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/AutomizerCInline_WitnessPrinter.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/ldv-regression/test17_true-unreach-call_true-termination.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-61f4311 [2018-11-23 12:54:37,653 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-23 12:54:37,655 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-23 12:54:37,667 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-23 12:54:37,668 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-23 12:54:37,669 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-23 12:54:37,670 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-23 12:54:37,673 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-23 12:54:37,675 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-23 12:54:37,676 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-23 12:54:37,677 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-23 12:54:37,677 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-23 12:54:37,678 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-23 12:54:37,679 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-23 12:54:37,680 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-23 12:54:37,681 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-23 12:54:37,684 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-23 12:54:37,686 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-23 12:54:37,695 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-23 12:54:37,697 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-23 12:54:37,700 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-23 12:54:37,702 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-23 12:54:37,710 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-23 12:54:37,710 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-23 12:54:37,710 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-23 12:54:37,712 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-23 12:54:37,715 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-23 12:54:37,716 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-23 12:54:37,717 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-23 12:54:37,720 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-23 12:54:37,720 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-23 12:54:37,721 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-23 12:54:37,722 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-23 12:54:37,722 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-23 12:54:37,725 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-23 12:54:37,726 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-23 12:54:37,726 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 [2018-11-23 12:54:37,757 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-23 12:54:37,757 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-23 12:54:37,758 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-23 12:54:37,758 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-23 12:54:37,759 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-23 12:54:37,759 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-23 12:54:37,759 INFO L133 SettingsManager]: * Use SBE=true [2018-11-23 12:54:37,760 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-23 12:54:37,760 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-23 12:54:37,760 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-23 12:54:37,760 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-23 12:54:37,761 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-23 12:54:37,762 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-23 12:54:37,762 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-23 12:54:37,762 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-23 12:54:37,762 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-23 12:54:37,762 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-23 12:54:37,763 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-23 12:54:37,763 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-23 12:54:37,763 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-23 12:54:37,763 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-23 12:54:37,763 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-23 12:54:37,764 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-23 12:54:37,764 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-23 12:54:37,764 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-23 12:54:37,764 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-23 12:54:37,764 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-23 12:54:37,765 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-23 12:54:37,765 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-23 12:54:37,765 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-23 12:54:37,765 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-23 12:54:37,811 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-23 12:54:37,825 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-23 12:54:37,828 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-23 12:54:37,829 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-23 12:54:37,830 INFO L276 PluginConnector]: CDTParser initialized [2018-11-23 12:54:37,830 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-regression/test17_true-unreach-call_true-termination.c [2018-11-23 12:54:37,889 