./Ultimate.py --spec /storage/repos/svcomp/c/properties/unreach-call.prp --file /storage/repos/svcomp/c/loops/nec40_true-unreach-call_true-termination.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 91b1670e Calling Ultimate with: java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/svcomp/c/loops/nec40_true-unreach-call_true-termination.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash fffaea79f968c931abbf923bf574b15b9c605c6a .......................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/svcomp/c/loops/nec40_true-unreach-call_true-termination.i -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 fffaea79f968c931abbf923bf574b15b9c605c6a ........................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: UnsupportedOperationException: translation of (const (_ BitVec 32) (Array (_ BitVec 32) (_ BitVec 32))) not yet implemented, please contact Matthias --- Real Ultimate output --- This is Ultimate 0.1.24-91b1670 [2018-11-28 18:17:46,657 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-28 18:17:46,659 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-28 18:17:46,671 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-28 18:17:46,671 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-28 18:17:46,672 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-28 18:17:46,674 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-28 18:17:46,676 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-28 18:17:46,678 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-28 18:17:46,679 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-28 18:17:46,680 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-28 18:17:46,680 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-28 18:17:46,681 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-28 18:17:46,683 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-28 18:17:46,684 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-28 18:17:46,685 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-28 18:17:46,686 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-28 18:17:46,688 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-28 18:17:46,690 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-28 18:17:46,692 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-28 18:17:46,693 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-28 18:17:46,695 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-28 18:17:46,698 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-28 18:17:46,698 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-28 18:17:46,699 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-28 18:17:46,700 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-28 18:17:46,701 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-28 18:17:46,702 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-28 18:17:46,703 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-28 18:17:46,705 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-28 18:17:46,705 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-28 18:17:46,706 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-28 18:17:46,706 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-28 18:17:46,706 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-28 18:17:46,708 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-28 18:17:46,709 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-28 18:17:46,709 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-11-28 18:17:46,724 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-28 18:17:46,725 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-28 18:17:46,725 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-28 18:17:46,726 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-28 18:17:46,727 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-28 18:17:46,727 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-28 18:17:46,727 INFO L133 SettingsManager]: * Use SBE=true [2018-11-28 18:17:46,727 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-28 18:17:46,727 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-28 18:17:46,728 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-28 18:17:46,728 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-28 18:17:46,728 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-28 18:17:46,728 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-28 18:17:46,728 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-28 18:17:46,728 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-28 18:17:46,730 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-28 18:17:46,730 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-28 18:17:46,730 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-28 18:17:46,730 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-28 18:17:46,731 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-28 18:17:46,731 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-28 18:17:46,731 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-28 18:17:46,731 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-28 18:17:46,731 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-28 18:17:46,731 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-28 18:17:46,732 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-28 18:17:46,733 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-28 18:17:46,733 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-28 18:17:46,733 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-28 18:17:46,733 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-28 18:17:46,734 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true 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 -> fffaea79f968c931abbf923bf574b15b9c605c6a [2018-11-28 18:17:46,771 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-28 18:17:46,784 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-28 18:17:46,788 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-28 18:17:46,790 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-28 18:17:46,791 INFO L276 PluginConnector]: CDTParser initialized [2018-11-28 18:17:46,792 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/loops/nec40_true-unreach-call_true-termination.i [2018-11-28 18:17:46,868 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7c2dbd0ed/3267f86a1213445c92adcf39aea8feff/FLAG45910d283 [2018-11-28 18:17:47,318 INFO L307 CDTParser]: Found 1 translation units. [2018-11-28 18:17:47,319 INFO L161 CDTParser]: Scanning /storage/repos/svcomp/c/loops/nec40_true-unreach-call_true-termination.i [2018-11-28 18:17:47,328 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7c2dbd0ed/3267f86a1213445c92adcf39aea8feff/FLAG45910d283 [2018-11-28 18:17:47,675 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7c2dbd0ed/3267f86a1213445c92adcf39aea8feff [2018-11-28 18:17:47,678 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-28 18:17:47,679 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-28 18:17:47,680 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-28 18:17:47,681 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-28 18:17:47,684 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-28 18:17:47,685 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 06:17:47" (1/1) ... [2018-11-28 18:17:47,689 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@15cb709d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:17:47, skipping insertion in model container [2018-11-28 18:17:47,690 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 06:17:47" (1/1) ... [2018-11-28 18:17:47,698 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-28 18:17:47,715 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-28 18:17:47,891 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 18:17:47,922 