./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 9a8b2e8d Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -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(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 18699bf5fb338ee07f26df32519d8644b1d2392e ............................................................................................................................................................................................................................. 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 0.1.25-9a8b2e8 [2020-10-19 22:22:47,436 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-19 22:22:47,439 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-19 22:22:47,485 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-19 22:22:47,486 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-19 22:22:47,499 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-19 22:22:47,500 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-19 22:22:47,503 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-19 22:22:47,513 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-19 22:22:47,514 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-19 22:22:47,516 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-19 22:22:47,519 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-19 22:22:47,520 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-19 22:22:47,522 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-19 22:22:47,523 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-19 22:22:47,524 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-19 22:22:47,525 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-19 22:22:47,526 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-19 22:22:47,527 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-19 22:22:47,529 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-19 22:22:47,530 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-19 22:22:47,531 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-19 22:22:47,533 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-19 22:22:47,533 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-19 22:22:47,536 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-19 22:22:47,537 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-19 22:22:47,537 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-19 22:22:47,538 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-19 22:22:47,538 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-19 22:22:47,539 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-19 22:22:47,540 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-19 22:22:47,540 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-19 22:22:47,541 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-19 22:22:47,542 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-19 22:22:47,543 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-19 22:22:47,544 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-19 22:22:47,544 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-19 22:22:47,545 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-19 22:22:47,545 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-19 22:22:47,546 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-19 22:22:47,547 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-19 22:22:47,548 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-19 22:22:47,571 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-19 22:22:47,571 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-19 22:22:47,573 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-19 22:22:47,573 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-19 22:22:47,573 INFO L138 SettingsManager]: * Use SBE=true [2020-10-19 22:22:47,574 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-19 22:22:47,574 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-19 22:22:47,574 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-19 22:22:47,574 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-19 22:22:47,575 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-19 22:22:47,575 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-19 22:22:47,575 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-19 22:22:47,575 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-19 22:22:47,576 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-19 22:22:47,576 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-19 22:22:47,576 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-19 22:22:47,576 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-19 22:22:47,577 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-19 22:22:47,577 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-19 22:22:47,577 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-19 22:22:47,578 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-19 22:22:47,578 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-19 22:22:47,578 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-19 22:22:47,578 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-19 22:22:47,579 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-19 22:22:47,579 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-19 22:22:47,579 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-19 22:22:47,579 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-19 22:22:47,580 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-19 22:22:47,580 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(reach_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 -> 18699bf5fb338ee07f26df32519d8644b1d2392e [2020-10-19 22:22:47,789 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-19 22:22:47,811 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-19 22:22:47,827 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-19 22:22:47,829 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-19 22:22:47,830 INFO L275 PluginConnector]: CDTParser initialized [2020-10-19 22:22:47,831 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/bitvector-regression/implicitunsignedconversion-1.c [2020-10-19 22:22:47,895 