./Ultimate.py --spec ../../sv-benchmarks/c/NoOverflows.prp --file ../../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-Fig2a_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_8a078a6c-62eb-4d30-abc8-de1a37464b81/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_8a078a6c-62eb-4d30-abc8-de1a37464b81/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_8a078a6c-62eb-4d30-abc8-de1a37464b81/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_8a078a6c-62eb-4d30-abc8-de1a37464b81/bin-2019/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-Fig2a_false-no-overflow.c -s /tmp/vcloud-vcloud-master/worker/working_dir_8a078a6c-62eb-4d30-abc8-de1a37464b81/bin-2019/uautomizer/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_8a078a6c-62eb-4d30-abc8-de1a37464b81/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 7b8d2b598ac3326e286016998f443939dfd4be1d ..................................................................................................................................................................................................................................................................................................... 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 08:00:56,061 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-10 08:00:56,062 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-10 08:00:56,068 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-10 08:00:56,068 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-10 08:00:56,069 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-10 08:00:56,070 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-10 08:00:56,071 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-10 08:00:56,072 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-10 08:00:56,073 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-10 08:00:56,073 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-10 08:00:56,073 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-10 08:00:56,074 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-10 08:00:56,075 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-10 08:00:56,076 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-10 08:00:56,076 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-10 08:00:56,077 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-10 08:00:56,078 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-10 08:00:56,079 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-10 08:00:56,080 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-10 08:00:56,081 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-10 08:00:56,082 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-10 08:00:56,083 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-10 08:00:56,084 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-10 08:00:56,084 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-10 08:00:56,085 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-10 08:00:56,085 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-10 08:00:56,086 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-10 08:00:56,086 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-10 08:00:56,087 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-10 08:00:56,087 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-10 08:00:56,088 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-10 08:00:56,088 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-10 08:00:56,088 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-10 08:00:56,089 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-10 08:00:56,089 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-10 08:00:56,089 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_8a078a6c-62eb-4d30-abc8-de1a37464b81/bin-2019/uautomizer/config/svcomp-Overflow-64bit-Automizer_Default.epf [2018-11-10 08:00:56,100 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-10 08:00:56,100 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-10 08:00:56,100 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-10 08:00:56,101 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-11-10 08:00:56,101 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-10 08:00:56,101 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-10 08:00:56,101 INFO L133 SettingsManager]: * Use SBE=true [2018-11-10 08:00:56,102 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-10 08:00:56,102 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-11-10 08:00:56,102 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-10 08:00:56,102 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-10 08:00:56,102 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-10 08:00:56,102 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-10 08:00:56,102 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-10 08:00:56,102 INFO L133 SettingsManager]: * Check absence of signed integer overflows=true [2018-11-10 08:00:56,102 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-10 08:00:56,103 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-10 08:00:56,103 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-10 08:00:56,103 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-10 08:00:56,103 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-10 08:00:56,103 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-10 08:00:56,103 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-10 08:00:56,103 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-10 08:00:56,103 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-10 08:00:56,104 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-10 08:00:56,104 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-10 08:00:56,104 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-10 08:00:56,104 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-10 08:00:56,104 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_8a078a6c-62eb-4d30-abc8-de1a37464b81/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 -> 