./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-numeric/MultCommutative-1.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version f470102c Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_7e4c39d3-b4e1-4644-a590-934fe084fd12/bin/ukojak/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_7e4c39d3-b4e1-4644-a590-934fe084fd12/bin/ukojak/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_7e4c39d3-b4e1-4644-a590-934fe084fd12/bin/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_7e4c39d3-b4e1-4644-a590-934fe084fd12/bin/ukojak/config/KojakReach.xml -i ../../sv-benchmarks/c/termination-numeric/MultCommutative-1.c -s /tmp/vcloud-vcloud-master/worker/run_dir_7e4c39d3-b4e1-4644-a590-934fe084fd12/bin/ukojak/config/svcomp-Overflow-64bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_7e4c39d3-b4e1-4644-a590-934fe084fd12/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 64bit --witnessprinter.graph.data.programhash a7af5709195f6c1eec73f2559f8e654af4840835 .......................................................................................................................................................................................................................................................................................................... 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 0.1.25-f470102 [2019-12-01 18:06:44,414 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-01 18:06:44,415 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-01 18:06:44,422 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-01 18:06:44,423 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-01 18:06:44,423 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-01 18:06:44,424 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-01 18:06:44,426 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-01 18:06:44,427 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-01 18:06:44,428 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-01 18:06:44,428 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-01 18:06:44,429 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-01 18:06:44,429 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-01 18:06:44,430 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-01 18:06:44,431 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-01 18:06:44,432 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-01 18:06:44,432 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-01 18:06:44,433 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-01 18:06:44,434 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-01 18:06:44,436 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-01 18:06:44,437 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-01 18:06:44,437 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-01 18:06:44,438 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-01 18:06:44,439 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-01 18:06:44,440 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-01 18:06:44,440 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-01 18:06:44,441 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-01 18:06:44,441 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-01 18:06:44,441 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-01 18:06:44,442 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-01 18:06:44,442 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-01 18:06:44,442 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-01 18:06:44,443 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-01 18:06:44,443 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-01 18:06:44,444 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-01 18:06:44,444 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-01 18:06:44,445 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-01 18:06:44,445 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-01 18:06:44,445 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-01 18:06:44,445 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-01 18:06:44,446 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-01 18:06:44,446 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_7e4c39d3-b4e1-4644-a590-934fe084fd12/bin/ukojak/config/svcomp-Overflow-64bit-Kojak_Default.epf [2019-12-01 18:06:44,455 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-01 18:06:44,455 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-01 18:06:44,456 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-12-01 18:06:44,456 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2019-12-01 18:06:44,456 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-01 18:06:44,456 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-01 18:06:44,457 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-01 18:06:44,457 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-12-01 18:06:44,457 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-01 18:06:44,457 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-01 18:06:44,457 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-01 18:06:44,457 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-01 18:06:44,457 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-01 18:06:44,458 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2019-12-01 18:06:44,458 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-01 18:06:44,458 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-01 18:06:44,458 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-01 18:06:44,458 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2019-12-01 18:06:44,458 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2019-12-01 18:06:44,458 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-01 18:06:44,458 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-01 18:06:44,459 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2019-12-01 18:06:44,459 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-01 18:06:44,459 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-01 18:06:44,459 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-01 