./Ultimate.py --spec ../../sv-benchmarks/c/NoOverflows.prp --file ../../sv-benchmarks/c/termination-crafted-lit/PodelskiRybalchenko-LICS2004-Fig2_false-no-overflow.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 5842f4b8 Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_4d8cb33b-a9e9-477a-8167-235bd0dbcbaa/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_4d8cb33b-a9e9-477a-8167-235bd0dbcbaa/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_4d8cb33b-a9e9-477a-8167-235bd0dbcbaa/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_4d8cb33b-a9e9-477a-8167-235bd0dbcbaa/bin-2019/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/termination-crafted-lit/PodelskiRybalchenko-LICS2004-Fig2_false-no-overflow.c -s /tmp/vcloud-vcloud-master/worker/working_dir_4d8cb33b-a9e9-477a-8167-235bd0dbcbaa/bin-2019/uautomizer/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_4d8cb33b-a9e9-477a-8167-235bd0dbcbaa/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 64bit --witnessprinter.graph.data.programhash 5155088d89d02424835a418b2f1dfc7cb44efefa ............................................................................................................................................................................................................................................................................................................................................................................... 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 0.1.23-5842f4b [2018-11-18 14:13:05,344 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-18 14:13:05,346 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-18 14:13:05,354 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-18 14:13:05,354 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-18 14:13:05,355 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-18 14:13:05,356 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-18 14:13:05,358 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-18 14:13:05,359 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-18 14:13:05,360 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-18 14:13:05,361 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-18 14:13:05,361 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-18 14:13:05,362 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-18 14:13:05,363 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-18 14:13:05,364 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-18 14:13:05,364 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-18 14:13:05,365 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-18 14:13:05,367 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-18 14:13:05,368 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-18 14:13:05,370 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-18 14:13:05,371 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-18 14:13:05,372 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-18 14:13:05,374 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-18 14:13:05,374 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-18 14:13:05,374 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-18 14:13:05,375 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-18 14:13:05,376 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-18 14:13:05,377 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-18 14:13:05,377 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-18 14:13:05,378 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-18 14:13:05,378 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-18 14:13:05,379 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-18 14:13:05,379 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-18 14:13:05,380 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-18 14:13:05,380 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-18 14:13:05,381 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-18 14:13:05,381 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_4d8cb33b-a9e9-477a-8167-235bd0dbcbaa/bin-2019/uautomizer/config/svcomp-Overflow-64bit-Automizer_Default.epf [2018-11-18 14:13:05,396 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-18 14:13:05,396 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-18 14:13:05,397 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-18 14:13:05,397 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-11-18 14:13:05,398 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-18 14:13:05,398 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-18 14:13:05,398 INFO L133 SettingsManager]: * Use SBE=true [2018-11-18 14:13:05,398 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-18 14:13:05,398 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-11-18 14:13:05,399 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-18 14:13:05,399 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-18 14:13:05,399 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-18 14:13:05,399 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-18 14:13:05,399 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-18 14:13:05,400 INFO L133 SettingsManager]: * Check absence of signed integer overflows=true [2018-11-18 14:13:05,400 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-18 14:13:05,400 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-18 14:13:05,400 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-18 14:13:05,400 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-18 14:13:05,400 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-18 14:13:05,401 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-18 14:13:05,401 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-18 14:13:05,401 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-18 14:13:05,401 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-18 14:13:05,401 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-18 14:13:05,402 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-18 