./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/loop-acceleration/simple_3-1.c --full-output -ea --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 8bd4bc60 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -ea -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-acceleration/simple_3-1.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 be63c976650441aaee3d3a743a32b09c44df32d0 .......................................................................................................................................................................................................................................... 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 0.1.25-8bd4bc6 [2020-07-28 18:14:28,121 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-28 18:14:28,123 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-28 18:14:28,134 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-28 18:14:28,135 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-28 18:14:28,136 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-28 18:14:28,138 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-28 18:14:28,140 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-28 18:14:28,142 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-28 18:14:28,143 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-28 18:14:28,144 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-28 18:14:28,145 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-28 18:14:28,146 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-28 18:14:28,147 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-28 18:14:28,148 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-28 18:14:28,149 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-28 18:14:28,150 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-28 18:14:28,151 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-28 18:14:28,153 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-28 18:14:28,156 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-28 18:14:28,158 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-28 18:14:28,159 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-28 18:14:28,160 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-28 18:14:28,161 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-28 18:14:28,164 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-28 18:14:28,165 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-28 18:14:28,165 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-28 18:14:28,166 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-28 18:14:28,167 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-28 18:14:28,168 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-28 18:14:28,168 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-28 18:14:28,169 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-28 18:14:28,170 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-28 18:14:28,171 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-28 18:14:28,172 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-28 18:14:28,172 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-28 18:14:28,173 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-28 18:14:28,173 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-28 18:14:28,174 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-28 18:14:28,175 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-28 18:14:28,176 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-28 18:14:28,177 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-07-28 18:14:28,193 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-28 18:14:28,194 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-28 18:14:28,195 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-28 18:14:28,195 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-28 18:14:28,196 INFO L138 SettingsManager]: * Use SBE=true [2020-07-28 18:14:28,196 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-28 18:14:28,196 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-28 18:14:28,197 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-28 18:14:28,197 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-28 18:14:28,197 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-28 18:14:28,197 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-28 18:14:28,198 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-28 18:14:28,198 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-28 18:14:28,198 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-28 18:14:28,199 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-28 18:14:28,199 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-28 18:14:28,199 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-28 18:14:28,199 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-28 18:14:28,200 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-28 18:14:28,200 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-28 18:14:28,200 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-28 18:14:28,201 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-28 18:14:28,201 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-28 18:14:28,201 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-28 18:14:28,201 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-28 18:14:28,202 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-28 18:14:28,202 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-28 18:14:28,202 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-28 18:14:28,203 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-28 18:14:28,203 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 -> be63c976650441aaee3d3a743a32b09c44df32d0 [2020-07-28 18:14:28,509 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-28 18:14:28,522 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-28 18:14:28,526 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-28 18:14:28,527 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-28 18:14:28,528 INFO L275 PluginConnector]: CDTParser initialized [2020-07-28 18:14:28,529 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/loop-acceleration/simple_3-1.c [2020-07-28 18:14:28,590 