/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=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=0.4 --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/test16.c
--------------------------------------------------------------------------------
This is Ultimate 0.1.25-c90d42b
[2020-09-25 05:31:43,690 INFO L177 SettingsManager]: Resetting all preferences to default values...
[2020-09-25 05:31:43,695 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values
[2020-09-25 05:31:43,742 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2020-09-25 05:31:43,743 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2020-09-25 05:31:43,755 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2020-09-25 05:31:43,757 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2020-09-25 05:31:43,761 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values
[2020-09-25 05:31:43,764 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values
[2020-09-25 05:31:43,766 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values
[2020-09-25 05:31:43,769 INFO L181 SettingsManager]: Resetting Sifa preferences to default values
[2020-09-25 05:31:43,770 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2020-09-25 05:31:43,770 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values
[2020-09-25 05:31:43,773 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values
[2020-09-25 05:31:43,777 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2020-09-25 05:31:43,779 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values
[2020-09-25 05:31:43,781 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2020-09-25 05:31:43,782 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2020-09-25 05:31:43,784 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2020-09-25 05:31:43,792 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values
[2020-09-25 05:31:43,793 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2020-09-25 05:31:43,795 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values
[2020-09-25 05:31:43,796 INFO L181 SettingsManager]: Resetting Referee preferences to default values
[2020-09-25 05:31:43,797 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values
[2020-09-25 05:31:43,801 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2020-09-25 05:31:43,801 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2020-09-25 05:31:43,801 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values
[2020-09-25 05:31:43,805 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values
[2020-09-25 05:31:43,805 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values
[2020-09-25 05:31:43,807 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring...
[2020-09-25 05:31:43,807 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values
[2020-09-25 05:31:43,808 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2020-09-25 05:31:43,809 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values
[2020-09-25 05:31:43,810 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values
[2020-09-25 05:31:43,811 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2020-09-25 05:31:43,812 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values
[2020-09-25 05:31:43,812 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2020-09-25 05:31:43,813 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring...
[2020-09-25 05:31:43,813 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values
[2020-09-25 05:31:43,814 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values
[2020-09-25 05:31:43,816 INFO L188 SettingsManager]: Finished resetting all preferences to default values...
[2020-09-25 05:31:43,816 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
[2020-09-25 05:31:43,860 INFO L113 SettingsManager]: Loading preferences was successful
[2020-09-25 05:31:43,860 INFO L115 SettingsManager]: Preferences different from defaults after loading the file:
[2020-09-25 05:31:43,861 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2020-09-25 05:31:43,862 INFO L138 SettingsManager]: * Create parallel compositions if possible=false
[2020-09-25 05:31:43,862 INFO L138 SettingsManager]: * Use SBE=true
[2020-09-25 05:31:43,862 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2020-09-25 05:31:43,862 INFO L138 SettingsManager]: * sizeof long=4
[2020-09-25 05:31:43,863 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true
[2020-09-25 05:31:43,863 INFO L138 SettingsManager]: * sizeof POINTER=4
[2020-09-25 05:31:43,863 INFO L138 SettingsManager]: * Check division by zero=IGNORE
[2020-09-25 05:31:43,863 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2020-09-25 05:31:43,863 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2020-09-25 05:31:43,864 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2020-09-25 05:31:43,864 INFO L138 SettingsManager]: * sizeof long double=12
[2020-09-25 05:31:43,864 INFO L138 SettingsManager]: * Check if freed pointer was valid=false
[2020-09-25 05:31:43,864 INFO L138 SettingsManager]: * Use constant arrays=true
[2020-09-25 05:31:43,865 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2020-09-25 05:31:43,865 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2020-09-25 05:31:43,865 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements
[2020-09-25 05:31:43,865 INFO L138 SettingsManager]: * To the following directory=./dump/
[2020-09-25 05:31:43,865 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode
[2020-09-25 05:31:43,866 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2020-09-25 05:31:43,866 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2020-09-25 05:31:43,866 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2020-09-25 05:31:43,866 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2020-09-25 05:31:43,867 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL
[2020-09-25 05:31:43,867 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2020-09-25 05:31:43,867 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2020-09-25 05:31:43,867 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE
[2020-09-25 05:31:43,867 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=WIDESTAMONGSMALL;tolerance=0.4;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=WIDESTAMONGSMALL;tolerance=0.4;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=WIDESTAMONGSMALL;tolerance=0.4;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=WIDESTAMONGSMALL;tolerance=0.4;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=WIDESTAMONGSMALL;tolerance=0.4;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=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;
[2020-09-25 05:31:44,339 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2020-09-25 05:31:44,357 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2020-09-25 05:31:44,361 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2020-09-25 05:31:44,363 INFO L271 PluginConnector]: Initializing CDTParser...