18:06:44,459 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2019-12-01 18:06:44,459 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-01 18:06:44,459 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-01 18:06:44,460 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 -> /tmp/vcloud-vcloud-master/worker/run_dir_7e4c39d3-b4e1-4644-a590-934fe084fd12/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 -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a7af5709195f6c1eec73f2559f8e654af4840835 [2019-12-01 18:06:44,564 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-01 18:06:44,572 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-01 18:06:44,574 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-01 18:06:44,575 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-01 18:06:44,575 INFO L275 PluginConnector]: CDTParser initialized [2019-12-01 18:06:44,576 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_7e4c39d3-b4e1-4644-a590-934fe084fd12/bin/ukojak/../../sv-benchmarks/c/termination-numeric/MultCommutative-1.c [2019-12-01 18:06:44,614 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_7e4c39d3-b4e1-4644-a590-934fe084fd12/bin/ukojak/data/97520cf52/3d8a28c2d5484fb1af67340e70d2adcc/FLAG5cad4a966 [2019-12-01 18:06:45,049 INFO L306 CDTParser]: Found 1 translation units. [2019-12-01 18:06:45,050 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_7e4c39d3-b4e1-4644-a590-934fe084fd12/sv-benchmarks/c/termination-numeric/MultCommutative-1.c [2019-12-01 18:06:45,054 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_7e4c39d3-b4e1-4644-a590-934fe084fd12/bin/ukojak/data/97520cf52/3d8a28c2d5484fb1af67340e70d2adcc/FLAG5cad4a966 [2019-12-01 18:06:45,063 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_7e4c39d3-b4e1-4644-a590-934fe084fd12/bin/ukojak/data/97520cf52/3d8a28c2d5484fb1af67340e70d2adcc [2019-12-01 18:06:45,065 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-01 18:06:45,066 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-01 18:06:45,066 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-01 18:06:45,066 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-01 18:06:45,069 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-01 18:06:45,069 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 06:06:45" (1/1) ... [2019-12-01 18:06:45,071 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5e4de5e3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 06:06:45, skipping insertion in model container [2019-12-01 18:06:45,071 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 06:06:45" (1/1) ... [2019-12-01 18:06:45,076 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-01 18:06:45,086 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-01 18:06:45,186 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-01 18:06:45,189 INFO L203 MainTranslator]: Completed pre-run [2019-12-01 18:06:45,233 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-01 18:06:45,243 INFO L208 MainTranslator]: Completed translation [2019-12-01 18:06:45,244 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 06:06:45 WrapperNode [2019-12-01 18:06:45,244 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-01 18:06:45,245 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-01 18:06:45,245 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-01 18:06:45,245 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-01 18:06:45,253 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 06:06:45" (1/1) ... [2019-12-01 18:06:45,257 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 06:06:45" (1/1) ... [2019-12-01 18:06:45,269 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-01 18:06:45,270 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-01 18:06:45,270 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-01 18:06:45,270 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-01 18:06:45,275 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 06:06:45" (1/1) ... [2019-12-01 18:06:45,276 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 06:06:45" (1/1) ... [2019-12-01 18:06:45,276 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 06:06:45" (1/1) ... [2019-12-01 18:06:45,276 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 06:06:45" (1/1) ... [2019-12-01 18:06:45,278 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 06:06:45" (1/1) ... [2019-12-01 18:06:45,279 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 06:06:45" (1/1) ... [2019-12-01 18:06:45,280 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 06:06:45" (1/1) ... [2019-12-01 18:06:45,281 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-01 18:06:45,281 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-01 18:06:45,281 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-01 18:06:45,281 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-01 18:06:45,281 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 06:06:45" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7e4c39d3-b4e1-4644-a590-934fe084fd12/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 [2019-12-01 18:06:45,321 INFO L130 BoogieDeclarations]: Found specification of procedure mult [2019-12-01 18:06:45,321 INFO L138 BoogieDeclarations]: Found implementation of procedure mult [2019-12-01 18:06:45,321 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-01 18:06:45,321 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-01 18:06:45,457 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-01 18:06:45,457 INFO L287 CfgBuilder]: Removed 4 assume(true) statements. [2019-12-01 18:06:45,458 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 06:06:45 BoogieIcfgContainer [2019-12-01 18:06:45,458 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-01 18:06:45,458 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2019-12-01 18:06:45,458 INFO L271 PluginConnector]: Initializing CodeCheck... [2019-12-01 18:06:45,465 INFO L275 PluginConnector]: CodeCheck initialized [2019-12-01 18:06:45,465 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 06:06:45" (1/1) ... [2019-12-01 18:06:45,471 