INFO L191 MainTranslator]: Completed pre-run [2018-11-28 18:17:47,942 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 18:17:47,971 INFO L195 MainTranslator]: Completed translation [2018-11-28 18:17:47,972 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:17:47 WrapperNode [2018-11-28 18:17:47,972 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-28 18:17:47,973 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-28 18:17:47,974 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-28 18:17:47,974 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-28 18:17:47,984 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:17:47" (1/1) ... [2018-11-28 18:17:47,993 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:17:47" (1/1) ... [2018-11-28 18:17:48,001 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-28 18:17:48,002 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-28 18:17:48,002 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-28 18:17:48,002 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-28 18:17:48,013 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:17:47" (1/1) ... [2018-11-28 18:17:48,014 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:17:47" (1/1) ... [2018-11-28 18:17:48,015 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:17:47" (1/1) ... [2018-11-28 18:17:48,015 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:17:47" (1/1) ... [2018-11-28 18:17:48,024 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:17:47" (1/1) ... [2018-11-28 18:17:48,029 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:17:47" (1/1) ... [2018-11-28 18:17:48,030 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:17:47" (1/1) ... [2018-11-28 18:17:48,032 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-28 18:17:48,033 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-28 18:17:48,033 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-28 18:17:48,033 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-28 18:17:48,035 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:17:47" (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 [2018-11-28 18:17:48,171 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-11-28 18:17:48,172 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-28 18:17:48,172 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-28 18:17:48,172 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-28 18:17:48,172 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-28 18:17:48,172 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-28 18:17:48,173 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-11-28 18:17:48,173 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-28 18:17:48,173 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-28 18:17:48,173 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2018-11-28 18:17:48,173 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2018-11-28 18:17:48,488 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-28 18:17:48,488 INFO L280 CfgBuilder]: Removed 1 assue(true) statements. [2018-11-28 18:17:48,489 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 06:17:48 BoogieIcfgContainer [2018-11-28 18:17:48,489 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-28 18:17:48,490 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-28 18:17:48,500 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-28 18:17:48,504 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-28 18:17:48,510 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 06:17:47" (1/3) ... [2018-11-28 18:17:48,511 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ecc2705 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 06:17:48, skipping insertion in model container [2018-11-28 18:17:48,511 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:17:47" (2/3) ... [2018-11-28 18:17:48,512 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ecc2705 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 06:17:48, skipping insertion in model container [2018-11-28 18:17:48,513 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 06:17:48" (3/3) ... [2018-11-28 18:17:48,515 INFO L112 eAbstractionObserver]: Analyzing ICFG nec40_true-unreach-call_true-termination.i [2018-11-28 18:17:48,543 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-28 18:17:48,552 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-28 18:17:48,574 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-28 18:17:48,607 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-28 18:17:48,608 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-28 18:17:48,608 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-28 18:17:48,608 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-28 18:17:48,608 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-28 18:17:48,608 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-28 18:17:48,609 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-28 18:17:48,609 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-28 18:17:48,609 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-28 18:17:48,636 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states. [2018-11-28 18:17:48,641 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-11-28 18:17:48,642 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 18:17:48,643 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 18:17:48,645 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 18:17:48,650 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 18:17:48,651 INFO L82 PathProgramCache]: Analyzing trace with hash -91485938, now seen corresponding path program 1 times [2018-11-28 18:17:48,652 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 18:17:48,653 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 18:17:48,697 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 18:17:48,697 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 18:17:48,697 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 18:17:48,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 18:17:48,802 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 18:17:48,805 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 18:17:48,805 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-28 18:17:48,809 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-11-28 18:17:48,822 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-28 18:17:48,823 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-28 18:17:48,825 INFO L87 Difference]: Start difference. First operand 23 states. Second operand 2 states. [2018-11-28 18:17:48,848 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 18:17:48,848 INFO L93 Difference]: Finished difference Result 38 states and 45 transitions. [2018-11-28 18:17:48,848 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-28 18:17:48,850 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 14 [2018-11-28 18:17:48,850 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 18:17:48,858 INFO L225 Difference]: With dead ends: 38 [2018-11-28 18:17:48,859 INFO L226 Difference]: Without dead ends: 16 [2018-11-28 18:17:48,862 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-28 18:17:48,878 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2018-11-28 18:17:48,894 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2018-11-28 18:17:48,895 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2018-11-28 18:17:48,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 16 transitions. [2018-11-28 18:17:48,898 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 16 transitions. Word has length 14 [2018-11-28 18:17:48,899 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 18:17:48,899 INFO L480 AbstractCegarLoop]: Abstraction has 16 states and 16 transitions. [2018-11-28 18:17:48,899 