./Ultimate.py --spec ../../sv-benchmarks/c/NoOverflows.prp --file ../../sv-benchmarks/c/termination-crafted-lit/HarrisLalNoriRajamani-SAS2010-Fig2_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_5af36888-af14-4d7f-9b1c-c23fa1e7cd0b/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_5af36888-af14-4d7f-9b1c-c23fa1e7cd0b/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_5af36888-af14-4d7f-9b1c-c23fa1e7cd0b/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_5af36888-af14-4d7f-9b1c-c23fa1e7cd0b/bin-2019/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/termination-crafted-lit/HarrisLalNoriRajamani-SAS2010-Fig2_false-no-overflow.c -s /tmp/vcloud-vcloud-master/worker/working_dir_5af36888-af14-4d7f-9b1c-c23fa1e7cd0b/bin-2019/uautomizer/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_5af36888-af14-4d7f-9b1c-c23fa1e7cd0b/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 6ff697c57265298ce2261966fa58c440777fc865 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 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 07:52:37,262 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-10 07:52:37,264 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-10 07:52:37,272 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-10 07:52:37,272 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-10 07:52:37,273 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-10 07:52:37,274 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-10 07:52:37,275 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-10 07:52:37,276 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-10 07:52:37,276 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-10 07:52:37,277 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-10 07:52:37,277 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-10 07:52:37,278 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-10 07:52:37,279 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-10 07:52:37,279 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-10 07:52:37,280 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-10 07:52:37,280 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-10 07:52:37,282 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-10 07:52:37,284 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-10 07:52:37,285 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-10 07:52:37,285 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-10 07:52:37,287 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-10 07:52:37,288 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-10 07:52:37,288 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-10 07:52:37,288 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-10 07:52:37,289 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-10 07:52:37,290 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-10 07:52:37,291 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-10 07:52:37,291 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-10 07:52:37,292 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-10 07:52:37,292 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-10 07:52:37,293 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-10 07:52:37,293 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-10 07:52:37,293 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-10 07:52:37,294 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-10 07:52:37,295 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-10 07:52:37,295 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_5af36888-af14-4d7f-9b1c-c23fa1e7cd0b/bin-2019/uautomizer/config/svcomp-Overflow-64bit-Automizer_Default.epf [2018-11-10 07:52:37,305 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-10 07:52:37,305 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-10 07:52:37,306 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-10 07:52:37,306 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-11-10 07:52:37,306 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-10 07:52:37,307 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-10 07:52:37,307 INFO L133 SettingsManager]: * Use SBE=true [2018-11-10 07:52:37,307 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-10 07:52:37,307 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-11-10 07:52:37,307 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-10 07:52:37,307 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-10 07:52:37,308 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-10 07:52:37,308 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-10 07:52:37,308 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-10 07:52:37,308 INFO L133 SettingsManager]: * Check absence of signed integer overflows=true [2018-11-10 07:52:37,308 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-10 07:52:37,308 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-10 07:52:37,308 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-10 07:52:37,308 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-10 07:52:37,309 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-10 07:52:37,309 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-10 07:52:37,309 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-10 07:52:37,309 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-10 07:52:37,309 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-10 07:52:37,309 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-10 07:52:37,310 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-10 07:52:37,310 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-10 07:52:37,312 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-10 07:52:37,312 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_5af36888-af14-4d7f-9b1c-c23fa1e7cd0b/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 -> 6ff697c57265298ce2261966fa58c440777fc865 [2018-11-10 07:52:37,337 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-10 07:52:37,347 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-10 07:52:37,349 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-10 07:52:37,351 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-10 07:52:37,351 INFO L276 PluginConnector]: CDTParser initialized [2018-11-10 07:52:37,351 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_5af36888-af14-4d7f-9b1c-c23fa1e7cd0b/bin-2019/uautomizer/../../sv-benchmarks/c/termination-crafted-lit/HarrisLalNoriRajamani-SAS2010-Fig2_false-no-overflow.c [2018-11-10 07:52:37,385 INFO L218 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_5af36888-af14-4d7f-9b1c-c23fa1e7cd0b/bin-2019/uautomizer/data/9fde1f786/fb5d338e0a8a4a78bf6456bde6a42083/FLAG0e3ea3747 [2018-11-10 07:52:37,789 INFO L298 CDTParser]: Found 1 translation units. [2018-11-10 07:52:37,789 INFO L158 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_5af36888-af14-4d7f-9b1c-c23fa1e7cd0b/sv-benchmarks/c/termination-crafted-lit/HarrisLalNoriRajamani-SAS2010-Fig2_false-no-overflow.c [2018-11-10 07:52:37,793 INFO L346 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_5af36888-af14-4d7f-9b1c-c23fa1e7cd0b/bin-2019/uautomizer/data/9fde1f786/fb5d338e0a8a4a78bf6456bde6a42083/FLAG0e3ea3747 [2018-11-10 07:52:37,802 INFO L354 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_5af36888-af14-4d7f-9b1c-c23fa1e7cd0b/bin-2019/uautomizer/data/9fde1f786/fb5d338e0a8a4a78bf6456bde6a42083 [2018-11-10 07:52:37,804 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-10 07:52:37,805 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-10 07:52:37,805 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-10 07:52:37,805 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-10 07:52:37,808 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-10 07:52:37,808 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 07:52:37" (1/1) ... [2018-11-10 