./Ultimate.py --spec ../../sv-benchmarks/c/NoOverflows.prp --file ../../sv-benchmarks/c/termination-crafted-lit/ChenFlurMukhopadhyay-SAS2012-Ex1.01_false-no-overflow.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 1dbac8bc Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_2fe0c5f0-03b6-4110-aa66-9e8e066d2fdb/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_2fe0c5f0-03b6-4110-aa66-9e8e066d2fdb/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_2fe0c5f0-03b6-4110-aa66-9e8e066d2fdb/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_2fe0c5f0-03b6-4110-aa66-9e8e066d2fdb/bin-2019/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/termination-crafted-lit/ChenFlurMukhopadhyay-SAS2012-Ex1.01_false-no-overflow.c -s /tmp/vcloud-vcloud-master/worker/working_dir_2fe0c5f0-03b6-4110-aa66-9e8e066d2fdb/bin-2019/uautomizer/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_2fe0c5f0-03b6-4110-aa66-9e8e066d2fdb/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 9088f505b24b0512dbb9fa22d66082b538cf5175 ............................................................................................................................................................................................................................................................... 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 0.1.23-1dbac8b [2018-11-10 12:07:24,044 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-10 12:07:24,045 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-10 12:07:24,053 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-10 12:07:24,053 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-10 12:07:24,054 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-10 12:07:24,055 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-10 12:07:24,057 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-10 12:07:24,058 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-10 12:07:24,059 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-10 12:07:24,060 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-10 12:07:24,060 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-10 12:07:24,061 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-10 12:07:24,061 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-10 12:07:24,062 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-10 12:07:24,063 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-10 12:07:24,064 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-10 12:07:24,065 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-10 12:07:24,067 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-10 12:07:24,068 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-10 12:07:24,069 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-10 12:07:24,070 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-10 12:07:24,072 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-10 12:07:24,072 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-10 12:07:24,072 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-10 12:07:24,073 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-10 12:07:24,074 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-10 12:07:24,074 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-10 12:07:24,075 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-10 12:07:24,076 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-10 12:07:24,076 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-10 12:07:24,076 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-10 12:07:24,077 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-10 12:07:24,077 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-10 12:07:24,078 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-10 12:07:24,078 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-10 12:07:24,079 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_2fe0c5f0-03b6-4110-aa66-9e8e066d2fdb/bin-2019/uautomizer/config/svcomp-Overflow-64bit-Automizer_Default.epf [2018-11-10 12:07:24,086 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-10 12:07:24,086 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-10 12:07:24,087 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-10 12:07:24,087 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-11-10 12:07:24,088 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-10 12:07:24,088 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-10 12:07:24,088 INFO L133 SettingsManager]: * Use SBE=true [2018-11-10 12:07:24,088 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-10 12:07:24,088 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-11-10 12:07:24,090 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-10 12:07:24,090 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-10 12:07:24,090 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-10 12:07:24,090 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-10 12:07:24,090 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-10 12:07:24,090 INFO L133 SettingsManager]: * Check absence of signed integer overflows=true [2018-11-10 12:07:24,090 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-10 12:07:24,091 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-10 12:07:24,091 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-10 12:07:24,091 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-10 12:07:24,091 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-10 12:07:24,091 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-10 12:07:24,091 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-10 12:07:24,092 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-10 12:07:24,092 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-10 12:07:24,092 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-10 12:07:24,092 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-10 12:07:24,092 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-10 12:07:24,092 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-10 12:07:24,092 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_2fe0c5f0-03b6-4110-aa66-9e8e066d2fdb/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 -> 9088f505b24b0512dbb9fa22d66082b538cf5175 [2018-11-10 12:07:24,121 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-10 12:07:24,130 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-10 12:07:24,132 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-10 12:07:24,133 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-10 12:07:24,133 INFO L276 PluginConnector]: CDTParser initialized [2018-11-10 12:07:24,134 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_2fe0c5f0-03b6-4110-aa66-9e8e066d2fdb/bin-2019/uautomizer/../../sv-benchmarks/c/termination-crafted-lit/ChenFlurMukhopadhyay-SAS2012-Ex1.01_false-no-overflow.c [2018-11-10 12:07:24,183 INFO L218 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_2fe0c5f0-03b6-4110-aa66-9e8e066d2fdb/bin-2019/uautomizer/data/12561508c/dd502814bdcb447db1e2fcf1723baa6c/FLAG13e37d7d2 [2018-11-10 12:07:24,512 INFO L298 CDTParser]: Found 1 translation units. [2018-11-10 