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-11-28 18:17:48,899 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 16 transitions. [2018-11-28 18:17:48,900 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-11-28 18:17:48,900 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 18:17:48,900 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 18:17:48,901 INFO L423 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 18:17:48,901 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 18:17:48,901 INFO L82 PathProgramCache]: Analyzing trace with hash 883179888, now seen corresponding path program 1 times [2018-11-28 18:17:48,901 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 18:17:48,902 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 18:17:48,903 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 18:17:48,903 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 18:17:48,903 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 18:17:48,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 18:17:49,023 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 18:17:49,023 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 18:17:49,024 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-28 18:17:49,025 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-28 18:17:49,026 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-28 18:17:49,026 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-28 18:17:49,026 INFO L87 Difference]: Start difference. First operand 16 states and 16 transitions. Second operand 3 states. [2018-11-28 18:17:49,092 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 18:17:49,092 INFO L93 Difference]: Finished difference Result 26 states and 26 transitions. [2018-11-28 18:17:49,093 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-28 18:17:49,093 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 15 [2018-11-28 18:17:49,093 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 18:17:49,094 INFO L225 Difference]: With dead ends: 26 [2018-11-28 18:17:49,095 INFO L226 Difference]: Without dead ends: 18 [2018-11-28 18:17:49,096 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-28 18:17:49,096 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2018-11-28 18:17:49,100 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2018-11-28 18:17:49,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2018-11-28 18:17:49,101 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 18 transitions. [2018-11-28 18:17:49,101 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 18 transitions. Word has length 15 [2018-11-28 18:17:49,101 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 18:17:49,101 INFO L480 AbstractCegarLoop]: Abstraction has 18 states and 18 transitions. [2018-11-28 18:17:49,102 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-28 18:17:49,102 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 18 transitions. [2018-11-28 18:17:49,102 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-11-28 18:17:49,102 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 18:17:49,104 INFO L402 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 18:17:49,104 INFO L423 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 18:17:49,104 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 18:17:49,104 INFO L82 PathProgramCache]: Analyzing trace with hash 975532875, now seen corresponding path program 1 times [2018-11-28 18:17:49,104 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 18:17:49,104 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 18:17:49,106 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 18:17:49,107 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 18:17:49,107 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 18:17:49,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 18:17:49,381 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 18:17:49,381 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 18:17:49,381 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-28 18:17:49,381 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-28 18:17:49,382 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-28 18:17:49,382 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2018-11-28 18:17:49,382 INFO L87 Difference]: Start difference. First operand 18 states and 18 transitions. Second operand 6 states. [2018-11-28 18:17:49,569 WARN L180 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 17 DAG size of output: 12 [2018-11-28 18:17:49,572 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 18:17:49,572 INFO L93 Difference]: Finished difference Result 18 states and 18 transitions. [2018-11-28 18:17:49,572 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-28 18:17:49,572 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 17 [2018-11-28 18:17:49,574 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 18:17:49,574 INFO L225 Difference]: With dead ends: 18 [2018-11-28 18:17:49,574 INFO L226 Difference]: Without dead ends: 0 [2018-11-28 18:17:49,575 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2018-11-28 18:17:49,575 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-28 18:17:49,575 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-28 18:17:49,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-28 18:17:49,575 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-28 18:17:49,577 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 17 [2018-11-28 18:17:49,577 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 18:17:49,577 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-28 18:17:49,577 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-28 18:17:49,577 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-28 18:17:49,577 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-28 18:17:49,583 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-28 18:17:49,701 WARN L180 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 12 [2018-11-28 18:17:49,959 WARN L180 SmtUtils]: Spent 256.00 ms on a formula simplification. DAG size of input: 21 DAG size of output: 19 [2018-11-28 18:17:50,142 WARN L180 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 21 DAG size of output: 19 [2018-11-28 18:17:50,154 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-11-28 18:17:50,154 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2018-11-28 18:17:50,154 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-11-28 18:17:50,155 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-11-28 18:17:50,155 INFO L444 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: (and (not (= |~#x~0.base| |~#y~0.base|)) (= ~i~0 0) (= ((as const (Array Int Int)) 0) (select |#memory_int| |~#x~0.base|))) [2018-11-28 18:17:50,155 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-11-28 18:17:50,155 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-11-28 18:17:50,155 INFO L448 ceAbstractionStarter]: For program point L25(lines 25 26) no Hoare annotation was computed. [2018-11-28 18:17:50,155 INFO L448 ceAbstractionStarter]: For program point mainEXIT(lines 14 29) no Hoare annotation was computed. [2018-11-28 18:17:50,155 INFO L448 ceAbstractionStarter]: For program point mainFINAL(lines 14 29) no Hoare annotation was computed. [2018-11-28 18:17:50,156 INFO L444 ceAbstractionStarter]: At program point mainENTRY(lines 14 29) the Hoare annotation is: (let ((.cse0 ((as const (Array Int Int)) 0))) (or (not (= 0 |old(~i~0)|)) (and (= ~i~0 0) (= .cse0 (select |#memory_int| |~#x~0.base|))) (not (= .cse0 (select |old(#memory_int)| |~#x~0.base|))) (= |~#y~0.base| |~#x~0.base|))) [2018-11-28 18:17:50,156 INFO L444 ceAbstractionStarter]: At program point L26(line 26) the Hoare annotation is: (or (not (= 0 |old(~i~0)|)) (not (= ((as const (Array Int Int)) 0) (select |old(#memory_int)| |~#x~0.base|))) (= |~#y~0.base| |~#x~0.base|)) [2018-11-28 18:17:50,156 INFO L448 ceAbstractionStarter]: For program point L24(lines 24 26) no Hoare annotation was computed. [2018-11-28 18:17:50,156 INFO L448 ceAbstractionStarter]: For program point L24-1(lines 24 26) no Hoare annotation was computed. [2018-11-28 18:17:50,157 INFO L448 ceAbstractionStarter]: For program point L18-1(lines 18 21) no Hoare annotation was computed. [2018-11-28 18:17:50,157 INFO L444 ceAbstractionStarter]: At program point L18-3(lines 18 21) the Hoare annotation is: (let ((.cse0 ((as const (Array Int Int)) 0))) (or (not (= 0 |old(~i~0)|)) (and (= ~i~0 0) (= .cse0 (select |#memory_int| |~#x~0.base|))) (not (= .cse0 (select |old(#memory_int)| |~#x~0.base|))) (= |~#y~0.base| |~#x~0.base|))) [2018-11-28 18:17:50,158 INFO L448 ceAbstractionStarter]: For program point L18-4(lines 18 21) no Hoare annotation was computed. [2018-11-28 18:17:50,158 INFO L448 ceAbstractionStarter]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 5) no Hoare annotation was computed. [2018-11-28 18:17:50,158 INFO L451 ceAbstractionStarter]: At program point __VERIFIER_assertENTRY(lines 3 8) the Hoare annotation is: true [2018-11-28 18:17:50,158 INFO L448 ceAbstractionStarter]: For program point __VERIFIER_assertEXIT(lines 3 8) no Hoare annotation was computed. [2018-11-28 18:17:50,158 INFO L448 ceAbstractionStarter]: For program point L5(line 5) no Hoare annotation was computed. [2018-11-28 18:17:50,158 INFO L448 ceAbstractionStarter]: For program point L4(lines 4 6) no Hoare annotation was computed. [2018-11-28 18:17:50,158 INFO L448 ceAbstractionStarter]: For program point L4-2(lines 3 8) no Hoare annotation was computed. [2018-11-28 18:17:50,163 FATAL L292 ToolchainWalker]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.IllegalArgumentException: unknown symbol (const Int (Array Int Int)) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:238) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:129) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:165) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:129) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:165) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:129) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:165) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:129) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.RCFGBacktranslator.translateExpression(RCFGBacktranslator.java:394) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.RCFGBacktranslator.translateExpression(RCFGBacktranslator.java:1) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ModelTranslationContainer.translateExpression(ModelTranslationContainer.java:105) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ModelTranslationContainer.translateExpressionToString(ModelTranslationContainer.java:89) at de.uni_freiburg.informatik.ultimate.core.lib.results.InvariantResult.getLongDescription(InvariantResult.java:65) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ResultService.reportResult(ResultService.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.reportResult(TraceAbstractionStarter.java:560) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.createInvariantResults(TraceAbstractionStarter.java:257) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:214) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:126) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:316) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2018-11-28 18:17:50,166 INFO L168 Benchmark]: Toolchain (without parser) took 2487.28 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 137.4 MB). Free memory was 947.3 MB in the beginning and 1.1 GB in the end (delta: -104.2 MB). Peak memory consumption was 33.2 MB. Max. memory is 11.5 GB. [2018-11-28 18:17:50,168 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 1.0 GB. Free memory is still 972.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 18:17:50,170 INFO L168 Benchmark]: CACSL2BoogieTranslator took 292.02 ms. Allocated memory is still 1.0 GB. Free memory was 947.3 MB in the beginning and 936.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-28 18:17:50,171 INFO L168 Benchmark]: Boogie Procedure Inliner took 28.28 ms. Allocated memory is still 1.0 GB. Free memory is still 936.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 18:17:50,172 INFO L168 Benchmark]: Boogie Preprocessor took 30.75 ms. Allocated memory is still 1.0 GB. Free memory was 936.6 MB in the beginning and 931.2 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-11-28 18:17:50,173 INFO L168 Benchmark]: RCFGBuilder took 456.43 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 137.4 MB). Free memory was 931.2 MB in the beginning and 1.1 GB in the end (delta: -181.5 MB). Peak memory consumption was 13.1 MB. Max. memory is 11.5 GB. [2018-11-28 18:17:50,174 INFO L168 Benchmark]: TraceAbstraction took 1674.45 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: 61.2 MB). Peak memory consumption was 61.2 MB. Max. memory is 11.5 GB. [2018-11-28 18:17:50,182 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 1.0 GB. Free memory is still 972.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 292.02 ms. Allocated memory is still 1.0 GB. Free memory was 947.3 MB in the beginning and 936.6 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 28.28 ms. Allocated memory is still 1.0 GB. Free memory is still 936.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 30.75 ms. Allocated memory is still 1.0 GB. Free memory was 936.6 MB in the beginning and 931.2 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 456.43 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 137.4 MB). Free memory was 931.2 MB in the beginning and 1.1 GB in the end (delta: -181.5 MB). Peak memory consumption was 13.1 MB. Max. memory is 11.5 GB. * TraceAbstraction took 1674.45 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: 61.2 MB). Peak memory consumption was 61.2 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 5]: 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 - ExceptionOrErrorResult: IllegalArgumentException: unknown symbol (const Int (Array Int Int)) de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: IllegalArgumentException: unknown symbol (const Int (Array Int Int)): de.uni_freiburg.informatik.ultimate.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:238) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.24-91b1670 [2018-11-28 18:17:52,569 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-28 18:17:52,570 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-28 18:17:52,586 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-28 18:17:52,586 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-28 18:17:52,589 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-28 18:17:52,591 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-28 18:17:52,592 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-28 18:17:52,595 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-28 18:17:52,599 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-28 18:17:52,602 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-28 18:17:52,603 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-28 18:17:52,604 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-28 18:17:52,605 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-28 18:17:52,606 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-28 18:17:52,615 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-28 18:17:52,616 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-28 18:17:52,620 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-28 18:17:52,625 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-28 18:17:52,626 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-28 