java -ea -Xmx8000000000 -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default-Const.epf -i ../../../trunk/examples/svcomp/ldv-regression/test15_true-unreach-call_true-termination.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-370d6ab [2018-11-14 19:10:57,166 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-14 19:10:57,169 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-14 19:10:57,186 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-14 19:10:57,187 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-14 19:10:57,188 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-14 19:10:57,190 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-14 19:10:57,192 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-14 19:10:57,195 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-14 19:10:57,195 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-14 19:10:57,204 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-14 19:10:57,204 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-14 19:10:57,205 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-14 19:10:57,208 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-14 19:10:57,210 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-14 19:10:57,211 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-14 19:10:57,213 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-14 19:10:57,214 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-14 19:10:57,221 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-14 19:10:57,222 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-14 19:10:57,225 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-14 19:10:57,227 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-14 19:10:57,231 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-11-14 19:10:57,241 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default-Const.epf [2018-11-14 19:10:57,257 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-14 19:10:57,257 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-14 19:10:57,259 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-14 19:10:57,259 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-11-14 19:10:57,259 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-14 19:10:57,260 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-14 19:10:57,260 INFO L133 SettingsManager]: * Use SBE=true [2018-11-14 19:10:57,260 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-14 19:10:57,260 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-14 19:10:57,261 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-14 19:10:57,262 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-14 19:10:57,262 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-14 19:10:57,262 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-14 19:10:57,262 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-14 19:10:57,262 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-14 19:10:57,262 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-14 19:10:57,263 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-14 19:10:57,263 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-14 19:10:57,263 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-14 19:10:57,263 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-14 19:10:57,264 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-14 19:10:57,265 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-14 19:10:57,265 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-14 19:10:57,265 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-14 19:10:57,266 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-14 19:10:57,266 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-14 19:10:57,266 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-14 19:10:57,266 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-14 19:10:57,266 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-14 19:10:57,266 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-14 19:10:57,267 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-14 19:10:57,333 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-14 19:10:57,348 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-14 19:10:57,352 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-14 19:10:57,354 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-14 19:10:57,354 INFO L276 PluginConnector]: CDTParser initialized [2018-11-14 19:10:57,355 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-regression/test15_true-unreach-call_true-termination.c [2018-11-14 19:10:57,428 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e6bf78603/0b439841a52b40afb7148dd91925fb96/FLAG926b70111 [2018-11-14 19:10:57,857 INFO L298 CDTParser]: Found 1 translation units. [2018-11-14 19:10:57,858 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-regression/test15_true-unreach-call_true-termination.c [2018-11-14 19:10:57,863 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e6bf78603/0b439841a52b40afb7148dd91925fb96/FLAG926b70111 [2018-11-14 19:10:57,878 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e6bf78603/0b439841a52b40afb7148dd91925fb96 [2018-11-14 19:10:57,888 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-14 19:10:57,890 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-11-14 