12:07:24,512 INFO L158 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_2fe0c5f0-03b6-4110-aa66-9e8e066d2fdb/sv-benchmarks/c/termination-crafted-lit/ChenFlurMukhopadhyay-SAS2012-Ex1.01_false-no-overflow.c [2018-11-10 12:07:24,516 INFO L346 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_2fe0c5f0-03b6-4110-aa66-9e8e066d2fdb/bin-2019/uautomizer/data/12561508c/dd502814bdcb447db1e2fcf1723baa6c/FLAG13e37d7d2 [2018-11-10 12:07:24,529 INFO L354 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_2fe0c5f0-03b6-4110-aa66-9e8e066d2fdb/bin-2019/uautomizer/data/12561508c/dd502814bdcb447db1e2fcf1723baa6c [2018-11-10 12:07:24,531 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-10 12:07:24,532 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-10 12:07:24,533 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-10 12:07:24,533 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-10 12:07:24,535 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-10 12:07:24,536 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 12:07:24" (1/1) ... [2018-11-10 12:07:24,538 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@11661478 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:07:24, skipping insertion in model container [2018-11-10 12:07:24,538 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 12:07:24" (1/1) ... [2018-11-10 12:07:24,547 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-10 12:07:24,564 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-10 12:07:24,663 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 12:07:24,665 INFO L189 MainTranslator]: Completed pre-run [2018-11-10 12:07:24,675 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 12:07:24,685 INFO L193 MainTranslator]: Completed translation [2018-11-10 12:07:24,686 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:07:24 WrapperNode [2018-11-10 12:07:24,686 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-10 12:07:24,686 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-10 12:07:24,686 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-10 12:07:24,686 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-10 12:07:24,695 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:07:24" (1/1) ... [2018-11-10 12:07:24,696 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:07:24" (1/1) ... [2018-11-10 12:07:24,699 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:07:24" (1/1) ... [2018-11-10 12:07:24,700 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:07:24" (1/1) ... [2018-11-10 12:07:24,702 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:07:24" (1/1) ... [2018-11-10 12:07:24,705 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:07:24" (1/1) ... [2018-11-10 12:07:24,706 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:07:24" (1/1) ... [2018-11-10 12:07:24,707 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-10 12:07:24,707 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-10 12:07:24,707 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-10 12:07:24,708 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-10 12:07:24,708 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:07:24" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_2fe0c5f0-03b6-4110-aa66-9e8e066d2fdb/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 [2018-11-10 12:07:24,795 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-10 12:07:24,796 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-10 12:07:24,796 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-10 12:07:24,796 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2018-11-10 12:07:24,796 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-10 12:07:24,796 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-10 12:07:24,796 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-10 12:07:24,922 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-10 12:07:24,922 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 12:07:24 BoogieIcfgContainer [2018-11-10 12:07:24,923 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-10 12:07:24,923 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-10 12:07:24,923 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-10 12:07:24,925 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-10 12:07:24,926 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.11 12:07:24" (1/3) ... [2018-11-10 12:07:24,926 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@262fad71 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 12:07:24, skipping insertion in model container [2018-11-10 12:07:24,926 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:07:24" (2/3) ... [2018-11-10 12:07:24,927 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@262fad71 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 12:07:24, skipping insertion in model container [2018-11-10 12:07:24,927 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 12:07:24" (3/3) ... [2018-11-10 12:07:24,929 INFO L112 eAbstractionObserver]: Analyzing ICFG ChenFlurMukhopadhyay-SAS2012-Ex1.01_false-no-overflow.c [2018-11-10 12:07:24,936 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-10 12:07:24,943 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 4 error locations. [2018-11-10 12:07:24,955 INFO L257 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2018-11-10 12:07:24,979 INFO L135 ementStrategyFactory]: Using default assertion order modulation [2018-11-10 12:07:24,979 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-10 12:07:24,979 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-10 12:07:24,980 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-10 12:07:24,980 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-10 12:07:24,980 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-10 12:07:24,980 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-10 12:07:24,980 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-10 12:07:24,980 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-10 12:07:24,994 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states. [2018-11-10 12:07:24,998 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-11-10 12:07:24,998 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 12:07:24,998 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 12:07:25,000 INFO L424 AbstractCegarLoop]: === Iteration 1 === [mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-10 12:07:25,005 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 12:07:25,005 INFO L82 PathProgramCache]: Analyzing trace with hash 604672971, now seen corresponding path program 1 times [2018-11-10 12:07:25,006 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 12:07:25,007 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 12:07:25,048 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 12:07:25,048 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 12:07:25,048 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 12:07:25,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 12:07:25,115 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 