[2020-09-25 05:31:44,363 INFO L275 PluginConnector]: CDTParser initialized
[2020-09-25 05:31:44,365 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-regression/test16.c
[2020-09-25 05:31:44,461 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/51d88b384/33503f5751a34c269f6768830c61e38d/FLAG1943d145e
[2020-09-25 05:31:44,984 INFO L306 CDTParser]: Found 1 translation units.
[2020-09-25 05:31:44,985 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/ldv-regression/test16.c
[2020-09-25 05:31:44,992 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/51d88b384/33503f5751a34c269f6768830c61e38d/FLAG1943d145e
[2020-09-25 05:31:45,339 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/51d88b384/33503f5751a34c269f6768830c61e38d
[2020-09-25 05:31:45,351 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2020-09-25 05:31:45,356 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements.
[2020-09-25 05:31:45,357 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2020-09-25 05:31:45,358 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2020-09-25 05:31:45,364 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized
[2020-09-25 05:31:45,366 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 05:31:45" (1/1) ...
[2020-09-25 05:31:45,371 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7d85ba32 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:31:45, skipping insertion in model container
[2020-09-25 05:31:45,372 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 05:31:45" (1/1) ...
[2020-09-25 05:31:45,382 INFO L145 MainTranslator]: Starting translation in SV-COMP mode
[2020-09-25 05:31:45,409 INFO L178 MainTranslator]: Built tables and reachable declarations
[2020-09-25 05:31:45,626 INFO L206 PostProcessor]: Analyzing one entry point: main
[2020-09-25 05:31:45,644 INFO L203 MainTranslator]: Completed pre-run
[2020-09-25 05:31:45,663 INFO L206 PostProcessor]: Analyzing one entry point: main
[2020-09-25 05:31:45,684 INFO L208 MainTranslator]: Completed translation
[2020-09-25 05:31:45,685 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:31:45 WrapperNode
[2020-09-25 05:31:45,685 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2020-09-25 05:31:45,686 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2020-09-25 05:31:45,686 INFO L271 PluginConnector]: Initializing Boogie Preprocessor...
[2020-09-25 05:31:45,686 INFO L275 PluginConnector]: Boogie Preprocessor initialized
[2020-09-25 05:31:45,702 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:31:45" (1/1) ...
[2020-09-25 05:31:45,702 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:31:45" (1/1) ...
[2020-09-25 05:31:45,792 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:31:45" (1/1) ...
[2020-09-25 05:31:45,792 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:31:45" (1/1) ...
[2020-09-25 05:31:45,799 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:31:45" (1/1) ...
[2020-09-25 05:31:45,801 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:31:45" (1/1) ...
[2020-09-25 05:31:45,804 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:31:45" (1/1) ...
[2020-09-25 05:31:45,809 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2020-09-25 05:31:45,809 INFO L113 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2020-09-25 05:31:45,809 INFO L271 PluginConnector]: Initializing RCFGBuilder...