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dd49e71d5/af2ff9aee5c4445eac71dbce010983a0/FLAGc9f1b742a [2018-11-23 12:54:38,309 INFO L307 CDTParser]: Found 1 translation units. [2018-11-23 12:54:38,310 INFO L161 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-regression/test17_true-unreach-call_true-termination.c [2018-11-23 12:54:38,316 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dd49e71d5/af2ff9aee5c4445eac71dbce010983a0/FLAGc9f1b742a [2018-11-23 12:54:38,688 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dd49e71d5/af2ff9aee5c4445eac71dbce010983a0 [2018-11-23 12:54:38,699 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-23 12:54:38,700 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-23 12:54:38,701 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-23 12:54:38,701 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-23 12:54:38,706 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-23 12:54:38,707 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 12:54:38" (1/1) ... [2018-11-23 12:54:38,710 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4ea32f70 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:54:38, skipping insertion in model container [2018-11-23 12:54:38,711 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 12:54:38" (1/1) ... [2018-11-23 12:54:38,722 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-23 12:54:38,748 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-23 12:54:39,000 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 12:54:39,006 INFO L191 MainTranslator]: Completed pre-run [2018-11-23 12:54:39,022 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 12:54:39,051 INFO L195 MainTranslator]: Completed translation [2018-11-23 12:54:39,051 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:54:39 WrapperNode [2018-11-23 12:54:39,052 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-23 12:54:39,053 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-23 12:54:39,053 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-23 12:54:39,053 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-23 12:54:39,063 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:54:39" (1/1) ... [2018-11-23 12:54:39,072 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:54:39" (1/1) ... [2018-11-23 12:54:39,080 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-23 12:54:39,081 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-23 12:54:39,081 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-23 12:54:39,081 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-23 12:54:39,091 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:54:39" (1/1) ... [2018-11-23 12:54:39,091 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:54:39" (1/1) ... [2018-11-23 12:54:39,092 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:54:39" (1/1) ... [2018-11-23 12:54:39,093 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:54:39" (1/1) ... [2018-11-23 12:54:39,099 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:54:39" (1/1) ... [2018-11-23 12:54:39,101 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:54:39" (1/1) ... [2018-11-23 12:54:39,102 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:54:39" (1/1) ... [2018-11-23 12:54:39,104 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-23 12:54:39,104 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-23 12:54:39,105 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-23 12:54:39,105 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-23 12:54:39,106 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:54:39" (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 [2018-11-23 12:54:39,232 INFO L130 BoogieDeclarations]: Found specification of procedure equal [2018-11-23 12:54:39,232 INFO L138 BoogieDeclarations]: Found implementation of procedure equal [2018-11-23 12:54:39,233 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-23 12:54:39,233 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-23 12:54:39,233 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-23 12:54:39,233 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-23 12:54:39,233 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-23 12:54:39,233 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-23 12:54:39,233 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-23 12:54:39,234 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2018-11-23 12:54:39,657 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-23 12:54:39,657 INFO L280 CfgBuilder]: Removed 0 assue(true) statements. [2018-11-23 12:54:39,658 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 12:54:39 BoogieIcfgContainer [2018-11-23 12:54:39,658 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-23 12:54:39,660 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-23 12:54:39,660 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-23 12:54:39,663 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-23 12:54:39,664 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 12:54:38" (1/3) ... [2018-11-23 12:54:39,665 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4985c303 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 12:54:39, skipping insertion in model container [2018-11-23 12:54:39,665 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:54:39" (2/3) ... [2018-11-23 12:54:39,665 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4985c303 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 