./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/bitvector-regression/integerpromotion-2.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/bitvector-regression/integerpromotion-2.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 bf1168110983bcf9fdc75fe12a6575329d72d984 ..................................................................................................................................................................................................................................... Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis 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/bitvector-regression/integerpromotion-2.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.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 bf1168110983bcf9fdc75fe12a6575329d72d984 ................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.25-8bd4bc6 [2020-07-28 15:02:10,805 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-28 15:02:10,807 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-28 15:02:10,819 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-28 15:02:10,819 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-28 15:02:10,820 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-28 15:02:10,822 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-28 15:02:10,824 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-28 15:02:10,825 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-28 15:02:10,826 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-28 15:02:10,827 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-28 15:02:10,829 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-28 15:02:10,829 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-28 15:02:10,830 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-28 15:02:10,831 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-28 15:02:10,832 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-28 15:02:10,833 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-28 15:02:10,834 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-28 15:02:10,836 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-28 15:02:10,838 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-28 15:02:10,840 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-28 15:02:10,841 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-28 15:02:10,842 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-28 15:02:10,843 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-28 15:02:10,846 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-28 15:02:10,846 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-28 15:02:10,846 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-28 15:02:10,847 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-28 15:02:10,848 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-28 15:02:10,849 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-28 15:02:10,849 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-28 15:02:10,850 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-28 15:02:10,851 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-28 15:02:10,852 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-28 15:02:10,853 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-28 15:02:10,853 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-28 15:02:10,854 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-28 15:02:10,854 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-28 15:02:10,854 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-28 15:02:10,855 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-28 15:02:10,856 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-28 15:02:10,857 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-07-28 15:02:10,872 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-28 15:02:10,872 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-28 15:02:10,873 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-28 15:02:10,874 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-28 15:02:10,874 INFO L138 SettingsManager]: * Use SBE=true [2020-07-28 15:02:10,874 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-28 15:02:10,875 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-28 15:02:10,875 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-28 15:02:10,875 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-28 15:02:10,875 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-28 15:02:10,876 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-28 15:02:10,876 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-28 15:02:10,876 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-28 15:02:10,877 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-28 15:02:10,877 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-28 15:02:10,877 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-28 15:02:10,877 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-28 15:02:10,878 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-28 15:02:10,878 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-28 15:02:10,878 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-28 15:02:10,879 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-28 15:02:10,879 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-28 15:02:10,879 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-28 15:02:10,880 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-28 15:02:10,880 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-28 15:02:10,880 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-28 15:02:10,880 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-28 15:02:10,881 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-28 15:02:10,881 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-28 15:02:10,881 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 -> bf1168110983bcf9fdc75fe12a6575329d72d984 [2020-07-28 15:02:11,196 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-28 15:02:11,208 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-28 15:02:11,212 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-28 15:02:11,213 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-28 