./Ultimate.py --spec /storage/repos/svcomp/c/properties/unreach-call.prp --file /storage/repos/svcomp/c/ldv-regression/test_union_true-termination.c_true-unreach-call.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 91b1670e Calling Ultimate with: java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -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 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/svcomp/c/ldv-regression/test_union_true-termination.c_true-unreach-call.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash d175f2e77aebe63dd05869db0ed17fb7b8bf3540 ........................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-91b1670 [2018-11-28 18:07:49,889 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-28 18:07:49,891 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-28 18:07:49,903 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-28 18:07:49,903 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-28 18:07:49,904 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-28 18:07:49,906 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-28 18:07:49,907 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-28 18:07:49,909 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-28 18:07:49,910 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-28 18:07:49,911 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-28 18:07:49,913 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-28 18:07:49,914 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-28 18:07:49,917 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-28 18:07:49,919 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-28 18:07:49,923 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-28 18:07:49,923 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-28 18:07:49,925 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-28 18:07:49,934 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-28 18:07:49,938 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-28 18:07:49,939 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-28 18:07:49,942 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-28 18:07:49,948 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-28 18:07:49,948 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-28 18:07:49,948 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-28 18:07:49,949 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-28 18:07:49,950 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-28 18:07:49,954 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-28 18:07:49,955 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-28 18:07:49,957 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-28 18:07:49,958 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-28 18:07:49,959 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-28 18:07:49,959 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-28 18:07:49,959 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-28 18:07:49,960 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-28 18:07:49,961 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-28 18:07:49,963 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-11-28 18:07:49,987 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-28 18:07:49,987 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-28 18:07:49,988 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-28 18:07:49,988 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-28 18:07:49,990 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-28 18:07:49,990 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-28 18:07:49,990 INFO L133 SettingsManager]: * Use SBE=true [2018-11-28 18:07:49,990 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-28 18:07:49,990 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-28 18:07:49,991 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-28 18:07:49,991 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-28 18:07:49,991 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-28 18:07:49,991 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-28 18:07:49,991 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-28 18:07:49,991 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-28 18:07:49,993 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-28 18:07:49,993 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-28 18:07:49,993 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-28 18:07:49,993 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-28 18:07:49,993 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-28 18:07:49,994 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-28 18:07:49,994 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-28 18:07:49,995 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-28 18:07:49,995 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-28 18:07:49,995 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-28 18:07:49,995 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-28 18:07:49,995 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-28 18:07:49,996 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-28 18:07:49,997 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-28 18:07:49,997 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-28 18:07:49,997 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d175f2e77aebe63dd05869db0ed17fb7b8bf3540 [2018-11-28 18:07:50,034 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-28 18:07:50,048 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-28 18:07:50,052 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-28 18:07:50,053 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-28 18:07:50,054 INFO L276 PluginConnector]: CDTParser initialized [2018-11-28 18:07:50,055 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/ldv-regression/test_union_true-termination.c_true-unreach-call.i [2018-11-28 18:07:50,121 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/af0ee532c/d953222a231f44068c68d276b728a97b/FLAGa212ca888 [2018-11-28 18:07:50,570 INFO L307 CDTParser]: Found 1 translation units. [2018-11-28 18:07:50,571 INFO L161 CDTParser]: Scanning /storage/repos/svcomp/c/ldv-regression/test_union_true-termination.c_true-unreach-call.i [2018-11-28 18:07:50,577 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/af0ee532c/d953222a231f44068c68d276b728a97b/FLAGa212ca888 [2018-11-28 18:07:50,954 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/af0ee532c/d953222a231f44068c68d276b728a97b [2018-11-28 18:07:50,958 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-28 18:07:50,959 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-28 18:07:50,960 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-28 18:07:50,961 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-28 18:07:50,964 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-28 18:07:50,965 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 06:07:50" (1/1) ... [2018-11-28 18:07:50,968 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@fbc0696 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:07:50, skipping insertion in model container [2018-11-28 18:07:50,969 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 06:07:50" (1/1) ... [2018-11-28 18:07:50,976 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-28 