./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/bitvector/num_conversion_1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 9a8b2e8d Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/bitvector/num_conversion_1.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-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 ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 22f8891fc10bb8c305de18eb9540699e7b8a01ce ................................................................................................................................................................................................................................... Execution finished normally Using bit-precise analysis No suitable file found in config dir /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 0.1.25-9a8b2e8 [2020-10-20 06:29:38,697 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-20 06:29:38,700 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-20 06:29:38,723 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-20 06:29:38,723 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-20 06:29:38,725 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-20 06:29:38,726 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-20 06:29:38,728 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-20 06:29:38,730 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-20 06:29:38,731 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-20 06:29:38,732 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-20 06:29:38,733 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-20 06:29:38,733 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-20 06:29:38,734 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-20 06:29:38,735 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-20 06:29:38,737 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-20 06:29:38,737 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-20 06:29:38,747 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-20 06:29:38,749 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-20 06:29:38,751 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-20 06:29:38,755 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-20 06:29:38,756 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-20 06:29:38,760 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-20 06:29:38,761 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-20 06:29:38,763 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-20 06:29:38,763 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-20 06:29:38,763 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-20 06:29:38,764 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-20 06:29:38,764 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-20 06:29:38,765 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-20 06:29:38,766 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-20 06:29:38,766 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-20 06:29:38,767 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-20 06:29:38,768 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-20 06:29:38,769 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-20 06:29:38,769 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-20 06:29:38,769 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-20 06:29:38,770 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-20 06:29:38,770 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-20 06:29:38,771 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-20 06:29:38,772 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-20 06:29:38,772 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2020-10-20 06:29:38,795 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-20 06:29:38,795 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-20 06:29:38,796 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-20 06:29:38,796 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-20 06:29:38,797 INFO L138 SettingsManager]: * Use SBE=true [2020-10-20 06:29:38,797 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-20 06:29:38,797 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-20 06:29:38,797 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-10-20 06:29:38,798 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-20 06:29:38,798 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-20 06:29:38,798 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-20 06:29:38,798 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-20 06:29:38,799 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-20 06:29:38,799 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-20 06:29:38,799 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2020-10-20 06:29:38,799 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-20 06:29:38,800 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-20 06:29:38,800 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-20 06:29:38,800 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-20 06:29:38,800 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-20 06:29:38,801 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-20 06:29:38,801 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-20 06:29:38,801 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-20 06:29:38,801 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-20 06:29:38,802 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-20 06:29:38,802 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-20 06:29:38,802 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-20 06:29:38,802 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-20 06:29:38,803 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-20 06:29:38,803 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-20 06:29:38,803 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-20 06:29:38,803 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! 