./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/bitvector-regression/implicitunsignedconversion-1.c --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/bitvector-regression/implicitunsignedconversion-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 59cfeb3705edf7a8f1fb3969f0cbe1c9b0cfc4af ....................................................................................................................................................................................................................... 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 [2019-11-27 22:34:43,256 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-27 22:34:43,259 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-27 22:34:43,277 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-27 22:34:43,278 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-27 22:34:43,280 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-27 22:34:43,282 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-27 22:34:43,292 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-27 22:34:43,297 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-27 22:34:43,301 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-27 22:34:43,302 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-27 22:34:43,304 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-27 22:34:43,305 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-27 22:34:43,308 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-27 22:34:43,309 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-27 22:34:43,311 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-27 22:34:43,313 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-27 22:34:43,314 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-27 22:34:43,316 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-27 22:34:43,320 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-27 22:34:43,325 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-27 22:34:43,330 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-27 22:34:43,331 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-27 22:34:43,333 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-27 22:34:43,339 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-27 22:34:43,339 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-27 22:34:43,339 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-27 22:34:43,341 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-27 22:34:43,341 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-27 22:34:43,342 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-27 22:34:43,343 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-27 22:34:43,343 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-27 22:34:43,344 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-27 22:34:43,345 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-27 22:34:43,347 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-27 22:34:43,347 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-27 22:34:43,348 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-27 22:34:43,349 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-27 22:34:43,349 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-27 22:34:43,350 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-27 22:34:43,352 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-27 22:34:43,353 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-27 22:34:43,385 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-27 22:34:43,389 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-27 22:34:43,390 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-27 22:34:43,392 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-27 22:34:43,394 INFO L138 SettingsManager]: * Use SBE=true [2019-11-27 22:34:43,394 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-27 22:34:43,395 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-27 22:34:43,395 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-27 22:34:43,395 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-27 22:34:43,395 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-27 22:34:43,396 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-27 22:34:43,396 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-27 22:34:43,396 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-27 22:34:43,396 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-27 22:34:43,397 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-27 22:34:43,398 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-27 22:34:43,399 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-27 22:34:43,399 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-27 22:34:43,399 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-27 22:34:43,400 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-27 22:34:43,400 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-27 22:34:43,400 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-27 22:34:43,401 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-27 22:34:43,403 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-27 22:34:43,403 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-27 22:34:43,403 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-27 22:34:43,404 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-27 22:34:43,404 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-27 22:34:43,404 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 -> 59cfeb3705edf7a8f1fb3969f0cbe1c9b0cfc4af [2019-11-27 22:34:43,697 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-27 22:34:43,714 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-27 22:34:43,718 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-27 22:34:43,720 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-27 22:34:43,721 INFO L275 PluginConnector]: CDTParser initialized [2019-11-27 22:34:43,723 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/bitvector-regression/implicitunsignedconversion-1.c [2019-11-27 22:34:43,795 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7f9efd4a2/d1935c9b63f24210a688adda1ee4c520/FLAG5f6b6ffa0 [2019-11-27 22:34:44,201 INFO L306 CDTParser]: Found 1 translation units. [2019-11-27 22:34:44,202 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/bitvector-regression/implicitunsignedconversion-1.c [2019-11-27 22:34:44,208 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7f9efd4a2/d1935c9b63f24210a688adda1ee4c520/FLAG5f6b6ffa0 [2019-11-27 22:34:44,640 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7f9efd4a2/d1935c9b63f24210a688adda1ee4c520 [2019-11-27 22:34:44,644 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-27 22:34:44,646 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-27 22:34:44,647 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-27 22:34:44,647 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-27 22:34:44,651 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-27 22:34:44,652 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 10:34:44" (1/1) ... [2019-11-27 22:34:44,655 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5cebebe4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 10:34:44, skipping insertion in model container [2019-11-27 22:34:44,656 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 10:34:44" (1/1) ... [2019-11-27 22:34:44,664 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-27 22:34:44,680 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-27 22:34:44,841 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-27 22:34:44,847 INFO L203 MainTranslator]: Completed pre-run [2019-11-27 22:34:44,863 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-27 22:34:44,879 INFO L208 MainTranslator]: Completed translation [2019-11-27 22:34:44,880 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 10:34:44 WrapperNode [2019-11-27 22:34:44,880 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-27 22:34:44,881 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-27 22:34:44,881 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-27 22:34:44,881 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-27 22:34:44,889 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 10:34:44" (1/1) ... [2019-11-27 22:34:44,896 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 10:34:44" (1/1) ... [2019-11-27 22:34:44,910 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-27 22:34:44,911 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-27 22:34:44,911 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-27 