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4396b1b14/2e6df01e68144c32b293d4e3a7f908a7/FLAGcedc80e02 [2020-07-28 18:14:28,980 INFO L306 CDTParser]: Found 1 translation units. [2020-07-28 18:14:28,981 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-acceleration/simple_3-1.c [2020-07-28 18:14:28,988 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4396b1b14/2e6df01e68144c32b293d4e3a7f908a7/FLAGcedc80e02 [2020-07-28 18:14:29,347 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4396b1b14/2e6df01e68144c32b293d4e3a7f908a7 [2020-07-28 18:14:29,351 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-28 18:14:29,354 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-07-28 18:14:29,355 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-28 18:14:29,355 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-28 18:14:29,359 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-28 18:14:29,360 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.07 06:14:29" (1/1) ... [2020-07-28 18:14:29,363 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7f86c9de and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 06:14:29, skipping insertion in model container [2020-07-28 18:14:29,364 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.07 06:14:29" (1/1) ... [2020-07-28 18:14:29,371 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-28 18:14:29,388 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-28 18:14:29,545 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-28 18:14:29,550 INFO L203 MainTranslator]: Completed pre-run [2020-07-28 18:14:29,566 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-28 18:14:29,581 INFO L208 MainTranslator]: Completed translation [2020-07-28 18:14:29,582 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 06:14:29 WrapperNode [2020-07-28 18:14:29,582 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-28 18:14:29,584 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-07-28 18:14:29,584 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-07-28 18:14:29,584 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-07-28 18:14:29,595 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 06:14:29" (1/1) ... [2020-07-28 18:14:29,601 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 06:14:29" (1/1) ... [2020-07-28 18:14:29,625 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-07-28 18:14:29,626 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-28 18:14:29,626 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-28 18:14:29,627 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-28 18:14:29,693 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 06:14:29" (1/1) ... [2020-07-28 18:14:29,693 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 06:14:29" (1/1) ... [2020-07-28 18:14:29,694 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 06:14:29" (1/1) ... [2020-07-28 18:14:29,694 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 06:14:29" (1/1) ... [2020-07-28 18:14:29,704 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 06:14:29" (1/1) ... [2020-07-28 18:14:29,721 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 06:14:29" (1/1) ... [2020-07-28 18:14:29,722 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 06:14:29" (1/1) ... [2020-07-28 18:14:29,726 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-28 18:14:29,728 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-28 18:14:29,729 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-28 18:14:29,729 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-28 18:14:29,730 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 06:14:29" (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 [2020-07-28 18:14:29,808 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-28 18:14:29,809 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-28 18:14:30,039 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-28 18:14:30,040 INFO L295 CfgBuilder]: Removed 7 assume(true) statements. [2020-07-28 18:14:30,043 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.07 06:14:30 BoogieIcfgContainer [2020-07-28 18:14:30,044 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-28 18:14:30,045 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-28 18:14:30,046 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-28 18:14:30,049 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-28 18:14:30,050 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.07 06:14:29" (1/3) ... [2020-07-28 18:14:30,050 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b143a2e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.07 06:14:30, skipping insertion in model container [2020-07-28 18:14:30,051 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 06:14:29" (2/3) ... [2020-07-28 18:14:30,051 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b143a2e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.07 06:14:30, skipping insertion in model container [2020-07-28 18:14:30,052 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.07 06:14:30" (3/3) ... [2020-07-28 18:14:30,053 INFO L109 eAbstractionObserver]: Analyzing ICFG simple_3-1.c [2020-07-28 18:14:30,064 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-07-28 18:14:30,072 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-28 18:14:30,090 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-28 18:14:30,119 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-28 18:14:30,120 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-28 18:14:30,120 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-07-28 18:14:30,121 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-28 18:14:30,121 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-28 18:14:30,121 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-28 18:14:30,122 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-28 18:14:30,122 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-28 18:14:30,145 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states. [2020-07-28 18:14:30,159 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-07-28 18:14:30,160 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 18:14:30,164 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2020-07-28 18:14:30,165 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 