15:02:11,214 INFO L275 PluginConnector]: CDTParser initialized [2020-07-28 15:02:11,214 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/bitvector-regression/integerpromotion-2.c [2020-07-28 15:02:11,270 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c33f0c7b7/787296cf32f74e84941a5176cf71b8ab/FLAGa361e7b72 [2020-07-28 15:02:11,660 INFO L306 CDTParser]: Found 1 translation units. [2020-07-28 15:02:11,661 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/bitvector-regression/integerpromotion-2.c [2020-07-28 15:02:11,668 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c33f0c7b7/787296cf32f74e84941a5176cf71b8ab/FLAGa361e7b72 [2020-07-28 15:02:12,011 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c33f0c7b7/787296cf32f74e84941a5176cf71b8ab [2020-07-28 15:02:12,015 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-28 15:02:12,018 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-07-28 15:02:12,020 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-28 15:02:12,021 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-28 15:02:12,024 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-28 15:02:12,026 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.07 03:02:12" (1/1) ... [2020-07-28 15:02:12,029 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2038bf2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 03:02:12, skipping insertion in model container [2020-07-28 15:02:12,029 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.07 03:02:12" (1/1) ... [2020-07-28 15:02:12,037 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-28 15:02:12,055 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-28 15:02:12,227 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-28 15:02:12,235 INFO L203 MainTranslator]: Completed pre-run [2020-07-28 15:02:12,252 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-28 15:02:12,270 INFO L208 MainTranslator]: Completed translation [2020-07-28 15:02:12,270 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 03:02:12 WrapperNode [2020-07-28 15:02:12,271 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-28 15:02:12,272 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-07-28 15:02:12,273 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-07-28 15:02:12,273 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-07-28 15:02:12,281 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 03:02:12" (1/1) ... [2020-07-28 15:02:12,288 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 03:02:12" (1/1) ... [2020-07-28 15:02:12,303 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-07-28 15:02:12,304 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-28 15:02:12,304 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-28 15:02:12,304 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-28 15:02:12,368 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 03:02:12" (1/1) ... [2020-07-28 15:02:12,369 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 03:02:12" (1/1) ... [2020-07-28 15:02:12,369 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 03:02:12" (1/1) ... [2020-07-28 15:02:12,370 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 03:02:12" (1/1) ... [2020-07-28 15:02:12,374 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 03:02:12" (1/1) ... [2020-07-28 15:02:12,376 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 03:02:12" (1/1) ... [2020-07-28 15:02:12,377 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 03:02:12" (1/1) ... [2020-07-28 15:02:12,378 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-28 15:02:12,378 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-28 15:02:12,379 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-28 15:02:12,379 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-28 15:02:12,380 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 03:02:12" (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 15:02:12,440 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-28 15:02:12,441 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-28 15:02:12,620 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-28 15:02:12,621 INFO L295 CfgBuilder]: Removed 4 assume(true) statements. [2020-07-28 15:02:12,624 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.07 03:02:12 BoogieIcfgContainer [2020-07-28 15:02:12,624 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-28 15:02:12,625 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-28 15:02:12,625 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-28 15:02:12,628 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-28 15:02:12,629 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.07 03:02:12" (1/3) ... [2020-07-28 15:02:12,629 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@cbab6db and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.07 03:02:12, skipping insertion in model container [2020-07-28 15:02:12,630 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 03:02:12" (2/3) ... [2020-07-28 15:02:12,630 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@cbab6db and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.07 03:02:12, skipping insertion in model container [2020-07-28 15:02:12,630 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.07 03:02:12" (3/3) ... [2020-07-28 15:02:12,632 INFO L109 eAbstractionObserver]: Analyzing ICFG integerpromotion-2.c [2020-07-28 15:02:12,641 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-07-28 15:02:12,648 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-28 15:02:12,663 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-28 15:02:12,686 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-28 15:02:12,687 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-28 15:02:12,687 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-07-28 15:02:12,687 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-28 15:02:12,687 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-28 15:02:12,687 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-28 15:02:12,687 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-28 15:02:12,687 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-28 