22:34:44,911 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-27 22:34:44,988 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 10:34:44" (1/1) ... [2019-11-27 22:34:44,989 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 10:34:44" (1/1) ... [2019-11-27 22:34:44,990 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 10:34:44" (1/1) ... [2019-11-27 22:34:44,990 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 10:34:44" (1/1) ... [2019-11-27 22:34:44,993 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 10:34:44" (1/1) ... [2019-11-27 22:34:44,995 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 10:34:44" (1/1) ... [2019-11-27 22:34:44,996 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 10:34:44" (1/1) ... [2019-11-27 22:34:44,997 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-27 22:34:44,997 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-27 22:34:44,997 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-27 22:34:44,998 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-27 22:34:44,998 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 10:34:44" (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 [2019-11-27 22:34:45,061 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-27 22:34:45,063 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-27 22:34:45,197 INFO L292 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-27 22:34:45,197 INFO L297 CfgBuilder]: Removed 4 assume(true) statements. [2019-11-27 22:34:45,198 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 10:34:45 BoogieIcfgContainer [2019-11-27 22:34:45,199 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-27 22:34:45,199 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-27 22:34:45,199 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-27 22:34:45,204 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-27 22:34:45,205 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.11 10:34:44" (1/3) ... [2019-11-27 22:34:45,207 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@549eeb42 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.11 10:34:45, skipping insertion in model container [2019-11-27 22:34:45,208 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 10:34:44" (2/3) ... [2019-11-27 22:34:45,209 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@549eeb42 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.11 10:34:45, skipping insertion in model container [2019-11-27 22:34:45,209 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 10:34:45" (3/3) ... [2019-11-27 22:34:45,211 INFO L109 eAbstractionObserver]: Analyzing ICFG implicitunsignedconversion-1.c [2019-11-27 22:34:45,222 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-27 22:34:45,230 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-27 22:34:45,243 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-27 22:34:45,269 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-27 22:34:45,269 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-27 22:34:45,270 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-27 22:34:45,270 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-27 22:34:45,270 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-27 22:34:45,270 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-27 22:34:45,271 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-27 22:34:45,271 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-27 22:34:45,285 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states. [2019-11-27 22:34:45,290 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2019-11-27 22:34:45,290 INFO L402 BasicCegarLoop]: Found error trace [2019-11-27 22:34:45,291 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1] [2019-11-27 22:34:45,292 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-27 22:34:45,296 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-27 22:34:45,297 INFO L82 PathProgramCache]: Analyzing trace with hash 30884, now seen corresponding path program 1 times [2019-11-27 22:34:45,304 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-27 22:34:45,304 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1680356256] [2019-11-27 22:34:45,304 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-27 22:34:45,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-27 22:34:45,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-27 22:34:45,411 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-27 22:34:45,412 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-11-27 22:34:45,428 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.11 10:34:45 BoogieIcfgContainer [2019-11-27 22:34:45,428 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-27 22:34:45,429 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-27 22:34:45,429 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-27 22:34:45,429 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-27 22:34:45,430 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 10:34:45" (3/4) ... [2019-11-27 22:34:45,432 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-11-27 22:34:45,469 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2019-11-27 22:34:45,470 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-27 22:34:45,473 INFO L168 Benchmark]: Toolchain (without parser) took 826.33 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 150.5 MB). Free memory was 961.7 MB in the beginning and 1.1 GB in the end (delta: -139.6 MB). Peak memory consumption was 10.9 MB. Max. memory is 11.5 GB. [2019-11-27 22:34:45,474 INFO L168 Benchmark]: CDTParser took 0.37 ms. Allocated memory is still 1.0 GB. Free memory is still 987.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-27 22:34:45,475 INFO L168 Benchmark]: CACSL2BoogieTranslator took 233.27 ms. Allocated memory is still 1.0 GB. Free memory was 961.7 MB in the beginning and 951.0 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2019-11-27 22:34:45,476 INFO L168 Benchmark]: Boogie Procedure Inliner took 29.59 ms. Allocated memory is still 1.0 GB. Free memory is still 951.0 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-27 22:34:45,477 INFO L168 Benchmark]: Boogie Preprocessor took 86.54 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 150.5 MB). Free memory was 951.0 MB in the beginning and 1.1 GB in the end (delta: -195.8 MB). Peak memory consumption was 9.9 MB. Max. memory is 11.5 GB. [2019-11-27 22:34:45,478 INFO L168 Benchmark]: RCFGBuilder took 201.28 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: 25.4 MB). Peak memory consumption was 25.4 MB. Max. memory is 11.5 GB. [2019-11-27 22:34:45,479 INFO L168 Benchmark]: TraceAbstraction took 228.83 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: 20.1 MB). Peak memory consumption was 20.1 MB. Max. memory is 11.5 GB. [2019-11-27 22:34:45,480 INFO L168 Benchmark]: Witness Printer took 41.29 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. [2019-11-27 22:34:45,484 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.37 ms. Allocated memory is still 1.0 GB. Free memory is still 987.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 233.27 ms. Allocated memory is still 1.0 GB. Free memory was 961.7 MB in the beginning and 951.0 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 29.59 ms. Allocated memory is still 1.0 GB. Free memory is still 951.0 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 86.54 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 150.5 MB). Free memory was 951.0 MB in the beginning and 1.1 GB in the end (delta: -195.8 MB). Peak memory consumption was 9.9 MB. Max. memory is 11.5 GB. * RCFGBuilder took 201.28 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: 25.4 MB). Peak memory consumption was 25.4 MB. Max. memory is 11.5 GB. * TraceAbstraction took 228.83 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: 20.1 MB). Peak memory consumption was 20.1 MB. Max. memory is 11.5 GB. * Witness Printer took 41.29 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: [L4] unsigned int plus_one = 1; [L5] int minus_one = -1; [L7] COND TRUE plus_one < minus_one [L12] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 7 locations, 1 error locations. Result: UNSAFE, OverallTime: 0.1s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=7occurred 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, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 3 NumberOfCodeBlocks, 3 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, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...