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.epf -i ../../../trunk/examples/svcomp/ldv-regression/test04_true-unreach-call_true-termination.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-370d6ab [2018-11-14 17:23:11,853 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-14 17:23:11,855 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-14 17:23:11,871 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-14 17:23:11,872 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-14 17:23:11,873 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-14 17:23:11,874 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-14 17:23:11,876 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-14 17:23:11,877 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-14 17:23:11,878 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-14 17:23:11,879 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-14 17:23:11,879 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-14 17:23:11,880 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-14 17:23:11,881 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-14 17:23:11,882 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-14 17:23:11,883 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-14 17:23:11,884 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-14 17:23:11,886 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-14 17:23:11,888 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-14 17:23:11,889 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-14 17:23:11,890 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-14 17:23:11,892 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-14 17:23:11,894 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-11-14 17:23:11,902 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2018-11-14 17:23:11,917 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-14 17:23:11,918 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-14 17:23:11,919 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-14 17:23:11,919 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-11-14 17:23:11,920 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-14 17:23:11,920 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-14 17:23:11,920 INFO L133 SettingsManager]: * Use SBE=true [2018-11-14 17:23:11,920 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-14 17:23:11,920 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-14 17:23:11,921 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-14 17:23:11,921 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-14 17:23:11,921 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-14 17:23:11,921 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-14 17:23:11,922 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-14 17:23:11,922 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-14 17:23:11,922 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-14 17:23:11,922 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-14 17:23:11,922 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-14 17:23:11,923 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-14 17:23:11,923 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-14 17:23:11,923 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-14 17:23:11,923 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-14 17:23:11,923 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-14 17:23:11,924 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-14 17:23:11,924 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-14 17:23:11,924 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-14 17:23:11,924 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-14 17:23:11,924 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-14 17:23:11,925 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-14 17:23:11,925 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-14 17:23:11,968 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-14 17:23:11,983 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-14 17:23:11,987 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-14 17:23:11,989 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-14 17:23:11,990 INFO L276 PluginConnector]: CDTParser initialized [2018-11-14 17:23:11,991 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-regression/test04_true-unreach-call_true-termination.c [2018-11-14 17:23:12,052 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6485da08b/664df09841f84edc8073ec69e6db0398/FLAG76acbeed6 [2018-11-14 17:23:12,506 INFO L298 CDTParser]: Found 1 translation units. [2018-11-14 17:23:12,507 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-regression/test04_true-unreach-call_true-termination.c [2018-11-14 17:23:12,515 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6485da08b/664df09841f84edc8073ec69e6db0398/FLAG76acbeed6 [2018-11-14 17:23:12,537 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6485da08b/664df09841f84edc8073ec69e6db0398 [2018-11-14 17:23:12,551 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-14 17:23:12,553 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-11-14 