15:02:12,702 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states. [2020-07-28 15:02:12,707 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2020-07-28 15:02:12,708 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 15:02:12,709 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1] [2020-07-28 15:02:12,709 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 15:02:12,716 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 15:02:12,716 INFO L82 PathProgramCache]: Analyzing trace with hash 30884, now seen corresponding path program 1 times [2020-07-28 15:02:12,726 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-28 15:02:12,727 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [325294056] [2020-07-28 15:02:12,727 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-28 15:02:12,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-28 15:02:12,815 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-28 15:02:12,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-28 15:02:12,822 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-28 15:02:12,835 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-28 15:02:12,836 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-07-28 15:02:12,836 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-28 15:02:12,854 WARN L170 areAnnotationChecker]: ULTIMATE.startENTRY has no Hoare annotation [2020-07-28 15:02:12,854 WARN L170 areAnnotationChecker]: L7 has no Hoare annotation [2020-07-28 15:02:12,854 WARN L170 areAnnotationChecker]: L7 has no Hoare annotation [2020-07-28 15:02:12,854 WARN L170 areAnnotationChecker]: L8 has no Hoare annotation [2020-07-28 15:02:12,855 WARN L170 areAnnotationChecker]: L8 has no Hoare annotation [2020-07-28 15:02:12,855 WARN L170 areAnnotationChecker]: L13 has no Hoare annotation [2020-07-28 15:02:12,855 WARN L170 areAnnotationChecker]: ULTIMATE.startFINAL has no Hoare annotation [2020-07-28 15:02:12,855 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 15:02:12,858 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.07 03:02:12 BoogieIcfgContainer [2020-07-28 15:02:12,858 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-28 15:02:12,858 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-07-28 15:02:12,858 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-07-28 15:02:12,858 INFO L275 PluginConnector]: Witness Printer initialized [2020-07-28 15:02:12,859 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.07 03:02:12" (3/4) ... [2020-07-28 15:02:12,863 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-07-28 15:02:12,863 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-07-28 15:02:12,866 INFO L168 Benchmark]: Toolchain (without parser) took 848.65 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 141.0 MB). Free memory was 950.8 MB in the beginning and 1.1 GB in the end (delta: -154.5 MB). There was no memory consumed. Max. memory is 11.5 GB. [2020-07-28 15:02:12,867 INFO L168 Benchmark]: CDTParser took 0.33 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 15:02:12,868 INFO L168 Benchmark]: CACSL2BoogieTranslator took 251.06 ms. Allocated memory is still 1.0 GB. Free memory was 950.8 MB in the beginning and 940.1 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2020-07-28 15:02:12,869 INFO L168 Benchmark]: Boogie Procedure Inliner took 31.45 ms. Allocated memory is still 1.0 GB. Free memory is still 940.1 MB. There was no memory consumed. Max. memory is 11.5 GB. [2020-07-28 15:02:12,870 INFO L168 Benchmark]: Boogie Preprocessor took 74.07 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 141.0 MB). Free memory was 940.1 MB in the beginning and 1.1 GB in the end (delta: -197.5 MB). Peak memory consumption was 9.7 MB. Max. memory is 11.5 GB. [2020-07-28 15:02:12,871 INFO L168 Benchmark]: RCFGBuilder took 245.79 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: 17.5 MB). Peak memory consumption was 17.5 MB. Max. memory is 11.5 GB. [2020-07-28 15:02:12,871 INFO L168 Benchmark]: TraceAbstraction took 232.57 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: 14.8 MB). Peak memory consumption was 14.8 MB. Max. memory is 11.5 GB. [2020-07-28 15:02:12,872 INFO L168 Benchmark]: Witness Printer took 4.82 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 15:02:12,876 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 0.33 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 251.06 ms. Allocated memory is still 1.0 GB. Free memory was 950.8 MB in the beginning and 940.1 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 31.45 ms. Allocated memory is still 1.0 GB. Free memory is still 940.1 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 74.07 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 141.0 MB). Free memory was 940.1 MB in the beginning and 1.1 GB in the end (delta: -197.5 MB). Peak memory consumption was 9.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 245.79 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: 17.5 MB). Peak memory consumption was 17.5 MB. Max. memory is 11.5 GB. * TraceAbstraction took 232.57 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: 14.8 MB). Peak memory consumption was 14.8 MB. Max. memory is 11.5 GB. * Witness Printer took 4.82 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: - UnprovableResult [Line: 12]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of bitwiseComplement at line 6. Possible FailurePath: [L5] unsigned char port = 0x5a; [L6] unsigned char result_8 = ( ~port ) >> 4; [L7] COND TRUE result_8 != 0xfa [L12] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 7 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=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, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.25-8bd4bc6 [2020-07-28 15:02:14,785 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-28 15:02:14,787 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-28 15:02:14,799 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-28 15:02:14,799 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-28 15:02:14,800 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-28 15:02:14,802 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-28 