./Ultimate.py --spec /storage/repos/svcomp/c/properties/unreach-call.prp --file /storage/repos/svcomp/c/ldv-regression/test30_false-unreach-call_true-termination.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 2e94e6aa 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/test30_false-unreach-call_true-termination.c -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 dbf4229fc71e086a20df7dc549a8cc43d35a83d5 ...................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.1.24-2e94e6a [2018-12-31 04:23:26,211 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-31 04:23:26,213 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-31 04:23:26,227 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-31 04:23:26,228 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-31 04:23:26,230 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-31 04:23:26,232 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-31 04:23:26,235 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-31 04:23:26,237 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-31 04:23:26,238 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-31 04:23:26,246 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-31 04:23:26,249 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-31 04:23:26,250 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-31 04:23:26,253 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-31 04:23:26,257 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-31 04:23:26,258 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-31 04:23:26,261 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-31 04:23:26,263 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-31 04:23:26,267 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-31 04:23:26,270 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-31 04:23:26,272 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-31 04:23:26,275 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-31 04:23:26,277 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-31 04:23:26,278 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-31 04:23:26,278 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-31 04:23:26,279 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-31 04:23:26,280 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-31 04:23:26,281 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-31 04:23:26,282 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-31 04:23:26,283 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-31 04:23:26,283 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-31 04:23:26,284 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-31 04:23:26,284 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-31 04:23:26,284 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-31 04:23:26,285 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-31 04:23:26,287 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-31 04:23:26,287 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-12-31 04:23:26,302 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-31 04:23:26,302 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-31 04:23:26,303 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-12-31 04:23:26,303 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-12-31 04:23:26,303 INFO L133 SettingsManager]: * Use SBE=true [2018-12-31 04:23:26,304 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-31 04:23:26,304 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-31 04:23:26,305 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-31 04:23:26,305 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-31 04:23:26,305 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-31 04:23:26,305 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-31 04:23:26,305 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-31 04:23:26,305 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-31 04:23:26,306 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-31 04:23:26,307 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-31 04:23:26,307 INFO L133 SettingsManager]: * Use constant arrays=true [2018-12-31 04:23:26,307 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-31 04:23:26,307 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-31 04:23:26,307 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-31 04:23:26,307 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-31 04:23:26,308 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-31 04:23:26,308 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-31 04:23:26,308 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-31 04:23:26,308 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-31 04:23:26,308 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-31 04:23:26,310 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-12-31 04:23:26,310 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-31 04:23:26,310 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-12-31 04:23:26,311 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 -> dbf4229fc71e086a20df7dc549a8cc43d35a83d5 [2018-12-31 04:23:26,346 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-31 04:23:26,358 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-31 04:23:26,362 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-31 04:23:26,363 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-31 04:23:26,364 INFO L276 PluginConnector]: CDTParser initialized [2018-12-31 04:23:26,365 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/ldv-regression/test30_false-unreach-call_true-termination.c [2018-12-31 04:23:26,433 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2fa98f51a/019d66096f1d4e289d2f66ef464dd5cf/FLAG29060ff63 [2018-12-31 04:23:26,907 INFO L307 CDTParser]: Found 1 translation units. [2018-12-31 04:23:26,909 INFO L161 