./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/bitvector/num_conversion_1_true-unreach-call_true-no-overflow.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 635dfa2a Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_b7e6c85c-ab0d-41bc-99a3-ef6a53e86aab/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_b7e6c85c-ab0d-41bc-99a3-ef6a53e86aab/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_b7e6c85c-ab0d-41bc-99a3-ef6a53e86aab/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_b7e6c85c-ab0d-41bc-99a3-ef6a53e86aab/bin-2019/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/bitvector/num_conversion_1_true-unreach-call_true-no-overflow.i -s /tmp/vcloud-vcloud-master/worker/working_dir_b7e6c85c-ab0d-41bc-99a3-ef6a53e86aab/bin-2019/uautomizer/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_b7e6c85c-ab0d-41bc-99a3-ef6a53e86aab/bin-2019/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash d2a071cc6090a217f48ed180b566a651717a8e39 ........................................................................................................................................................................................................................................................... Execution finished normally Using bit-precise analysis No suitable file found in config dir /tmp/vcloud-vcloud-master/worker/working_dir_b7e6c85c-ab0d-41bc-99a3-ef6a53e86aab/bin-2019/uautomizer/config using search string *Overflow*32bit*_Bitvector*.epf No suitable settings file found using Overflow*32bit*_Bitvector ERROR: UNSUPPORTED PROPERTY Writing output log to file Ultimate.log Result: UNKNOWN: Overapproximated counterexample --- Real Ultimate output --- This is Ultimate 0.1.23-635dfa2 [2018-12-08 17:29:34,800 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-08 17:29:34,801 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-08 17:29:34,809 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-08 17:29:34,809 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-08 17:29:34,810 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-08 17:29:34,811 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-08 17:29:34,811 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-08 17:29:34,813 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-08 17:29:34,813 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-08 17:29:34,814 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-08 17:29:34,814 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-08 17:29:34,815 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-08 17:29:34,816 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-08 17:29:34,816 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-08 17:29:34,817 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-08 17:29:34,818 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-08 17:29:34,819 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-08 17:29:34,820 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-08 17:29:34,821 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-08 17:29:34,822 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-08 17:29:34,823 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-08 17:29:34,823 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-08 17:29:34,824 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-08 17:29:34,824 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-08 17:29:34,824 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-08 17:29:34,825 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-08 17:29:34,825 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-08 17:29:34,825 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-08 17:29:34,826 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-08 17:29:34,826 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-08 17:29:34,826 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-08 17:29:34,826 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-08 17:29:34,826 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-08 17:29:34,827 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-08 17:29:34,827 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-08 17:29:34,827 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_b7e6c85c-ab0d-41bc-99a3-ef6a53e86aab/bin-2019/uautomizer/config/svcomp-Overflow-32bit-Automizer_Default.epf [2018-12-08 17:29:34,834 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-08 17:29:34,834 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-08 17:29:34,834 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-08 17:29:34,835 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-08 17:29:34,835 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-12-08 17:29:34,835 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-12-08 17:29:34,835 INFO L133 SettingsManager]: * Use SBE=true [2018-12-08 17:29:34,835 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-08 17:29:34,835 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-08 17:29:34,835 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-12-08 17:29:34,836 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-08 17:29:34,836 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-08 17:29:34,836 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-08 17:29:34,836 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-08 17:29:34,836 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-08 17:29:34,836 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-08 17:29:34,836 INFO L133 SettingsManager]: * Check absence of signed integer overflows=true [2018-12-08 17:29:34,837 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-08 17:29:34,837 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-08 17:29:34,837 INFO L133 SettingsManager]: * Use constant arrays=true [2018-12-08 17:29:34,837 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-08 17:29:34,837 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-08 17:29:34,837 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-08 17:29:34,837 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-08 17:29:34,838 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-08 17:29:34,838 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-08 17:29:34,838 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-08 17:29:34,838 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-08 17:29:34,838 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-08 17:29:34,838 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-12-08 17:29:34,838 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-08 