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e6a004bc5/2cff34127af545cdb45da336a9a821a3/FLAG21882eb2d [2020-10-19 22:22:48,351 INFO L306 CDTParser]: Found 1 translation units. [2020-10-19 22:22:48,352 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/bitvector-regression/implicitunsignedconversion-1.c [2020-10-19 22:22:48,358 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e6a004bc5/2cff34127af545cdb45da336a9a821a3/FLAG21882eb2d [2020-10-19 22:22:48,706 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e6a004bc5/2cff34127af545cdb45da336a9a821a3 [2020-10-19 22:22:48,710 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-19 22:22:48,716 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-19 22:22:48,718 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-19 22:22:48,718 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-19 22:22:48,722 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-19 22:22:48,723 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.10 10:22:48" (1/1) ... [2020-10-19 22:22:48,726 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@f17aa1d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 10:22:48, skipping insertion in model container [2020-10-19 22:22:48,727 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.10 10:22:48" (1/1) ... [2020-10-19 22:22:48,734 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-19 22:22:48,751 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-19 22:22:48,976 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-19 22:22:48,989 INFO L203 MainTranslator]: Completed pre-run [2020-10-19 22:22:49,005 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-19 22:22:49,018 INFO L208 MainTranslator]: Completed translation [2020-10-19 22:22:49,019 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 10:22:49 WrapperNode [2020-10-19 22:22:49,019 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-19 22:22:49,020 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-19 22:22:49,020 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-19 22:22:49,020 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-19 22:22:49,026 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 10:22:49" (1/1) ... [2020-10-19 22:22:49,033 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 10:22:49" (1/1) ... [2020-10-19 22:22:49,047 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-19 22:22:49,047 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-19 22:22:49,047 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-19 22:22:49,047 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-19 22:22:49,054 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 10:22:49" (1/1) ... [2020-10-19 22:22:49,055 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 10:22:49" (1/1) ... [2020-10-19 22:22:49,055 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 10:22:49" (1/1) ... [2020-10-19 22:22:49,056 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 10:22:49" (1/1) ... [2020-10-19 22:22:49,058 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 10:22:49" (1/1) ... [2020-10-19 22:22:49,061 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 10:22:49" (1/1) ... [2020-10-19 22:22:49,062 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 10:22:49" (1/1) ... [2020-10-19 22:22:49,063 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-19 22:22:49,064 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-19 22:22:49,064 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-19 22:22:49,064 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-19 22:22:49,065 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 10:22:49" (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 [2020-10-19 22:22:49,119 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-19 22:22:49,119 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-19 22:22:49,119 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-19 22:22:49,120 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-19 22:22:49,302 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-19 22:22:49,303 INFO L298 CfgBuilder]: Removed 6 assume(true) statements. [2020-10-19 22:22:49,305 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.10 10:22:49 BoogieIcfgContainer [2020-10-19 22:22:49,305 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-19 22:22:49,306 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-19 22:22:49,307 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-19 22:22:49,311 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-19 22:22:49,311 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.10 10:22:48" (1/3) ... [2020-10-19 22:22:49,312 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@61b10cd3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.10 10:22:49, skipping insertion in model container [2020-10-19 22:22:49,313 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 10:22:49" (2/3) ... [2020-10-19 22:22:49,313 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@61b10cd3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.10 10:22:49, skipping insertion in model container [2020-10-19 22:22:49,313 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.10 10:22:49" (3/3) ... [2020-10-19 22:22:49,315 INFO L111 eAbstractionObserver]: Analyzing ICFG implicitunsignedconversion-1.c [2020-10-19 22:22:49,328 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-19 22:22:49,336 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-19 22:22:49,351 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-19 22:22:49,376 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-19 22:22:49,377 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-19 22:22:49,377 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-19 22:22:49,377 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-19 22:22:49,377 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-19 22:22:49,377 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-19 22:22:49,378 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-19 22:22:49,378 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-19 22:22:49,391 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states. [2020-10-19 22:22:49,396 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-10-19 