./Ultimate.py --spec ../../sv-benchmarks/c/NoOverflows.prp --file ../../sv-benchmarks/c/bitvector/modulus_true-unreach-call_true-no-overflow.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 5842f4b8 Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_ca747a89-fa32-4b1c-ada5-8b2fa4328af7/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_ca747a89-fa32-4b1c-ada5-8b2fa4328af7/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_ca747a89-fa32-4b1c-ada5-8b2fa4328af7/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_ca747a89-fa32-4b1c-ada5-8b2fa4328af7/bin-2019/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/bitvector/modulus_true-unreach-call_true-no-overflow.i -s /tmp/vcloud-vcloud-master/worker/working_dir_ca747a89-fa32-4b1c-ada5-8b2fa4328af7/bin-2019/uautomizer/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_ca747a89-fa32-4b1c-ada5-8b2fa4328af7/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 c028dc478ad08c52f1db2e76a15a3094442b18a8 ............................................................................................................................................................................................................................................... Execution finished normally Using bit-precise analysis No suitable file found in config dir /tmp/vcloud-vcloud-master/worker/working_dir_ca747a89-fa32-4b1c-ada5-8b2fa4328af7/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 0.1.23-5842f4b [2018-11-18 09:17:29,550 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-18 09:17:29,551 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-18 09:17:29,557 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-18 09:17:29,558 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-18 09:17:29,558 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-18 09:17:29,559 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-18 09:17:29,560 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-18 09:17:29,561 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-18 09:17:29,562 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-18 09:17:29,563 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-18 09:17:29,563 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-18 09:17:29,563 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-18 09:17:29,564 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-18 09:17:29,565 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-18 09:17:29,565 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-18 09:17:29,566 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-18 09:17:29,567 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-18 09:17:29,568 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-18 09:17:29,569 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-18 09:17:29,570 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-18 09:17:29,571 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-18 09:17:29,573 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-18 09:17:29,573 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-18 09:17:29,573 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-18 09:17:29,574 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-18 09:17:29,574 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-18 09:17:29,575 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-18 09:17:29,576 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-18 09:17:29,576 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-18 09:17:29,577 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-18 09:17:29,577 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-18 09:17:29,577 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-18 09:17:29,577 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-18 09:17:29,578 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-18 09:17:29,578 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-18 09:17:29,579 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_ca747a89-fa32-4b1c-ada5-8b2fa4328af7/bin-2019/uautomizer/config/svcomp-Overflow-32bit-Automizer_Default.epf [2018-11-18 09:17:29,587 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-18 09:17:29,587 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-18 09:17:29,587 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-18 09:17:29,587 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-11-18 09:17:29,588 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-18 09:17:29,588 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-18 09:17:29,588 INFO L133 SettingsManager]: * Use SBE=true [2018-11-18 09:17:29,588 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-18 09:17:29,588 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-18 09:17:29,588 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-11-18 09:17:29,588 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-18 09:17:29,589 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-18 09:17:29,589 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-18 09:17:29,589 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-18 09:17:29,589 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-18 09:17:29,589 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-18 09:17:29,589 INFO L133 SettingsManager]: * Check absence of signed integer overflows=true [2018-11-18 09:17:29,589 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-18 09:17:29,590 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-18 09:17:29,590 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-18 09:17:29,590 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-18 09:17:29,590 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-18 09:17:29,590 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-18 09:17:29,590 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-18 09:17:29,590 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-18 09:17:29,591 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-18 09:17:29,591 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-18 09:17:29,591 