14:13:05,402 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-18 14:13:05,402 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-18 14:13:05,402 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-18 14:13:05,402 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_4d8cb33b-a9e9-477a-8167-235bd0dbcbaa/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 -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5155088d89d02424835a418b2f1dfc7cb44efefa [2018-11-18 14:13:05,430 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-18 14:13:05,441 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-18 14:13:05,444 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-18 14:13:05,445 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-18 14:13:05,445 INFO L276 PluginConnector]: CDTParser initialized [2018-11-18 14:13:05,446 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_4d8cb33b-a9e9-477a-8167-235bd0dbcbaa/bin-2019/uautomizer/../../sv-benchmarks/c/termination-crafted-lit/PodelskiRybalchenko-LICS2004-Fig2_false-no-overflow.c [2018-11-18 14:13:05,493 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_4d8cb33b-a9e9-477a-8167-235bd0dbcbaa/bin-2019/uautomizer/data/2eee43b5f/ae9dc8b29d6d45719984145f05fc4dc8/FLAGff28ebba1 [2018-11-18 14:13:05,890 INFO L307 CDTParser]: Found 1 translation units. [2018-11-18 14:13:05,890 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_4d8cb33b-a9e9-477a-8167-235bd0dbcbaa/sv-benchmarks/c/termination-crafted-lit/PodelskiRybalchenko-LICS2004-Fig2_false-no-overflow.c [2018-11-18 14:13:05,894 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_4d8cb33b-a9e9-477a-8167-235bd0dbcbaa/bin-2019/uautomizer/data/2eee43b5f/ae9dc8b29d6d45719984145f05fc4dc8/FLAGff28ebba1 [2018-11-18 14:13:05,902 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_4d8cb33b-a9e9-477a-8167-235bd0dbcbaa/bin-2019/uautomizer/data/2eee43b5f/ae9dc8b29d6d45719984145f05fc4dc8 [2018-11-18 14:13:05,904 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-18 14:13:05,905 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-18 14:13:05,906 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-18 14:13:05,906 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-18 14:13:05,908 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-18 14:13:05,908 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 02:13:05" (1/1) ... [2018-11-18 14:13:05,910 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@64c0c63 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:13:05, skipping insertion in model container [2018-11-18 14:13:05,911 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 02:13:05" (1/1) ... [2018-11-18 14:13:05,918 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-18 14:13:05,929 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-18 14:13:06,032 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 14:13:06,034 INFO L191 MainTranslator]: Completed pre-run [2018-11-18 14:13:06,043 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 14:13:06,051 INFO L195 MainTranslator]: Completed translation [2018-11-18 14:13:06,051 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:13:06 WrapperNode [2018-11-18 14:13:06,051 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-18 14:13:06,052 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-18 14:13:06,052 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-18 14:13:06,052 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-18 14:13:06,059 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:13:06" (1/1) ... [2018-11-18 14:13:06,059 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:13:06" (1/1) ... [2018-11-18 14:13:06,062 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:13:06" (1/1) ... [2018-11-18 14:13:06,062 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:13:06" (1/1) ... [2018-11-18 14:13:06,064 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:13:06" (1/1) ... [2018-11-18 14:13:06,066 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:13:06" (1/1) ... [2018-11-18 14:13:06,067 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:13:06" (1/1) ... [2018-11-18 14:13:06,068 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-18 14:13:06,068 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-18 14:13:06,068 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-18 14:13:06,068 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-18 14:13:06,069 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:13:06" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_4d8cb33b-a9e9-477a-8167-235bd0dbcbaa/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 14:13:06,135 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-18 14:13:06,135 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-18 14:13:06,135 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-18 14:13:06,135 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2018-11-18 14:13:06,135 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-18 14:13:06,135 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-18 14:13:06,135 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-18 14:13:06,225 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-18 14:13:06,225 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 02:13:06 BoogieIcfgContainer [2018-11-18 14:13:06,225 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-18 14:13:06,226 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-18 14:13:06,226 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-18 14:13:06,228 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-18 14:13:06,228 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 02:13:05" (1/3) ... [2018-11-18 14:13:06,229 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1eda1c81 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 02:13:06, skipping insertion in model container [2018-11-18 14:13:06,229 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:13:06" (2/3) ... [2018-11-18 14:13:06,230 