17:23:12,554 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-14 17:23:12,556 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-14 17:23:12,560 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-14 17:23:12,562 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 05:23:12" (1/1) ... [2018-11-14 17:23:12,565 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5bb5b19e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:23:12, skipping insertion in model container [2018-11-14 17:23:12,566 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 05:23:12" (1/1) ... [2018-11-14 17:23:12,578 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-14 17:23:12,606 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-14 17:23:12,847 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-14 17:23:12,865 INFO L191 MainTranslator]: Completed pre-run [2018-11-14 17:23:12,887 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-14 17:23:12,911 INFO L195 MainTranslator]: Completed translation [2018-11-14 17:23:12,911 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:23:12 WrapperNode [2018-11-14 17:23:12,912 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-14 17:23:12,912 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-14 17:23:12,913 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-14 17:23:12,913 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-14 17:23:12,928 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:23:12" (1/1) ... [2018-11-14 17:23:12,929 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:23:12" (1/1) ... [2018-11-14 17:23:12,939 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:23:12" (1/1) ... [2018-11-14 17:23:12,939 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:23:12" (1/1) ... [2018-11-14 17:23:12,954 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:23:12" (1/1) ... [2018-11-14 17:23:12,958 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:23:12" (1/1) ... [2018-11-14 17:23:12,960 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:23:12" (1/1) ... [2018-11-14 17:23:12,962 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-14 17:23:12,964 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-14 17:23:12,964 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-14 17:23:12,964 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-14 17:23:12,966 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:23:12" (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 17:23:13,135 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-14 17:23:13,135 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-14 17:23:13,136 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2018-11-14 17:23:13,137 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-14 17:23:13,137 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-11-14 17:23:13,137 INFO L130 BoogieDeclarations]: Found specification of procedure f [2018-11-14 17:23:13,137 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-14 17:23:13,137 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-14 17:23:13,138 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-11-14 17:23:13,138 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-11-14 17:23:13,138 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-14 17:23:13,138 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-14 17:23:13,138 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-14 17:23:13,138 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2018-11-14 17:23:13,613 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-14 17:23:13,614 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 05:23:13 BoogieIcfgContainer [2018-11-14 17:23:13,614 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-14 17:23:13,616 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-14 17:23:13,616 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-14 17:23:13,619 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-14 17:23:13,620 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.11 05:23:12" (1/3) ... [2018-11-14 17:23:13,620 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@baf4b36 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 05:23:13, skipping insertion in model container [2018-11-14 17:23:13,621 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:23:12" (2/3) ... [2018-11-14 17:23:13,621 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@baf4b36 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 05:23:13, skipping insertion in model container [2018-11-14 17:23:13,621 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 05:23:13" (3/3) ... [2018-11-14 17:23:13,623 INFO L112 eAbstractionObserver]: Analyzing ICFG test04_true-unreach-call_true-termination.c [2018-11-14 17:23:13,633 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-14 17:23:13,642 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-14 17:23:13,660 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-14 17:23:13,693 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-14 17:23:13,693 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-14 17:23:13,694 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-14 