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-01 18:06:45,489 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-01 18:06:45,496 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 30 states and 36 transitions. [2019-12-01 18:06:45,496 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 36 transitions. [2019-12-01 18:06:45,497 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2019-12-01 18:06:45,497 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-01 18:06:45,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-01 18:06:45,598 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-01 18:06:45,652 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-01 18:06:45,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 32 states and 40 transitions. [2019-12-01 18:06:45,653 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 40 transitions. [2019-12-01 18:06:45,655 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-12-01 18:06:45,656 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-01 18:06:45,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-01 18:06:45,693 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-01 18:06:45,822 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-01 18:06:45,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 36 states and 47 transitions. [2019-12-01 18:06:45,823 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 47 transitions. [2019-12-01 18:06:45,823 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-12-01 18:06:45,823 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-01 18:06:45,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-01 18:06:45,834 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-01 18:06:45,850 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-01 18:06:45,851 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 35 states and 46 transitions. [2019-12-01 18:06:45,851 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 46 transitions. [2019-12-01 18:06:45,852 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2019-12-01 18:06:45,852 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-01 18:06:45,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-01 18:06:45,892 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-01 18:06:45,979 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-01 18:06:45,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 35 states and 45 transitions. [2019-12-01 18:06:45,980 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 45 transitions. [2019-12-01 18:06:45,981 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2019-12-01 18:06:45,981 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-01 18:06:45,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-01 18:06:46,008 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-01 18:06:46,158 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-01 18:06:46,159 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 27 states and 33 transitions. [2019-12-01 18:06:46,159 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 33 transitions. [2019-12-01 18:06:46,160 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2019-12-01 18:06:46,160 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-01 18:06:46,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-01 18:06:46,207 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-01 18:06:46,250 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-01 18:06:46,251 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 29 states and 36 transitions. [2019-12-01 18:06:46,251 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 36 transitions. [2019-12-01 18:06:46,251 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2019-12-01 18:06:46,251 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-01 18:06:46,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-01 18:06:46,284 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-01 18:06:46,502 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-01 18:06:46,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 22 states and 26 transitions. [2019-12-01 18:06:46,503 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 26 transitions. [2019-12-01 18:06:46,503 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-12-01 18:06:46,503 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-01 18:06:46,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-01 18:06:46,613 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-01 18:06:47,042 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-01 18:06:47,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 32 states and 44 transitions. [2019-12-01 18:06:47,043 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 44 transitions. [2019-12-01 18:06:47,044 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2019-12-01 18:06:47,044 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-01 18:06:47,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-01 18:06:47,164 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-01 18:06:47,834 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-01 18:06:47,835 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 43 states and 57 transitions. [2019-12-01 18:06:47,835 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 57 transitions. [2019-12-01 18:06:47,836 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2019-12-01 18:06:47,836 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-01 18:06:47,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-01 18:06:48,066 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 1 proven. 