15:02:14,803 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-28 15:02:14,805 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-28 15:02:14,806 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-28 15:02:14,807 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-28 15:02:14,808 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-28 15:02:14,809 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-28 15:02:14,810 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-28 15:02:14,811 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-28 15:02:14,812 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-28 15:02:14,813 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-28 15:02:14,814 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-28 15:02:14,816 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-28 15:02:14,818 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-28 15:02:14,819 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-28 15:02:14,823 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-28 15:02:14,824 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-28 15:02:14,827 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-28 15:02:14,830 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-28 15:02:14,832 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-28 15:02:14,832 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-28 15:02:14,833 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-28 15:02:14,834 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-28 15:02:14,835 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-28 15:02:14,836 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-28 15:02:14,837 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-28 15:02:14,838 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-28 15:02:14,839 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-28 15:02:14,842 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-28 15:02:14,843 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-28 15:02:14,843 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-28 15:02:14,844 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-28 15:02:14,844 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-28 15:02:14,845 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-28 15:02:14,847 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-28 15:02:14,847 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2020-07-28 15:02:14,881 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-28 15:02:14,885 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-28 15:02:14,886 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-28 15:02:14,886 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-28 15:02:14,886 INFO L138 SettingsManager]: * Use SBE=true [2020-07-28 15:02:14,887 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-28 15:02:14,889 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-28 15:02:14,889 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-28 15:02:14,890 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-28 15:02:14,890 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-28 15:02:14,890 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-28 15:02:14,890 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-28 15:02:14,891 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-07-28 15:02:14,891 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-07-28 15:02:14,891 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-28 15:02:14,891 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-28 15:02:14,892 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-28 15:02:14,894 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-28 15:02:14,895 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-28 15:02:14,895 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-28 15:02:14,895 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-28 15:02:14,895 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-28 15:02:14,896 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-28 15:02:14,896 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-28 15:02:14,896 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-28 15:02:14,896 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-28 15:02:14,897 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2020-07-28 15:02:14,897 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2020-07-28 15:02:14,898 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-28 15:02:14,898 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-28 15:02:14,899 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-07-28 15:02:14,899 INFO L138 SettingsManager]: * Logic for external solver=AUFBV 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 -> bf1168110983bcf9fdc75fe12a6575329d72d984 [2020-07-28 15:02:15,191 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-28 15:02:15,203 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-28 15:02:15,207 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-28 15:02:15,208 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-28 15:02:15,209 INFO L275 PluginConnector]: CDTParser initialized [2020-07-28 15:02:15,210 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/bitvector-regression/integerpromotion-2.c [2020-07-28 15:02:15,277 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b46cc0247/424509b212d94d55aa5b2eea4f17820a/FLAGcee1d5bbe [2020-07-28 15:02:15,711 INFO L306 CDTParser]: Found 1 translation units. [2020-07-28 15:02:15,712 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/bitvector-regression/integerpromotion-2.c [2020-07-28 15:02:15,719 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b46cc0247/424509b212d94d55aa5b2eea4f17820a/FLAGcee1d5bbe [2020-07-28 15:02:16,094 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b46cc0247/424509b212d94d55aa5b2eea4f17820a [2020-07-28 15:02:16,097 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-28 15:02:16,100 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-07-28 15:02:16,101 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-28 15:02:16,101 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-28 15:02:16,106 