12:07:25,117 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 12:07:25,117 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-10 12:07:25,121 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-10 12:07:25,132 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-10 12:07:25,133 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-10 12:07:25,135 INFO L87 Difference]: Start difference. First operand 20 states. Second operand 3 states. [2018-11-10 12:07:25,205 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 12:07:25,205 INFO L93 Difference]: Finished difference Result 25 states and 25 transitions. [2018-11-10 12:07:25,206 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-10 12:07:25,207 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2018-11-10 12:07:25,207 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 12:07:25,213 INFO L225 Difference]: With dead ends: 25 [2018-11-10 12:07:25,214 INFO L226 Difference]: Without dead ends: 13 [2018-11-10 12:07:25,216 INFO L605 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 [2018-11-10 12:07:25,229 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2018-11-10 12:07:25,240 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2018-11-10 12:07:25,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2018-11-10 12:07:25,241 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 13 transitions. [2018-11-10 12:07:25,242 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 13 transitions. Word has length 8 [2018-11-10 12:07:25,242 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 12:07:25,242 INFO L481 AbstractCegarLoop]: Abstraction has 13 states and 13 transitions. [2018-11-10 12:07:25,242 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-10 12:07:25,243 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 13 transitions. [2018-11-10 12:07:25,243 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-11-10 12:07:25,243 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 12:07:25,243 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 12:07:25,244 INFO L424 AbstractCegarLoop]: === Iteration 2 === [mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-10 12:07:25,244 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 12:07:25,244 INFO L82 PathProgramCache]: Analyzing trace with hash 1564992965, now seen corresponding path program 1 times [2018-11-10 12:07:25,244 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 12:07:25,244 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 12:07:25,245 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 12:07:25,245 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 12:07:25,246 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 12:07:25,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 12:07:25,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 12:07:25,267 INFO L442 BasicCegarLoop]: Counterexample might be feasible [2018-11-10 12:07:25,282 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.11 12:07:25 BoogieIcfgContainer [2018-11-10 12:07:25,283 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-10 12:07:25,283 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-10 12:07:25,283 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-10 12:07:25,283 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-10 12:07:25,284 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 12:07:24" (3/4) ... [2018-11-10 12:07:25,286 INFO L138 WitnessPrinter]: Generating witness for reachability counterexample [2018-11-10 12:07:25,314 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_2fe0c5f0-03b6-4110-aa66-9e8e066d2fdb/bin-2019/uautomizer/witness.graphml [2018-11-10 12:07:25,314 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-10 12:07:25,315 INFO L168 Benchmark]: Toolchain (without parser) took 783.54 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 164.6 MB). Free memory was 960.3 MB in the beginning and 1.1 GB in the end (delta: -158.4 MB). Peak memory consumption was 6.2 MB. Max. memory is 11.5 GB. [2018-11-10 12:07:25,316 INFO L168 Benchmark]: CDTParser took 0.13 ms. Allocated memory is still 1.0 GB. Free memory is still 985.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 12:07:25,317 INFO L168 Benchmark]: CACSL2BoogieTranslator took 153.45 ms. Allocated memory is still 1.0 GB. Free memory was 960.3 MB in the beginning and 949.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-10 12:07:25,317 INFO L168 Benchmark]: Boogie Preprocessor took 20.88 ms. Allocated memory is still 1.0 GB. Free memory is still 949.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 12:07:25,317 INFO L168 Benchmark]: RCFGBuilder took 215.38 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 164.6 MB). Free memory was 949.6 MB in the beginning and 1.2 GB in the end (delta: -204.4 MB). Peak memory consumption was 22.4 MB. Max. memory is 11.5 GB. [2018-11-10 12:07:25,318 INFO L168 Benchmark]: TraceAbstraction took 359.71 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: 31.9 MB). Peak memory consumption was 31.9 MB. Max. memory is 11.5 GB. [2018-11-10 12:07:25,319 INFO L168 Benchmark]: Witness Printer took 31.29 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: 3.4 MB). Peak memory consumption was 3.4 MB. Max. memory is 11.5 GB. [2018-11-10 12:07:25,321 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13 ms. Allocated memory is still 1.0 GB. Free memory is still 985.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 153.45 ms. Allocated memory is still 1.0 GB. Free memory was 960.3 MB in the beginning and 949.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 20.88 ms. Allocated memory is still 1.0 GB. Free memory is still 949.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 215.38 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 164.6 MB). Free memory was 949.6 MB in the beginning and 1.2 GB in the end (delta: -204.4 MB). Peak memory consumption was 22.4 MB. Max. memory is 11.5 GB. * TraceAbstraction took 359.71 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: 31.9 MB). Peak memory consumption was 31.9 MB. Max. memory is 11.5 GB. * Witness Printer took 31.29 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: 3.4 MB). Peak memory consumption was 3.4 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 26]: integer overflow possible integer overflow possible We found a FailurePath: [L23] int x; [L24] x = __VERIFIER_nondet_int() [L25] COND TRUE x > 0 VAL [x=1073741826] [L26] -2*x VAL [x=1073741826] - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 20 locations, 4 error locations. UNSAFE Result, 0.3s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 12 SDtfs, 5 SDslu, 9 SDs, 0 SdLazy, 9 SolverSat, 1 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=20occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 17 NumberOfCodeBlocks, 17 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 7 ConstructedInterpolants, 0 QuantifiedInterpolants, 63 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 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...