7b8d2b598ac3326e286016998f443939dfd4be1d [2018-11-10 08:00:56,128 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-10 08:00:56,137 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-10 08:00:56,140 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-10 08:00:56,141 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-10 08:00:56,141 INFO L276 PluginConnector]: CDTParser initialized [2018-11-10 08:00:56,142 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_8a078a6c-62eb-4d30-abc8-de1a37464b81/bin-2019/uautomizer/../../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-Fig2a_false-no-overflow.c [2018-11-10 08:00:56,188 INFO L218 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_8a078a6c-62eb-4d30-abc8-de1a37464b81/bin-2019/uautomizer/data/0991aad7f/c5f82a5f47b44d5f88f5614d99b356c9/FLAG28faf6943 [2018-11-10 08:00:56,486 INFO L298 CDTParser]: Found 1 translation units. [2018-11-10 08:00:56,487 INFO L158 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_8a078a6c-62eb-4d30-abc8-de1a37464b81/sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-Fig2a_false-no-overflow.c [2018-11-10 08:00:56,491 INFO L346 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_8a078a6c-62eb-4d30-abc8-de1a37464b81/bin-2019/uautomizer/data/0991aad7f/c5f82a5f47b44d5f88f5614d99b356c9/FLAG28faf6943 [2018-11-10 08:00:56,502 INFO L354 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_8a078a6c-62eb-4d30-abc8-de1a37464b81/bin-2019/uautomizer/data/0991aad7f/c5f82a5f47b44d5f88f5614d99b356c9 [2018-11-10 08:00:56,504 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-10 08:00:56,505 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-10 08:00:56,506 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-10 08:00:56,506 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-10 08:00:56,508 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-10 08:00:56,509 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 08:00:56" (1/1) ... [2018-11-10 08:00:56,511 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@12305cee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 08:00:56, skipping insertion in model container [2018-11-10 08:00:56,511 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 08:00:56" (1/1) ... [2018-11-10 08:00:56,517 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-10 08:00:56,528 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-10 08:00:56,624 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 08:00:56,627 INFO L189 MainTranslator]: Completed pre-run [2018-11-10 08:00:56,637 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 08:00:56,645 INFO L193 MainTranslator]: Completed translation [2018-11-10 08:00:56,645 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 08:00:56 WrapperNode [2018-11-10 08:00:56,645 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-10 08:00:56,646 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-10 08:00:56,646 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-10 08:00:56,646 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-10 08:00:56,654 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 08:00:56" (1/1) ... [2018-11-10 08:00:56,654 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 08:00:56" (1/1) ... [2018-11-10 08:00:56,657 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 08:00:56" (1/1) ... [2018-11-10 08:00:56,658 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 08:00:56" (1/1) ... [2018-11-10 08:00:56,660 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 08:00:56" (1/1) ... [2018-11-10 08:00:56,663 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 08:00:56" (1/1) ... [2018-11-10 08:00:56,664 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 08:00:56" (1/1) ... [2018-11-10 08:00:56,665 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-10 08:00:56,665 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-10 08:00:56,665 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-10 08:00:56,666 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-10 08:00:56,666 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 08:00:56" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_8a078a6c-62eb-4d30-abc8-de1a37464b81/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 08:00:56,736 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-10 08:00:56,736 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-10 08:00:56,736 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-10 08:00:56,736 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2018-11-10 08:00:56,737 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-10 08:00:56,737 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-10 08:00:56,737 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-10 08:00:56,851 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-10 08:00:56,851 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 08:00:56 BoogieIcfgContainer [2018-11-10 08:00:56,851 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-10 08:00:56,852 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-10 08:00:56,852 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-10 08:00:56,854 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-10 08:00:56,855 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.11 08:00:56" (1/3) ... [2018-11-10 08:00:56,855 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@42454303 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 08:00:56, skipping insertion in model container [2018-11-10 08:00:56,855 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 08:00:56" (2/3) ... [2018-11-10 08:00:56,856 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@42454303 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 08:00:56, skipping insertion in model container [2018-11-10 08:00:56,856 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 08:00:56" (3/3) ... [2018-11-10 08:00:56,857 INFO L112 eAbstractionObserver]: Analyzing ICFG AliasDarteFeautrierGonnord-SAS2010-Fig2a_false-no-overflow.c [2018-11-10 08:00:56,866 