9 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-12-01 18:06:48,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-01 18:06:48,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 167 states to 47 states and 72 transitions. [2019-12-01 18:06:48,777 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 72 transitions. [2019-12-01 18:06:48,777 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2019-12-01 18:06:48,777 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-01 18:06:48,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-01 18:06:48,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-01 18:06:48,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-01 18:06:48,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-01 18:06:48,828 WARN L483 CodeCheckObserver]: This program is UNSAFE, Check terminated with 11 iterations. [2019-12-01 18:06:48,850 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 01.12 06:06:48 ImpRootNode [2019-12-01 18:06:48,850 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2019-12-01 18:06:48,850 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-01 18:06:48,850 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-01 18:06:48,850 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-01 18:06:48,851 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 06:06:45" (3/4) ... [2019-12-01 18:06:48,852 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-12-01 18:06:48,888 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_7e4c39d3-b4e1-4644-a590-934fe084fd12/bin/ukojak/witness.graphml [2019-12-01 18:06:48,888 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-01 18:06:48,890 INFO L168 Benchmark]: Toolchain (without parser) took 3823.50 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 142.6 MB). Free memory was 944.7 MB in the beginning and 1.1 GB in the end (delta: -187.3 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-12-01 18:06:48,890 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 960.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-01 18:06:48,891 INFO L168 Benchmark]: CACSL2BoogieTranslator took 177.83 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 91.2 MB). Free memory was 944.7 MB in the beginning and 1.1 GB in the end (delta: -143.9 MB). Peak memory consumption was 23.4 MB. Max. memory is 11.5 GB. [2019-12-01 18:06:48,891 INFO L168 Benchmark]: Boogie Procedure Inliner took 24.88 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-01 18:06:48,892 INFO L168 Benchmark]: Boogie Preprocessor took 11.06 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2019-12-01 18:06:48,892 INFO L168 Benchmark]: RCFGBuilder took 177.09 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 22.4 MB). Peak memory consumption was 22.4 MB. Max. memory is 11.5 GB. [2019-12-01 18:06:48,893 INFO L168 Benchmark]: CodeCheck took 3391.63 ms. Allocated memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: 51.4 MB). Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: -70.5 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-12-01 18:06:48,894 INFO L168 Benchmark]: Witness Printer took 38.27 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: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 11.5 GB. [2019-12-01 18:06:48,897 INFO L335 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, 30 locations, 6 error locations. Result: UNSAFE, OverallTime: 3.3s, OverallIterations: 11, TraceHistogramMax: 0, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 6888 SDtfs, 6534 SDslu, 704 SDs, 0 SdLazy, 34074 SolverSat, 9956 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1380 GetRequests, 1225 SyntacticMatches, 37 SemanticMatches, 118 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5130 ImplicationChecksByTransitivity, 2.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 167 NumberOfCodeBlocks, 167 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 129 ConstructedInterpolants, 0 QuantifiedInterpolants, 4847 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 10 InterpolantComputations, 7 PerfectInterpolantSequences, 13/28 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: 22]: integer overflow possible integer overflow possible We found a FailurePath: [L26] int m = __VERIFIER_nondet_int(); [L27] COND FALSE !(m < 0) [L30] int n = __VERIFIER_nondet_int(); [L31] COND FALSE !(n < 0) [L34] CALL mult(m, n) VAL [\old(m)=2, \old(n)=2147483647] [L16] COND FALSE !(m < 0) VAL [\old(m)=2, \old(n)=2147483647, m=2, n=2147483647] [L19] COND FALSE !(m == 0) VAL [\old(m)=2, \old(n)=2147483647, m=2, n=2147483647] [L22] EXPR m - 1 VAL [\old(m)=2, \old(n)=2147483647, m=2, n=2147483647] [L22] CALL, EXPR mult(n, m - 1) VAL [\old(m)=1, \old(n)=2147483647] [L16] COND FALSE !(m < 0) VAL [\old(m)=1, \old(n)=2147483647, m=1, n=2147483647] [L19] COND FALSE !(m == 0) VAL [\old(m)=1, \old(n)=2147483647, m=1, n=2147483647] [L22] EXPR m - 1 VAL [\old(m)=1, \old(n)=2147483647, m=1, n=2147483647] [L22] CALL, EXPR mult(n, m - 1) VAL [\old(m)=0, \old(n)=2147483647] [L16] COND FALSE !(m < 0) VAL [\old(m)=0, \old(n)=2147483647, m=0, n=2147483647] [L19] COND TRUE m == 0 [L20] return 0; VAL [\old(m)=0, \old(n)=2147483647, \result=0, m=0, n=2147483647] [L22] RET, EXPR mult(n, m - 1) VAL [\old(m)=1, \old(n)=2147483647, m=1, mult(n, m - 1)=0, n=2147483647] [L22] EXPR n + mult(n, m - 1) [L22] return n + mult(n, m - 1); [L22] RET, EXPR mult(n, m - 1) VAL [\old(m)=2, \old(n)=2147483647, m=2, mult(n, m - 1)=2147483647, n=2147483647] [L22] n + mult(n, m - 1) VAL [\old(m)=2, \old(n)=2147483647, m=2, mult(n, m - 1)=2147483647, n=2147483647] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 960.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 177.83 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 91.2 MB). Free memory was 944.7 MB in the beginning and 1.1 GB in the end (delta: -143.9 MB). Peak memory consumption was 23.4 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 24.88 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 11.06 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 177.09 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 22.4 MB). Peak memory consumption was 22.4 MB. Max. memory is 11.5 GB. * CodeCheck took 3391.63 ms. Allocated memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: 51.4 MB). Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: -70.5 MB). There was no memory consumed. Max. memory is 11.5 GB. * Witness Printer took 38.27 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: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 11.5 GB. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...