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 -> 22f8891fc10bb8c305de18eb9540699e7b8a01ce [2020-10-20 06:29:38,994 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-20 06:29:39,006 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-20 06:29:39,009 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-20 06:29:39,011 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-20 06:29:39,011 INFO L275 PluginConnector]: CDTParser initialized [2020-10-20 06:29:39,012 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/bitvector/num_conversion_1.c [2020-10-20 06:29:39,087 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4c43c307c/ac24777a493a41709f95d01025fde6a7/FLAG117bdf2b9 [2020-10-20 06:29:39,529 INFO L306 CDTParser]: Found 1 translation units. [2020-10-20 06:29:39,530 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/bitvector/num_conversion_1.c [2020-10-20 06:29:39,537 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4c43c307c/ac24777a493a41709f95d01025fde6a7/FLAG117bdf2b9 [2020-10-20 06:29:39,891 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4c43c307c/ac24777a493a41709f95d01025fde6a7 [2020-10-20 06:29:39,895 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-20 06:29:39,902 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-20 06:29:39,903 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-20 06:29:39,904 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-20 06:29:39,907 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-20 06:29:39,908 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 06:29:39" (1/1) ... [2020-10-20 06:29:39,911 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@31066036 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:29:39, skipping insertion in model container [2020-10-20 06:29:39,912 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 06:29:39" (1/1) ... [2020-10-20 06:29:39,920 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-20 06:29:39,940 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-20 06:29:40,192 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 06:29:40,204 INFO L203 MainTranslator]: Completed pre-run [2020-10-20 06:29:40,225 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 06:29:40,243 INFO L208 MainTranslator]: Completed translation [2020-10-20 06:29:40,243 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:29:40 WrapperNode [2020-10-20 06:29:40,243 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-20 06:29:40,244 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-20 06:29:40,244 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-20 06:29:40,244 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-20 06:29:40,253 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:29:40" (1/1) ... [2020-10-20 06:29:40,262 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:29:40" (1/1) ... [2020-10-20 06:29:40,282 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-20 06:29:40,283 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-20 06:29:40,283 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-20 06:29:40,284 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-20 06:29:40,294 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:29:40" (1/1) ... [2020-10-20 06:29:40,294 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:29:40" (1/1) ... [2020-10-20 06:29:40,296 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:29:40" (1/1) ... [2020-10-20 06:29:40,296 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:29:40" (1/1) ... [2020-10-20 06:29:40,301 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:29:40" (1/1) ... [2020-10-20 06:29:40,306 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:29:40" (1/1) ... [2020-10-20 06:29:40,307 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:29:40" (1/1) ... [2020-10-20 06:29:40,309 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-20 06:29:40,310 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-20 06:29:40,310 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-20 06:29:40,311 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-20 06:29:40,312 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:29:40" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-20 06:29:40,385 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-20 06:29:40,385 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-20 06:29:40,386 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-20 06:29:40,386 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-20 06:29:40,601 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-20 06:29:40,602 INFO L298 CfgBuilder]: Removed 9 assume(true) statements. [2020-10-20 06:29:40,603 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 06:29:40 BoogieIcfgContainer [2020-10-20 06:29:40,603 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-20 06:29:40,605 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-20 06:29:40,605 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-20 06:29:40,608 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-20 06:29:40,608 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.10 06:29:39" (1/3) ... [2020-10-20 06:29:40,609 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d55cc93 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.10 06:29:40, skipping insertion in model container [2020-10-20 06:29:40,609 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:29:40" (2/3) ... [2020-10-20 06:29:40,610 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d55cc93 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.10 06:29:40, skipping insertion in model container [2020-10-20 06:29:40,610 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 06:29:40" (3/3) ... [2020-10-20 06:29:40,612 INFO L111 eAbstractionObserver]: Analyzing ICFG num_conversion_1.c [2020-10-20 06:29:40,623 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-20 06:29:40,630 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 6 error locations. [2020-10-20 06:29:40,646 INFO L253 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2020-10-20 06:29:40,669 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-20 06:29:40,669 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-20 06:29:40,669 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-20 06:29:40,669 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-20 06:29:40,670 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-20 06:29:40,670 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-20 06:29:40,670 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-20 06:29:40,670 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-20 06:29:40,686 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states. [2020-10-20 