22:22:49,397 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 22:22:49,398 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2020-10-19 22:22:49,398 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 22:22:49,403 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 22:22:49,404 INFO L82 PathProgramCache]: Analyzing trace with hash 925607, now seen corresponding path program 1 times [2020-10-19 22:22:49,411 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 22:22:49,412 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1796826876] [2020-10-19 22:22:49,412 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 22:22:49,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 22:22:49,511 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 22:22:49,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 22:22:49,532 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 22:22:49,555 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-19 22:22:49,556 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-19 22:22:49,556 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-19 22:22:49,583 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.10 10:22:49 BoogieIcfgContainer [2020-10-19 22:22:49,583 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-19 22:22:49,584 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-19 22:22:49,584 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-19 22:22:49,584 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-19 22:22:49,585 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.10 10:22:49" (3/4) ... [2020-10-19 22:22:49,587 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-10-19 22:22:49,631 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-10-19 22:22:49,632 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-19 22:22:49,635 INFO L168 Benchmark]: Toolchain (without parser) took 922.74 ms. Allocated memory was 36.2 MB in the beginning and 46.7 MB in the end (delta: 10.5 MB). Free memory was 14.6 MB in the beginning and 24.5 MB in the end (delta: -9.9 MB). Peak memory consumption was 610.8 kB. Max. memory is 14.3 GB. [2020-10-19 22:22:49,636 INFO L168 Benchmark]: CDTParser took 0.75 ms. Allocated memory is still 34.1 MB. Free memory was 19.9 MB in the beginning and 19.8 MB in the end (delta: 32.2 kB). Peak memory consumption was 32.2 kB. Max. memory is 14.3 GB. [2020-10-19 22:22:49,637 INFO L168 Benchmark]: CACSL2BoogieTranslator took 301.50 ms. Allocated memory was 36.2 MB in the beginning and 44.0 MB in the end (delta: 7.9 MB). Free memory was 13.7 MB in the beginning and 25.8 MB in the end (delta: -12.1 MB). Peak memory consumption was 11.2 MB. Max. memory is 14.3 GB. [2020-10-19 22:22:49,638 INFO L168 Benchmark]: Boogie Procedure Inliner took 27.22 ms. Allocated memory is still 44.0 MB. Free memory was 25.8 MB in the beginning and 24.2 MB in the end (delta: 1.6 MB). Peak memory consumption was 1.6 MB. Max. memory is 14.3 GB. [2020-10-19 22:22:49,639 INFO L168 Benchmark]: Boogie Preprocessor took 16.38 ms. Allocated memory is still 44.0 MB. Free memory was 24.2 MB in the beginning and 23.1 MB in the end (delta: 1.1 MB). Peak memory consumption was 1.1 MB. Max. memory is 14.3 GB. [2020-10-19 22:22:49,640 INFO L168 Benchmark]: RCFGBuilder took 241.35 ms. Allocated memory was 44.0 MB in the beginning and 46.7 MB in the end (delta: 2.6 MB). Free memory was 23.0 MB in the beginning and 25.1 MB in the end (delta: -2.2 MB). Peak memory consumption was 12.3 MB. Max. memory is 14.3 GB. [2020-10-19 22:22:49,641 INFO L168 Benchmark]: TraceAbstraction took 277.10 ms. Allocated memory is still 46.7 MB. Free memory was 24.7 MB in the beginning and 26.4 MB in the end (delta: -1.7 MB). Peak memory consumption was 14.3 MB. Max. memory is 14.3 GB. [2020-10-19 22:22:49,642 INFO L168 Benchmark]: Witness Printer took 48.16 ms. Allocated memory is still 46.7 MB. Free memory was 26.4 MB in the beginning and 24.5 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 14.3 GB. [2020-10-19 22:22:49,647 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.75 ms. Allocated memory is still 34.1 MB. Free memory was 19.9 MB in the beginning and 19.8 MB in the end (delta: 32.2 kB). Peak memory consumption was 32.2 kB. Max. memory is 14.3 GB. * CACSL2BoogieTranslator took 301.50 ms. Allocated memory was 36.2 MB in the beginning and 44.0 MB in the end (delta: 7.9 MB). Free memory was 13.7 MB in the beginning and 25.8 MB in the end (delta: -12.1 MB). Peak memory consumption was 11.2 MB. Max. memory is 14.3 GB. * Boogie Procedure Inliner took 27.22 ms. Allocated memory is still 44.0 MB. Free memory was 25.8 MB in the beginning and 24.2 MB in the end (delta: 1.6 MB). Peak memory consumption was 1.6 MB. Max. memory is 14.3 GB. * Boogie Preprocessor took 16.38 ms. Allocated memory is still 44.0 MB. Free memory was 24.2 MB in the beginning and 23.1 MB in the end (delta: 1.1 MB). Peak memory consumption was 1.1 MB. Max. memory is 14.3 GB. * RCFGBuilder took 241.35 ms. Allocated memory was 44.0 MB in the beginning and 46.7 MB in the end (delta: 2.6 MB). Free memory was 23.0 MB in the beginning and 25.1 MB in the end (delta: -2.2 MB). Peak memory consumption was 12.3 MB. Max. memory is 14.3 GB. * TraceAbstraction took 277.10 ms. Allocated memory is still 46.7 MB. Free memory was 24.7 MB in the beginning and 26.4 MB in the end (delta: -1.7 MB). Peak memory consumption was 14.3 MB. Max. memory is 14.3 GB. * Witness Printer took 48.16 ms. Allocated memory is still 46.7 MB. Free memory was 26.4 MB in the beginning and 24.5 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 14.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 3]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L6] unsigned int plus_one = 1; [L7] int minus_one = -1; [L9] COND TRUE plus_one < minus_one [L3] __assert_fail("0", "implicitunsignedconversion-1.c", 3, "reach_error") - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 9 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.1s, 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, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 4 NumberOfCodeBlocks, 4 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...