12:54:39, skipping insertion in model container [2018-11-23 12:54:39,665 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 12:54:39" (3/3) ... [2018-11-23 12:54:39,667 INFO L112 eAbstractionObserver]: Analyzing ICFG test17_true-unreach-call_true-termination.c [2018-11-23 12:54:39,679 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-23 12:54:39,687 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-23 12:54:39,703 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-23 12:54:39,739 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-23 12:54:39,740 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-23 12:54:39,741 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-23 12:54:39,741 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-23 12:54:39,742 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-23 12:54:39,742 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-23 12:54:39,743 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-23 12:54:39,743 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-23 12:54:39,743 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-23 12:54:39,763 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states. [2018-11-23 12:54:39,770 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-11-23 12:54:39,770 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 12:54:39,771 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 12:54:39,773 INFO L423 AbstractCegarLoop]: === Iteration 1 === [equalErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 12:54:39,779 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 12:54:39,780 INFO L82 PathProgramCache]: Analyzing trace with hash -1534444928, now seen corresponding path program 1 times [2018-11-23 12:54:39,781 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 12:54:39,782 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 12:54:39,826 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 12:54:39,826 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 12:54:39,826 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 12:54:39,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 12:54:40,070 INFO L256 TraceCheckUtils]: 0: Hoare triple {20#true} call ULTIMATE.init(); {20#true} is VALID [2018-11-23 12:54:40,074 INFO L273 TraceCheckUtils]: 1: Hoare triple {20#true} call ~#a~0.base, ~#a~0.offset := #Ultimate.alloc(4);call write~init~int(0, ~#a~0.base, ~#a~0.offset, 4);~b~0 := 0; {20#true} is VALID [2018-11-23 12:54:40,075 INFO L273 TraceCheckUtils]: 2: Hoare triple {20#true} assume true; {20#true} is VALID [2018-11-23 12:54:40,076 INFO L268 TraceCheckUtils]: 3: Hoare quadruple {20#true} {20#true} #18#return; {20#true} is VALID [2018-11-23 12:54:40,076 INFO L256 TraceCheckUtils]: 4: Hoare triple {20#true} call #t~ret0 := main(); {20#true} is VALID [2018-11-23 12:54:40,090 INFO L256 TraceCheckUtils]: 5: Hoare triple {20#true} call equal(~#a~0.base, ~#a~0.offset, ~#a~0.base, ~#a~0.offset); {22#(and (= |equal_#in~a.offset| |equal_#in~b.offset|) (= |equal_#in~b.base| |equal_#in~a.base|))} is VALID [2018-11-23 12:54:40,100 INFO L273 TraceCheckUtils]: 6: Hoare triple {22#(and (= |equal_#in~a.offset| |equal_#in~b.offset|) (= |equal_#in~b.base| |equal_#in~a.base|))} ~a.base, ~a.offset := #in~a.base, #in~a.offset;~b.base, ~b.offset := #in~b.base, #in~b.offset; {23#(and (= equal_~b.offset equal_~a.offset) (= equal_~a.base equal_~b.base))} is VALID [2018-11-23 12:54:40,103 INFO L273 TraceCheckUtils]: 7: Hoare triple {23#(and (= equal_~b.offset equal_~a.offset) (= equal_~a.base equal_~b.base))} assume ~a.base != ~b.base || ~a.offset != ~b.offset; {21#false} is VALID [2018-11-23 12:54:40,103 INFO L273 TraceCheckUtils]: 8: Hoare triple {21#false} assume !false; {21#false} is VALID [2018-11-23 12:54:40,106 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 12:54:40,108 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 12:54:40,108 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-23 12:54:40,112 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2018-11-23 12:54:40,115 INFO L84 Accepts]: Finished accepts. word is accepted. [2018-11-23 12:54:40,118 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 4 states. [2018-11-23 12:54:40,167 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 9 edges. 9 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2018-11-23 12:54:40,167 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-23 12:54:40,177 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-23 12:54:40,178 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-11-23 12:54:40,180 INFO L87 Difference]: Start difference. First operand 17 states. Second operand 4 states. [2018-11-23 12:54:40,866 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 12:54:40,866 INFO L93 Difference]: Finished difference Result 24 states and 23 transitions. [2018-11-23 12:54:40,867 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-23 12:54:40,867 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2018-11-23 12:54:40,867 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 12:54:40,869 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2018-11-23 12:54:40,882 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 23 transitions. [2018-11-23 12:54:40,882 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2018-11-23 12:54:40,886 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 23 transitions. [2018-11-23 12:54:40,887 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 4 states and 23 transitions. [2018-11-23 12:54:40,955 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 23 edges. 