./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/loop-crafted/simple_array_index_value_1-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 30f4e4ab Calling Ultimate with: /usr/bin/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 ../sv-benchmarks/c/loop-crafted/simple_array_index_value_1-2.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 812742039d02caa806a6f44f2f3d29fbaac1cc75 ....................................................................................................................................................................................................................................................................... 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 0.1.24-30f4e4a [2019-11-28 00:01:18,127 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-28 00:01:18,129 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-28 00:01:18,143 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-28 00:01:18,144 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-28 00:01:18,146 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-28 00:01:18,148 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-28 00:01:18,160 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-28 00:01:18,162 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-28 00:01:18,163 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-28 00:01:18,164 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-28 00:01:18,166 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-28 00:01:18,166 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-28 00:01:18,167 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-28 00:01:18,168 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-28 00:01:18,169 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-28 00:01:18,170 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-28 00:01:18,170 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-28 00:01:18,172 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-28 00:01:18,174 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-28 00:01:18,176 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-28 00:01:18,178 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-28 00:01:18,179 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-28 00:01:18,180 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-28 00:01:18,185 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-28 00:01:18,186 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-28 00:01:18,186 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-28 00:01:18,187 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-28 00:01:18,189 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-28 00:01:18,190 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-28 00:01:18,190 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-28 00:01:18,192 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-28 00:01:18,193 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-28 00:01:18,195 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-28 00:01:18,196 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-28 00:01:18,199 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-28 00:01:18,200 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-28 00:01:18,200 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-28 00:01:18,201 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-28 00:01:18,202 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-28 00:01:18,202 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-28 00:01:18,203 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-28 00:01:18,218 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-28 00:01:18,218 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-28 00:01:18,219 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-28 00:01:18,219 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-28 00:01:18,220 INFO L138 SettingsManager]: * Use SBE=true [2019-11-28 00:01:18,220 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-28 00:01:18,220 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-28 00:01:18,220 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-28 00:01:18,221 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-28 00:01:18,221 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-28 00:01:18,221 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-28 00:01:18,221 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-28 00:01:18,221 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-28 00:01:18,222 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-28 00:01:18,222 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-28 00:01:18,222 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-28 00:01:18,222 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-28 00:01:18,223 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-28 00:01:18,223 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-28 00:01:18,223 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-28 00:01:18,223 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-28 00:01:18,223 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-28 00:01:18,224 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-28 00:01:18,224 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-28 00:01:18,224 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-28 00:01:18,224 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-28 00:01:18,225 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-28 00:01:18,225 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-28 00:01:18,225 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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 -> 812742039d02caa806a6f44f2f3d29fbaac1cc75 [2019-11-28 00:01:18,552 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-28 00:01:18,566 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-28 00:01:18,570 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-28 00:01:18,571 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-28 00:01:18,572 INFO L275 PluginConnector]: CDTParser initialized [2019-11-28 00:01:18,573 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/loop-crafted/simple_array_index_value_1-2.i [2019-11-28 00:01:18,643 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/42c59be08/78d231f35f2f42f7a424a656742d47b5/FLAG777571530 [2019-11-28 00:01:19,100 INFO L306 CDTParser]: Found 1 translation units. [2019-11-28 00:01:19,101 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-crafted/simple_array_index_value_1-2.i [2019-11-28 00:01:19,108 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/42c59be08/78d231f35f2f42f7a424a656742d47b5/FLAG777571530 [2019-11-28 00:01:19,488 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/42c59be08/78d231f35f2f42f7a424a656742d47b5 [2019-11-28 00:01:19,492 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-28 00:01:19,493 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-28 00:01:19,494 