18:07:50,994 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-28 18:07:51,161 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 18:07:51,167 INFO L191 MainTranslator]: Completed pre-run [2018-11-28 18:07:51,190 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 18:07:51,214 INFO L195 MainTranslator]: Completed translation [2018-11-28 18:07:51,215 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:07:51 WrapperNode [2018-11-28 18:07:51,215 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-28 18:07:51,216 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-28 18:07:51,216 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-28 18:07:51,216 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-28 18:07:51,226 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:07:51" (1/1) ... [2018-11-28 18:07:51,235 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:07:51" (1/1) ... [2018-11-28 18:07:51,244 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-28 18:07:51,244 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-28 18:07:51,244 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-28 18:07:51,244 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-28 18:07:51,256 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:07:51" (1/1) ... [2018-11-28 18:07:51,256 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:07:51" (1/1) ... [2018-11-28 18:07:51,257 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:07:51" (1/1) ... [2018-11-28 18:07:51,258 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:07:51" (1/1) ... [2018-11-28 18:07:51,265 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:07:51" (1/1) ... [2018-11-28 18:07:51,268 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:07:51" (1/1) ... [2018-11-28 18:07:51,269 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:07:51" (1/1) ... [2018-11-28 18:07:51,270 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-28 18:07:51,271 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-28 18:07:51,271 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-28 18:07:51,271 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-28 18:07:51,272 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:07:51" (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 [2018-11-28 18:07:51,392 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-11-28 18:07:51,393 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-28 18:07:51,393 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-28 18:07:51,393 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-28 18:07:51,393 INFO L130 BoogieDeclarations]: Found specification of procedure __blast_assert [2018-11-28 18:07:51,393 INFO L138 BoogieDeclarations]: Found implementation of procedure __blast_assert [2018-11-28 18:07:51,393 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-28 18:07:51,394 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-28 18:07:51,394 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-11-28 18:07:51,394 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-28 18:07:51,394 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-28 18:07:51,394 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-28 18:07:51,556 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-28 18:07:51,556 INFO L280 CfgBuilder]: Removed 0 assue(true) statements. [2018-11-28 18:07:51,557 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 06:07:51 BoogieIcfgContainer [2018-11-28 18:07:51,557 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-28 18:07:51,558 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-28 18:07:51,558 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-28 18:07:51,561 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-28 18:07:51,562 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 06:07:50" (1/3) ... [2018-11-28 18:07:51,562 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@568de58f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 06:07:51, skipping insertion in model container [2018-11-28 18:07:51,562 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:07:51" (2/3) ... [2018-11-28 18:07:51,563 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@568de58f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 06:07:51, skipping insertion in model container [2018-11-28 18:07:51,563 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 06:07:51" (3/3) ... [2018-11-28 18:07:51,565 INFO L112 eAbstractionObserver]: Analyzing ICFG test_union_true-termination.c_true-unreach-call.i [2018-11-28 18:07:51,582 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-28 18:07:51,593 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-28 18:07:51,613 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-28 18:07:51,655 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-28 18:07:51,656 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-28 18:07:51,656 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-28 18:07:51,656 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-28 18:07:51,656 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-28 18:07:51,657 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-28 18:07:51,657 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-28 18:07:51,657 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-28 18:07:51,657 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-28 18:07:51,679 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states. [2018-11-28 18:07:51,686 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-11-28 18:07:51,686 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 18:07:51,687 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 18:07:51,689 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 18:07:51,694 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 18:07:51,694 INFO L82 PathProgramCache]: Analyzing trace with hash -1215743292, now seen corresponding path program 1 times [2018-11-28 18:07:51,696 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 18:07:51,697 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 18:07:51,743 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 18:07:51,743 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 18:07:51,743 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 18:07:51,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 18:07:51,858 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 18:07:51,860 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 18:07:51,860 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-28 18:07:51,864 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-28 18:07:51,876 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-28 18:07:51,876 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-28 18:07:51,879 INFO L87 Difference]: Start difference. First operand 17 states. Second operand 3 states. [2018-11-28 18:07:51,925 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 18:07:51,926 INFO L93 Difference]: Finished difference Result 22 states and 21 transitions. [2018-11-28 18:07:51,926 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-28 18:07:51,928 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2018-11-28 18:07:51,929 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 18:07:51,936 INFO L225 Difference]: With dead