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-18 09:17:29,591 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-18 09:17:29,591 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-18 09:17:29,591 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-18 09:17:29,591 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-18 09:17:29,591 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_ca747a89-fa32-4b1c-ada5-8b2fa4328af7/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 -> c028dc478ad08c52f1db2e76a15a3094442b18a8 [2018-11-18 09:17:29,615 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-18 09:17:29,624 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-18 09:17:29,627 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-18 09:17:29,628 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-18 09:17:29,628 INFO L276 PluginConnector]: CDTParser initialized [2018-11-18 09:17:29,629 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_ca747a89-fa32-4b1c-ada5-8b2fa4328af7/bin-2019/uautomizer/../../sv-benchmarks/c/bitvector/modulus_true-unreach-call_true-no-overflow.i [2018-11-18 09:17:29,668 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_ca747a89-fa32-4b1c-ada5-8b2fa4328af7/bin-2019/uautomizer/data/972e100db/b83fe78bb29644ed84ef701c5235ceeb/FLAGba0df75d4 [2018-11-18 09:17:29,971 INFO L307 CDTParser]: Found 1 translation units. [2018-11-18 09:17:29,972 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_ca747a89-fa32-4b1c-ada5-8b2fa4328af7/sv-benchmarks/c/bitvector/modulus_true-unreach-call_true-no-overflow.i [2018-11-18 09:17:29,976 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_ca747a89-fa32-4b1c-ada5-8b2fa4328af7/bin-2019/uautomizer/data/972e100db/b83fe78bb29644ed84ef701c5235ceeb/FLAGba0df75d4 [2018-11-18 09:17:29,985 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_ca747a89-fa32-4b1c-ada5-8b2fa4328af7/bin-2019/uautomizer/data/972e100db/b83fe78bb29644ed84ef701c5235ceeb [2018-11-18 09:17:29,987 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-18 09:17:29,988 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-18 09:17:29,988 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-18 09:17:29,989 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-18 09:17:29,991 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-18 09:17:29,991 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 09:17:29" (1/1) ... [2018-11-18 09:17:29,993 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6578f1a3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:17:29, skipping insertion in model container [2018-11-18 09:17:29,993 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 09:17:29" (1/1) ... [2018-11-18 09:17:29,999 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-18 09:17:30,012 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-18 09:17:30,121 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 09:17:30,124 INFO L191 MainTranslator]: Completed pre-run [2018-11-18 09:17:30,136 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 09:17:30,145 INFO L195 MainTranslator]: Completed translation [2018-11-18 09:17:30,145 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:17:30 WrapperNode [2018-11-18 09:17:30,145 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-18 09:17:30,146 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-18 09:17:30,146 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-18 09:17:30,146 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-18 09:17:30,154 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:17:30" (1/1) ... [2018-11-18 09:17:30,154 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:17:30" (1/1) ... [2018-11-18 09:17:30,159 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:17:30" (1/1) ... [2018-11-18 09:17:30,159 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:17:30" (1/1) ... [2018-11-18 09:17:30,162 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:17:30" (1/1) ... [2018-11-18 09:17:30,165 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:17:30" (1/1) ... [2018-11-18 09:17:30,166 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:17:30" (1/1) ... [2018-11-18 09:17:30,167 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-18 09:17:30,167 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-18 09:17:30,167 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-18 09:17:30,167 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-18 09:17:30,168 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:17:30" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_ca747a89-fa32-4b1c-ada5-8b2fa4328af7/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 [2018-11-18 09:17:30,242 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-18 09:17:30,242 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-18 09:17:30,242 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2018-11-18 09:17:30,242 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-18 09:17:30,242 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2018-11-18 09:17:30,242 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-11-18 09:17:30,242 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2018-11-18 09:17:30,242 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2018-11-18 09:17:30,243 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2018-11-18 09:17:30,243 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2018-11-18 09:17:30,243 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2018-11-18 09:17:30,243 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-18 09:17:30,243 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-18 09:17:30,243 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-18 09:17:30,398 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-18 09:17:30,399 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 09:17:30 BoogieIcfgContainer [2018-11-18 09:17:30,399 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-18 09:17:30,400 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-18 09:17:30,400 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-18 