18:17:52,628 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-28 18:17:52,631 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-28 18:17:52,637 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-28 18:17:52,638 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-28 18:17:52,638 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-28 18:17:52,639 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-28 18:17:52,640 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-28 18:17:52,643 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-28 18:17:52,644 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-28 18:17:52,645 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-28 18:17:52,645 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-28 18:17:52,650 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-28 18:17:52,650 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-28 18:17:52,650 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-28 18:17:52,651 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-28 18:17:52,653 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-28 18:17:52,654 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2018-11-28 18:17:52,679 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-28 18:17:52,680 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-28 18:17:52,681 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-28 18:17:52,682 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-28 18:17:52,683 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-28 18:17:52,683 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-28 18:17:52,684 INFO L133 SettingsManager]: * Use SBE=true [2018-11-28 18:17:52,684 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-28 18:17:52,684 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-28 18:17:52,684 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-28 18:17:52,684 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-28 18:17:52,685 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-28 18:17:52,686 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-28 18:17:52,686 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-28 18:17:52,686 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-11-28 18:17:52,686 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-11-28 18:17:52,687 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-28 18:17:52,687 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-28 18:17:52,687 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-28 18:17:52,687 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-28 18:17:52,687 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-28 18:17:52,687 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-28 18:17:52,689 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-28 18:17:52,690 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-28 18:17:52,690 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-28 18:17:52,690 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-28 18:17:52,690 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-28 18:17:52,690 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-28 18:17:52,690 INFO L133 SettingsManager]: * Trace refinement strategy=WOLF [2018-11-28 18:17:52,691 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-28 18:17:52,692 INFO L133 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2018-11-28 18:17:52,692 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-11-28 18:17:52,692 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true 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 -> fffaea79f968c931abbf923bf574b15b9c605c6a [2018-11-28 18:17:52,757 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-28 18:17:52,778 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-28 18:17:52,787 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-28 18:17:52,789 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-28 18:17:52,789 INFO L276 PluginConnector]: CDTParser initialized [2018-11-28 18:17:52,790 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/loops/nec40_true-unreach-call_true-termination.i [2018-11-28 18:17:52,852 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c7bfe33ca/f590866921474c8194176a0d760a246c/FLAG6ae597879 [2018-11-28 18:17:53,292 INFO L307 CDTParser]: Found 1 translation units. [2018-11-28 18:17:53,293 INFO L161 CDTParser]: Scanning /storage/repos/svcomp/c/loops/nec40_true-unreach-call_true-termination.i [2018-11-28 18:17:53,298 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c7bfe33ca/f590866921474c8194176a0d760a246c/FLAG6ae597879 [2018-11-28 18:17:53,693 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c7bfe33ca/f590866921474c8194176a0d760a246c [2018-11-28 18:17:53,700 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-28 18:17:53,702 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-28 18:17:53,703 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-28 18:17:53,703 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-28 18:17:53,707 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-28 18:17:53,708 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 06:17:53" (1/1) ... [2018-11-28 18:17:53,712 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@456c51e8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:17:53, skipping insertion in model container [2018-11-28 18:17:53,712 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 06:17:53" (1/1) ... [2018-11-28 18:17:53,721 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-28 18:17:53,740 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-28 18:17:53,938 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 18:17:53,980 INFO L191 MainTranslator]: Completed pre-run [2018-11-28 18:17:54,013 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 18:17:54,051 INFO L195 MainTranslator]: Completed translation [2018-11-28 18:17:54,052 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:17:54 WrapperNode [2018-11-28 18:17:54,052 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-28 18:17:54,053 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-28 18:17:54,054 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-28 18:17:54,054 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-28 18:17:54,066 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:17:54" (1/1) ... [2018-11-28 18:17:54,077 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:17:54" (1/1) ... [2018-11-28 18:17:54,087 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-28 18:17:54,087 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-28 18:17:54,087 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-28 18:17:54,087 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-28 18:17:54,101 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:17:54" (1/1) ... [2018-11-28 18:17:54,101 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:17:54" (1/1) ... [2018-11-28 18:17:54,104 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:17:54" (1/1) ... [2018-11-28 18:17:54,106 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:17:54" (1/1) ... [2018-11-28 18:17:54,125 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:17:54" (1/1) ... [2018-11-28 18:17:54,133 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:17:54" (1/1) ... [2018-11-28 18:17:54,135 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:17:54" (1/1) ... [2018-11-28 18:17:54,147 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-28 18:17:54,147 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-28 18:17:54,147 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-28 18:17:54,148 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-28 18:17:54,150 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:17:54" (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 [2018-11-28 18:17:54,289 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-28 18:17:54,290 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-28 18:17:54,290 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-28 18:17:54,290 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2018-11-28 18:17:54,290 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-28 18:17:54,291 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-28 18:17:54,291 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-28 18:17:54,291 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-28 18:17:54,291 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2018-11-28 18:17:54,291 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2018-11-28 18:17:54,291 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2018-11-28 18:17:54,742 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-28 18:17:54,742 INFO L280 CfgBuilder]: Removed 1 assue(true) statements. [2018-11-28 18:17:54,743 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 06:17:54 BoogieIcfgContainer [2018-11-28 18:17:54,743 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-28 18:17:54,744 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-28 18:17:54,744 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-28 18:17:54,747 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-28 18:17:54,747 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 06:17:53" (1/3) ... [2018-11-28 18:17:54,748 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@78ea62a5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 06:17:54, skipping insertion in model container [2018-11-28 18:17:54,748 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:17:54" (2/3) ... [2018-11-28 18:17:54,748 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@78ea62a5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 06:17:54, skipping insertion in model container [2018-11-28 18:17:54,749 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 06:17:54" (3/3) ... [2018-11-28 18:17:54,750 INFO L112 eAbstractionObserver]: Analyzing ICFG nec40_true-unreach-call_true-termination.i [2018-11-28 18:17:54,760 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-28 18:17:54,768 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-28 18:17:54,786 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-28 18:17:54,822 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-28 18:17:54,823 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-28 18:17:54,823 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-28 18:17:54,823 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-28 18:17:54,823 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-28 18:17:54,824 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-28 18:17:54,824 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-28 18:17:54,824 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-28 18:17:54,824 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-28 18:17:54,841 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states. [2018-11-28 18:17:54,847 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-11-28 18:17:54,847 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 18:17:54,848 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 18:17:54,851 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 18:17:54,856 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 18:17:54,857 INFO L82 PathProgramCache]: Analyzing trace with hash -91485938, now seen corresponding path program 1 times [2018-11-28 18:17:54,861 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-28 18:17:54,862 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 2 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2018-11-28 18:17:54,890 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 18:17:54,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 18:17:54,965 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 18:17:54,984 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 18:17:54,985 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-28 18:17:54,989 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 18:17:54,990 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-28 18:17:54,993 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-11-28 18:17:55,005 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-28 18:17:55,006 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-28 18:17:55,008 INFO L87 Difference]: Start difference. First operand 23 states. Second operand 2 states. [2018-11-28 18:17:55,026 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 18:17:55,027 INFO L93 Difference]: Finished difference Result 38 states and 45 transitions. [2018-11-28 18:17:55,027 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-28 18:17:55,028 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 14 [2018-11-28 18:17:55,029 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 18:17:55,037 INFO L225 Difference]: With dead ends: 38 [2018-11-28 18:17:55,037 INFO L226 Difference]: Without dead ends: 16 [2018-11-28 18:17:55,041 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-28 18:17:55,059 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2018-11-28 18:17:55,074 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2018-11-28 18:17:55,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2018-11-28 18:17:55,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 16 transitions. [2018-11-28 18:17:55,077 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 16 transitions. Word has length 14 [2018-11-28 18:17:55,078 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 18:17:55,078 INFO L480 AbstractCegarLoop]: Abstraction has 16 states and 16 transitions. [2018-11-28 18:17:55,078 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-11-28 18:17:55,078 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 16 transitions. [2018-11-28 18:17:55,079 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-11-28 18:17:55,079 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 18:17:55,079 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 18:17:55,079 INFO L423 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 18:17:55,080 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 18:17:55,080 INFO L82 PathProgramCache]: Analyzing trace with hash 883179888, now seen corresponding path program 1 times [2018-11-28 18:17:55,080 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-28 18:17:55,080 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 3 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2018-11-28 18:17:55,098 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 18:17:55,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 18:17:55,163 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 18:17:55,237 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 18:17:55,237 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-28 18:17:55,242 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 18:17:55,242 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-28 18:17:55,243 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-28 18:17:55,244 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-28 18:17:55,244 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-28 18:17:55,244 INFO L87 Difference]: Start difference. First operand 16 states and 16 transitions. Second operand 3 states. [2018-11-28 18:17:55,286 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 18:17:55,287 INFO L93 Difference]: Finished difference Result 26 states and 26 transitions. [2018-11-28 18:17:55,288 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-28 18:17:55,288 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 15 [2018-11-28 18:17:55,288 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 18:17:55,289 