17:23:13,694 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-14 17:23:13,694 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-14 17:23:13,694 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-14 17:23:13,694 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-14 17:23:13,694 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-14 17:23:13,695 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-14 17:23:13,714 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states. [2018-11-14 17:23:13,720 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-11-14 17:23:13,720 INFO L367 BasicCegarLoop]: Found error trace [2018-11-14 17:23:13,721 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-14 17:23:13,724 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-14 17:23:13,730 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-14 17:23:13,731 INFO L82 PathProgramCache]: Analyzing trace with hash 1498735640, now seen corresponding path program 1 times [2018-11-14 17:23:13,733 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-14 17:23:13,734 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-14 17:23:13,792 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-14 17:23:13,792 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-14 17:23:13,792 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-14 17:23:13,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-14 17:23:14,344 WARN L179 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 14 [2018-11-14 17:23:14,563 INFO L256 TraceCheckUtils]: 0: Hoare triple {21#true} call ULTIMATE.init(); {21#true} is VALID [2018-11-14 17:23:14,568 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 17:23:14,568 INFO L273 TraceCheckUtils]: 2: Hoare triple {21#true} assume true; {21#true} is VALID [2018-11-14 17:23:14,569 INFO L268 TraceCheckUtils]: 3: Hoare quadruple {21#true} {21#true} #19#return; {21#true} is VALID [2018-11-14 17:23:14,569 INFO L256 TraceCheckUtils]: 4: Hoare triple {21#true} call #t~ret2 := main(); {21#true} is VALID [2018-11-14 17:23:14,574 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);~p1~0.base, ~p1~0.offset := ~#a~0.base, ~#a~0.offset;~p2~0.base, ~p2~0.offset := ~#b~0.base, ~#b~0.offset; {23#(and (= |main_~#a~0.offset| main_~p1~0.offset) (= |main_~#a~0.base| main_~p1~0.base) (= main_~p1~0.offset main_~p2~0.offset) (not (= main_~p1~0.base main_~p2~0.base)))} is VALID [2018-11-14 17:23:14,575 INFO L256 TraceCheckUtils]: 6: Hoare triple {23#(and (= |main_~#a~0.offset| main_~p1~0.offset) (= |main_~#a~0.base| main_~p1~0.base) (= main_~p1~0.offset main_~p2~0.offset) (not (= main_~p1~0.base main_~p2~0.base)))} call #t~ret0 := f(~p1~0.base, ~p1~0.offset, ~p2~0.base, ~p2~0.offset); {21#true} is VALID [2018-11-14 17:23:14,577 INFO L273 TraceCheckUtils]: 7: Hoare triple {21#true} ~p1.base, ~p1.offset := #in~p1.base, #in~p1.offset;~p2.base, ~p2.offset := #in~p2.base, #in~p2.offset;#res := (if ~p1.base == ~p2.base && ~p1.offset == ~p2.offset then 1 else 0); {24#(or (and (= |f_#in~p2.base| |f_#in~p1.base|) (= 1 |f_#res|)) (= 0 |f_#res|) (not (= |f_#in~p2.offset| |f_#in~p1.offset|)))} is VALID [2018-11-14 17:23:14,578 INFO L273 TraceCheckUtils]: 8: Hoare triple {24#(or (and (= |f_#in~p2.base| |f_#in~p1.base|) (= 1 |f_#res|)) (= 0 |f_#res|) (not (= |f_#in~p2.offset| |f_#in~p1.offset|)))} assume true; {24#(or (and (= |f_#in~p2.base| |f_#in~p1.base|) (= 1 |f_#res|)) (= 0 |f_#res|) (not (= |f_#in~p2.offset| |f_#in~p1.offset|)))} is VALID [2018-11-14 17:23:14,584 INFO L268 TraceCheckUtils]: 9: Hoare quadruple {24#(or (and (= |f_#in~p2.base| |f_#in~p1.base|) (= 1 |f_#res|)) (= 0 |f_#res|) (not (= |f_#in~p2.offset| |f_#in~p1.offset|)))} {23#(and (= |main_~#a~0.offset| main_~p1~0.offset) (= |main_~#a~0.base| main_~p1~0.base) (= main_~p1~0.offset main_~p2~0.offset) (not (= main_~p1~0.base main_~p2~0.base)))} #23#return; {25#(and (= |main_~#a~0.offset| main_~p1~0.offset) (= |main_~#a~0.base| main_~p1~0.base) (= 0 |main_#t~ret0|))} is VALID [2018-11-14 17:23:14,586 INFO L273 TraceCheckUtils]: 10: Hoare triple {25#(and (= |main_~#a~0.offset| main_~p1~0.offset) (= |main_~#a~0.base| main_~p1~0.base) (= 0 |main_#t~ret0|))} assume -2147483648 <= #t~ret0 && #t~ret0 <= 2147483647;call write~int(#t~ret0, ~#a~0.base, ~#a~0.offset, 4);havoc #t~ret0;call #t~mem1 := read~int(~p1~0.base, ~p1~0.offset, 4); {26#(= |main_#t~mem1| 0)} is VALID [2018-11-14 17:23:14,586 INFO L273 TraceCheckUtils]: 11: Hoare triple {26#(= |main_#t~mem1| 0)} assume #t~mem1 != 0;havoc #t~mem1; {22#false} is VALID [2018-11-14 17:23:14,587 INFO L273 TraceCheckUtils]: 12: Hoare triple {22#false} assume !false; {22#false} is VALID [2018-11-14 17:23:14,590 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 17:23:14,593 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-14 17:23:14,594 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-14 17:23:14,599 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 13 [2018-11-14 17:23:14,602 INFO L84 Accepts]: Finished accepts. word is accepted. [2018-11-14 17:23:14,606 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 6 states. [2018-11-14 17:23:14,670 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 