ends: 22 [2018-11-28 18:07:51,937 INFO L226 Difference]: Without dead ends: 0 [2018-11-28 18:07:51,940 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-28 18:07:51,960 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-28 18:07:51,967 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-28 18:07:51,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-28 18:07:51,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-28 18:07:51,972 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 9 [2018-11-28 18:07:51,972 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 18:07:51,972 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-28 18:07:51,973 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-28 18:07:51,973 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-28 18:07:51,973 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-28 18:07:51,979 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-28 18:07:52,102 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-11-28 18:07:52,103 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2018-11-28 18:07:52,103 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-11-28 18:07:52,104 INFO L448 ceAbstractionStarter]: For program point __blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 6) no Hoare annotation was computed. [2018-11-28 18:07:52,104 INFO L448 ceAbstractionStarter]: For program point __blast_assertEXIT(lines 4 7) no Hoare annotation was computed. [2018-11-28 18:07:52,104 INFO L448 ceAbstractionStarter]: For program point __blast_assertFINAL(lines 4 7) no Hoare annotation was computed. [2018-11-28 18:07:52,104 INFO L451 ceAbstractionStarter]: At program point __blast_assertENTRY(lines 4 7) the Hoare annotation is: true [2018-11-28 18:07:52,104 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-11-28 18:07:52,105 INFO L451 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-11-28 18:07:52,105 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-11-28 18:07:52,105 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-11-28 18:07:52,105 INFO L451 ceAbstractionStarter]: At program point mainENTRY(lines 23 31) the Hoare annotation is: true [2018-11-28 18:07:52,105 INFO L448 ceAbstractionStarter]: For program point L29(line 29) no Hoare annotation was computed. [2018-11-28 18:07:52,105 INFO L448 ceAbstractionStarter]: For program point mainFINAL(lines 23 31) no Hoare annotation was computed. [2018-11-28 18:07:52,108 INFO L444 ceAbstractionStarter]: At program point L29-2(line 29) the Hoare annotation is: false [2018-11-28 18:07:52,108 INFO L448 ceAbstractionStarter]: For program point L29-3(line 29) no Hoare annotation was computed. [2018-11-28 18:07:52,108 INFO L448 ceAbstractionStarter]: For program point mainEXIT(lines 23 31) no Hoare annotation was computed. [2018-11-28 18:07:52,115 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 06:07:52 BoogieIcfgContainer [2018-11-28 18:07:52,115 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-28 18:07:52,115 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-28 18:07:52,116 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-28 18:07:52,118 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-28 18:07:52,119 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 06:07:51" (3/4) ... [2018-11-28 18:07:52,126 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-28 18:07:52,144 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-11-28 18:07:52,145 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __blast_assert [2018-11-28 18:07:52,150 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-11-28 18:07:52,158 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2018-11-28 18:07:52,162 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2018-11-28 18:07:52,162 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2018-11-28 18:07:52,265 INFO L145 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2018-11-28 18:07:52,266 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-28 18:07:52,267 INFO L168 Benchmark]: Toolchain (without parser) took 1308.35 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 137.9 MB). Free memory was 943.3 MB in the beginning and 1.1 GB in the end (delta: -145.7 MB). There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 18:07:52,269 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 972.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 18:07:52,270 INFO L168 Benchmark]: CACSL2BoogieTranslator took 255.03 ms. Allocated memory is still 1.0 GB. Free memory was 943.3 MB in the beginning and 932.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-28 18:07:52,271 INFO L168 Benchmark]: Boogie Procedure Inliner took 27.85 ms. Allocated memory is still 1.0 GB. Free memory is still 932.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 18:07:52,272 INFO L168 Benchmark]: Boogie Preprocessor took 26.49 ms. Allocated memory is still 1.0 GB. Free memory is still 932.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 18:07:52,272 INFO L168 Benchmark]: RCFGBuilder took 286.30 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 137.9 MB). Free memory was 932.6 MB in the beginning and 1.1 GB in the end (delta: -183.1 MB). Peak memory consumption was 18.4 MB. Max. memory is 11.5 GB. [2018-11-28 18:07:52,273 INFO L168 Benchmark]: TraceAbstraction took 557.17 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 26.6 MB). Peak memory consumption was 26.6 MB. Max. memory is 11.5 GB. [2018-11-28 18:07:52,274 INFO L168 Benchmark]: Witness Printer took 150.33 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 18:07:52,280 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 972.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 255.03 ms. Allocated memory is still 1.0 GB. Free memory was 943.3 MB in the beginning and 932.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 27.85 ms. Allocated memory is still 1.0 GB. Free memory is still 932.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 26.49 ms. Allocated memory is still 1.0 GB. Free memory is still 932.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 286.30 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 137.9 MB). Free memory was 932.6 MB in the beginning and 1.1 GB in the end (delta: -183.1 MB). Peak memory consumption was 18.4 MB. Max. memory is 11.5 GB. * TraceAbstraction took 557.17 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 26.6 MB). Peak memory consumption was 26.6 MB. Max. memory is 11.5 GB. * Witness Printer took 150.33 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 6]: 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 - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 17 locations, 1 error locations. SAFE Result, 0.4s OverallTime, 1 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.1s HoareAnnotationTime, HoareTripleCheckerStatistics: 10 SDtfs, 1 SDslu, 8 SDs, 0 SdLazy, 2 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s 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, 6 HoareAnnotationTreeSize, 6 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 6 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 9 NumberOfCodeBlocks, 9 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 8 ConstructedInterpolants, 0 QuantifiedInterpolants, 80 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...