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-28 15:02:16,107 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.07 03:02:16" (1/1) ... [2020-07-28 15:02:16,110 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@585c6ced and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 03:02:16, skipping insertion in model container [2020-07-28 15:02:16,110 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.07 03:02:16" (1/1) ... [2020-07-28 15:02:16,118 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-28 15:02:16,136 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-28 15:02:16,331 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-28 15:02:16,338 INFO L203 MainTranslator]: Completed pre-run [2020-07-28 15:02:16,353 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-28 15:02:16,368 INFO L208 MainTranslator]: Completed translation [2020-07-28 15:02:16,369 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 03:02:16 WrapperNode [2020-07-28 15:02:16,369 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-28 15:02:16,370 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-07-28 15:02:16,370 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-07-28 15:02:16,370 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-07-28 15:02:16,379 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 03:02:16" (1/1) ... [2020-07-28 15:02:16,386 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 03:02:16" (1/1) ... [2020-07-28 15:02:16,404 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-07-28 15:02:16,405 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-28 15:02:16,405 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-28 15:02:16,405 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-28 15:02:16,472 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 03:02:16" (1/1) ... [2020-07-28 15:02:16,472 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 03:02:16" (1/1) ... [2020-07-28 15:02:16,473 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 03:02:16" (1/1) ... [2020-07-28 15:02:16,474 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 03:02:16" (1/1) ... [2020-07-28 15:02:16,477 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 03:02:16" (1/1) ... [2020-07-28 15:02:16,480 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 03:02:16" (1/1) ... [2020-07-28 15:02:16,481 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 03:02:16" (1/1) ... [2020-07-28 15:02:16,482 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-28 15:02:16,482 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-28 15:02:16,483 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-28 15:02:16,483 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-28 15:02:16,484 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 03:02:16" (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 15:02:16,540 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-28 15:02:16,541 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-28 15:02:16,687 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-28 15:02:16,687 INFO L295 CfgBuilder]: Removed 4 assume(true) statements. [2020-07-28 15:02:16,691 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.07 03:02:16 BoogieIcfgContainer [2020-07-28 15:02:16,691 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-28 15:02:16,692 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-28 15:02:16,692 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-28 15:02:16,695 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-28 15:02:16,695 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.07 03:02:16" (1/3) ... [2020-07-28 15:02:16,696 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@72997ced and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.07 03:02:16, skipping insertion in model container [2020-07-28 15:02:16,696 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 03:02:16" (2/3) ... [2020-07-28 15:02:16,696 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@72997ced and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.07 03:02:16, skipping insertion in model container [2020-07-28 15:02:16,697 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.07 03:02:16" (3/3) ... [2020-07-28 15:02:16,698 INFO L109 eAbstractionObserver]: Analyzing ICFG integerpromotion-2.c [2020-07-28 15:02:16,708 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-07-28 15:02:16,715 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-28 15:02:16,728 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-28 15:02:16,747 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-28 15:02:16,748 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-28 15:02:16,748 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-07-28 15:02:16,748 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-28 15:02:16,748 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-28 15:02:16,748 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-28 15:02:16,748 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-28 15:02:16,749 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-28 15:02:16,759 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states. [2020-07-28 15:02:16,764 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2020-07-28 15:02:16,764 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 15:02:16,765 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1] [2020-07-28 15:02:16,766 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 15:02:16,771 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 15:02:16,771 INFO L82 PathProgramCache]: Analyzing trace with hash 30884, now seen corresponding path program 1 times [2020-07-28 15:02:16,781 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-07-28 15:02:16,781 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [437645570] [2020-07-28 15:02:16,781 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2020-07-28 15:02:16,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 15:02:16,824 WARN L261 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 3 conjunts are in the unsatisfiable core [2020-07-28 15:02:16,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 15:02:16,836 