[2020-09-25 05:31:45,810 INFO L275 PluginConnector]: RCFGBuilder initialized
[2020-09-25 05:31:45,811 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:31:45" (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
[2020-09-25 05:31:45,894 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init
[2020-09-25 05:31:45,895 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2020-09-25 05:31:45,895 INFO L138 BoogieDeclarations]: Found implementation of procedure equal
[2020-09-25 05:31:45,895 INFO L138 BoogieDeclarations]: Found implementation of procedure main
[2020-09-25 05:31:45,895 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error
[2020-09-25 05:31:45,895 INFO L130 BoogieDeclarations]: Found specification of procedure equal
[2020-09-25 05:31:45,895 INFO L130 BoogieDeclarations]: Found specification of procedure read~int
[2020-09-25 05:31:45,896 INFO L130 BoogieDeclarations]: Found specification of procedure main
[2020-09-25 05:31:45,896 INFO L130 BoogieDeclarations]: Found specification of procedure write~int
[2020-09-25 05:31:45,896 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init
[2020-09-25 05:31:45,897 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2020-09-25 05:31:45,897 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int
[2020-09-25 05:31:45,897 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2020-09-25 05:31:45,897 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2020-09-25 05:31:46,156 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2020-09-25 05:31:46,157 INFO L295 CfgBuilder]: Removed 0 assume(true) statements.
[2020-09-25 05:31:46,164 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 05:31:46 BoogieIcfgContainer
[2020-09-25 05:31:46,164 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2020-09-25 05:31:46,166 INFO L113 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2020-09-25 05:31:46,166 INFO L271 PluginConnector]: Initializing TraceAbstraction...
[2020-09-25 05:31:46,170 INFO L275 PluginConnector]: TraceAbstraction initialized
[2020-09-25 05:31:46,170 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 05:31:45" (1/3) ...
[2020-09-25 05:31:46,171 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@349c8bc4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 05:31:46, skipping insertion in model container
[2020-09-25 05:31:46,171 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:31:45" (2/3) ...
[2020-09-25 05:31:46,172 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@349c8bc4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 05:31:46, skipping insertion in model container
[2020-09-25 05:31:46,172 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 05:31:46" (3/3) ...
[2020-09-25 05:31:46,175 INFO L109 eAbstractionObserver]: Analyzing ICFG test16.c
[2020-09-25 05:31:46,192 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION
[2020-09-25 05:31:46,202 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations.
[2020-09-25 05:31:46,227 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2020-09-25 05:31:46,274 INFO L375 AbstractCegarLoop]: Interprodecural is true
[2020-09-25 05:31:46,275 INFO L376 AbstractCegarLoop]: Hoare is true
[2020-09-25 05:31:46,275 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation
[2020-09-25 05:31:46,275 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE
[2020-09-25 05:31:46,275 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION
[2020-09-25 05:31:46,275 INFO L380 AbstractCegarLoop]: Difference is false
[2020-09-25 05:31:46,276 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA
[2020-09-25 05:31:46,276 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce========
[2020-09-25 05:31:46,308 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states.
[2020-09-25 05:31:46,317 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30
[2020-09-25 05:31:46,317 INFO L414 BasicCegarLoop]: Found error trace
[2020-09-25 05:31:46,318 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]
[2020-09-25 05:31:46,319 INFO L427 AbstractCegarLoop]: === Iteration 1 === [equalErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-25 05:31:46,327 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-09-25 05:31:46,327 INFO L82 PathProgramCache]: Analyzing trace with hash -2010514145, now seen corresponding path program 1 times
[2020-09-25 05:31:46,336 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-25 05:31:46,336 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [804894788]
[2020-09-25 05:31:46,337 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-25 05:31:46,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 05:31:46,592 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 05:31:47,288 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 05:31:47,288 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 38
[2020-09-25 05:31:47,289 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 05:31:47,290 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 759
[2020-09-25 05:31:47,293 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 05:31:47,293 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4
[2020-09-25 05:31:47,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10
[2020-09-25 05:31:47,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 20
[2020-09-25 05:31:47,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15
[2020-09-25 05:31:47,295 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5
[2020-09-25 05:31:47,792 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-25 05:31:47,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 05:31:47,809 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 05:31:47,834 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 05:31:47,835 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17
[2020-09-25 05:31:47,835 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 05:31:47,835 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29
[2020-09-25 05:31:47,836 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 05:31:47,836 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4
[2020-09-25 05:31:47,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 05:31:47,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 05:31:47,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 05:31:47,838 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2
[2020-09-25 05:31:47,863 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-09-25 05:31:47,864 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [804894788]
[2020-09-25 05:31:47,867 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-09-25 05:31:47,867 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12
[2020-09-25 05:31:47,869 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2023170620]
[2020-09-25 05:31:47,876 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states
[2020-09-25 05:31:47,877 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-25 05:31:47,896 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants.