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-10 08:00:56,872 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 10 error locations. [2018-11-10 08:00:56,882 INFO L257 AbstractCegarLoop]: Starting to check reachability of 10 error locations. [2018-11-10 08:00:56,899 INFO L135 ementStrategyFactory]: Using default assertion order modulation [2018-11-10 08:00:56,900 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-10 08:00:56,900 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-10 08:00:56,900 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-10 08:00:56,900 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-10 08:00:56,900 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-10 08:00:56,900 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-10 08:00:56,900 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-10 08:00:56,900 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-10 08:00:56,912 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states. [2018-11-10 08:00:56,917 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-11-10 08:00:56,917 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 08:00:56,918 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 08:00:56,920 INFO L424 AbstractCegarLoop]: === Iteration 1 === [mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-10 08:00:56,924 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 08:00:56,924 INFO L82 PathProgramCache]: Analyzing trace with hash 1485714347, now seen corresponding path program 1 times [2018-11-10 08:00:56,926 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 08:00:56,927 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 08:00:56,965 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 08:00:56,966 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 08:00:56,966 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 08:00:56,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 08:00:57,021 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 08:00:57,023 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 08:00:57,023 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-10 08:00:57,025 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-10 08:00:57,033 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-10 08:00:57,033 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-10 08:00:57,035 INFO L87 Difference]: Start difference. First operand 36 states. Second operand 3 states. [2018-11-10 08:00:57,093 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 08:00:57,093 INFO L93 Difference]: Finished difference Result 65 states and 75 transitions. [2018-11-10 08:00:57,094 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-10 08:00:57,094 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2018-11-10 08:00:57,095 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 08:00:57,100 INFO L225 Difference]: With dead ends: 65 [2018-11-10 08:00:57,100 INFO L226 Difference]: Without dead ends: 29 [2018-11-10 08:00:57,102 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 08:00:57,112 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2018-11-10 08:00:57,122 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2018-11-10 08:00:57,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2018-11-10 08:00:57,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 31 transitions. [2018-11-10 08:00:57,124 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 31 transitions. Word has length 8 [2018-11-10 08:00:57,125 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 08:00:57,125 INFO L481 AbstractCegarLoop]: Abstraction has 29 states and 31 transitions. [2018-11-10 08:00:57,125 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-10 08:00:57,125 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 31 transitions. [2018-11-10 08:00:57,125 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-11-10 08:00:57,125 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 08:00:57,125 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 08:00:57,126 INFO L424 AbstractCegarLoop]: === Iteration 2 === [mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-10 08:00:57,126 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 08:00:57,126 INFO L82 PathProgramCache]: Analyzing trace with hash -1187495451, now seen corresponding path program 1 times [2018-11-10 08:00:57,126 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 08:00:57,127 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 08:00:57,128 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 08:00:57,128 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 08:00:57,128 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 08:00:57,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 08:00:57,153 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 08:00:57,154 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 08:00:57,154 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-10 08:00:57,155 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-10 08:00:57,155 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-10 08:00:57,155 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-10 08:00:57,155 INFO L87 Difference]: Start difference. First operand 29 states and 31 transitions. Second operand 3 states. [2018-11-10 08:00:57,184 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 08:00:57,184 INFO L93 Difference]: Finished difference Result 29 states and 31 transitions. [2018-11-10 08:00:57,185 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-10 08:00:57,185 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2018-11-10 08:00:57,185 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 08:00:57,186 INFO L225 Difference]: With dead ends: 29 [2018-11-10 08:00:57,186 INFO L226 Difference]: Without dead ends: 28 [2018-11-10 08:00:57,187 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 08:00:57,187 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2018-11-10 08:00:57,190 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2018-11-10 08:00:57,190 