./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/recursive-simple/sum_non.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 69874e26 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_4ef442c0-005a-49ab-88a5-1210d245f8d9/bin/ukojak/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_4ef442c0-005a-49ab-88a5-1210d245f8d9/bin/ukojak/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_4ef442c0-005a-49ab-88a5-1210d245f8d9/bin/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_4ef442c0-005a-49ab-88a5-1210d245f8d9/bin/ukojak/config/KojakReach.xml -i ../../sv-benchmarks/c/recursive-simple/sum_non.c -s /tmp/vcloud-vcloud-master/worker/run_dir_4ef442c0-005a-49ab-88a5-1210d245f8d9/bin/ukojak/config/svcomp-Overflow-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_4ef442c0-005a-49ab-88a5-1210d245f8d9/bin/ukojak --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 Kojak --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 2355a4d05f76bd59f1e3cc71c2462258521b54a0 ...................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(OVERFLOW) --- Real Ultimate output --- This is Ultimate 0.2.0-69874e2 [2020-12-01 18:20:49,383 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-01 18:20:49,387 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-01 18:20:49,465 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-01 18:20:49,466 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-01 18:20:49,472 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-01 18:20:49,477 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-01 18:20:49,481 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-01 18:20:49,485 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-01 18:20:49,492 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-01 18:20:49,494 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-01 18:20:49,497 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-01 18:20:49,497 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-01 18:20:49,502 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-01 18:20:49,504 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-01 18:20:49,507 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-01 18:20:49,508 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-01 18:20:49,510 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-01 18:20:49,517 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-01 18:20:49,526 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-01 18:20:49,529 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-01 18:20:49,531 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-01 18:20:49,533 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-01 18:20:49,535 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-01 18:20:49,546 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-01 18:20:49,547 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-01 18:20:49,548 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-01 18:20:49,551 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-01 18:20:49,552 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-01 18:20:49,553 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-01 18:20:49,554 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-01 18:20:49,556 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-01 18:20:49,558 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-01 18:20:49,560 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-01 18:20:49,562 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-01 18:20:49,562 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-01 18:20:49,563 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-01 18:20:49,564 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-01 18:20:49,564 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-01 18:20:49,565 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-01 18:20:49,567 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-01 18:20:49,570 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_4ef442c0-005a-49ab-88a5-1210d245f8d9/bin/ukojak/config/svcomp-Overflow-32bit-Kojak_Default.epf [2020-12-01 18:20:49,618 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-01 18:20:49,619 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-01 18:20:49,620 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-12-01 18:20:49,621 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2020-12-01 18:20:49,622 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-01 18:20:49,622 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-01 18:20:49,622 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-01 18:20:49,623 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-01 18:20:49,623 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-12-01 18:20:49,623 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-01 18:20:49,625 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-01 18:20:49,625 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-01 18:20:49,625 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-01 18:20:49,626 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-01 18:20:49,626 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-01 18:20:49,626 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2020-12-01 18:20:49,626 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-01 18:20:49,627 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-01 18:20:49,627 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-01 18:20:49,627 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-01 18:20:49,627 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2020-12-01 18:20:49,628 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2020-12-01 18:20:49,628 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-01 18:20:49,628 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-12-01 18:20:49,629 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2020-12-01 18:20:49,629 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-01 18:20:49,629 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-01 18:20:49,630 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-01 18:20:49,630 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2020-12-01 18:20:49,632 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-01 18:20:49,632 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-01 18:20:49,632 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud-vcloud-master/worker/run_dir_4ef442c0-005a-49ab-88a5-1210d245f8d9/bin/ukojak/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_4ef442c0-005a-49ab-88a5-1210d245f8d9/bin/ukojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2355a4d05f76bd59f1e3cc71c2462258521b54a0 [2020-12-01 