INFO L225 Difference]: With dead ends: 26 [2018-11-28 18:17:55,290 INFO L226 Difference]: Without dead ends: 18 [2018-11-28 18:17:55,291 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-28 18:17:55,291 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2018-11-28 18:17:55,295 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2018-11-28 18:17:55,296 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2018-11-28 18:17:55,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 18 transitions. [2018-11-28 18:17:55,296 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 18 transitions. Word has length 15 [2018-11-28 18:17:55,297 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 18:17:55,297 INFO L480 AbstractCegarLoop]: Abstraction has 18 states and 18 transitions. [2018-11-28 18:17:55,297 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-28 18:17:55,297 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 18 transitions. [2018-11-28 18:17:55,298 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-11-28 18:17:55,298 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 18:17:55,298 INFO L402 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 18:17:55,299 INFO L423 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 18:17:55,299 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 18:17:55,299 INFO L82 PathProgramCache]: Analyzing trace with hash 975532875, now seen corresponding path program 1 times [2018-11-28 18:17:55,300 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-28 18:17:55,300 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 4 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2018-11-28 18:17:55,320 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 18:17:55,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 18:17:55,396 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 18:17:55,430 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 14 [2018-11-28 18:17:55,519 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 1 [2018-11-28 18:17:55,520 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-28 18:17:55,542 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-28 18:17:55,583 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 14 [2018-11-28 18:17:55,611 INFO L683 Elim1Store]: detected equality via solver [2018-11-28 18:17:55,613 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 17 [2018-11-28 18:17:55,614 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-28 18:17:55,717 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-28 18:17:55,734 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-28 18:17:55,735 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 3 variables, input treesize:23, output treesize:17 [2018-11-28 18:17:57,781 WARN L180 SmtUtils]: Spent 2.03 s on a formula simplification that was a NOOP. DAG size: 14 [2018-11-28 18:17:57,806 INFO L683 Elim1Store]: detected equality via solver [2018-11-28 18:17:57,807 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 24 [2018-11-28 18:17:57,809 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-28 18:17:57,830 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-28 18:17:57,830 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:27, output treesize:9 [2018-11-28 18:17:57,917 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 18:17:57,921 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-28 18:17:57,923 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 18:17:57,924 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-28 18:17:57,925 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-28 18:17:57,925 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-28 18:17:57,925 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-11-28 18:17:57,925 INFO L87 Difference]: Start difference. First operand 18 states and 18 transitions. Second operand 4 states. [2018-11-28 18:18:00,052 WARN L180 SmtUtils]: Spent 2.07 s on a formula simplification that was a NOOP. DAG size: 22 [2018-11-28 18:18:00,055 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 18:18:00,055 INFO L93 Difference]: Finished difference Result 18 states and 18 transitions. [2018-11-28 18:18:00,055 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-28 18:18:00,055 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 17 [2018-11-28 18:18:00,056 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 18:18:00,056 INFO L225 Difference]: With dead ends: 18 [2018-11-28 18:18:00,056 INFO L226 Difference]: Without dead ends: 0 [2018-11-28 18:18:00,057 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 13 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 4.2s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-11-28 18:18:00,057 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-28 18:18:00,057 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-28 18:18:00,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-28 18:18:00,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-28 18:18:00,058 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 17 [2018-11-28 18:18:00,058 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 18:18:00,058 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-28 18:18:00,058 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-28 18:18:00,058 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-28 18:18:00,058 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-28 18:18:00,063 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-28 18:18:02,155 WARN L180 SmtUtils]: Spent 2.05 s on a formula simplification that was a NOOP. DAG size: 16 [2018-11-28 18:18:06,327 WARN L180 SmtUtils]: Spent 4.17 s on a formula simplification that was a NOOP. DAG size: 30 [2018-11-28 18:18:10,399 WARN L180 SmtUtils]: Spent 4.03 s on a formula simplification that was a NOOP. DAG size: 30 [2018-11-28 18:18:12,462 WARN L180 SmtUtils]: Spent 2.06 s on a formula simplification that was a NOOP. DAG size: 18 [2018-11-28 18:18:12,465 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-11-28 18:18:12,466 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2018-11-28 18:18:12,466 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-11-28 18:18:12,466 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-11-28 18:18:12,466 INFO L444 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: (and (exists ((|~#y~0.base| (_ BitVec 32))) (and (not (= |~#x~0.base| |~#y~0.base|)) (= (select |#memory_int| |~#y~0.base|) ((as const (Array (_ BitVec 32) (_ BitVec 32))) (_ bv0 32))))) (= ((as const (Array (_ BitVec 32) (_ BitVec 32))) (_ bv0 32)) (select |#memory_int| |~#x~0.base|)) (= (_ bv0 32) ~i~0)) [2018-11-28 18:18:12,466 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-11-28 18:18:12,467 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-11-28 18:18:12,467 INFO L448 ceAbstractionStarter]: For program point L25(lines 25 26) no Hoare annotation was computed. [2018-11-28 18:18:12,467 INFO L448 ceAbstractionStarter]: For program point mainEXIT(lines 14 29) no Hoare annotation was computed. [2018-11-28 18:18:12,468 INFO L448 ceAbstractionStarter]: For program point mainFINAL(lines 14 29) no Hoare annotation was computed. [2018-11-28 18:18:12,468 INFO L444 ceAbstractionStarter]: At program point mainENTRY(lines 14 29) the Hoare annotation is: (let ((.cse0 ((as const (Array (_ BitVec 32) (_ BitVec 32))) (_ bv0 32)))) (or (and (exists ((|~#y~0.base| (_ BitVec 32))) (and (not (= |~#x~0.base| |~#y~0.base|)) (= (select |#memory_int| |~#y~0.base|) ((as const (Array (_ BitVec 32) (_ BitVec 32))) (_ bv0 32))))) (= .cse0 (select |#memory_int| |~#x~0.base|)) (= (_ bv0 32) ~i~0)) (forall ((|~#y~0.base| (_ BitVec 32))) (or (= |~#y~0.base| |~#x~0.base|) (not (= (select |old(#memory_int)| |~#y~0.base|) ((as const (Array (_ BitVec 32) (_ BitVec 32))) (_ bv0 