23 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2018-11-23 12:54:40,962 INFO L225 Difference]: With dead ends: 24 [2018-11-23 12:54:40,962 INFO L226 Difference]: Without dead ends: 0 [2018-11-23 12:54:40,965 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-11-23 12:54:40,984 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-23 12:54:40,991 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-23 12:54:40,992 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2018-11-23 12:54:40,992 INFO L82 GeneralOperation]: Start isEquivalent. First operand 0 states. Second operand 0 states. [2018-11-23 12:54:40,993 INFO L74 IsIncluded]: Start isIncluded. First operand 0 states. Second operand 0 states. [2018-11-23 12:54:40,993 INFO L87 Difference]: Start difference. First operand 0 states. Second operand 0 states. [2018-11-23 12:54:40,994 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 12:54:40,994 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2018-11-23 12:54:40,994 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-23 12:54:40,994 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-23 12:54:40,995 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2018-11-23 12:54:40,995 INFO L74 IsIncluded]: Start isIncluded. First operand 0 states. Second operand 0 states. [2018-11-23 12:54:40,995 INFO L87 Difference]: Start difference. First operand 0 states. Second operand 0 states. [2018-11-23 12:54:40,995 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 12:54:40,996 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2018-11-23 12:54:40,996 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-23 12:54:40,996 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-23 12:54:40,996 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2018-11-23 12:54:40,996 INFO L88 GeneralOperation]: Finished isEquivalent. [2018-11-23 12:54:40,997 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2018-11-23 12:54:40,997 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-23 12:54:40,998 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-23 12:54:41,000 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 9 [2018-11-23 12:54:41,001 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 12:54:41,001 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-23 12:54:41,002 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-23 12:54:41,002 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-23 12:54:41,002 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-23 12:54:41,009 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-23 12:54:41,136 INFO L448 ceAbstractionStarter]: For program point equalEXIT(lines 4 12) no Hoare annotation was computed. [2018-11-23 12:54:41,137 INFO L451 ceAbstractionStarter]: At program point equalENTRY(lines 4 12) the Hoare annotation is: true [2018-11-23 12:54:41,137 INFO L448 ceAbstractionStarter]: For program point equalFINAL(lines 4 12) no Hoare annotation was computed. [2018-11-23 12:54:41,137 INFO L444 ceAbstractionStarter]: At program point L6(lines 4 12) the Hoare annotation is: (or (not (= |equal_#in~b.base| |equal_#in~a.base|)) (not (= |equal_#in~a.offset| |equal_#in~b.offset|))) [2018-11-23 12:54:41,137 INFO L448 ceAbstractionStarter]: For program point L5(lines 5 7) no Hoare annotation was computed. [2018-11-23 12:54:41,137 INFO L448 ceAbstractionStarter]: For program point equalErr0ASSERT_VIOLATIONERROR_FUNCTION(line 10) no Hoare annotation was computed. [2018-11-23 12:54:41,138 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-11-23 12:54:41,138 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2018-11-23 12:54:41,138 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-11-23 12:54:41,138 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-11-23 12:54:41,138 INFO L451 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-11-23 12:54:41,138 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-11-23 12:54:41,139 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-11-23 12:54:41,139 INFO L448 ceAbstractionStarter]: For program point L17(line 17) no Hoare annotation was computed. [2018-11-23 12:54:41,139 INFO L451 ceAbstractionStarter]: At program point mainENTRY(lines 16 19) the Hoare annotation is: true [2018-11-23 12:54:41,139 INFO L448 ceAbstractionStarter]: For program point mainFINAL(lines 16 19) no Hoare annotation was computed. [2018-11-23 12:54:41,139 INFO L448 ceAbstractionStarter]: For program point mainEXIT(lines 16 19) no Hoare annotation was computed. [2018-11-23 12:54:41,142 WARN L170 areAnnotationChecker]: L5 has no Hoare annotation [2018-11-23 12:54:41,142 WARN L170 areAnnotationChecker]: ULTIMATE.initFINAL has no Hoare annotation [2018-11-23 12:54:41,142 WARN L170 areAnnotationChecker]: L17 has no Hoare annotation [2018-11-23 12:54:41,142 WARN L170 areAnnotationChecker]: L5 has no Hoare annotation [2018-11-23 12:54:41,142 WARN L170 areAnnotationChecker]: L5 has no Hoare annotation [2018-11-23 12:54:41,143 WARN L170 areAnnotationChecker]: ULTIMATE.initFINAL has no Hoare annotation [2018-11-23 12:54:41,143 WARN L170 areAnnotationChecker]: ULTIMATE.startFINAL has no Hoare annotation [2018-11-23 12:54:41,143 WARN L170 areAnnotationChecker]: L17 has no Hoare annotation [2018-11-23 12:54:41,144 WARN L170 areAnnotationChecker]: equalErr0ASSERT_VIOLATIONERROR_FUNCTION has no Hoare annotation [2018-11-23 12:54:41,144 WARN L170 areAnnotationChecker]: equalFINAL has no Hoare annotation [2018-11-23 12:54:41,144 WARN L170 areAnnotationChecker]: equalFINAL has no Hoare annotation [2018-11-23 12:54:41,144 WARN L170 areAnnotationChecker]: ULTIMATE.initEXIT has no Hoare annotation [2018-11-23 12:54:41,144 WARN L170 areAnnotationChecker]: ULTIMATE.startFINAL has no Hoare annotation [2018-11-23 12:54:41,144 WARN L170 areAnnotationChecker]: mainFINAL has no Hoare annotation [2018-11-23 12:54:41,144 WARN L170 areAnnotationChecker]: equalEXIT has no Hoare annotation [2018-11-23 12:54:41,145 WARN L170 areAnnotationChecker]: mainEXIT has no Hoare annotation [2018-11-23 12:54:41,148 INFO L163 areAnnotationChecker]: CFG has 3 edges. 