17:29:34,839 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-12-08 17:29:34,839 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 -> /tmp/vcloud-vcloud-master/worker/working_dir_b7e6c85c-ab0d-41bc-99a3-ef6a53e86aab/bin-2019/uautomizer 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 ! overflow) ) 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 -> d2a071cc6090a217f48ed180b566a651717a8e39 [2018-12-08 17:29:34,861 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-08 17:29:34,869 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-08 17:29:34,871 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-08 17:29:34,872 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-08 17:29:34,872 INFO L276 PluginConnector]: CDTParser initialized [2018-12-08 17:29:34,872 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_b7e6c85c-ab0d-41bc-99a3-ef6a53e86aab/bin-2019/uautomizer/../../sv-benchmarks/c/bitvector/num_conversion_1_true-unreach-call_true-no-overflow.i [2018-12-08 17:29:34,909 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_b7e6c85c-ab0d-41bc-99a3-ef6a53e86aab/bin-2019/uautomizer/data/2ec24213e/d37be5d33571453bb1e716b859372d28/FLAGe3887db59 [2018-12-08 17:29:35,344 INFO L307 CDTParser]: Found 1 translation units. [2018-12-08 17:29:35,344 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_b7e6c85c-ab0d-41bc-99a3-ef6a53e86aab/sv-benchmarks/c/bitvector/num_conversion_1_true-unreach-call_true-no-overflow.i [2018-12-08 17:29:35,347 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_b7e6c85c-ab0d-41bc-99a3-ef6a53e86aab/bin-2019/uautomizer/data/2ec24213e/d37be5d33571453bb1e716b859372d28/FLAGe3887db59 [2018-12-08 17:29:35,356 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_b7e6c85c-ab0d-41bc-99a3-ef6a53e86aab/bin-2019/uautomizer/data/2ec24213e/d37be5d33571453bb1e716b859372d28 [2018-12-08 17:29:35,358 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-08 17:29:35,358 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-08 17:29:35,359 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-08 17:29:35,359 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-08 17:29:35,361 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-08 17:29:35,362 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.12 05:29:35" (1/1) ... [2018-12-08 17:29:35,363 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@409ee820 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 05:29:35, skipping insertion in model container [2018-12-08 17:29:35,363 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.12 05:29:35" (1/1) ... [2018-12-08 17:29:35,368 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-08 17:29:35,377 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-08 17:29:35,460 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-08 17:29:35,463 INFO L191 MainTranslator]: Completed pre-run [2018-12-08 17:29:35,472 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-08 17:29:35,480 INFO L195 MainTranslator]: Completed translation [2018-12-08 17:29:35,480 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 05:29:35 WrapperNode [2018-12-08 17:29:35,480 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-08 17:29:35,481 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-08 17:29:35,481 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-08 17:29:35,481 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-08 17:29:35,485 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 05:29:35" (1/1) ... [2018-12-08 17:29:35,488 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 05:29:35" (1/1) ... [2018-12-08 17:29:35,492 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-08 17:29:35,492 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-08 17:29:35,492 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-08 17:29:35,492 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-08 17:29:35,497 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 05:29:35" (1/1) ... [2018-12-08 17:29:35,497 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 05:29:35" (1/1) ... [2018-12-08 17:29:35,497 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 05:29:35" (1/1) ... [2018-12-08 17:29:35,498 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 05:29:35" (1/1) ... [2018-12-08 17:29:35,500 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 05:29:35" (1/1) ... [2018-12-08 17:29:35,530 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 05:29:35" (1/1) ... [2018-12-08 17:29:35,531 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 05:29:35" (1/1) ... [2018-12-08 17:29:35,532 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-08 17:29:35,533 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-08 17:29:35,533 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-08 17:29:35,533 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-08 17:29:35,534 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 05:29:35" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_b7e6c85c-ab0d-41bc-99a3-ef6a53e86aab/bin-2019/uautomizer/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 [2018-12-08 17:29:35,564 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-12-08 17:29:35,564 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-12-08 17:29:35,564 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-08 17:29:35,564 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-08 17:29:35,564 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-12-08 17:29:35,564 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-12-08 17:29:35,564 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2018-12-08 17:29:35,564 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2018-12-08 17:29:35,653 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-08 17:29:35,653 INFO L280 CfgBuilder]: Removed 1 assue(true) statements. [2018-12-08 17:29:35,653 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.12 05:29:35 BoogieIcfgContainer [2018-12-08 17:29:35,653 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-08 17:29:35,654 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-08 17:29:35,654 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-08 17:29:35,656 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-08 17:29:35,656 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.12 05:29:35" (1/3) ... [2018-12-08 17:29:35,656 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f5ac7a7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.12 05:29:35, skipping insertion in model container [2018-12-08 17:29:35,656 