18:20:49,995 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-01 18:20:50,027 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-01 18:20:50,030 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-01 18:20:50,032 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-01 18:20:50,033 INFO L275 PluginConnector]: CDTParser initialized [2020-12-01 18:20:50,034 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_4ef442c0-005a-49ab-88a5-1210d245f8d9/bin/ukojak/../../sv-benchmarks/c/recursive-simple/sum_non.c [2020-12-01 18:20:50,143 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_4ef442c0-005a-49ab-88a5-1210d245f8d9/bin/ukojak/data/c9f579674/42010974838b409cbb4c36e1b3760ecb/FLAG8fbc94aee [2020-12-01 18:20:50,699 INFO L306 CDTParser]: Found 1 translation units. [2020-12-01 18:20:50,699 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_4ef442c0-005a-49ab-88a5-1210d245f8d9/sv-benchmarks/c/recursive-simple/sum_non.c [2020-12-01 18:20:50,706 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_4ef442c0-005a-49ab-88a5-1210d245f8d9/bin/ukojak/data/c9f579674/42010974838b409cbb4c36e1b3760ecb/FLAG8fbc94aee [2020-12-01 18:20:51,082 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_4ef442c0-005a-49ab-88a5-1210d245f8d9/bin/ukojak/data/c9f579674/42010974838b409cbb4c36e1b3760ecb [2020-12-01 18:20:51,085 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-01 18:20:51,087 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-01 18:20:51,089 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-01 18:20:51,090 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-01 18:20:51,098 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-01 18:20:51,099 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 06:20:51" (1/1) ... [2020-12-01 18:20:51,102 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6f467b62 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 06:20:51, skipping insertion in model container [2020-12-01 18:20:51,104 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 06:20:51" (1/1) ... [2020-12-01 18:20:51,112 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-01 18:20:51,129 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-01 18:20:51,339 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-01 18:20:51,369 INFO L203 MainTranslator]: Completed pre-run [2020-12-01 18:20:51,393 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-01 18:20:51,420 INFO L208 MainTranslator]: Completed translation [2020-12-01 18:20:51,421 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 06:20:51 WrapperNode [2020-12-01 18:20:51,422 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-01 18:20:51,426 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-01 18:20:51,427 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-01 18:20:51,429 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-01 18:20:51,439 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 06:20:51" (1/1) ... [2020-12-01 18:20:51,450 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 06:20:51" (1/1) ... [2020-12-01 18:20:51,474 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-01 18:20:51,476 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-01 18:20:51,476 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-01 18:20:51,476 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-01 18:20:51,497 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 06:20:51" (1/1) ... [2020-12-01 18:20:51,497 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 06:20:51" (1/1) ... [2020-12-01 18:20:51,513 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 06:20:51" (1/1) ... [2020-12-01 18:20:51,514 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 06:20:51" (1/1) ... [2020-12-01 18:20:51,517 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 06:20:51" (1/1) ... [2020-12-01 18:20:51,519 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 06:20:51" (1/1) ... [2020-12-01 18:20:51,520 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 06:20:51" (1/1) ... [2020-12-01 18:20:51,522 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-01 18:20:51,524 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-01 18:20:51,524 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-01 18:20:51,524 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-01 18:20:51,526 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 06:20:51" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_4ef442c0-005a-49ab-88a5-1210d245f8d9/bin/ukojak/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (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:10000 [2020-12-01 18:20:51,611 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-01 18:20:51,612 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-01 18:20:51,612 INFO L130 BoogieDeclarations]: Found specification of procedure sum [2020-12-01 18:20:51,612 INFO L138 BoogieDeclarations]: Found implementation of procedure sum [2020-12-01 18:20:51,612 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-01 18:20:51,613 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-01 18:20:51,983 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-01 18:20:51,997 INFO L298 CfgBuilder]: Removed 6 assume(true) statements. [2020-12-01 18:20:52,000 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 06:20:52 BoogieIcfgContainer [2020-12-01 18:20:52,001 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-01 18:20:52,002 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2020-12-01 18:20:52,002 INFO L271 PluginConnector]: Initializing CodeCheck... [2020-12-01 18:20:52,015 INFO L275 PluginConnector]: CodeCheck initialized [2020-12-01 18:20:52,016 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 06:20:52" (1/1) ... [2020-12-01 18:20:52,027 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 18:20:52,097 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 18:20:52,109 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 26 states and 27 transitions. [2020-12-01 18:20:52,126 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 27 transitions. [2020-12-01 18:20:52,128 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-12-01 18:20:52,128 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 18:20:52,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 18:20:52,447 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 18:20:52,565 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 18:20:52,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 29 states and 32 transitions. [2020-12-01 18:20:52,567 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 32 transitions. [2020-12-01 18:20:52,567 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-12-01 18:20:52,568 