17:23:14,670 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-14 17:23:14,679 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-14 17:23:14,679 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-11-14 17:23:14,682 INFO L87 Difference]: Start difference. First operand 18 states. Second operand 6 states. [2018-11-14 17:23:15,140 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-14 17:23:15,141 INFO L93 Difference]: Finished difference Result 22 states and 21 transitions. [2018-11-14 17:23:15,141 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-14 17:23:15,141 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 13 [2018-11-14 17:23:15,141 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-14 17:23:15,143 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2018-11-14 17:23:15,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 21 transitions. [2018-11-14 17:23:15,156 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2018-11-14 17:23:15,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 21 transitions. [2018-11-14 17:23:15,160 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 6 states and 21 transitions. [2018-11-14 17:23:15,410 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 17:23:15,417 INFO L225 Difference]: With dead ends: 22 [2018-11-14 17:23:15,418 INFO L226 Difference]: Without dead ends: 0 [2018-11-14 17:23:15,421 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2018-11-14 17:23:15,437 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-14 17:23:15,444 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-14 17:23:15,445 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2018-11-14 17:23:15,445 INFO L82 GeneralOperation]: Start isEquivalent. First operand 0 states. Second operand 0 states. [2018-11-14 17:23:15,446 INFO L74 IsIncluded]: Start isIncluded. First operand 0 states. Second operand 0 states. [2018-11-14 17:23:15,446 INFO L87 Difference]: Start difference. First operand 0 states. Second operand 0 states. [2018-11-14 17:23:15,447 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-14 17:23:15,447 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2018-11-14 17:23:15,447 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-14 17:23:15,448 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-14 17:23:15,448 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2018-11-14 17:23:15,448 INFO L74 IsIncluded]: Start isIncluded. First operand 0 states. Second operand 0 states. [2018-11-14 17:23:15,448 INFO L87 Difference]: Start difference. First operand 0 states. Second operand 0 states. [2018-11-14 17:23:15,449 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-14 17:23:15,449 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2018-11-14 17:23:15,449 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-14 17:23:15,449 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-14 17:23:15,450 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2018-11-14 17:23:15,450 INFO L88 GeneralOperation]: Finished isEquivalent. [2018-11-14 17:23:15,450 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2018-11-14 17:23:15,450 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-14 17:23:15,451 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-14 17:23:15,452 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 13 [2018-11-14 17:23:15,453 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-14 17:23:15,453 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-14 17:23:15,453 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-14 17:23:15,453 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-14 17:23:15,454 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-14 17:23:15,459 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-14 17:23:15,578 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-11-14 17:23:15,578 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2018-11-14 17:23:15,578 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-11-14 17:23:15,579 INFO L425 ceAbstractionStarter]: For program point fEXIT(lines 4 6) no Hoare annotation was computed. [2018-11-14 17:23:15,579 INFO L428 ceAbstractionStarter]: At program point fENTRY(lines 4 6) the Hoare annotation is: true [2018-11-14 17:23:15,579 INFO L425 ceAbstractionStarter]: For program point fFINAL(lines 4 6) no Hoare annotation was computed. [2018-11-14 17:23:15,579 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-11-14 17:23:15,579 INFO L428 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-11-14 17:23:15,580 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-11-14 17:23:15,580 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-11-14 17:23:15,580 INFO L421 ceAbstractionStarter]: At program point L17(lines 8 24) the Hoare annotation is: false [2018-11-14 17:23:15,580 INFO L425 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 22) no Hoare annotation was computed. [2018-11-14 17:23:15,580 INFO L425 ceAbstractionStarter]: For program point L16(lines 16 18) no Hoare annotation was computed. [2018-11-14 17:23:15,580 INFO L421 ceAbstractionStarter]: At program point L14(line 14) the Hoare annotation is: (and (= |main_~#a~0.offset| main_~p1~0.offset) (= |main_~#a~0.base| main_~p1~0.base) (= main_~p1~0.offset main_~p2~0.offset) (not (= main_~p1~0.base main_~p2~0.base))) [2018-11-14 17:23:15,581 INFO L428 ceAbstractionStarter]: At program point mainENTRY(lines 8 24) the Hoare annotation is: true [2018-11-14 17:23:15,581 INFO L425 ceAbstractionStarter]: For program point L14-1(line 14) no Hoare annotation was computed. [2018-11-14 17:23:15,581 INFO L425 ceAbstractionStarter]: For program point mainFINAL(lines 8 24) no Hoare annotation was computed. [2018-11-14 17:23:15,581 INFO L425 ceAbstractionStarter]: For program point mainEXIT(lines 8 24) no Hoare annotation was computed. [2018-11-14 17:23:15,583 WARN L170 areAnnotationChecker]: ULTIMATE.initFINAL has no Hoare annotation [2018-11-14 17:23:15,584 WARN L170 areAnnotationChecker]: fFINAL has no Hoare annotation [2018-11-14 17:23:15,585 WARN L170 areAnnotationChecker]: ULTIMATE.initFINAL has no Hoare annotation [2018-11-14 17:23:15,585 WARN L170 areAnnotationChecker]: fFINAL has no Hoare annotation [2018-11-14 17:23:15,585 WARN L170 areAnnotationChecker]: ULTIMATE.startFINAL has no Hoare annotation [2018-11-14 17:23:15,586 WARN L170 areAnnotationChecker]: L14-1 has no Hoare annotation [2018-11-14 17:23:15,586 WARN L170 areAnnotationChecker]: ULTIMATE.initEXIT has no Hoare annotation [2018-11-14 17:23:15,586 WARN L170 areAnnotationChecker]: fEXIT has no Hoare annotation [2018-11-14 17:23:15,586 WARN L170 areAnnotationChecker]: ULTIMATE.startFINAL has no Hoare annotation [2018-11-14 17:23:15,586 WARN L170 areAnnotationChecker]: L14-1 has no Hoare annotation [2018-11-14 17:23:15,587 WARN L170 areAnnotationChecker]: L16 has no Hoare annotation [2018-11-14 17:23:15,587 WARN L170 areAnnotationChecker]: L16 has no Hoare annotation [2018-11-14 17:23:15,587 WARN L170 areAnnotationChecker]: mainErr0ASSERT_VIOLATIONERROR_FUNCTION has no Hoare annotation [2018-11-14 17:23:15,587 WARN L170 areAnnotationChecker]: mainFINAL has no Hoare annotation [2018-11-14 17:23:15,587 WARN L170 areAnnotationChecker]: mainFINAL has no Hoare annotation [2018-11-14 17:23:15,588 WARN L170 areAnnotationChecker]: mainEXIT has no Hoare annotation [2018-11-14 17:23:15,588 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 17:23:15,594 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.11 05:23:15 BoogieIcfgContainer [2018-11-14 17:23:15,594 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-14 17:23:15,596 INFO L168 Benchmark]: Toolchain (without parser) took 3044.33 ms. Allocated memory was 1.5 GB in the beginning and 2.2 GB in the end (delta: 709.9 MB). Free memory was 1.4 GB in the beginning and 2.1 GB in the end (delta: -658.8 MB). Peak memory consumption was 51.1 MB. Max. memory is 7.1 GB. [2018-11-14 17:23:15,597 INFO L168 Benchmark]: CDTParser took 0.22 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 17:23:15,598 INFO L168 Benchmark]: CACSL2BoogieTranslator took 357.58 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 17:23:15,599 INFO L168 Benchmark]: Boogie Preprocessor took 49.82 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 17:23:15,599 INFO L168 Benchmark]: RCFGBuilder took 650.52 ms. Allocated memory was 1.5 GB in the beginning and 2.2 GB in the end (delta: 709.9 MB). Free memory was 1.4 GB in the beginning and 2.1 GB in the end (delta: -754.1 MB). Peak memory consumption was 26.4 MB. Max. memory is 7.1 GB. [2018-11-14 17:23:15,601 INFO L168 Benchmark]: TraceAbstraction took 1978.45 ms. Allocated memory is still 2.2 GB. Free memory was 2.1 GB in the beginning and 2.1 GB in the end (delta: 84.8 MB). Peak memory consumption was 84.8 MB. Max. memory is 7.1 GB. [2018-11-14 17:23:15,605 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 0.22 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. * CACSL2BoogieTranslator took 357.58 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 49.82 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 650.52 ms. Allocated memory was 1.5 GB in the beginning and 2.2 GB in the end (delta: 709.9 MB). Free memory was 1.4 GB in the beginning and 2.1 GB in the end (delta: -754.1 MB). Peak memory consumption was 26.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1978.45 ms. Allocated memory is still 2.2 GB. Free memory was 2.1 GB in the beginning and 2.1 GB in the end (delta: 84.8 MB). Peak memory consumption was 84.8 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 22]: 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: 8]: 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, 0.7s AutomataDifference, 0.0s DeadEndRemovalTime, 0.1s HoareAnnotationTime, HoareTripleCheckerStatistics: 12 SDtfs, 0 SDslu, 43 SDs, 0 SdLazy, 13 SolverSat, 1 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.6s 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, 20 HoareAnnotationTreeSize, 7 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 7 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 13 NumberOfCodeBlocks, 13 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 12 ConstructedInterpolants, 0 QuantifiedInterpolants, 768 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...