./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/bitvector/modulus-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version f470102c Calling Ultimate with: /usr/bin/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 ../sv-benchmarks/c/bitvector/modulus-1.i -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 6253a401c5a2a2b8eab18bffe82737a5c816300f ........................................................................................................................................................................................................................... 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-f470102 [2019-11-28 20:26:56,462 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-28 20:26:56,465 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-28 20:26:56,484 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-28 20:26:56,484 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-28 20:26:56,486 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-28 20:26:56,488 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-28 20:26:56,497 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-28 20:26:56,502 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-28 20:26:56,506 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-28 20:26:56,508 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-28 20:26:56,510 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-28 20:26:56,510 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-28 20:26:56,514 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-28 20:26:56,515 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-28 20:26:56,517 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-28 20:26:56,518 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-28 20:26:56,519 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-28 20:26:56,521 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-28 20:26:56,525 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-28 20:26:56,530 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-28 20:26:56,535 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-28 20:26:56,537 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-28 20:26:56,539 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-28 20:26:56,543 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-28 20:26:56,543 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-28 20:26:56,543 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-28 20:26:56,545 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-28 20:26:56,546 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-28 20:26:56,547 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-28 20:26:56,547 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-28 20:26:56,548 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-28 20:26:56,549 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-28 20:26:56,550 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-28 20:26:56,551 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-28 20:26:56,552 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-28 20:26:56,553 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-28 20:26:56,553 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-28 20:26:56,553 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-28 20:26:56,554 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-28 20:26:56,556 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-28 20:26:56,557 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2019-11-28 20:26:56,576 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-28 20:26:56,576 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-28 20:26:56,577 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-28 20:26:56,578 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-28 20:26:56,578 INFO L138 SettingsManager]: * Use SBE=true [2019-11-28 20:26:56,579 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-28 20:26:56,579 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-28 20:26:56,579 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-28 20:26:56,579 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-28 20:26:56,580 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-28 20:26:56,580 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-28 20:26:56,580 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-28 20:26:56,580 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-28 20:26:56,581 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-28 20:26:56,581 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2019-11-28 20:26:56,581 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-28 20:26:56,581 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-28 20:26:56,582 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-28 20:26:56,582 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-28 20:26:56,582 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-28 20:26:56,583 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-28 20:26:56,583 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-28 20:26:56,583 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-28 20:26:56,584 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-28 20:26:56,584 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-28 20:26:56,584 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-28 20:26:56,584 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-28 20:26:56,585 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-28 20:26:56,585 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-28 20:26:56,585 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-28 20:26:56,586 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-11-28 20:26:56,586 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 -> 6253a401c5a2a2b8eab18bffe82737a5c816300f [2019-11-28 20:26:56,919 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-28 20:26:56,940 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-28 20:26:56,945 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-28 20:26:56,947 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-28 20:26:56,948 INFO L275 PluginConnector]: CDTParser initialized [2019-11-28 20:26:56,949 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/bitvector/modulus-1.i [2019-11-28 20:26:57,027 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4538d7cb1/1d636d92c45345169c2c8a7dbd807a52/FLAG5d514dfa3 [2019-11-28 20:26:57,491 INFO L306 CDTParser]: Found 1 translation units. [2019-11-28 20:26:57,492 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/bitvector/modulus-1.i [2019-11-28 20:26:57,498 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4538d7cb1/1d636d92c45345169c2c8a7dbd807a52/FLAG5d514dfa3 [2019-11-28 20:26:57,889 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4538d7cb1/1d636d92c45345169c2c8a7dbd807a52 [2019-11-28 20:26:57,893 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-28 20:26:57,895 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-28 20:26:57,896 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-28 20:26:57,896 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-28 20:26:57,900 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-28 20:26:57,901 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 08:26:57" (1/1) ... [2019-11-28 20:26:57,904 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@38a57ec0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:26:57, skipping insertion in model container [2019-11-28 20:26:57,905 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 08:26:57" (1/1) ... [2019-11-28 20:26:57,912 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-28 20:26:57,932 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-28 20:26:58,115 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 20:26:58,120 INFO L203 MainTranslator]: Completed pre-run [2019-11-28 20:26:58,140 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 20:26:58,157 INFO L208 MainTranslator]: Completed translation [2019-11-28 20:26:58,158 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:26:58 WrapperNode [2019-11-28 20:26:58,158 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-28 20:26:58,159 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-28 20:26:58,159 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-28 20:26:58,159 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-28 20:26:58,226 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:26:58" (1/1) ... [2019-11-28 20:26:58,234 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:26:58" (1/1) ... [2019-11-28 