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-28 00:01:19,495 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-28 00:01:19,498 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-28 00:01:19,499 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 12:01:19" (1/1) ... [2019-11-28 00:01:19,502 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@51c22218 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:01:19, skipping insertion in model container [2019-11-28 00:01:19,502 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 12:01:19" (1/1) ... [2019-11-28 00:01:19,509 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-28 00:01:19,525 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-28 00:01:19,765 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 00:01:19,773 INFO L203 MainTranslator]: Completed pre-run [2019-11-28 00:01:19,799 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 00:01:19,821 INFO L208 MainTranslator]: Completed translation [2019-11-28 00:01:19,822 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:01:19 WrapperNode [2019-11-28 00:01:19,822 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-28 00:01:19,823 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-28 00:01:19,823 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-28 00:01:19,823 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-28 00:01:19,907 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:01:19" (1/1) ... [2019-11-28 00:01:19,917 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:01:19" (1/1) ... [2019-11-28 00:01:19,938 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-28 00:01:19,940 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-28 00:01:19,940 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-28 00:01:19,940 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-28 00:01:19,949 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:01:19" (1/1) ... [2019-11-28 00:01:19,950 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:01:19" (1/1) ... [2019-11-28 00:01:19,951 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:01:19" (1/1) ... [2019-11-28 00:01:19,951 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:01:19" (1/1) ... [2019-11-28 00:01:19,956 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:01:19" (1/1) ... [2019-11-28 00:01:19,962 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:01:19" (1/1) ... [2019-11-28 00:01:19,963 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:01:19" (1/1) ... [2019-11-28 00:01:19,965 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-28 00:01:19,965 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-28 00:01:19,965 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-28 00:01:19,965 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-28 00:01:19,966 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:01:19" (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 [2019-11-28 00:01:20,029 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-28 00:01:20,029 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-28 00:01:20,029 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-28 00:01:20,030 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-28 00:01:20,031 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-28 00:01:20,031 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-28 00:01:20,244 INFO L292 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-28 00:01:20,244 INFO L297 CfgBuilder]: Removed 7 assume(true) statements. [2019-11-28 00:01:20,246 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 12:01:20 BoogieIcfgContainer [2019-11-28 00:01:20,246 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-28 00:01:20,247 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-28 00:01:20,247 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-28 00:01:20,250 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-28 00:01:20,251 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 12:01:19" (1/3) ... [2019-11-28 00:01:20,252 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5a80539d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 12:01:20, skipping insertion in model container [2019-11-28 00:01:20,265 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:01:19" (2/3) ... [2019-11-28 00:01:20,266 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5a80539d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 12:01:20, skipping insertion in model container [2019-11-28 00:01:20,266 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 12:01:20" (3/3) ... [2019-11-28 00:01:20,274 INFO L109 eAbstractionObserver]: Analyzing ICFG simple_array_index_value_1-2.i [2019-11-28 00:01:20,303 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-28 00:01:20,318 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-28 00:01:20,344 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-28 00:01:20,373 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-28 00:01:20,374 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-28 00:01:20,374 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-28 00:01:20,374 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-28 00:01:20,374 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-28 00:01:20,374 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-28 00:01:20,374 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-28 00:01:20,374 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-28 00:01:20,388 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states. [2019-11-28 00:01:20,393 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-11-28 00:01:20,394 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 00:01:20,394 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 00:01:20,395 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-28 00:01:20,400 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 00:01:20,400 INFO L82 PathProgramCache]: Analyzing trace with hash 502060139, now seen corresponding path program 1 times [2019-11-28 00:01:20,408 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 00:01:20,408 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [626692278] [2019-11-28 00:01:20,409 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 00:01:20,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 00:01:20,514 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 00:01:20,515 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [626692278] [2019-11-28 00:01:20,516 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 00:01:20,516 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-28 00:01:20,516 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1570271633] [2019-11-28 00:01:20,521 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-28 00:01:20,521 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 00:01:20,531 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-28 00:01:20,532 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-28 