[2020-09-25 05:31:47,898 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132
[2020-09-25 05:31:47,900 INFO L87 Difference]: Start difference. First operand 39 states. Second operand 12 states.
[2020-09-25 05:31:48,362 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 27
[2020-09-25 05:31:48,695 WARN L193 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 57
[2020-09-25 05:31:48,974 WARN L193 SmtUtils]: Spent 236.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 62
[2020-09-25 05:31:49,259 WARN L193 SmtUtils]: Spent 250.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 67
[2020-09-25 05:31:49,532 WARN L193 SmtUtils]: Spent 248.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 69
[2020-09-25 05:31:49,815 WARN L193 SmtUtils]: Spent 246.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 71
[2020-09-25 05:31:49,875 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-25 05:31:49,875 INFO L93 Difference]: Finished difference Result 46 states and 45 transitions.
[2020-09-25 05:31:49,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states.
[2020-09-25 05:31:49,878 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 29
[2020-09-25 05:31:49,879 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-25 05:31:49,888 INFO L225 Difference]: With dead ends: 46
[2020-09-25 05:31:49,888 INFO L226 Difference]: Without dead ends: 0
[2020-09-25 05:31:49,894 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=111, Invalid=309, Unknown=0, NotChecked=0, Total=420
[2020-09-25 05:31:49,915 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states.
[2020-09-25 05:31:49,921 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0.
[2020-09-25 05:31:49,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states.
[2020-09-25 05:31:49,922 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions.
[2020-09-25 05:31:49,924 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 29
[2020-09-25 05:31:49,924 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-09-25 05:31:49,925 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions.
[2020-09-25 05:31:49,925 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states.
[2020-09-25 05:31:49,925 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions.
[2020-09-25 05:31:49,925 INFO L282 IsEmpty]: Finished isEmpty. No accepting run.
[2020-09-25 05:31:49,926 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2020-09-25 05:31:49,928 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions.
[2020-09-25 05:31:50,080 INFO L268 CegarLoopResult]: For program point L5-4(line 5) no Hoare annotation was computed.
[2020-09-25 05:31:50,081 INFO L268 CegarLoopResult]: For program point L5-5(line 5) no Hoare annotation was computed.
[2020-09-25 05:31:50,081 INFO L268 CegarLoopResult]: For program point L5-6(line 5) no Hoare annotation was computed.
[2020-09-25 05:31:50,081 INFO L268 CegarLoopResult]: For program point equalEXIT(lines 4 12) no Hoare annotation was computed.
[2020-09-25 05:31:50,081 INFO L271 CegarLoopResult]: At program point equalENTRY(lines 4 12) the Hoare annotation is: true
[2020-09-25 05:31:50,082 INFO L268 CegarLoopResult]: For program point equalFINAL(lines 4 12) no Hoare annotation was computed.
[2020-09-25 05:31:50,082 INFO L268 CegarLoopResult]: For program point equalErr0ASSERT_VIOLATIONERROR_FUNCTION(line 10) no Hoare annotation was computed.