19:10:57,891 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-14 19:10:57,891 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-14 19:10:57,895 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-14 19:10:57,896 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 07:10:57" (1/1) ... [2018-11-14 19:10:57,900 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1747d2e2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 07:10:57, skipping insertion in model container [2018-11-14 19:10:57,900 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 07:10:57" (1/1) ... [2018-11-14 19:10:57,911 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-14 19:10:57,932 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-14 19:10:58,198 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-14 19:10:58,214 INFO L191 MainTranslator]: Completed pre-run [2018-11-14 19:10:58,234 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-14 19:10:58,261 INFO L195 MainTranslator]: Completed translation [2018-11-14 19:10:58,262 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 07:10:58 WrapperNode [2018-11-14 19:10:58,262 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-14 19:10:58,263 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-14 19:10:58,263 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-14 19:10:58,263 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-14 19:10:58,279 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 07:10:58" (1/1) ... [2018-11-14 19:10:58,279 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 07:10:58" (1/1) ... [2018-11-14 19:10:58,290 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 07:10:58" (1/1) ... [2018-11-14 19:10:58,290 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 07:10:58" (1/1) ... [2018-11-14 19:10:58,299 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 07:10:58" (1/1) ... [2018-11-14 19:10:58,302 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 07:10:58" (1/1) ... [2018-11-14 19:10:58,303 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 07:10:58" (1/1) ... [2018-11-14 19:10:58,305 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-14 19:10:58,306 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-14 19:10:58,306 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-14 19:10:58,306 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-14 19:10:58,307 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 07:10:58" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-14 19:10:58,436 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-14 19:10:58,436 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-14 19:10:58,436 INFO L138 BoogieDeclarations]: Found implementation of procedure assign [2018-11-14 19:10:58,436 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-14 19:10:58,437 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-11-14 19:10:58,437 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2018-11-14 19:10:58,437 INFO L130 BoogieDeclarations]: Found specification of procedure assign [2018-11-14 19:10:58,437 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-11-14 19:10:58,437 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-11-14 19:10:58,437 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-14 19:10:58,438 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-14 19:10:58,438 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-14 19:10:58,438 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-14 19:10:58,438 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-14 19:10:58,438 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2018-11-14 19:10:58,868 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-14 19:10:58,869 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 07:10:58 BoogieIcfgContainer [2018-11-14 19:10:58,869 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-14 19:10:58,872 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-14 19:10:58,872 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-14 19:10:58,876 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-14 19:10:58,876 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.11 07:10:57" (1/3) ... [2018-11-14 19:10:58,877 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6abf3d29 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 07:10:58, skipping insertion in model container [2018-11-14 19:10:58,877 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 07:10:58" (2/3) ... [2018-11-14 19:10:58,878 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6abf3d29 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 07:10:58, skipping insertion in model container [2018-11-14 19:10:58,878 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 07:10:58" (3/3) ... [2018-11-14 19:10:58,880 INFO L112 eAbstractionObserver]: Analyzing ICFG test15_true-unreach-call_true-termination.c [2018-11-14 19:10:58,891 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-14 19:10:58,902 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-14 19:10:58,921 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-14 19:10:58,954 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-14 19:10:58,955 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-14 19:10:58,955 