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1eda1c81 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 02:13:06, skipping insertion in model container [2018-11-18 14:13:06,230 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 02:13:06" (3/3) ... [2018-11-18 14:13:06,231 INFO L112 eAbstractionObserver]: Analyzing ICFG PodelskiRybalchenko-LICS2004-Fig2_false-no-overflow.c [2018-11-18 14:13:06,237 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-18 14:13:06,241 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 6 error locations. [2018-11-18 14:13:06,250 INFO L257 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2018-11-18 14:13:06,267 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-18 14:13:06,267 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-18 14:13:06,268 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-18 14:13:06,268 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-18 14:13:06,268 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-18 14:13:06,268 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-18 14:13:06,268 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-18 14:13:06,268 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-18 14:13:06,268 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-18 14:13:06,278 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states. [2018-11-18 14:13:06,281 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-11-18 14:13:06,282 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 14:13:06,282 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 14:13:06,283 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-18 14:13:06,287 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 14:13:06,287 INFO L82 PathProgramCache]: Analyzing trace with hash 1241711279, now seen corresponding path program 1 times [2018-11-18 14:13:06,288 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 14:13:06,288 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 14:13:06,317 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:13:06,318 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 14:13:06,318 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:13:06,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 14:13:06,376 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 14:13:06,378 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 14:13:06,378 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-18 14:13:06,381 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-18 14:13:06,388 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-18 14:13:06,389 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-11-18 14:13:06,390 INFO L87 Difference]: Start difference. First operand 25 states. Second operand 4 states. [2018-11-18 14:13:06,466 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 14:13:06,466 INFO L93 Difference]: Finished difference Result 56 states and 64 transitions. [2018-11-18 14:13:06,467 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-18 14:13:06,467 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2018-11-18 14:13:06,468 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 14:13:06,473 INFO L225 Difference]: With dead ends: 56 [2018-11-18 14:13:06,473 INFO L226 Difference]: Without dead ends: 36 [2018-11-18 14:13:06,475 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-11-18 14:13:06,487 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2018-11-18 14:13:06,496 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 25. [2018-11-18 14:13:06,497 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2018-11-18 14:13:06,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 28 transitions. [2018-11-18 14:13:06,499 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 28 transitions. Word has length 9 [2018-11-18 14:13:06,499 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 14:13:06,499 INFO L480 AbstractCegarLoop]: Abstraction has 25 states and 28 transitions. [2018-11-18 14:13:06,499 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-18 14:13:06,499 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 28 transitions. [2018-11-18 14:13:06,500 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-11-18 14:13:06,500 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 14:13:06,500 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 14:13:06,500 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-18 14:13:06,500 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 14:13:06,500 INFO L82 PathProgramCache]: Analyzing trace with hash 1241711471, now seen corresponding path program 1 times [2018-11-18 14:13:06,500 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 14:13:06,501 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 14:13:06,501 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:13:06,501 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 14:13:06,501 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:13:06,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 14:13:06,524 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 14:13:06,524 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 14:13:06,524 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-18 14:13:06,526 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-18 14:13:06,526 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-18 14:13:06,526 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-11-18 14:13:06,526 INFO L87 Difference]: Start difference. First operand 25 states and 28 transitions. Second operand 4 states. [2018-11-18 14:13:06,569 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 14:13:06,569 INFO L93 Difference]: Finished difference Result 43 states and 47 transitions. [2018-11-18 14:13:06,570 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-18 14:13:06,570 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2018-11-18 14:13:06,570 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 14:13:06,571 INFO L225 Difference]: With dead ends: 43 [2018-11-18 14:13:06,571 INFO L226 Difference]: Without dead ends: 42 [2018-11-18 14:13:06,571 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-11-18 14:13:06,572 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2018-11-18 14:13:06,575 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 29. [2018-11-18 14:13:06,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2018-11-18 14:13:06,575 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 33 transitions. [2018-11-18 14:13:06,575 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 33 transitions. Word has length 9 [2018-11-18 14:13:06,576 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 14:13:06,576 INFO L480 AbstractCegarLoop]: Abstraction has 29 states and 33 transitions. [2018-11-18 14:13:06,576 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-18 14:13:06,576 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 33 transitions. [2018-11-18 14:13:06,576 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-11-18 14:13:06,576 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 14:13:06,576 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 14:13:06,577 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-18 14:13:06,577 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 14:13:06,577 INFO L82 PathProgramCache]: Analyzing trace with hash -161655964, now seen corresponding path program 1 times [2018-11-18 14:13:06,577 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 14:13:06,577 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 14:13:06,578 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:13:06,578 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 14:13:06,578 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:13:06,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 14:13:06,596 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 14:13:06,597 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 14:13:06,597 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-18 14:13:06,597 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-18 14:13:06,597 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-18 14:13:06,597 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-18 14:13:06,598 INFO L87 Difference]: Start difference. First operand 29 states and 33 transitions. Second operand 3 states. [2018-11-18 14:13:06,619 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 14:13:06,619 INFO L93 Difference]: Finished difference Result 29 states and 33 transitions. [2018-11-18 14:13:06,620 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-18 14:13:06,620 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2018-11-18 14:13:06,620 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 14:13:06,621 INFO L225 Difference]: With dead ends: 29 [2018-11-18 14:13:06,621 INFO L226 Difference]: Without dead ends: 27 [2018-11-18 14:13:06,621 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-18 14:13:06,621 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2018-11-18 14:13:06,624 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2018-11-18 14:13:06,624 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2018-11-18 14:13:06,625 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 30 transitions. [2018-11-18 14:13:06,625 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 30 transitions. Word has length 10 [2018-11-18 14:13:06,625 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 14:13:06,625 INFO L480 AbstractCegarLoop]: Abstraction has 27 states and 30 transitions. [2018-11-18 14:13:06,625 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-18 14:13:06,625 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 30 transitions. [2018-11-18 14:13:06,626 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-11-18 14:13:06,626 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 14:13:06,626 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 14:13:06,626 INFO L423 AbstractCegarLoop]: === Iteration 4 === [mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-18 14:13:06,626 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 14:13:06,627 INFO L82 PathProgramCache]: Analyzing trace with hash -161650006, now seen corresponding path program 1 times [2018-11-18 14:13:06,627 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 14:13:06,627 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 14:13:06,627 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:13:06,628 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 14:13:06,628 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:13:06,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 14:13:06,652 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 14:13:06,652 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 14:13:06,652 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-18 14:13:06,653 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-18 14:13:06,653 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-18 14:13:06,653 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-18 14:13:06,653 INFO L87 Difference]: Start difference. First operand 27 states and 30 transitions. Second operand 3 states. [2018-11-18 14:13:06,659 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 14:13:06,660 INFO L93 Difference]: Finished difference Result 27 states and 30 transitions. [2018-11-18 14:13:06,660 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-18 14:13:06,660 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2018-11-18 14:13:06,660 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 14:13:06,661 INFO L225 Difference]: With dead ends: 27 [2018-11-18 14:13:06,661 INFO L226 Difference]: Without dead ends: 26 [2018-11-18 14:13:06,661 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-18 14:13:06,661 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2018-11-18 14:13:06,664 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 26. [2018-11-18 14:13:06,664 