[2020-09-25 05:31:50,082 INFO L264 CegarLoopResult]: At program point L6(lines 4 12) the Hoare annotation is: (or (not (= (select (select |#memory_int| |~#b~0.base|) |~#b~0.offset|) (select (select |#memory_int| |~#a~0.base|) |~#a~0.offset|))) (not (= |~#a~0.offset| ~pa~0.offset)) (not (= ~pb~0.offset |~#b~0.offset|)) (not (= ~pb~0.base |~#b~0.base|)) (not (= |~#a~0.base| ~pa~0.base)) (not (= (select (select |#memory_int| |equal_#in~a.base|) |equal_#in~a.offset|) (select (select |#memory_int| |equal_#in~b.base|) |equal_#in~b.offset|))))
[2020-09-25 05:31:50,082 INFO L268 CegarLoopResult]: For program point L5(line 5) no Hoare annotation was computed.
[2020-09-25 05:31:50,083 INFO L268 CegarLoopResult]: For program point L4(lines 4 12) no Hoare annotation was computed.
[2020-09-25 05:31:50,083 INFO L268 CegarLoopResult]: For program point L5-1(line 5) no Hoare annotation was computed.
[2020-09-25 05:31:50,083 INFO L268 CegarLoopResult]: For program point L5-2(lines 5 7) no Hoare annotation was computed.
[2020-09-25 05:31:50,083 INFO L268 CegarLoopResult]: For program point L5-3(line 5) no Hoare annotation was computed.
[2020-09-25 05:31:50,083 INFO L268 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed.
[2020-09-25 05:31:50,083 INFO L268 CegarLoopResult]: For program point L15(line 15) no Hoare annotation was computed.
[2020-09-25 05:31:50,084 INFO L268 CegarLoopResult]: For program point L-1-1(line -1) no Hoare annotation was computed.
[2020-09-25 05:31:50,084 INFO L268 CegarLoopResult]: For program point L14(line 14) no Hoare annotation was computed.
[2020-09-25 05:31:50,084 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed.
[2020-09-25 05:31:50,084 INFO L268 CegarLoopResult]: For program point L14-1(line 14) no Hoare annotation was computed.
[2020-09-25 05:31:50,084 INFO L268 CegarLoopResult]: For program point L14-2(line 14) no Hoare annotation was computed.
[2020-09-25 05:31:50,085 INFO L268 CegarLoopResult]: For program point L14-3(line 14) no Hoare annotation was computed.
[2020-09-25 05:31:50,085 INFO L268 CegarLoopResult]: For program point L14-4(line 14) no Hoare annotation was computed.
[2020-09-25 05:31:50,085 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= ~pa~0.base |old(~pa~0.base)|) (= ~pb~0.base |old(~pb~0.base)|) (= |~#b~0.offset| |old(~#b~0.offset)|) (= ~pa~0.offset |old(~pa~0.offset)|) (= |old(#length)| |#length|) (= |~#a~0.offset| |old(~#a~0.offset)|) (= ~pb~0.offset |old(~pb~0.offset)|) (= |~#b~0.base| |old(~#b~0.base)|) (= |#NULL.base| |old(#NULL.base)|) (= |~#a~0.base| |old(~#a~0.base)|) (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#valid)| |#valid|))
[2020-09-25 05:31:50,085 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed.
[2020-09-25 05:31:50,085 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed.
[2020-09-25 05:31:50,085 INFO L271 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true
[2020-09-25 05:31:50,086 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true
[2020-09-25 05:31:50,086 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed.
[2020-09-25 05:31:50,086 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 17 28) the Hoare annotation is: (and (= ~pa~0.base |old(~pa~0.base)|) (= |old(~pb~0.base)| ~pb~0.base) (= |old(~pa~0.offset)| ~pa~0.offset) (= |old(~pb~0.offset)| ~pb~0.offset))
[2020-09-25 05:31:50,086 INFO L268 CegarLoopResult]: For program point mainFINAL(lines 17 28) no Hoare annotation was computed.