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-28 15:02:16,920 INFO L280 TraceCheckUtils]: 0: Hoare triple {10#true} havoc main_#res;havoc main_~port~0, main_~result_8~0;main_~port~0 := 90bv8;main_~result_8~0 := ~bvashr32(~bvnot32(~zero_extendFrom8To32(main_~port~0)), 4bv32)[8:0]; {15#(= (bvadd ULTIMATE.start_main_~result_8~0 (_ bv6 8)) (_ bv0 8))} is VALID [2020-07-28 15:02:16,922 INFO L280 TraceCheckUtils]: 1: Hoare triple {15#(= (bvadd ULTIMATE.start_main_~result_8~0 (_ bv6 8)) (_ bv0 8))} assume 250bv32 != ~zero_extendFrom8To32(main_~result_8~0); {11#false} is VALID [2020-07-28 15:02:16,923 INFO L280 TraceCheckUtils]: 2: Hoare triple {11#false} assume !false; {11#false} is VALID [2020-07-28 15:02:16,926 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-28 15:02:16,927 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-28 15:02:16,943 INFO L280 TraceCheckUtils]: 2: Hoare triple {11#false} assume !false; {11#false} is VALID [2020-07-28 15:02:16,944 INFO L280 TraceCheckUtils]: 1: Hoare triple {15#(= (bvadd ULTIMATE.start_main_~result_8~0 (_ bv6 8)) (_ bv0 8))} assume 250bv32 != ~zero_extendFrom8To32(main_~result_8~0); {11#false} is VALID [2020-07-28 15:02:16,946 INFO L280 TraceCheckUtils]: 0: Hoare triple {10#true} havoc main_#res;havoc main_~port~0, main_~result_8~0;main_~port~0 := 90bv8;main_~result_8~0 := ~bvashr32(~bvnot32(~zero_extendFrom8To32(main_~port~0)), 4bv32)[8:0]; {15#(= (bvadd ULTIMATE.start_main_~result_8~0 (_ bv6 8)) (_ bv0 8))} is VALID [2020-07-28 15:02:16,947 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-28 15:02:16,948 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [437645570] [2020-07-28 15:02:16,949 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-07-28 15:02:16,949 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2020-07-28 15:02:16,950 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [782255129] [2020-07-28 15:02:16,957 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 3 [2020-07-28 15:02:16,959 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-28 15:02:16,964 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states. [2020-07-28 15:02:16,975 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 3 edges. 3 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 15:02:16,976 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-28 15:02:16,976 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-07-28 15:02:16,987 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-28 15:02:16,988 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-28 15:02:16,991 INFO L87 Difference]: Start difference. First operand 7 states. Second operand 3 states. [2020-07-28 15:02:17,032 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 15:02:17,033 INFO L93 Difference]: Finished difference Result 10 states and 9 transitions. [2020-07-28 15:02:17,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-28 15:02:17,033 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 3 [2020-07-28 15:02:17,033 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-28 15:02:17,035 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-28 15:02:17,039 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 9 transitions. [2020-07-28 15:02:17,039 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-28 15:02:17,040 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 9 transitions. [2020-07-28 15:02:17,041 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states and 9 transitions. [2020-07-28 15:02:17,063 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 9 edges. 9 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 15:02:17,069 INFO L225 Difference]: With dead ends: 10 [2020-07-28 15:02:17,070 INFO L226 Difference]: Without dead ends: 0 [2020-07-28 15:02:17,072 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-28 15:02:17,086 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-07-28 15:02:17,091 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-07-28 15:02:17,091 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-28 15:02:17,092 INFO L82 GeneralOperation]: Start isEquivalent. First operand 0 states. Second operand 0 states. [2020-07-28 15:02:17,092 INFO L74 IsIncluded]: Start isIncluded. First operand 0 states. Second operand 0 states. [2020-07-28 15:02:17,093 INFO L87 Difference]: Start difference. First operand 0 states. Second operand 0 states. [2020-07-28 15:02:17,093 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 15:02:17,093 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2020-07-28 15:02:17,093 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-28 15:02:17,094 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 15:02:17,094 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 15:02:17,094 INFO L74 IsIncluded]: Start isIncluded. First operand 0 states. Second operand 0 states. [2020-07-28 15:02:17,094 INFO L87 Difference]: Start difference. First operand 0 states. Second operand 0 states. [2020-07-28 15:02:17,094 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 15:02:17,094 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2020-07-28 15:02:17,094 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-28 15:02:17,095 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 15:02:17,095 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 15:02:17,095 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-28 15:02:17,095 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-28 15:02:17,095 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-07-28 15:02:17,096 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-07-28 15:02:17,097 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 3 [2020-07-28 15:02:17,097 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-28 15:02:17,097 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-28 15:02:17,097 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-28 15:02:17,097 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-28 15:02:17,097 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 15:02:17,308 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-07-28 15:02:17,311 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-07-28 15:02:17,354 