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2018-11-10 08:00:57,191 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 30 transitions. [2018-11-10 08:00:57,192 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 30 transitions. Word has length 9 [2018-11-10 08:00:57,192 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 08:00:57,192 INFO L481 AbstractCegarLoop]: Abstraction has 28 states and 30 transitions. [2018-11-10 08:00:57,192 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-10 08:00:57,192 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 30 transitions. [2018-11-10 08:00:57,192 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-11-10 08:00:57,192 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 08:00:57,193 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 08:00:57,193 INFO L424 AbstractCegarLoop]: === Iteration 3 === [mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-10 08:00:57,193 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 08:00:57,193 INFO L82 PathProgramCache]: Analyzing trace with hash 1842346733, now seen corresponding path program 1 times [2018-11-10 08:00:57,194 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 08:00:57,194 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 08:00:57,195 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 08:00:57,195 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 08:00:57,195 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 08:00:57,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 08:00:57,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 08:00:57,221 INFO L442 BasicCegarLoop]: Counterexample might be feasible [2018-11-10 08:00:57,234 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.11 08:00:57 BoogieIcfgContainer [2018-11-10 08:00:57,234 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-10 08:00:57,235 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-10 08:00:57,235 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-10 08:00:57,235 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-10 08:00:57,235 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 08:00:56" (3/4) ... [2018-11-10 08:00:57,237 INFO L138 WitnessPrinter]: Generating witness for reachability counterexample [2018-11-10 08:00:57,259 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_8a078a6c-62eb-4d30-abc8-de1a37464b81/bin-2019/uautomizer/witness.graphml [2018-11-10 08:00:57,259 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-10 08:00:57,260 INFO L168 Benchmark]: Toolchain (without parser) took 754.95 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 131.6 MB). Free memory was 960.3 MB in the beginning and 1.1 GB in the end (delta: -119.3 MB). Peak memory consumption was 12.3 MB. Max. memory is 11.5 GB. [2018-11-10 08:00:57,260 INFO L168 Benchmark]: CDTParser took 0.15 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 08:00:57,261 INFO L168 Benchmark]: CACSL2BoogieTranslator took 140.00 ms. Allocated memory is still 1.0 GB. Free memory was 960.3 MB in the beginning and 949.5 MB in the end (delta: 10.9 MB). Peak memory consumption was 10.9 MB. Max. memory is 11.5 GB. [2018-11-10 08:00:57,261 INFO L168 Benchmark]: Boogie Preprocessor took 19.25 ms. Allocated memory is still 1.0 GB. Free memory was 949.5 MB in the beginning and 948.4 MB in the end (delta: 1.1 MB). Peak memory consumption was 1.1 MB. Max. memory is 11.5 GB. [2018-11-10 08:00:57,262 INFO L168 Benchmark]: RCFGBuilder took 185.86 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 131.6 MB). Free memory was 948.4 MB in the beginning and 1.1 GB in the end (delta: -171.0 MB). Peak memory consumption was 22.5 MB. Max. memory is 11.5 GB. [2018-11-10 08:00:57,262 INFO L168 Benchmark]: TraceAbstraction took 382.71 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: 39.8 MB). Peak memory consumption was 39.8 MB. Max. memory is 11.5 GB. [2018-11-10 08:00:57,262 INFO L168 Benchmark]: Witness Printer took 24.22 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. [2018-11-10 08:00:57,264 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 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 140.00 ms. Allocated memory is still 1.0 GB. Free memory was 960.3 MB in the beginning and 949.5 MB in the end (delta: 10.9 MB). Peak memory consumption was 10.9 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 19.25 ms. Allocated memory is still 1.0 GB. Free memory was 949.5 MB in the beginning and 948.4 MB in the end (delta: 1.1 MB). Peak memory consumption was 1.1 MB. Max. memory is 11.5 GB. * RCFGBuilder took 185.86 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 131.6 MB). Free memory was 948.4 MB in the beginning and 1.1 GB in the end (delta: -171.0 MB). Peak memory consumption was 22.5 MB. Max. memory is 11.5 GB. * TraceAbstraction took 382.71 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: 39.8 MB). Peak memory consumption was 39.8 MB. Max. memory is 11.5 GB. * Witness Printer took 24.22 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: 19]: integer overflow possible integer overflow possible We found a FailurePath: [L14] int x, y; [L15] x = __VERIFIER_nondet_int() [L16] y = __VERIFIER_nondet_int() [L17] COND TRUE x >= 2 VAL [x=3, y=2147483646] [L18] EXPR x - 1 [L18] x = x - 1 VAL [x=2, y=2147483646] [L19] y + x VAL [x=2, y=2147483646] - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 36 locations, 10 error locations. UNSAFE Result, 0.3s OverallTime, 3 OverallIterations, 1 TraceHistogramMax, 0.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 47 SDtfs, 25 SDslu, 20 SDs, 0 SdLazy, 33 SolverSat, 3 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=36occurred 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, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 27 NumberOfCodeBlocks, 27 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 15 ConstructedInterpolants, 0 QuantifiedInterpolants, 187 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 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...