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-14 19:10:58,955 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-14 19:10:58,955 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-14 19:10:58,956 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-14 19:10:58,956 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-14 19:10:58,956 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-14 19:10:58,956 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-14 19:10:58,975 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states. [2018-11-14 19:10:58,981 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-11-14 19:10:58,982 INFO L367 BasicCegarLoop]: Found error trace [2018-11-14 19:10:58,983 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-14 19:10:58,985 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-14 19:10:58,991 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-14 19:10:58,992 INFO L82 PathProgramCache]: Analyzing trace with hash -1573149608, now seen corresponding path program 1 times [2018-11-14 19:10:58,994 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-14 19:10:58,995 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-14 19:10:59,041 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-14 19:10:59,041 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-14 19:10:59,041 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-14 19:10:59,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-14 19:10:59,598 INFO L256 TraceCheckUtils]: 0: Hoare triple {21#true} call ULTIMATE.init(); {21#true} is VALID [2018-11-14 19:10:59,603 INFO L273 TraceCheckUtils]: 1: Hoare triple {21#true} #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0]; {21#true} is VALID [2018-11-14 19:10:59,603 INFO L273 TraceCheckUtils]: 2: Hoare triple {21#true} assume true; {21#true} is VALID [2018-11-14 19:10:59,604 INFO L268 TraceCheckUtils]: 3: Hoare quadruple {21#true} {21#true} #19#return; {21#true} is VALID [2018-11-14 19:10:59,604 INFO L256 TraceCheckUtils]: 4: Hoare triple {21#true} call #t~ret4 := main(); {21#true} is VALID [2018-11-14 19:10:59,618 INFO L273 TraceCheckUtils]: 5: Hoare triple {21#true} call ~#a~0.base, ~#a~0.offset := #Ultimate.alloc(4);call ~#b~0.base, ~#b~0.offset := #Ultimate.alloc(4);assume -2147483648 <= #t~nondet1 && #t~nondet1 <= 2147483647;call write~int(#t~nondet1, ~#b~0.base, ~#b~0.offset, 4);havoc #t~nondet1; {23#(not (= |main_~#a~0.base| |main_~#b~0.base|))} is VALID [2018-11-14 19:10:59,619 INFO L256 TraceCheckUtils]: 6: Hoare triple {23#(not (= |main_~#a~0.base| |main_~#b~0.base|))} call assign(~#a~0.base, ~#a~0.offset, ~#b~0.base, ~#b~0.offset); {21#true} is VALID [2018-11-14 19:10:59,633 INFO L273 TraceCheckUtils]: 7: Hoare triple {21#true} ~pa.base, ~pa.offset := #in~pa.base, #in~pa.offset;~pb.base, ~pb.offset := #in~pb.base, #in~pb.offset;call #t~mem0 := read~int(~pb.base, ~pb.offset, 4);call write~int(#t~mem0, ~pa.base, ~pa.offset, 4);havoc #t~mem0; {24#(or (= (select (select |#memory_int| |assign_#in~pa.base|) |assign_#in~pa.offset|) (select (select |#memory_int| |assign_#in~pb.base|) |assign_#in~pb.offset|)) (= |assign_#in~pb.base| |assign_#in~pa.base|))} is VALID [2018-11-14 19:10:59,646 INFO L273 TraceCheckUtils]: 8: Hoare triple {24#(or (= (select (select |#memory_int| |assign_#in~pa.base|) |assign_#in~pa.offset|) (select (select |#memory_int| |assign_#in~pb.base|) |assign_#in~pb.offset|)) (= |assign_#in~pb.base| |assign_#in~pa.base|))} assume true; {24#(or (= (select (select |#memory_int| |assign_#in~pa.base|) |assign_#in~pa.offset|) (select (select |#memory_int| |assign_#in~pb.base|) |assign_#in~pb.offset|)) (= |assign_#in~pb.base| |assign_#in~pa.base|))} is VALID [2018-11-14 19:10:59,661 INFO L268 TraceCheckUtils]: 9: Hoare quadruple {24#(or (= (select (select |#memory_int| |assign_#in~pa.base|) |assign_#in~pa.offset|) (select (select |#memory_int| |assign_#in~pb.base|) |assign_#in~pb.offset|)) (= |assign_#in~pb.base| |assign_#in~pa.base|))} {23#(not (= |main_~#a~0.base| |main_~#b~0.base|))} #23#return; {25#(= (select (select |#memory_int| |main_~#a~0.base|) |main_~#a~0.offset|) (select (select |#memory_int| |main_~#b~0.base|) |main_~#b~0.offset|))} is VALID [2018-11-14 19:10:59,674 INFO L273 TraceCheckUtils]: 10: Hoare triple {25#(= (select (select |#memory_int| |main_~#a~0.base|) |main_~#a~0.offset|) (select (select |#memory_int| |main_~#b~0.base|) |main_~#b~0.offset|))} call #t~mem2 := read~int(~#a~0.base, ~#a~0.offset, 4);call #t~mem3 := read~int(~#b~0.base, ~#b~0.offset, 4); {26#(= |main_#t~mem3| |main_#t~mem2|)} is VALID [2018-11-14 19:10:59,687 INFO L273 TraceCheckUtils]: 11: Hoare triple {26#(= |main_#t~mem3| |main_#t~mem2|)} assume #t~mem2 != #t~mem3;havoc #t~mem2;havoc #t~mem3; {22#false} is VALID [2018-11-14 19:10:59,688 INFO L273 TraceCheckUtils]: 12: Hoare triple {22#false} assume !false; {22#false} is VALID [2018-11-14 19:10:59,693 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-14 19:10:59,696 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-14 19:10:59,696 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-14 19:10:59,702 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 13 [2018-11-14 19:10:59,706 INFO L84 Accepts]: Finished accepts. word is accepted. [2018-11-14 19:10:59,712 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 6 states. [2018-11-14 19:10:59,782 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 13 edges. 