CDTParser]: Scanning /storage/repos/svcomp/c/ldv-regression/test30_false-unreach-call_true-termination.c [2018-12-31 04:23:26,915 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2fa98f51a/019d66096f1d4e289d2f66ef464dd5cf/FLAG29060ff63 [2018-12-31 04:23:27,271 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2fa98f51a/019d66096f1d4e289d2f66ef464dd5cf [2018-12-31 04:23:27,276 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-31 04:23:27,277 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-31 04:23:27,279 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-31 04:23:27,279 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-31 04:23:27,283 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-31 04:23:27,286 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.12 04:23:27" (1/1) ... [2018-12-31 04:23:27,289 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6cb3b9ec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 04:23:27, skipping insertion in model container [2018-12-31 04:23:27,290 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.12 04:23:27" (1/1) ... [2018-12-31 04:23:27,298 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-31 04:23:27,318 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-31 04:23:27,564 INFO L204 PostProcessor]: Analyzing one entry point: main [2018-12-31 04:23:27,592 INFO L191 MainTranslator]: Completed pre-run [2018-12-31 04:23:27,616 INFO L204 PostProcessor]: Analyzing one entry point: main [2018-12-31 04:23:27,643 INFO L195 MainTranslator]: Completed translation [2018-12-31 04:23:27,643 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 04:23:27 WrapperNode [2018-12-31 04:23:27,643 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-31 04:23:27,644 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-31 04:23:27,644 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-31 04:23:27,645 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-31 04:23:27,656 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 04:23:27" (1/1) ... [2018-12-31 04:23:27,667 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 04:23:27" (1/1) ... [2018-12-31 04:23:27,694 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-31 04:23:27,694 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-31 04:23:27,694 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-31 04:23:27,695 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-31 04:23:27,706 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 04:23:27" (1/1) ... [2018-12-31 04:23:27,706 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 04:23:27" (1/1) ... [2018-12-31 04:23:27,708 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 04:23:27" (1/1) ... [2018-12-31 04:23:27,708 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 04:23:27" (1/1) ... [2018-12-31 04:23:27,720 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 04:23:27" (1/1) ... [2018-12-31 04:23:27,722 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 04:23:27" (1/1) ... [2018-12-31 04:23:27,724 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 04:23:27" (1/1) ... [2018-12-31 04:23:27,727 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-31 04:23:27,727 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-31 04:23:27,727 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-31 04:23:27,728 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-31 04:23:27,728 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 04:23:27" (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 [2018-12-31 04:23:27,862 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2018-12-31 04:23:27,862 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2018-12-31 04:23:27,862 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2018-12-31 04:23:27,862 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2018-12-31 04:23:27,862 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-12-31 04:23:27,862 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-31 04:23:27,863 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-31 04:23:27,863 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-12-31 04:23:28,189 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-31 04:23:28,190 INFO L280 CfgBuilder]: Removed 8 assue(true) statements. [2018-12-31 04:23:28,190 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.12 04:23:28 BoogieIcfgContainer [2018-12-31 04:23:28,190 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-31 04:23:28,191 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-31 04:23:28,191 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-31 04:23:28,204 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-31 04:23:28,204 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.12 04:23:27" (1/3) ... [2018-12-31 04:23:28,205 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f165cb0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.12 04:23:28, skipping insertion in model container [2018-12-31 04:23:28,205 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 04:23:27" (2/3) ... [2018-12-31 04:23:28,206 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f165cb0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.12 04:23:28, skipping insertion in model container [2018-12-31 04:23:28,209 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.12 04:23:28" (3/3) ... [2018-12-31 04:23:28,214 INFO L112 eAbstractionObserver]: Analyzing ICFG test30_false-unreach-call_true-termination.c [2018-12-31 04:23:28,235 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-31 04:23:28,254 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-12-31 04:23:28,275 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-12-31 04:23:28,308 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-12-31 04:23:28,308 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-31 04:23:28,309 