00:01:20,533 INFO L87 Difference]: Start difference. First operand 14 states. Second operand 2 states. [2019-11-28 00:01:20,549 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 00:01:20,550 INFO L93 Difference]: Finished difference Result 24 states and 29 transitions. [2019-11-28 00:01:20,550 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-28 00:01:20,551 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 8 [2019-11-28 00:01:20,552 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 00:01:20,560 INFO L225 Difference]: With dead ends: 24 [2019-11-28 00:01:20,560 INFO L226 Difference]: Without dead ends: 10 [2019-11-28 00:01:20,563 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-28 00:01:20,578 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states. [2019-11-28 00:01:20,588 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 10. [2019-11-28 00:01:20,589 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2019-11-28 00:01:20,589 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 11 transitions. [2019-11-28 00:01:20,591 INFO L78 Accepts]: Start accepts. Automaton has 10 states and 11 transitions. Word has length 8 [2019-11-28 00:01:20,591 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 00:01:20,591 INFO L462 AbstractCegarLoop]: Abstraction has 10 states and 11 transitions. [2019-11-28 00:01:20,592 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-28 00:01:20,592 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 11 transitions. [2019-11-28 00:01:20,592 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-11-28 00:01:20,592 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 00:01:20,593 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 00:01:20,593 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-28 00:01:20,593 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 00:01:20,593 INFO L82 PathProgramCache]: Analyzing trace with hash 586736404, now seen corresponding path program 1 times [2019-11-28 00:01:20,594 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 00:01:20,594 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1354236330] [2019-11-28 00:01:20,594 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 00:01:20,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 00:01:20,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 00:01:20,686 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 00:01:20,686 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-11-28 00:01:20,708 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 12:01:20 BoogieIcfgContainer [2019-11-28 00:01:20,708 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-28 00:01:20,708 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-28 00:01:20,709 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-28 00:01:20,709 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-28 00:01:20,709 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 12:01:20" (3/4) ... [2019-11-28 00:01:20,711 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-11-28 00:01:20,753 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2019-11-28 00:01:20,753 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-28 00:01:20,755 INFO L168 Benchmark]: Toolchain (without parser) took 1261.26 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 136.3 MB). Free memory was 956.3 MB in the beginning and 1.1 GB in the end (delta: -124.4 MB). Peak memory consumption was 11.9 MB. Max. memory is 11.5 GB. [2019-11-28 00:01:20,756 INFO L168 Benchmark]: CDTParser took 0.31 ms. Allocated memory is still 1.0 GB. Free memory is still 981.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-28 00:01:20,756 INFO L168 Benchmark]: CACSL2BoogieTranslator took 327.81 ms. Allocated memory is still 1.0 GB. Free memory was 956.3 MB in the beginning and 944.3 MB in the end (delta: 12.1 MB). Peak memory consumption was 12.1 MB. Max. memory is 11.5 GB. [2019-11-28 00:01:20,757 INFO L168 Benchmark]: Boogie Procedure Inliner took 117.04 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 136.3 MB). Free memory was 944.3 MB in the beginning and 1.1 GB in the end (delta: -188.3 MB). Peak memory consumption was 9.8 MB. Max. memory is 11.5 GB. [2019-11-28 00:01:20,758 INFO L168 Benchmark]: Boogie Preprocessor took 24.82 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: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. [2019-11-28 00:01:20,759 INFO L168 Benchmark]: RCFGBuilder took 281.11 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: 24.8 MB). Peak memory consumption was 24.8 MB. Max. memory is 11.5 GB. [2019-11-28 00:01:20,763 INFO L168 Benchmark]: TraceAbstraction took 460.94 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: 20.3 MB). Peak memory consumption was 20.3 MB. Max. memory is 11.5 GB. [2019-11-28 00:01:20,764 INFO L168 Benchmark]: Witness Printer took 44.62 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. [2019-11-28 00:01:20,770 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31 ms. Allocated memory is still 1.0 GB. Free memory is still 981.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 327.81 ms. Allocated memory is still 1.0 GB. Free memory was 956.3 MB in the beginning and 944.3 MB in the end (delta: 12.1 MB). Peak memory consumption was 12.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 117.04 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 136.3 MB). Free memory was 944.3 MB in the beginning and 1.1 GB in the end (delta: -188.3 MB). Peak memory consumption was 9.8 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 24.82 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: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. * RCFGBuilder took 281.11 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: 24.8 MB). Peak memory consumption was 24.8 MB. Max. memory is 11.5 GB. * TraceAbstraction took 460.94 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: 20.3 MB). Peak memory consumption was 20.3 MB. Max. memory is 11.5 GB. * Witness Printer took 44.62 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: 12]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L21] unsigned int array[10000]; [L22] unsigned int index = 0; [L23] unsigned int tmp = 0; [L25] COND TRUE 1 [L26] index = __VERIFIER_nondet_uint() [L27] COND TRUE index >= 10000 [L34] tmp < 10000 && array[tmp] == tmp [L34] EXPR array[tmp] [L34] tmp < 10000 && array[tmp] == tmp [L11] COND TRUE !(cond) [L12] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 14 locations, 1 error locations. Result: UNSAFE, OverallTime: 0.3s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 15 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 0 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=14occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 17 NumberOfCodeBlocks, 17 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 7 ConstructedInterpolants, 0 QuantifiedInterpolants, 49 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...