09:17:30,402 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-18 09:17:30,403 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 09:17:29" (1/3) ... [2018-11-18 09:17:30,403 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@26a1f97d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 09:17:30, skipping insertion in model container [2018-11-18 09:17:30,404 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:17:30" (2/3) ... [2018-11-18 09:17:30,404 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@26a1f97d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 09:17:30, skipping insertion in model container [2018-11-18 09:17:30,404 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 09:17:30" (3/3) ... [2018-11-18 09:17:30,406 INFO L112 eAbstractionObserver]: Analyzing ICFG modulus_true-unreach-call_true-no-overflow.i [2018-11-18 09:17:30,414 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-18 09:17:30,421 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 4 error locations. [2018-11-18 09:17:30,436 INFO L257 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2018-11-18 09:17:30,464 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-18 09:17:30,464 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-18 09:17:30,464 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-18 09:17:30,464 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-18 09:17:30,465 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-18 09:17:30,465 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-18 09:17:30,465 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-18 09:17:30,465 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-18 09:17:30,465 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-18 09:17:30,480 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states. [2018-11-18 09:17:30,485 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2018-11-18 09:17:30,486 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 09:17:30,486 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2018-11-18 09:17:30,488 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-18 09:17:30,493 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 09:17:30,494 INFO L82 PathProgramCache]: Analyzing trace with hash -1544538078, now seen corresponding path program 1 times [2018-11-18 09:17:30,495 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 09:17:30,496 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 09:17:30,532 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:17:30,532 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 09:17:30,532 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:17:30,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 09:17:30,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 09:17:30,573 INFO L442 BasicCegarLoop]: Counterexample might be feasible [2018-11-18 09:17:30,589 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.11 09:17:30 BoogieIcfgContainer [2018-11-18 09:17:30,589 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-18 09:17:30,590 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-18 09:17:30,590 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-18 09:17:30,590 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-18 09:17:30,591 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 09:17:30" (3/4) ... [2018-11-18 09:17:30,594 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-11-18 09:17:30,594 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-18 09:17:30,595 INFO L168 Benchmark]: Toolchain (without parser) took 607.03 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 122.2 MB). Free memory was 960.7 MB in the beginning and 1.1 GB in the end (delta: -132.8 MB). There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 09:17:30,596 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 985.4 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 09:17:30,597 INFO L168 Benchmark]: CACSL2BoogieTranslator took 157.19 ms. Allocated memory is still 1.0 GB. Free memory was 960.7 MB in the beginning and 950.0 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-18 09:17:30,597 INFO L168 Benchmark]: Boogie Preprocessor took 20.85 ms. Allocated memory is still 1.0 GB. Free memory was 950.0 MB in the beginning and 947.3 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-18 09:17:30,598 INFO L168 Benchmark]: RCFGBuilder took 231.91 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 122.2 MB). Free memory was 947.3 MB in the beginning and 1.1 GB in the end (delta: -157.0 MB). Peak memory consumption was 14.3 MB. Max. memory is 11.5 GB. [2018-11-18 09:17:30,599 INFO L168 Benchmark]: TraceAbstraction took 189.94 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: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-18 09:17:30,599 INFO L168 Benchmark]: Witness Printer took 4.10 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. [2018-11-18 09:17:30,602 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 985.4 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 157.19 ms. Allocated memory is still 1.0 GB. Free memory was 960.7 MB in the beginning and 950.0 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 20.85 ms. Allocated memory is still 1.0 GB. Free memory was 950.0 MB in the beginning and 947.3 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 231.91 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 122.2 MB). Free memory was 947.3 MB in the beginning and 1.1 GB in the end (delta: -157.0 MB). Peak memory consumption was 14.3 MB. Max. memory is 11.5 GB. * TraceAbstraction took 189.94 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: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Witness Printer took 4.10 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 VAL [n=1, s=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 31 locations, 4 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=31occurred 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, 6 NumberOfCodeBlocks, 6 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...