[2020-09-25 05:31:50,087 INFO L264 CegarLoopResult]: At program point L26(line 26) the Hoare annotation is: (and (= |~#b~0.base| ~pb~0.base) (= ~pa~0.base |~#a~0.base|) (= ~pa~0.offset |~#a~0.offset|) (= (select (select |#memory_int| |~#a~0.base|) |~#a~0.offset|) (select (select |#memory_int| |~#b~0.base|) |~#b~0.offset|)) (= ~pb~0.offset |~#b~0.offset|))
[2020-09-25 05:31:50,087 INFO L268 CegarLoopResult]: For program point L26-1(line 26) no Hoare annotation was computed.
[2020-09-25 05:31:50,087 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 17 28) no Hoare annotation was computed.
[2020-09-25 05:31:50,087 INFO L268 CegarLoopResult]: For program point L24(line 24) no Hoare annotation was computed.
[2020-09-25 05:31:50,087 INFO L268 CegarLoopResult]: For program point L24-1(line 24) no Hoare annotation was computed.
[2020-09-25 05:31:50,087 INFO L268 CegarLoopResult]: For program point L22(line 22) no Hoare annotation was computed.
[2020-09-25 05:31:50,088 INFO L268 CegarLoopResult]: For program point L21(line 21) no Hoare annotation was computed.
[2020-09-25 05:31:50,088 INFO L268 CegarLoopResult]: For program point L21-1(line 21) no Hoare annotation was computed.
[2020-09-25 05:31:50,088 INFO L268 CegarLoopResult]: For program point L19(line 19) no Hoare annotation was computed.
[2020-09-25 05:31:50,103 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int
[2020-09-25 05:31:50,104 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int
[2020-09-25 05:31:50,105 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int
[2020-09-25 05:31:50,105 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int
[2020-09-25 05:31:50,112 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int
[2020-09-25 05:31:50,112 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int
[2020-09-25 05:31:50,112 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int
[2020-09-25 05:31:50,113 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int
[2020-09-25 05:31:50,116 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.09 05:31:50 BoogieIcfgContainer
[2020-09-25 05:31:50,116 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2020-09-25 05:31:50,118 INFO L168 Benchmark]: Toolchain (without parser) took 4765.10 ms. Allocated memory was 141.0 MB in the beginning and 245.9 MB in the end (delta: 104.9 MB). Free memory was 104.8 MB in the beginning and 178.2 MB in the end (delta: -73.4 MB). Peak memory consumption was 31.5 MB. Max. memory is 7.1 GB.
[2020-09-25 05:31:50,119 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 141.0 MB. Free memory was 122.5 MB in the beginning and 122.3 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB.
[2020-09-25 05:31:50,120 INFO L168 Benchmark]: CACSL2BoogieTranslator took 327.94 ms. Allocated memory is still 141.0 MB. Free memory was 104.2 MB in the beginning and 94.6 MB in the end (delta: 9.6 MB). Peak memory consumption was 9.6 MB. Max. memory is 7.1 GB.
[2020-09-25 05:31:50,122 INFO L168 Benchmark]: Boogie Preprocessor took 123.22 ms. Allocated memory was 141.0 MB in the beginning and 204.5 MB in the end (delta: 63.4 MB). Free memory was 94.6 MB in the beginning and 182.6 MB in the end (delta: -88.0 MB). Peak memory consumption was 12.9 MB. Max. memory is 7.1 GB.
[2020-09-25 05:31:50,123 INFO L168 Benchmark]: RCFGBuilder took 355.39 ms. Allocated memory is still 204.5 MB. Free memory was 182.6 MB in the beginning and 166.7 MB in the end (delta: 15.9 MB). Peak memory consumption was 15.9 MB. Max. memory is 7.1 GB.