06:29:40,691 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-10-20 06:29:40,691 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 06:29:40,691 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2020-10-20 06:29:40,692 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-10-20 06:29:40,696 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:29:40,696 INFO L82 PathProgramCache]: Analyzing trace with hash 925796, now seen corresponding path program 1 times [2020-10-20 06:29:40,706 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 06:29:40,706 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [566657076] [2020-10-20 06:29:40,707 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 06:29:40,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 06:29:40,815 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 06:29:40,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 06:29:40,834 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 06:29:40,857 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-20 06:29:40,858 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-20 06:29:40,858 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-20 06:29:40,898 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.10 06:29:40 BoogieIcfgContainer [2020-10-20 06:29:40,898 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-20 06:29:40,899 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-20 06:29:40,900 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-20 06:29:40,900 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-20 06:29:40,901 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 06:29:40" (3/4) ... [2020-10-20 06:29:40,906 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-10-20 06:29:40,906 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-20 06:29:40,912 INFO L168 Benchmark]: Toolchain (without parser) took 1011.75 ms. Allocated memory was 34.6 MB in the beginning and 45.6 MB in the end (delta: 11.0 MB). Free memory was 15.7 MB in the beginning and 22.1 MB in the end (delta: -6.4 MB). Peak memory consumption was 4.6 MB. Max. memory is 14.3 GB. [2020-10-20 06:29:40,915 INFO L168 Benchmark]: CDTParser took 0.29 ms. Allocated memory is still 33.6 MB. Free memory was 10.0 MB in the beginning and 9.9 MB in the end (delta: 87.4 kB). Peak memory consumption was 87.4 kB. Max. memory is 14.3 GB. [2020-10-20 06:29:40,918 INFO L168 Benchmark]: CACSL2BoogieTranslator took 340.37 ms. Allocated memory was 34.6 MB in the beginning and 43.5 MB in the end (delta: 8.9 MB). Free memory was 14.9 MB in the beginning and 25.2 MB in the end (delta: -10.3 MB). Peak memory consumption was 10.8 MB. Max. memory is 14.3 GB. [2020-10-20 06:29:40,919 INFO L168 Benchmark]: Boogie Procedure Inliner took 38.89 ms. Allocated memory is still 43.5 MB. Free memory was 25.2 MB in the beginning and 23.4 MB in the end (delta: 1.8 MB). Peak memory consumption was 1.8 MB. Max. memory is 14.3 GB. [2020-10-20 06:29:40,920 INFO L168 Benchmark]: Boogie Preprocessor took 26.60 ms. Allocated memory is still 43.5 MB. Free memory was 23.4 MB in the beginning and 22.3 MB in the end (delta: 1.1 MB). Peak memory consumption was 1.1 MB. Max. memory is 14.3 GB. [2020-10-20 06:29:40,922 INFO L168 Benchmark]: RCFGBuilder took 293.48 ms. Allocated memory was 43.5 MB in the beginning and 45.6 MB in the end (delta: 2.1 MB). Free memory was 22.1 MB in the beginning and 21.4 MB in the end (delta: 728.4 kB). Peak memory consumption was 11.4 MB. Max. memory is 14.3 GB. [2020-10-20 06:29:40,924 INFO L168 Benchmark]: TraceAbstraction took 293.55 ms. Allocated memory is still 45.6 MB. Free memory was 20.9 MB in the beginning and 22.7 MB in the end (delta: -1.8 MB). There was no memory consumed. Max. memory is 14.3 GB. [2020-10-20 06:29:40,925 INFO L168 Benchmark]: Witness Printer took 7.75 ms. Allocated memory is still 45.6 MB. Free memory was 22.7 MB in the beginning and 22.1 MB in the end (delta: 546.6 kB). Peak memory consumption was 546.6 kB. Max. memory is 14.3 GB. [2020-10-20 06:29:40,943 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29 ms. Allocated memory is still 33.6 MB. Free memory was 10.0 MB in the beginning and 9.9 MB in the end (delta: 87.4 kB). Peak memory consumption was 87.4 kB. Max. memory is 14.3 GB. * CACSL2BoogieTranslator took 340.37 ms. Allocated memory was 34.6 MB in the beginning and 43.5 MB in the end (delta: 8.9 MB). Free memory was 14.9 MB in the beginning and 25.2 MB in the end (delta: -10.3 MB). Peak memory consumption was 10.8 MB. Max. memory is 14.3 GB. * Boogie Procedure Inliner took 38.89 ms. Allocated memory is still 43.5 MB. Free memory was 25.2 MB in the beginning and 23.4 MB in the end (delta: 1.8 MB). Peak memory consumption was 1.8 MB. Max. memory is 14.3 GB. * Boogie Preprocessor took 26.60 ms. Allocated memory is still 43.5 MB. Free memory was 23.4 MB in the beginning and 22.3 MB in the end (delta: 1.1 MB). Peak memory consumption was 1.1 MB. Max. memory is 14.3 GB. * RCFGBuilder took 293.48 ms. Allocated memory was 43.5 MB in the beginning and 45.6 MB in the end (delta: 2.1 MB). Free memory was 22.1 MB in the beginning and 21.4 MB in the end (delta: 728.4 kB). Peak memory consumption was 11.4 MB. Max. memory is 14.3 GB. * TraceAbstraction took 293.55 ms. Allocated memory is still 45.6 MB. Free memory was 20.9 MB in the beginning and 22.7 MB in the end (delta: -1.8 MB). There was no memory consumed. Max. memory is 14.3 GB. * Witness Printer took 7.75 ms. Allocated memory is still 45.6 MB. Free memory was 22.7 MB in the beginning and 22.1 MB in the end (delta: 546.6 kB). Peak memory consumption was 546.6 kB. Max. memory is 14.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 24]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of shiftLeft at line 24. Possible FailurePath: [L16] unsigned char x; [L17] unsigned char y; [L18] unsigned char c; [L20] x = 37 [L21] y = 0 [L22] c = 0 [L23] COND TRUE c < (unsigned char)8 [L24] ((unsigned char)1) << c - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 24 locations, 6 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.1s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=24occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 4 NumberOfCodeBlocks, 4 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request...