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2018-11-18 14:13:06,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 29 transitions. [2018-11-18 14:13:06,665 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 29 transitions. Word has length 10 [2018-11-18 14:13:06,665 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 14:13:06,665 INFO L480 AbstractCegarLoop]: Abstraction has 26 states and 29 transitions. [2018-11-18 14:13:06,666 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-18 14:13:06,666 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 29 transitions. [2018-11-18 14:13:06,666 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-11-18 14:13:06,666 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 14:13:06,666 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 14:13:06,666 INFO L423 AbstractCegarLoop]: === Iteration 5 === [mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-18 14:13:06,667 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 14:13:06,667 INFO L82 PathProgramCache]: Analyzing trace with hash -716182831, now seen corresponding path program 1 times [2018-11-18 14:13:06,667 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 14:13:06,667 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 14:13:06,668 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:13:06,668 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 14:13:06,668 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:13:06,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 14:13:06,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 14:13:06,693 INFO L442 BasicCegarLoop]: Counterexample might be feasible [2018-11-18 14:13:06,712 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.11 02:13:06 BoogieIcfgContainer [2018-11-18 14:13:06,712 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-18 14:13:06,712 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-18 14:13:06,712 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-18 14:13:06,712 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-18 14:13:06,713 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 02:13:06" (3/4) ... [2018-11-18 14:13:06,715 INFO L138 WitnessPrinter]: Generating witness for reachability counterexample [2018-11-18 14:13:06,741 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_4d8cb33b-a9e9-477a-8167-235bd0dbcbaa/bin-2019/uautomizer/witness.graphml [2018-11-18 14:13:06,741 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-18 14:13:06,742 INFO L168 Benchmark]: Toolchain (without parser) took 837.27 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 166.2 MB). Free memory was 959.1 MB in the beginning and 1.1 GB in the end (delta: -145.6 MB). Peak memory consumption was 20.6 MB. Max. memory is 11.5 GB. [2018-11-18 14:13:06,743 INFO L168 Benchmark]: CDTParser took 0.12 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 14:13:06,743 INFO L168 Benchmark]: CACSL2BoogieTranslator took 146.10 ms. Allocated memory is still 1.0 GB. Free memory was 959.1 MB in the beginning and 948.4 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-18 14:13:06,744 INFO L168 Benchmark]: Boogie Preprocessor took 15.95 ms. Allocated memory is still 1.0 GB. Free memory was 948.4 MB in the beginning and 945.7 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-18 14:13:06,744 INFO L168 Benchmark]: RCFGBuilder took 157.11 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 166.2 MB). Free memory was 945.7 MB in the beginning and 1.2 GB in the end (delta: -207.3 MB). Peak memory consumption was 19.7 MB. Max. memory is 11.5 GB. [2018-11-18 14:13:06,745 INFO L168 Benchmark]: TraceAbstraction took 486.18 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 48.3 MB). Peak memory consumption was 48.3 MB. Max. memory is 11.5 GB. [2018-11-18 14:13:06,745 INFO L168 Benchmark]: Witness Printer took 29.19 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 14:13:06,747 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12 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 146.10 ms. Allocated memory is still 1.0 GB. Free memory was 959.1 MB in the beginning and 948.4 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 15.95 ms. Allocated memory is still 1.0 GB. Free memory was 948.4 MB in the beginning and 945.7 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 157.11 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 166.2 MB). Free memory was 945.7 MB in the beginning and 1.2 GB in the end (delta: -207.3 MB). Peak memory consumption was 19.7 MB. Max. memory is 11.5 GB. * TraceAbstraction took 486.18 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 48.3 MB). Peak memory consumption was 48.3 MB. Max. memory is 11.5 GB. * Witness Printer took 29.19 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: - CounterExampleResult [Line: 22]: integer overflow possible integer overflow possible We found a FailurePath: [L12] int x = __VERIFIER_nondet_int(); [L13] int y = __VERIFIER_nondet_int(); [L14] COND TRUE x > 0 && y > 0 [L15] int old_x = x; [L16] int old_y = y; [L17] COND FALSE !(__VERIFIER_nondet_int()) [L21] EXPR old_y - 2 [L21] x = old_y - 2 VAL [old_x=2147483647, old_y=1, x=-1, y=1] [L22] old_x + 1 VAL [old_x=2147483647, old_y=1, x=-1, y=1] - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 25 locations, 6 error locations. UNSAFE Result, 0.4s OverallTime, 5 OverallIterations, 1 TraceHistogramMax, 0.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 72 SDtfs, 74 SDslu, 80 SDs, 0 SdLazy, 45 SolverSat, 6 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 12 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=29occurred in iteration=2, 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: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 24 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 49 NumberOfCodeBlocks, 49 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 34 ConstructedInterpolants, 0 QuantifiedInterpolants, 526 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...