3 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. 0 times interpolants missing. [2018-11-23 12:54:41,169 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 12:54:41 BoogieIcfgContainer [2018-11-23 12:54:41,169 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-23 12:54:41,169 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-23 12:54:41,169 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-23 12:54:41,170 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-23 12:54:41,171 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 12:54:39" (3/4) ... [2018-11-23 12:54:41,175 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-23 12:54:41,181 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure equal [2018-11-23 12:54:41,181 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-11-23 12:54:41,182 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-11-23 12:54:41,185 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2018-11-23 12:54:41,185 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2018-11-23 12:54:41,186 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-11-23 12:54:41,226 INFO L145 WitnessManager]: Wrote witness to /storage/repos/svcomp/c/ldv-regression/test17_true-unreach-call_true-termination.c-witness.graphml [2018-11-23 12:54:41,226 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-23 12:54:41,228 INFO L168 Benchmark]: Toolchain (without parser) took 2528.17 ms. Allocated memory was 1.5 GB in the beginning and 2.2 GB in the end (delta: 699.9 MB). Free memory was 1.4 GB in the beginning and 2.1 GB in the end (delta: -674.3 MB). Peak memory consumption was 25.6 MB. Max. memory is 7.1 GB. [2018-11-23 12:54:41,230 INFO L168 Benchmark]: CDTParser took 0.19 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. [2018-11-23 12:54:41,230 INFO L168 Benchmark]: CACSL2BoogieTranslator took 350.75 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. [2018-11-23 12:54:41,231 INFO L168 Benchmark]: Boogie Procedure Inliner took 28.13 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. [2018-11-23 12:54:41,232 INFO L168 Benchmark]: Boogie Preprocessor took 23.26 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. [2018-11-23 12:54:41,233 INFO L168 Benchmark]: RCFGBuilder took 553.62 ms. Allocated memory was 1.5 GB in the beginning and 2.2 GB in the end (delta: 699.9 MB). Free memory was 1.4 GB in the beginning and 2.1 GB in the end (delta: -739.0 MB). Peak memory consumption was 26.3 MB. Max. memory is 7.1 GB. [2018-11-23 12:54:41,234 INFO L168 Benchmark]: TraceAbstraction took 1509.09 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: 54.1 MB). Peak memory consumption was 54.1 MB. Max. memory is 7.1 GB. [2018-11-23 12:54:41,234 INFO L168 Benchmark]: Witness Printer took 56.91 ms. Allocated memory is still 2.2 GB. Free memory is still 2.1 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-11-23 12:54:41,239 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 0.19 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 350.75 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 Procedure Inliner took 28.13 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. * Boogie Preprocessor took 23.26 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 553.62 ms. Allocated memory was 1.5 GB in the beginning and 2.2 GB in the end (delta: 699.9 MB). Free memory was 1.4 GB in the beginning and 2.1 GB in the end (delta: -739.0 MB). Peak memory consumption was 26.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1509.09 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: 54.1 MB). Peak memory consumption was 54.1 MB. Max. memory is 7.1 GB. * Witness Printer took 56.91 ms. Allocated memory is still 2.2 GB. Free memory is still 2.1 GB. There was no memory consumed. Max. memory is 7.1 GB. * 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 Derived loop invariant: !(b == a) || !(a == b) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 17 locations, 1 error locations. SAFE Result, 1.4s OverallTime, 1 OverallIterations, 1 TraceHistogramMax, 0.7s AutomataDifference, 0.0s DeadEndRemovalTime, 0.1s HoareAnnotationTime, HoareTripleCheckerStatistics: 11 SDtfs, 5 SDslu, 19 SDs, 0 SdLazy, 5 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=17occurred 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, 6 LocationsWithAnnotation, 6 PreInvPairs, 6 NumberOfFragments, 14 HoareAnnotationTreeSize, 6 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 6 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 9 NumberOfCodeBlocks, 9 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 8 ConstructedInterpolants, 0 QuantifiedInterpolants, 160 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...