20:26:58,256 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-28 20:26:58,257 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-28 20:26:58,257 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-28 20:26:58,257 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-28 20:26:58,265 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:26:58" (1/1) ... [2019-11-28 20:26:58,265 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:26:58" (1/1) ... [2019-11-28 20:26:58,266 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:26:58" (1/1) ... [2019-11-28 20:26:58,267 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:26:58" (1/1) ... [2019-11-28 20:26:58,271 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:26:58" (1/1) ... [2019-11-28 20:26:58,276 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:26:58" (1/1) ... [2019-11-28 20:26:58,278 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:26:58" (1/1) ... [2019-11-28 20:26:58,279 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-28 20:26:58,280 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-28 20:26:58,280 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-28 20:26:58,280 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-28 20:26:58,281 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:26:58" (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 [2019-11-28 20:26:58,343 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-28 20:26:58,343 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-28 20:26:58,555 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-28 20:26:58,556 INFO L287 CfgBuilder]: Removed 8 assume(true) statements. [2019-11-28 20:26:58,557 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 08:26:58 BoogieIcfgContainer [2019-11-28 20:26:58,557 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-28 20:26:58,558 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-28 20:26:58,559 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-28 20:26:58,562 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-28 20:26:58,562 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 08:26:57" (1/3) ... [2019-11-28 20:26:58,574 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3213f8e7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 08:26:58, skipping insertion in model container [2019-11-28 20:26:58,574 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:26:58" (2/3) ... [2019-11-28 20:26:58,578 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3213f8e7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 08:26:58, skipping insertion in model container [2019-11-28 20:26:58,578 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 08:26:58" (3/3) ... [2019-11-28 20:26:58,584 INFO L109 eAbstractionObserver]: Analyzing ICFG modulus-1.i [2019-11-28 20:26:58,596 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-28 20:26:58,605 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 4 error locations. [2019-11-28 20:26:58,619 INFO L249 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2019-11-28 20:26:58,648 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-28 20:26:58,648 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-28 20:26:58,648 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-28 20:26:58,648 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-28 20:26:58,649 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-28 20:26:58,649 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-28 20:26:58,649 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-28 20:26:58,649 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-28 20:26:58,666 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states. [2019-11-28 20:26:58,671 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2019-11-28 20:26:58,672 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 20:26:58,673 INFO L410 BasicCegarLoop]: trace histogram [1, 1] [2019-11-28 20:26:58,673 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-28 20:26:58,679 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 20:26:58,680 INFO L82 PathProgramCache]: Analyzing trace with hash 994, now seen corresponding path program 1 times [2019-11-28 20:26:58,689 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 20:26:58,690 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [784436633] [2019-11-28 20:26:58,690 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 20:26:58,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 20:26:58,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 20:26:58,815 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 20:26:58,816 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-11-28 20:26:58,838 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 08:26:58 BoogieIcfgContainer [2019-11-28 20:26:58,839 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-28 20:26:58,839 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-28 20:26:58,840 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-28 20:26:58,842 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-28 20:26:58,843 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 08:26:58" (3/4) ... [2019-11-28 20:26:58,849 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-11-28 20:26:58,849 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-28 20:26:58,854 INFO L168 Benchmark]: Toolchain (without parser) took 956.87 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 133.7 MB). Free memory was 955.0 MB in the beginning and 1.1 GB in the end (delta: -138.1 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-11-28 20:26:58,856 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 1.0 GB. Free memory is still 981.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-28 20:26:58,858 INFO L168 Benchmark]: CACSL2BoogieTranslator took 262.51 ms. Allocated memory is still 1.0 GB. Free memory was 955.0 MB in the beginning and 944.3 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2019-11-28 20:26:58,861 INFO L168 Benchmark]: Boogie Procedure Inliner took 97.80 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 133.7 MB). Free memory was 944.3 MB in the beginning and 1.1 GB in the end (delta: -186.2 MB). Peak memory consumption was 9.5 MB. Max. memory is 11.5 GB. [2019-11-28 20:26:58,863 INFO L168 Benchmark]: Boogie Preprocessor took 22.77 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: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. [2019-11-28 20:26:58,865 INFO L168 Benchmark]: RCFGBuilder took 277.38 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: 24.2 MB). Peak memory consumption was 24.2 MB. Max. memory is 11.5 GB. [2019-11-28 20:26:58,866 INFO L168 Benchmark]: TraceAbstraction took 280.65 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. [2019-11-28 20:26:58,867 INFO L168 Benchmark]: Witness Printer took 10.12 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. [2019-11-28 20:26:58,886 INFO L335 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 981.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 262.51 ms. Allocated memory is still 1.0 GB. Free memory was 955.0 MB in the beginning and 944.3 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 97.80 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 133.7 MB). Free memory was 944.3 MB in the beginning and 1.1 GB in the end (delta: -186.2 MB). Peak memory consumption was 9.5 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 22.77 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: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. * RCFGBuilder took 277.38 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: 24.2 MB). Peak memory consumption was 24.2 MB. Max. memory is 11.5 GB. * TraceAbstraction took 280.65 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. * Witness Printer took 10.12 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: 29]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of shiftLeft at line 29. Possible FailurePath: [L24] unsigned int n = __VERIFIER_nondet_uint(); [L25] unsigned int s = __VERIFIER_nondet_uint(); [L26] unsigned int d; [L27] unsigned int m; [L29] 1 << s - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 21 locations, 4 error locations. Result: UNSAFE, OverallTime: 0.1s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=21occurred 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, 2 NumberOfCodeBlocks, 2 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, 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...