32)))))) (not (= (select |old(#memory_int)| |~#x~0.base|) .cse0)) (not (= (_ bv0 32) |old(~i~0)|)))) [2018-11-28 18:18:12,468 INFO L444 ceAbstractionStarter]: At program point L26(line 26) the Hoare annotation is: (or (forall ((|~#y~0.base| (_ BitVec 32))) (or (= |~#y~0.base| |~#x~0.base|) (not (= (select |old(#memory_int)| |~#y~0.base|) ((as const (Array (_ BitVec 32) (_ BitVec 32))) (_ bv0 32)))))) (not (= (select |old(#memory_int)| |~#x~0.base|) ((as const (Array (_ BitVec 32) (_ BitVec 32))) (_ bv0 32)))) (not (= (_ bv0 32) |old(~i~0)|))) [2018-11-28 18:18:12,468 INFO L448 ceAbstractionStarter]: For program point L24(lines 24 26) no Hoare annotation was computed. [2018-11-28 18:18:12,469 INFO L448 ceAbstractionStarter]: For program point L24-1(lines 24 26) no Hoare annotation was computed. [2018-11-28 18:18:12,469 INFO L448 ceAbstractionStarter]: For program point L18-1(lines 18 21) no Hoare annotation was computed. [2018-11-28 18:18:12,469 INFO L444 ceAbstractionStarter]: At program point L18-3(lines 18 21) the Hoare annotation is: (let ((.cse0 ((as const (Array (_ BitVec 32) (_ BitVec 32))) (_ bv0 32)))) (or (and (exists ((|~#y~0.base| (_ BitVec 32))) (and (not (= |~#x~0.base| |~#y~0.base|)) (= (select |#memory_int| |~#y~0.base|) ((as const (Array (_ BitVec 32) (_ BitVec 32))) (_ bv0 32))))) (= .cse0 (select |#memory_int| |~#x~0.base|)) (= (_ bv0 32) ~i~0)) (forall ((|~#y~0.base| (_ BitVec 32))) (or (= |~#y~0.base| |~#x~0.base|) (not (= (select |old(#memory_int)| |~#y~0.base|) ((as const (Array (_ BitVec 32) (_ BitVec 32))) (_ bv0 32)))))) (not (= (select |old(#memory_int)| |~#x~0.base|) .cse0)) (not (= (_ bv0 32) |old(~i~0)|)))) [2018-11-28 18:18:12,469 INFO L448 ceAbstractionStarter]: For program point L18-4(lines 18 21) no Hoare annotation was computed. [2018-11-28 18:18:12,469 INFO L451 ceAbstractionStarter]: At program point __VERIFIER_assertENTRY(lines 3 8) the Hoare annotation is: true [2018-11-28 18:18:12,470 INFO L448 ceAbstractionStarter]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 5) no Hoare annotation was computed. [2018-11-28 18:18:12,470 INFO L448 ceAbstractionStarter]: For program point __VERIFIER_assertEXIT(lines 3 8) no Hoare annotation was computed. [2018-11-28 18:18:12,470 INFO L448 ceAbstractionStarter]: For program point L5(line 5) no Hoare annotation was computed. [2018-11-28 18:18:12,470 INFO L448 ceAbstractionStarter]: For program point L4(lines 4 6) no Hoare annotation was computed. [2018-11-28 18:18:12,470 INFO L448 ceAbstractionStarter]: For program point L4-2(lines 3 8) no Hoare annotation was computed. [2018-11-28 18:18:12,475 FATAL L292 ToolchainWalker]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.UnsupportedOperationException: translation of (const (_ BitVec 32) (Array (_ BitVec 32) (_ BitVec 32))) not yet implemented, please contact Matthias at de.uni_freiburg.informatik.ultimate.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:209) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:129) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:165) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:129) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:165) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:129) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:446) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:135) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:165) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:129) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:165) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:129) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.RCFGBacktranslator.translateExpression(RCFGBacktranslator.java:394) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.RCFGBacktranslator.translateExpression(RCFGBacktranslator.java:1) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ModelTranslationContainer.translateExpression(ModelTranslationContainer.java:105) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ModelTranslationContainer.translateExpressionToString(ModelTranslationContainer.java:89) at de.uni_freiburg.informatik.ultimate.core.lib.results.InvariantResult.getLongDescription(InvariantResult.java:65) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ResultService.reportResult(ResultService.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.reportResult(TraceAbstractionStarter.java:560) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.createInvariantResults(TraceAbstractionStarter.java:257) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:214) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:126) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:316) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2018-11-28 18:18:12,482 INFO L168 Benchmark]: Toolchain (without parser) took 18781.53 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 121.6 MB). Free memory was 952.7 MB in the beginning and 1.0 GB in the end (delta: -51.1 MB). Peak memory consumption was 70.6 MB. Max. memory is 11.5 GB. [2018-11-28 18:18:12,485 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 978.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 18:18:12,485 INFO L168 Benchmark]: CACSL2BoogieTranslator took 349.69 ms. Allocated memory is still 1.0 GB. Free memory was 952.7 MB in the beginning and 941.9 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-28 18:18:12,486 INFO L168 Benchmark]: Boogie Procedure Inliner took 33.44 ms. Allocated memory is still 1.0 GB. Free memory was 941.9 MB in the beginning and 936.6 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-11-28 18:18:12,488 INFO L168 Benchmark]: Boogie Preprocessor took 59.87 ms. Allocated memory is still 1.0 GB. Free memory is still 936.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 18:18:12,488 INFO L168 Benchmark]: RCFGBuilder took 595.74 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 121.6 MB). Free memory was 936.6 MB in the beginning and 1.1 GB in the end (delta: -154.4 MB). Peak memory consumption was 13.2 MB. Max. memory is 11.5 GB. [2018-11-28 18:18:12,489 INFO L168 Benchmark]: TraceAbstraction took 17734.41 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 87.2 MB). Peak memory consumption was 87.2 MB. Max. memory is 11.5 GB. [2018-11-28 18:18:12,495 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 978.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 349.69 ms. Allocated memory is still 1.0 GB. Free memory was 952.7 MB in the beginning and 941.9 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 33.44 ms. Allocated memory is still 1.0 GB. Free memory was 941.9 MB in the beginning and 936.6 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 59.87 ms. Allocated memory is still 1.0 GB. Free memory is still 936.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 595.74 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 121.6 MB). Free memory was 936.6 MB in the beginning and 1.1 GB in the end (delta: -154.4 MB). Peak memory consumption was 13.2 MB. Max. memory is 11.5 GB. * TraceAbstraction took 17734.41 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 87.2 MB). Peak memory consumption was 87.2 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 5]: 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 - ExceptionOrErrorResult: UnsupportedOperationException: translation of (const (_ BitVec 32) (Array (_ BitVec 32) (_ BitVec 32))) not yet implemented, please contact Matthias de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: UnsupportedOperationException: translation of (const (_ BitVec 32) (Array (_ BitVec 32) (_ BitVec 32))) not yet implemented, please contact Matthias: de.uni_freiburg.informatik.ultimate.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:209) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...