56" (1/1) ...
[2020-08-21 21:22:56,753 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 09:22:56" (1/1) ...
[2020-08-21 21:22:56,757 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 09:22:56" (1/1) ...
[2020-08-21 21:22:56,758 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 09:22:56" (1/1) ...
[2020-08-21 21:22:56,761 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 09:22:56" (1/1) ...
[2020-08-21 21:22:56,763 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 09:22:56" (1/1) ...
[2020-08-21 21:22:56,764 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 09:22:56" (1/1) ...
[2020-08-21 21:22:56,765 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2020-08-21 21:22:56,766 INFO L113 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2020-08-21 21:22:56,766 INFO L271 PluginConnector]: Initializing RCFGBuilder...
[2020-08-21 21:22:56,766 INFO L275 PluginConnector]: RCFGBuilder initialized
[2020-08-21 21:22:56,767 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 09:22:56" (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
[2020-08-21 21:22:56,910 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init
[2020-08-21 21:22:56,910 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2020-08-21 21:22:56,911 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~TO~VOID
[2020-08-21 21:22:56,911 INFO L138 BoogieDeclarations]: Found implementation of procedure f
[2020-08-21 21:22:56,911 INFO L138 BoogieDeclarations]: Found implementation of procedure h
[2020-08-21 21:22:56,911 INFO L138 BoogieDeclarations]: Found implementation of procedure main
[2020-08-21 21:22:56,912 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error
[2020-08-21 21:22:56,912 INFO L130 BoogieDeclarations]: Found specification of procedure f
[2020-08-21 21:22:56,912 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~TO~VOID
[2020-08-21 21:22:56,912 INFO L130 BoogieDeclarations]: Found specification of procedure h
[2020-08-21 21:22:56,912 INFO L130 BoogieDeclarations]: Found specification of procedure main
[2020-08-21 21:22:56,912 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init
[2020-08-21 21:22:56,913 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2020-08-21 21:22:57,061 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2020-08-21 21:22:57,062 INFO L295 CfgBuilder]: Removed 0 assume(true) statements.
[2020-08-21 21:22:57,065 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.08 09:22:57 BoogieIcfgContainer
[2020-08-21 21:22:57,066 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2020-08-21 21:22:57,067 INFO L113 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2020-08-21 21:22:57,067 INFO L271 PluginConnector]: Initializing TraceAbstraction...
[2020-08-21 21:22:57,071 INFO L275 PluginConnector]: TraceAbstraction initialized
[2020-08-21 21:22:57,071 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.08 09:22:56" (1/3) ...
[2020-08-21 21:22:57,072 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ddddfa9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.08 09:22:57, skipping insertion in model container
[2020-08-21 21:22:57,072 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 09:22:56" (2/3) ...
[2020-08-21 21:22:57,072 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ddddfa9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.08 09:22:57, skipping insertion in model container
[2020-08-21 21:22:57,073 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.08 09:22:57" (3/3) ...
[2020-08-21 21:22:57,074 INFO L109 eAbstractionObserver]: Analyzing ICFG callfpointer.i
[2020-08-21 21:22:57,087 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION
[2020-08-21 21:22:57,095 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations.
[2020-08-21 21:22:57,109 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2020-08-21 21:22:57,136 INFO L375 AbstractCegarLoop]: Interprodecural is true
[2020-08-21 21:22:57,136 INFO L376 AbstractCegarLoop]: Hoare is true
[2020-08-21 21:22:57,136 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation
[2020-08-21 21:22:57,136 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE
[2020-08-21 21:22:57,136 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION
[2020-08-21 21:22:57,137 INFO L380 AbstractCegarLoop]: Difference is false
[2020-08-21 21:22:57,137 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA
[2020-08-21 21:22:57,137 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce========
[2020-08-21 21:22:57,180 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states.