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 18:20:52,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 18:20:52,682 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 18:20:53,059 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 18:20:53,060 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 32 states and 37 transitions. [2020-12-01 18:20:53,060 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 37 transitions. [2020-12-01 18:20:53,061 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-12-01 18:20:53,061 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 18:20:53,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 18:20:53,086 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 18:20:53,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 18:20:53,107 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 18:20:53,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 18:20:53,167 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 18:20:53,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 18:20:53,191 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 18:20:53,260 WARN L483 CodeCheckObserver]: This program is UNSAFE, Check terminated with 3 iterations. [2020-12-01 18:20:53,295 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 01.12 06:20:53 ImpRootNode [2020-12-01 18:20:53,295 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2020-12-01 18:20:53,296 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-01 18:20:53,296 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-01 18:20:53,296 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-01 18:20:53,297 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 06:20:52" (3/4) ... [2020-12-01 18:20:53,300 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-12-01 18:20:53,344 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_4ef442c0-005a-49ab-88a5-1210d245f8d9/bin/ukojak/witness.graphml [2020-12-01 18:20:53,345 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-01 18:20:53,348 INFO L168 Benchmark]: Toolchain (without parser) took 2258.89 ms. Allocated memory was 86.0 MB in the beginning and 113.2 MB in the end (delta: 27.3 MB). Free memory was 54.4 MB in the beginning and 40.4 MB in the end (delta: 14.0 MB). Peak memory consumption was 40.4 MB. Max. memory is 16.1 GB. [2020-12-01 18:20:53,349 INFO L168 Benchmark]: CDTParser took 0.32 ms. Allocated memory is still 86.0 MB. Free memory was 41.1 MB in the beginning and 41.1 MB in the end (delta: 38.8 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-01 18:20:53,350 INFO L168 Benchmark]: CACSL2BoogieTranslator took 332.94 ms. Allocated memory is still 86.0 MB. Free memory was 54.2 MB in the beginning and 63.4 MB in the end (delta: -9.1 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-12-01 18:20:53,351 INFO L168 Benchmark]: Boogie Procedure Inliner took 48.35 ms. Allocated memory is still 86.0 MB. Free memory was 63.4 MB in the beginning and 61.8 MB in the end (delta: 1.5 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-01 18:20:53,352 INFO L168 Benchmark]: Boogie Preprocessor took 47.12 ms. Allocated memory is still 86.0 MB. Free memory was 61.8 MB in the beginning and 60.9 MB in the end (delta: 872.6 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-01 18:20:53,353 INFO L168 Benchmark]: RCFGBuilder took 476.99 ms. Allocated memory is still 86.0 MB. Free memory was 60.9 MB in the beginning and 44.7 MB in the end (delta: 16.2 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. [2020-12-01 18:20:53,354 INFO L168 Benchmark]: CodeCheck took 1293.45 ms. Allocated memory was 86.0 MB in the beginning and 113.2 MB in the end (delta: 27.3 MB). Free memory was 44.7 MB in the beginning and 41.6 MB in the end (delta: 3.1 MB). Peak memory consumption was 30.9 MB. Max. memory is 16.1 GB. [2020-12-01 18:20:53,355 INFO L168 Benchmark]: Witness Printer took 48.94 ms. Allocated memory is still 113.2 MB. Free memory was 41.6 MB in the beginning and 40.4 MB in the end (delta: 1.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-01 18:20:53,360 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck: - StatisticsResult: Ultimate CodeCheck benchmark data CFG has 2 procedures, 26 locations, 8 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 1.2s, OverallIterations: 3, TraceHistogramMax: 0, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 20 SDtfs, 4 SDslu, 0 SDs, 0 SdLazy, 70 SolverSat, 30 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 83 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 75 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 16 NumberOfCodeBlocks, 16 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 8 ConstructedInterpolants, 0 QuantifiedInterpolants, 104 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, 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: No data available, ReuseStatistics: No data available - CounterExampleResult [Line: 8]: integer overflow possible integer overflow possible We found a FailurePath: [L15] int a = __VERIFIER_nondet_int(); [L16] int b = __VERIFIER_nondet_int(); [L17] CALL sum(a, b) VAL [\old(m)=-1, \old(n)=-2147483648] [L7] COND TRUE n <= 0 VAL [\old(m)=-1, \old(n)=-2147483648, m=-1, n=-2147483648] [L8] m + n VAL [\old(m)=-1, \old(n)=-2147483648, m=-1, n=-2147483648] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32 ms. Allocated memory is still 86.0 MB. Free memory was 41.1 MB in the beginning and 41.1 MB in the end (delta: 38.8 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 332.94 ms. Allocated memory is still 86.0 MB. Free memory was 54.2 MB in the beginning and 63.4 MB in the end (delta: -9.1 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 48.35 ms. Allocated memory is still 86.0 MB. Free memory was 63.4 MB in the beginning and 61.8 MB in the end (delta: 1.5 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 47.12 ms. Allocated memory is still 86.0 MB. Free memory was 61.8 MB in the beginning and 60.9 MB in the end (delta: 872.6 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 476.99 ms. Allocated memory is still 86.0 MB. Free memory was 60.9 MB in the beginning and 44.7 MB in the end (delta: 16.2 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. * CodeCheck took 1293.45 ms. Allocated memory was 86.0 MB in the beginning and 113.2 MB in the end (delta: 27.3 MB). Free memory was 44.7 MB in the beginning and 41.6 MB in the end (delta: 3.1 MB). Peak memory consumption was 30.9 MB. Max. memory is 16.1 GB. * Witness Printer took 48.94 ms. Allocated memory is still 113.2 MB. Free memory was 41.6 MB in the beginning and 40.4 MB in the end (delta: 1.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...