13 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2018-11-14 19:10:59,783 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-14 19:10:59,794 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-14 19:10:59,795 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-11-14 19:10:59,798 INFO L87 Difference]: Start difference. First operand 18 states. Second operand 6 states. [2018-11-14 19:11:00,577 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-14 19:11:00,577 INFO L93 Difference]: Finished difference Result 22 states and 21 transitions. [2018-11-14 19:11:00,578 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-14 19:11:00,578 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 13 [2018-11-14 19:11:00,578 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-14 19:11:00,579 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2018-11-14 19:11:00,591 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 21 transitions. [2018-11-14 19:11:00,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2018-11-14 19:11:00,595 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 21 transitions. [2018-11-14 19:11:00,595 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 6 states and 21 transitions. [2018-11-14 19:11:00,662 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 21 edges. 21 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2018-11-14 19:11:00,668 INFO L225 Difference]: With dead ends: 22 [2018-11-14 19:11:00,668 INFO L226 Difference]: Without dead ends: 0 [2018-11-14 19:11:00,672 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-11-14 19:11:00,687 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-14 19:11:00,693 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-14 19:11:00,693 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2018-11-14 19:11:00,694 INFO L82 GeneralOperation]: Start isEquivalent. First operand 0 states. Second operand 0 states. [2018-11-14 19:11:00,694 INFO L74 IsIncluded]: Start isIncluded. First operand 0 states. Second operand 0 states. [2018-11-14 19:11:00,694 INFO L87 Difference]: Start difference. First operand 0 states. Second operand 0 states. [2018-11-14 19:11:00,695 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-14 19:11:00,695 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2018-11-14 19:11:00,695 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-14 19:11:00,695 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-14 19:11:00,695 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2018-11-14 19:11:00,696 INFO L74 IsIncluded]: Start isIncluded. First operand 0 states. Second operand 0 states. [2018-11-14 19:11:00,696 INFO L87 Difference]: Start difference. First operand 0 states. Second operand 0 states. [2018-11-14 19:11:00,696 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-14 19:11:00,696 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2018-11-14 19:11:00,696 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-14 19:11:00,696 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-14 19:11:00,696 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2018-11-14 19:11:00,697 INFO L88 GeneralOperation]: Finished isEquivalent. [2018-11-14 19:11:00,697 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2018-11-14 19:11:00,697 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-14 19:11:00,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-14 19:11:00,699 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 13 [2018-11-14 19:11:00,699 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-14 19:11:00,699 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-14 19:11:00,700 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-14 19:11:00,700 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-14 19:11:00,700 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-14 19:11:00,705 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-14 19:11:00,762 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-11-14 19:11:00,762 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2018-11-14 19:11:00,762 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-11-14 19:11:00,762 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-11-14 19:11:00,763 INFO L428 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-11-14 19:11:00,763 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-11-14 19:11:00,763 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-11-14 19:11:00,763 INFO L421 ceAbstractionStarter]: At program point L14(lines 9 21) the Hoare annotation is: false [2018-11-14 19:11:00,763 INFO L428 ceAbstractionStarter]: At program point mainENTRY(lines 9 21) the Hoare annotation is: true [2018-11-14 19:11:00,764 INFO L425 ceAbstractionStarter]: For program point L13(lines 13 15) no Hoare annotation was computed. [2018-11-14 19:11:00,764 INFO L425 ceAbstractionStarter]: For program point mainFINAL(lines 9 21) no Hoare annotation was computed. [2018-11-14 19:11:00,764 INFO L421 ceAbstractionStarter]: At program point L12(line 12) the Hoare annotation is: (not (= |main_~#a~0.base| |main_~#b~0.base|)) [2018-11-14 19:11:00,764 INFO L425 ceAbstractionStarter]: For program point L12-1(line 12) no Hoare annotation was computed. [2018-11-14 19:11:00,765 INFO L425 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 19) no Hoare annotation was computed. [2018-11-14 19:11:00,765 INFO L425 ceAbstractionStarter]: For program point mainEXIT(lines 9 21) no Hoare annotation was computed. [2018-11-14 19:11:00,765 INFO L425 ceAbstractionStarter]: For program point assignEXIT(lines 5 7) no Hoare annotation was computed. [2018-11-14 19:11:00,765 INFO L428 ceAbstractionStarter]: At program point assignENTRY(lines 5 7) the Hoare annotation is: true [2018-11-14 19:11:00,765 INFO L425 ceAbstractionStarter]: For program point assignFINAL(lines 5 7) no Hoare annotation was computed. [2018-11-14 19:11:00,768 WARN L170 areAnnotationChecker]: ULTIMATE.initFINAL has no Hoare annotation [2018-11-14 19:11:00,787 WARN L170 areAnnotationChecker]: assignFINAL has no Hoare annotation [2018-11-14 19:11:00,787 WARN L170 areAnnotationChecker]: ULTIMATE.initFINAL has no Hoare annotation [2018-11-14 19:11:00,787 WARN L170 areAnnotationChecker]: ULTIMATE.startFINAL has no Hoare annotation [2018-11-14 19:11:00,788 WARN L170 areAnnotationChecker]: L12-1 has no Hoare annotation [2018-11-14 19:11:00,788 WARN L170 areAnnotationChecker]: assignFINAL has no Hoare annotation [2018-11-14 19:11:00,788 WARN L170 areAnnotationChecker]: ULTIMATE.initEXIT has no Hoare annotation [2018-11-14 19:11:00,788 WARN L170 areAnnotationChecker]: ULTIMATE.startFINAL has no Hoare annotation [2018-11-14 19:11:00,788 WARN L170 areAnnotationChecker]: L12-1 has no Hoare annotation [2018-11-14 19:11:00,789 WARN L170 areAnnotationChecker]: assignEXIT has no Hoare annotation [2018-11-14 19:11:00,789 WARN L170 areAnnotationChecker]: L13 has no Hoare annotation [2018-11-14 19:11:00,789 WARN L170 areAnnotationChecker]: L13 has no Hoare annotation [2018-11-14 19:11:00,789 WARN L170 areAnnotationChecker]: mainErr0ASSERT_VIOLATIONERROR_FUNCTION has no Hoare annotation [2018-11-14 19:11:00,789 WARN L170 areAnnotationChecker]: mainFINAL has no Hoare annotation [2018-11-14 19:11:00,790 WARN L170 areAnnotationChecker]: mainFINAL has no Hoare annotation [2018-11-14 19:11:00,790 WARN L170 areAnnotationChecker]: mainEXIT has no Hoare annotation [2018-11-14 19:11:00,790 INFO L163 areAnnotationChecker]: CFG has 4 edges. 4 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. 0 times interpolants missing. [2018-11-14 19:11:00,796 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.11 07:11:00 BoogieIcfgContainer [2018-11-14 19:11:00,797 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-14 19:11:00,798 INFO L168 Benchmark]: Toolchain (without parser) took 2909.62 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 747.6 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -720.7 MB). Peak memory consumption was 26.9 MB. Max. memory is 7.1 GB. [2018-11-14 19:11:00,801 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-11-14 19:11:00,802 INFO L168 Benchmark]: CACSL2BoogieTranslator took 371.72 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 7.1 GB. [2018-11-14 19:11:00,803 INFO L168 Benchmark]: Boogie Preprocessor took 42.34 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-11-14 19:11:00,803 INFO L168 Benchmark]: RCFGBuilder took 563.67 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 747.6 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -797.7 MB). Peak memory consumption was 26.3 MB. Max. memory is 7.1 GB. [2018-11-14 19:11:00,804 INFO L168 Benchmark]: TraceAbstraction took 1925.07 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.2 GB in the end (delta: 66.4 MB). Peak memory consumption was 66.4 MB. Max. memory is 7.1 GB. [2018-11-14 19:11:00,808 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - GenericResult: Assertions are enabled Assertions are enabled - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 371.72 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 42.34 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. * RCFGBuilder took 563.67 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 747.6 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -797.7 MB). Peak memory consumption was 26.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1925.07 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.2 GB in the end (delta: 66.4 MB). Peak memory consumption was 66.4 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 19]: 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: 9]: Loop Invariant Derived loop invariant: 0 - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 18 locations, 1 error locations. SAFE Result, 1.8s OverallTime, 1 OverallIterations, 1 TraceHistogramMax, 0.8s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 12 SDtfs, 2 SDslu, 41 SDs, 0 SdLazy, 14 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=18occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 7 PreInvPairs, 7 NumberOfFragments, 10 HoareAnnotationTreeSize, 7 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 7 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 13 NumberOfCodeBlocks, 13 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 12 ConstructedInterpolants, 0 QuantifiedInterpolants, 660 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...