[2020-08-21 21:22:57,193 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13
[2020-08-21 21:22:57,197 INFO L414 BasicCegarLoop]: Found error trace
[2020-08-21 21:22:57,198 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-08-21 21:22:57,198 INFO L427 AbstractCegarLoop]: === Iteration 1 === [hErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-08-21 21:22:57,210 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-08-21 21:22:57,210 INFO L82 PathProgramCache]: Analyzing trace with hash 1027422766, now seen corresponding path program 1 times
[2020-08-21 21:22:57,232 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-08-21 21:22:57,233 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1869748346]
[2020-08-21 21:22:57,233 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-08-21 21:22:57,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2020-08-21 21:22:57,340 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace
[2020-08-21 21:22:57,341 INFO L520 BasicCegarLoop]: Counterexample might be feasible
[2020-08-21 21:22:57,345 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2020-08-21 21:22:57,359 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.08 09:22:57 BoogieIcfgContainer
[2020-08-21 21:22:57,360 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2020-08-21 21:22:57,363 INFO L168 Benchmark]: Toolchain (without parser) took 833.46 ms. Allocated memory was 141.6 MB in the beginning and 203.9 MB in the end (delta: 62.4 MB). Free memory was 105.1 MB in the beginning and 160.8 MB in the end (delta: -55.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 7.1 GB.
[2020-08-21 21:22:57,364 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 141.6 MB. Free memory was 123.1 MB in the beginning and 122.9 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB.
[2020-08-21 21:22:57,365 INFO L168 Benchmark]: CACSL2BoogieTranslator took 212.53 ms. Allocated memory is still 141.6 MB. Free memory was 104.9 MB in the beginning and 95.7 MB in the end (delta: 9.2 MB). Peak memory consumption was 9.2 MB. Max. memory is 7.1 GB.
[2020-08-21 21:22:57,366 INFO L168 Benchmark]: Boogie Preprocessor took 22.86 ms. Allocated memory is still 141.6 MB. Free memory was 95.7 MB in the beginning and 94.3 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB.
[2020-08-21 21:22:57,367 INFO L168 Benchmark]: RCFGBuilder took 300.39 ms. Allocated memory was 141.6 MB in the beginning and 203.9 MB in the end (delta: 62.4 MB). Free memory was 94.3 MB in the beginning and 172.3 MB in the end (delta: -78.0 MB). Peak memory consumption was 12.4 MB. Max. memory is 7.1 GB.
[2020-08-21 21:22:57,368 INFO L168 Benchmark]: TraceAbstraction took 292.72 ms. Allocated memory is still 203.9 MB. Free memory was 172.3 MB in the beginning and 160.8 MB in the end (delta: 11.5 MB). Peak memory consumption was 11.5 MB. Max. memory is 7.1 GB.
[2020-08-21 21:22:57,373 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] #######################
--- Results ---
* Results from de.uni_freiburg.informatik.ultimate.core:
- StatisticsResult: Toolchain Benchmarks
Benchmark results are:
* CDTParser took 0.22 ms. Allocated memory is still 141.6 MB. Free memory was 123.1 MB in the beginning and 122.9 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB.
* CACSL2BoogieTranslator took 212.53 ms. Allocated memory is still 141.6 MB. Free memory was 104.9 MB in the beginning and 95.7 MB in the end (delta: 9.2 MB). Peak memory consumption was 9.2 MB. Max. memory is 7.1 GB.
* Boogie Preprocessor took 22.86 ms. Allocated memory is still 141.6 MB. Free memory was 95.7 MB in the beginning and 94.3 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB.
* RCFGBuilder took 300.39 ms. Allocated memory was 141.6 MB in the beginning and 203.9 MB in the end (delta: 62.4 MB). Free memory was 94.3 MB in the beginning and 172.3 MB in the end (delta: -78.0 MB). Peak memory consumption was 12.4 MB. Max. memory is 7.1 GB.
* TraceAbstraction took 292.72 ms. Allocated memory is still 203.9 MB. Free memory was 172.3 MB in the beginning and 160.8 MB in the end (delta: 11.5 MB). Peak memory consumption was 11.5 MB. Max. memory is 7.1 GB.
* Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
- CounterExampleResult [Line: 14]: a call of __VERIFIER_error() is reachable
a call of __VERIFIER_error() is reachable
We found a FailurePath:
[L20] CALL f(h)
[L9] CALL g(1)
[L13] COND TRUE i==1
[L14] __VERIFIER_error()
- StatisticsResult: Ultimate Automizer benchmark data
CFG has 6 procedures, 24 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.2s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=24occurred 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: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 12 NumberOfCodeBlocks, 12 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 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...