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-31 04:23:28,309 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-31 04:23:28,309 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-31 04:23:28,309 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-31 04:23:28,309 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-31 04:23:28,310 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-31 04:23:28,310 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-31 04:23:28,323 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states. [2018-12-31 04:23:28,329 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2018-12-31 04:23:28,330 INFO L394 BasicCegarLoop]: Found error trace [2018-12-31 04:23:28,331 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2018-12-31 04:23:28,333 INFO L423 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-31 04:23:28,339 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2018-12-31 04:23:28,340 INFO L82 PathProgramCache]: Analyzing trace with hash 889475945, now seen corresponding path program 1 times [2018-12-31 04:23:28,342 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-31 04:23:28,343 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-31 04:23:28,393 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-31 04:23:28,393 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-31 04:23:28,393 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-31 04:23:28,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-31 04:23:28,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-31 04:23:28,585 INFO L469 BasicCegarLoop]: Counterexample might be feasible [2018-12-31 04:23:28,623 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 31.12 04:23:28 BoogieIcfgContainer [2018-12-31 04:23:28,623 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-31 04:23:28,624 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-31 04:23:28,624 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-31 04:23:28,624 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-31 04:23:28,625 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.12 04:23:28" (3/4) ... [2018-12-31 04:23:28,627 INFO L138 WitnessPrinter]: Generating witness for reachability counterexample [2018-12-31 04:23:28,677 INFO L145 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2018-12-31 04:23:28,678 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-31 04:23:28,679 INFO L168 Benchmark]: Toolchain (without parser) took 1402.26 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 148.4 MB). Free memory was 947.3 MB in the beginning and 1.1 GB in the end (delta: -156.6 MB). There was no memory consumed. Max. memory is 11.5 GB. [2018-12-31 04:23:28,681 INFO L168 Benchmark]: CDTParser took 0.17 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. [2018-12-31 04:23:28,681 INFO L168 Benchmark]: CACSL2BoogieTranslator took 365.13 ms. Allocated memory is still 1.0 GB. Free memory was 947.3 MB in the beginning and 936.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-12-31 04:23:28,682 INFO L168 Benchmark]: Boogie Procedure Inliner took 49.80 ms. Allocated memory is still 1.0 GB. Free memory is still 936.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-31 04:23:28,687 INFO L168 Benchmark]: Boogie Preprocessor took 32.53 ms. Allocated memory is still 1.0 GB. Free memory was 936.6 MB in the beginning and 931.2 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-12-31 04:23:28,688 INFO L168 Benchmark]: RCFGBuilder took 463.16 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 148.4 MB). Free memory was 931.2 MB in the beginning and 1.1 GB in the end (delta: -192.4 MB). Peak memory consumption was 13.6 MB. Max. memory is 11.5 GB. [2018-12-31 04:23:28,690 INFO L168 Benchmark]: TraceAbstraction took 432.21 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: 19.8 MB). Peak memory consumption was 19.8 MB. Max. memory is 11.5 GB. [2018-12-31 04:23:28,691 INFO L168 Benchmark]: Witness Printer took 53.89 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. [2018-12-31 04:23:28,697 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 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 365.13 ms. Allocated memory is still 1.0 GB. Free memory was 947.3 MB in the beginning and 936.6 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 49.80 ms. Allocated memory is still 1.0 GB. Free memory is still 936.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 32.53 ms. Allocated memory is still 1.0 GB. Free memory was 936.6 MB in the beginning and 931.2 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 463.16 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 148.4 MB). Free memory was 931.2 MB in the beginning and 1.1 GB in the end (delta: -192.4 MB). Peak memory consumption was 13.6 MB. Max. memory is 11.5 GB. * TraceAbstraction took 432.21 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: 19.8 MB). Peak memory consumption was 19.8 MB. Max. memory is 11.5 GB. * Witness Printer took 53.89 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: - CounterExampleResult [Line: 31]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L3] int a = 1, b; [L5-L7] struct dummy { int *a, *b; } global = {&a, &b}; VAL [a={1:0}, b={2:0}, global={3:0}] [L21] struct dummy *pd = &global; [L16] \read(**pb) [L16] \read(**pb) [L11] EXPR \read(*pb) [L11] *pa = *pb [L25] EXPR \read(a) [L25] EXPR \read(b) VAL [a={1:0}, b={2:0}, global={3:0}] [L25] COND TRUE a != b [L31] __VERIFIER_error() VAL [a={1:0}, b={2:0}, global={3:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 10 locations, 1 error locations. UNSAFE Result, 0.3s OverallTime, 1 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=10occurred 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: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 6 NumberOfCodeBlocks, 6 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...