18:14:30,177 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 18:14:30,181 INFO L82 PathProgramCache]: Analyzing trace with hash 29805000, now seen corresponding path program 1 times [2020-07-28 18:14:30,201 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-28 18:14:30,204 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [638926079] [2020-07-28 18:14:30,205 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-28 18:14:30,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-28 18:14:30,405 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-28 18:14:30,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-28 18:14:30,440 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-28 18:14:30,461 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-28 18:14:30,462 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-07-28 18:14:30,463 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-28 18:14:30,483 WARN L170 areAnnotationChecker]: ULTIMATE.startENTRY has no Hoare annotation [2020-07-28 18:14:30,483 WARN L170 areAnnotationChecker]: L15-2 has no Hoare annotation [2020-07-28 18:14:30,484 WARN L170 areAnnotationChecker]: L15-2 has no Hoare annotation [2020-07-28 18:14:30,484 WARN L170 areAnnotationChecker]: L15-2 has no Hoare annotation [2020-07-28 18:14:30,484 WARN L170 areAnnotationChecker]: L15-3 has no Hoare annotation [2020-07-28 18:14:30,484 WARN L170 areAnnotationChecker]: L5 has no Hoare annotation [2020-07-28 18:14:30,484 WARN L170 areAnnotationChecker]: L5 has no Hoare annotation [2020-07-28 18:14:30,485 WARN L170 areAnnotationChecker]: L6 has no Hoare annotation [2020-07-28 18:14:30,485 WARN L170 areAnnotationChecker]: L6 has no Hoare annotation [2020-07-28 18:14:30,485 WARN L170 areAnnotationChecker]: L5-2 has no Hoare annotation [2020-07-28 18:14:30,485 WARN L170 areAnnotationChecker]: ULTIMATE.startFINAL has no Hoare annotation [2020-07-28 18:14:30,485 INFO L163 areAnnotationChecker]: CFG has 0 edges. 0 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. 0 times interpolants missing. [2020-07-28 18:14:30,488 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.07 06:14:30 BoogieIcfgContainer [2020-07-28 18:14:30,489 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-28 18:14:30,489 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-07-28 18:14:30,489 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-07-28 18:14:30,490 INFO L275 PluginConnector]: Witness Printer initialized [2020-07-28 18:14:30,490 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.07 06:14:30" (3/4) ... [2020-07-28 18:14:30,493 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-07-28 18:14:30,538 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-07-28 18:14:30,538 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-07-28 18:14:30,542 INFO L168 Benchmark]: Toolchain (without parser) took 1188.13 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 126.4 MB). Free memory was 952.2 MB in the beginning and 1.1 GB in the end (delta: -130.8 MB). There was no memory consumed. Max. memory is 11.5 GB. [2020-07-28 18:14:30,544 INFO L168 Benchmark]: CDTParser took 0.34 ms. Allocated memory is still 1.0 GB. Free memory is still 981.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2020-07-28 18:14:30,545 INFO L168 Benchmark]: CACSL2BoogieTranslator took 228.10 ms. Allocated memory is still 1.0 GB. Free memory was 952.2 MB in the beginning and 941.4 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2020-07-28 18:14:30,551 INFO L168 Benchmark]: Boogie Procedure Inliner took 42.35 ms. Allocated memory is still 1.0 GB. Free memory is still 941.4 MB. There was no memory consumed. Max. memory is 11.5 GB. [2020-07-28 18:14:30,552 INFO L168 Benchmark]: Boogie Preprocessor took 101.00 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 126.4 MB). Free memory was 941.4 MB in the beginning and 1.1 GB in the end (delta: -174.5 MB). Peak memory consumption was 9.7 MB. Max. memory is 11.5 GB. [2020-07-28 18:14:30,553 INFO L168 Benchmark]: RCFGBuilder took 316.46 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: 12.8 MB). Peak memory consumption was 12.8 MB. Max. memory is 11.5 GB. [2020-07-28 18:14:30,554 INFO L168 Benchmark]: TraceAbstraction took 443.52 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: 13.4 MB). Peak memory consumption was 13.4 MB. Max. memory is 11.5 GB. [2020-07-28 18:14:30,555 INFO L168 Benchmark]: Witness Printer took 49.07 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. [2020-07-28 18:14:30,565 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - AssertionsEnabledResult: Assertions are enabled Assertions are enabled - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34 ms. Allocated memory is still 1.0 GB. Free memory is still 981.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 228.10 ms. Allocated memory is still 1.0 GB. Free memory was 952.2 MB in the beginning and 941.4 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 42.35 ms. Allocated memory is still 1.0 GB. Free memory is still 941.4 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 101.00 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 126.4 MB). Free memory was 941.4 MB in the beginning and 1.1 GB in the end (delta: -174.5 MB). Peak memory consumption was 9.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 316.46 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: 12.8 MB). Peak memory consumption was 12.8 MB. Max. memory is 11.5 GB. * TraceAbstraction took 443.52 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: 13.4 MB). Peak memory consumption was 13.4 MB. Max. memory is 11.5 GB. * Witness Printer took 49.07 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: 6]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L12] unsigned int x = 0; [L13] unsigned short N = __VERIFIER_nondet_ushort(); [L15] COND FALSE !(x < N) [L5] COND TRUE !(cond) [L6] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 9 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.3s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=9occurred 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: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 5 NumberOfCodeBlocks, 5 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...