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-07-28 15:02:17,355 INFO L268 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-07-28 15:02:17,355 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-07-28 15:02:17,355 INFO L268 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 12) no Hoare annotation was computed. [2020-07-28 15:02:17,356 INFO L264 CegarLoopResult]: At program point L13(lines 3 14) the Hoare annotation is: (= (bvadd ULTIMATE.start_main_~result_8~0 (_ bv6 8)) (_ bv0 8)) [2020-07-28 15:02:17,356 INFO L264 CegarLoopResult]: At program point L8(lines 3 14) the Hoare annotation is: false [2020-07-28 15:02:17,356 INFO L268 CegarLoopResult]: For program point L7(lines 7 9) no Hoare annotation was computed. [2020-07-28 15:02:17,360 WARN L170 areAnnotationChecker]: ULTIMATE.startENTRY has no Hoare annotation [2020-07-28 15:02:17,360 WARN L170 areAnnotationChecker]: L7 has no Hoare annotation [2020-07-28 15:02:17,360 WARN L170 areAnnotationChecker]: L7 has no Hoare annotation [2020-07-28 15:02:17,361 WARN L170 areAnnotationChecker]: ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION has no Hoare annotation [2020-07-28 15:02:17,361 WARN L170 areAnnotationChecker]: ULTIMATE.startFINAL has no Hoare annotation [2020-07-28 15:02:17,361 WARN L170 areAnnotationChecker]: ULTIMATE.startFINAL has no Hoare annotation [2020-07-28 15:02:17,361 INFO L163 areAnnotationChecker]: CFG has 1 edges. 1 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. 0 times interpolants missing. [2020-07-28 15:02:17,370 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.07 03:02:17 BoogieIcfgContainer [2020-07-28 15:02:17,370 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-28 15:02:17,370 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-07-28 15:02:17,370 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-07-28 15:02:17,371 INFO L275 PluginConnector]: Witness Printer initialized [2020-07-28 15:02:17,372 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.07 03:02:16" (3/4) ... [2020-07-28 15:02:17,375 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-07-28 15:02:17,385 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2020-07-28 15:02:17,385 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2020-07-28 15:02:17,422 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-07-28 15:02:17,422 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-07-28 15:02:17,425 INFO L168 Benchmark]: Toolchain (without parser) took 1325.89 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 144.7 MB). Free memory was 954.9 MB in the beginning and 1.1 GB in the end (delta: -128.6 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. [2020-07-28 15:02:17,425 INFO L168 Benchmark]: CDTParser took 0.24 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 15:02:17,426 INFO L168 Benchmark]: CACSL2BoogieTranslator took 268.35 ms. Allocated memory is still 1.0 GB. Free memory was 954.9 MB in the beginning and 944.1 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2020-07-28 15:02:17,427 INFO L168 Benchmark]: Boogie Procedure Inliner took 34.36 ms. Allocated memory is still 1.0 GB. Free memory is still 944.1 MB. There was no memory consumed. Max. memory is 11.5 GB. [2020-07-28 15:02:17,428 INFO L168 Benchmark]: Boogie Preprocessor took 77.49 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 144.7 MB). Free memory was 944.1 MB in the beginning and 1.1 GB in the end (delta: -190.5 MB). Peak memory consumption was 9.7 MB. Max. memory is 11.5 GB. [2020-07-28 15:02:17,429 INFO L168 Benchmark]: RCFGBuilder took 208.65 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: 11.0 MB). Peak memory consumption was 11.0 MB. Max. memory is 11.5 GB. [2020-07-28 15:02:17,430 INFO L168 Benchmark]: TraceAbstraction took 678.08 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: 40.1 MB). Peak memory consumption was 40.1 MB. Max. memory is 11.5 GB. [2020-07-28 15:02:17,430 INFO L168 Benchmark]: Witness Printer took 51.74 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 15:02:17,434 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 0.24 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 268.35 ms. Allocated memory is still 1.0 GB. Free memory was 954.9 MB in the beginning and 944.1 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 34.36 ms. Allocated memory is still 1.0 GB. Free memory is still 944.1 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 77.49 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 144.7 MB). Free memory was 944.1 MB in the beginning and 1.1 GB in the end (delta: -190.5 MB). Peak memory consumption was 9.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 208.65 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: 11.0 MB). Peak memory consumption was 11.0 MB. Max. memory is 11.5 GB. * TraceAbstraction took 678.08 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: 40.1 MB). Peak memory consumption was 40.1 MB. Max. memory is 11.5 GB. * Witness Printer took 51.74 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: - PositiveResult [Line: 12]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 3]: Loop Invariant Derived loop invariant: ~bvadd64(result_8, 6bv8) == 0bv8 - InvariantResult [Line: 3]: Loop Invariant Derived loop invariant: 0 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 7 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 0.5s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 3 SDtfs, 3 SDslu, 0 SDs, 0 SdLazy, 1 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 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: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 2 LocationsWithAnnotation, 2 PreInvPairs, 3 NumberOfFragments, 6 HoareAnnotationTreeSize, 2 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 2 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 3 NumberOfCodeBlocks, 3 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 4 ConstructedInterpolants, 0 QuantifiedInterpolants, 24 SizeOfPredicates, 2 NumberOfNonLiveVariables, 6 ConjunctsInSsa, 3 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 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 correct! Received shutdown request...