[2020-09-25 05:31:50,124 INFO L168 Benchmark]: TraceAbstraction took 3950.10 ms. Allocated memory was 204.5 MB in the beginning and 245.9 MB in the end (delta: 41.4 MB). Free memory was 166.7 MB in the beginning and 178.2 MB in the end (delta: -11.5 MB). Peak memory consumption was 29.9 MB. Max. memory is 7.1 GB.
[2020-09-25 05:31:50,128 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 141.0 MB. Free memory was 122.5 MB in the beginning and 122.3 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB.
* CACSL2BoogieTranslator took 327.94 ms. Allocated memory is still 141.0 MB. Free memory was 104.2 MB in the beginning and 94.6 MB in the end (delta: 9.6 MB). Peak memory consumption was 9.6 MB. Max. memory is 7.1 GB.
* Boogie Preprocessor took 123.22 ms. Allocated memory was 141.0 MB in the beginning and 204.5 MB in the end (delta: 63.4 MB). Free memory was 94.6 MB in the beginning and 182.6 MB in the end (delta: -88.0 MB). Peak memory consumption was 12.9 MB. Max. memory is 7.1 GB.
* RCFGBuilder took 355.39 ms. Allocated memory is still 204.5 MB. Free memory was 182.6 MB in the beginning and 166.7 MB in the end (delta: 15.9 MB). Peak memory consumption was 15.9 MB. Max. memory is 7.1 GB.
* TraceAbstraction took 3950.10 ms. Allocated memory was 204.5 MB in the beginning and 245.9 MB in the end (delta: 41.4 MB). Free memory was 166.7 MB in the beginning and 178.2 MB in the end (delta: -11.5 MB). Peak memory consumption was 29.9 MB. Max. memory is 7.1 GB.
* Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator:
- GenericResult: Unfinished Backtranslation
unknown boogie variable #memory_int
- GenericResult: Unfinished Backtranslation
unknown boogie variable #memory_int
- GenericResult: Unfinished Backtranslation
unknown boogie variable #memory_int
- GenericResult: Unfinished Backtranslation
unknown boogie variable #memory_int
- GenericResult: Unfinished Backtranslation
unknown boogie variable #memory_int
- GenericResult: Unfinished Backtranslation
unknown boogie variable #memory_int
- GenericResult: Unfinished Backtranslation
unknown boogie variable #memory_int
- GenericResult: Unfinished Backtranslation
unknown boogie variable #memory_int
* Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
- PositiveResult [Line: 10]: call of __VERIFIER_error() unreachable
For all program executions holds that call of __VERIFIER_error() unreachable at this location
- AllSpecificationsHoldResult: All specifications hold
1 specifications checked. All of them hold
- InvariantResult [Line: 4]: Loop Invariant
[2020-09-25 05:31:50,140 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int
[2020-09-25 05:31:50,140 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int
[2020-09-25 05:31:50,140 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int
[2020-09-25 05:31:50,140 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int
[2020-09-25 05:31:50,141 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int
[2020-09-25 05:31:50,141 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int
[2020-09-25 05:31:50,142 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int
[2020-09-25 05:31:50,142 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int
Derived loop invariant: ((((!(unknown-#memory_int-unknown[b][b] == unknown-#memory_int-unknown[a][a]) || !(a == pa)) || !(pb == b)) || !(pb == b)) || !(a == pa)) || !(unknown-#memory_int-unknown[a][a] == unknown-#memory_int-unknown[b][b])
- StatisticsResult: Ultimate Automizer benchmark data
CFG has 4 procedures, 39 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 3.6s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 2.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 23 SDtfs, 73 SDslu, 125 SDs, 0 SdLazy, 126 SolverSat, 14 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 22 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 2.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=39occurred 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: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 7 PreInvPairs, 7 NumberOfFragments, 118 HoareAnnotationTreeSize, 7 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 7 FomulaSimplificationsInter, 135 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 1.3s InterpolantComputationTime, 29 NumberOfCodeBlocks, 29 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 28 ConstructedInterpolants, 0 QuantifiedInterpolants, 8764 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 correct!
Received shutdown request...