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 05:29:35" (2/3) ... [2018-12-08 17:29:35,656 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f5ac7a7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.12 05:29:35, skipping insertion in model container [2018-12-08 17:29:35,656 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.12 05:29:35" (3/3) ... [2018-12-08 17:29:35,657 INFO L112 eAbstractionObserver]: Analyzing ICFG num_conversion_1_true-unreach-call_true-no-overflow.i [2018-12-08 17:29:35,663 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-08 17:29:35,668 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 6 error locations. [2018-12-08 17:29:35,679 INFO L257 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2018-12-08 17:29:35,698 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-12-08 17:29:35,699 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-08 17:29:35,699 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-08 17:29:35,699 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-08 17:29:35,699 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-08 17:29:35,699 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-08 17:29:35,699 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-08 17:29:35,699 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-08 17:29:35,699 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-08 17:29:35,713 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states. [2018-12-08 17:29:35,717 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2018-12-08 17:29:35,717 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 17:29:35,718 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2018-12-08 17:29:35,719 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-12-08 17:29:35,722 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 17:29:35,722 INFO L82 PathProgramCache]: Analyzing trace with hash 1440060403, now seen corresponding path program 1 times [2018-12-08 17:29:35,723 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-08 17:29:35,723 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-08 17:29:35,755 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 17:29:35,755 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 17:29:35,755 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 17:29:35,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-08 17:29:35,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-08 17:29:35,786 INFO L469 BasicCegarLoop]: Counterexample might be feasible [2018-12-08 17:29:35,798 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.12 05:29:35 BoogieIcfgContainer [2018-12-08 17:29:35,798 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-08 17:29:35,799 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-08 17:29:35,799 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-08 17:29:35,799 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-08 17:29:35,799 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.12 05:29:35" (3/4) ... [2018-12-08 17:29:35,801 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-12-08 17:29:35,801 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-08 17:29:35,802 INFO L168 Benchmark]: Toolchain (without parser) took 444.00 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 125.8 MB). Free memory was 957.1 MB in the beginning and 1.1 GB in the end (delta: -127.8 MB). There was no memory consumed. Max. memory is 11.5 GB. [2018-12-08 17:29:35,803 INFO L168 Benchmark]: CDTParser took 0.11 ms. Allocated memory is still 1.0 GB. Free memory is still 976.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-08 17:29:35,803 INFO L168 Benchmark]: CACSL2BoogieTranslator took 121.37 ms. Allocated memory is still 1.0 GB. Free memory was 957.1 MB in the beginning and 946.3 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-12-08 17:29:35,804 INFO L168 Benchmark]: Boogie Procedure Inliner took 11.27 ms. Allocated memory is still 1.0 GB. Free memory is still 946.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-08 17:29:35,804 INFO L168 Benchmark]: Boogie Preprocessor took 40.46 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 125.8 MB). Free memory was 946.3 MB in the beginning and 1.1 GB in the end (delta: -174.4 MB). Peak memory consumption was 12.9 MB. Max. memory is 11.5 GB. [2018-12-08 17:29:35,805 INFO L168 Benchmark]: RCFGBuilder took 120.73 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: 15.0 MB). Peak memory consumption was 15.0 MB. Max. memory is 11.5 GB. [2018-12-08 17:29:35,805 INFO L168 Benchmark]: TraceAbstraction took 144.73 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 20.8 MB). Peak memory consumption was 20.8 MB. Max. memory is 11.5 GB. [2018-12-08 17:29:35,805 INFO L168 Benchmark]: Witness Printer took 2.83 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-08 17:29:35,807 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11 ms. Allocated memory is still 1.0 GB. Free memory is still 976.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 121.37 ms. Allocated memory is still 1.0 GB. Free memory was 957.1 MB in the beginning and 946.3 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 11.27 ms. Allocated memory is still 1.0 GB. Free memory is still 946.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 40.46 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 125.8 MB). Free memory was 946.3 MB in the beginning and 1.1 GB in the end (delta: -174.4 MB). Peak memory consumption was 12.9 MB. Max. memory is 11.5 GB. * RCFGBuilder took 120.73 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: 15.0 MB). Peak memory consumption was 15.0 MB. Max. memory is 11.5 GB. * TraceAbstraction took 144.73 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 20.8 MB). Peak memory consumption was 20.8 MB. Max. memory is 11.5 GB. * Witness Printer took 2.83 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 22]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of shiftLeft at line 22. Possible FailurePath: [L14] unsigned char x; [L15] unsigned char y; [L16] unsigned char c; [L18] x = 37 [L19] y = 0 [L20] c = 0 VAL [c=0, x=37, y=0] [L21] COND TRUE c < (unsigned char)8 VAL [c=0, x=37, y=0] [L22] ((unsigned char)1) << c VAL [c=0, x=37, y=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 30 locations, 6 error locations. UNSAFE Result, 0.1s OverallTime, 1 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=30occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 7 NumberOfCodeBlocks, 7 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request...