07:52:37,810 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@236dc686 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:52:37, skipping insertion in model container [2018-11-10 07:52:37,810 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 07:52:37" (1/1) ... [2018-11-10 07:52:37,816 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-10 07:52:37,827 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-10 07:52:37,928 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 07:52:37,930 INFO L189 MainTranslator]: Completed pre-run [2018-11-10 07:52:37,941 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 07:52:37,948 INFO L193 MainTranslator]: Completed translation [2018-11-10 07:52:37,949 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:52:37 WrapperNode [2018-11-10 07:52:37,949 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-10 07:52:37,949 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-10 07:52:37,949 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-10 07:52:37,949 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-10 07:52:37,957 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:52:37" (1/1) ... [2018-11-10 07:52:37,957 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:52:37" (1/1) ... [2018-11-10 07:52:37,960 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:52:37" (1/1) ... [2018-11-10 07:52:37,960 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:52:37" (1/1) ... [2018-11-10 07:52:37,962 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:52:37" (1/1) ... [2018-11-10 07:52:37,966 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:52:37" (1/1) ... [2018-11-10 07:52:37,966 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:52:37" (1/1) ... [2018-11-10 07:52:37,967 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-10 07:52:37,967 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-10 07:52:37,967 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-10 07:52:37,967 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-10 07:52:37,968 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:52:37" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_5af36888-af14-4d7f-9b1c-c23fa1e7cd0b/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 07:52:38,035 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-10 07:52:38,035 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-10 07:52:38,035 INFO L138 BoogieDeclarations]: Found implementation of procedure foo [2018-11-10 07:52:38,035 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-10 07:52:38,035 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2018-11-10 07:52:38,036 INFO L130 BoogieDeclarations]: Found specification of procedure foo [2018-11-10 07:52:38,036 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-10 07:52:38,036 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-10 07:52:38,036 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-10 07:52:38,186 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-10 07:52:38,186 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 07:52:38 BoogieIcfgContainer [2018-11-10 07:52:38,186 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-10 07:52:38,187 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-10 07:52:38,187 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-10 07:52:38,189 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-10 07:52:38,189 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.11 07:52:37" (1/3) ... [2018-11-10 07:52:38,190 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@718a2222 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 07:52:38, skipping insertion in model container [2018-11-10 07:52:38,190 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:52:37" (2/3) ... [2018-11-10 07:52:38,190 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@718a2222 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 07:52:38, skipping insertion in model container [2018-11-10 07:52:38,191 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 07:52:38" (3/3) ... [2018-11-10 07:52:38,192 INFO L112 eAbstractionObserver]: Analyzing ICFG HarrisLalNoriRajamani-SAS2010-Fig2_false-no-overflow.c [2018-11-10 07:52:38,197 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-10 07:52:38,202 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 6 error locations. [2018-11-10 07:52:38,210 INFO L257 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2018-11-10 07:52:38,229 INFO L135 ementStrategyFactory]: Using default assertion order modulation [2018-11-10 07:52:38,229 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-10 07:52:38,229 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-10 07:52:38,229 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-10 07:52:38,229 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-10 07:52:38,229 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-10 07:52:38,229 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-10 07:52:38,229 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-10 07:52:38,229 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-10 07:52:38,240 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states. [2018-11-10 07:52:38,243 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2018-11-10 07:52:38,243 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 07:52:38,244 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2018-11-10 07:52:38,245 INFO L424 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-10 07:52:38,248 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 07:52:38,248 INFO L82 PathProgramCache]: Analyzing trace with hash -1533557337, now seen corresponding path program 1 times [2018-11-10 07:52:38,249 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 07:52:38,250 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 07:52:38,277 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 07:52:38,278 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 07:52:38,278 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 07:52:38,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 07:52:38,336 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 07:52:38,337 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 07:52:38,337 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-10 07:52:38,340 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-10 07:52:38,347 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-10 07:52:38,347 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-10 07:52:38,349 INFO L87 Difference]: Start difference. First operand 54 states. Second operand 3 states. [2018-11-10 07:52:38,399 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 07:52:38,399 INFO L93 Difference]: Finished difference Result 59 states and 75 transitions. [2018-11-10 07:52:38,400 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-10 07:52:38,400 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 7 [2018-11-10 07:52:38,401 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 07:52:38,407 INFO L225 Difference]: With dead ends: 59 [2018-11-10 07:52:38,407 INFO L226 Difference]: Without dead ends: 47 [2018-11-10 07:52:38,409 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 07:52:38,419 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2018-11-10 07:52:38,432 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 47. [2018-11-10 07:52:38,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 47 states. [2018-11-10 07:52:38,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 63 transitions. [2018-11-10 07:52:38,434 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 63 transitions. Word has length 7 [2018-11-10 07:52:38,434 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 07:52:38,434 INFO L481 AbstractCegarLoop]: Abstraction has 47 states and 63 transitions. [2018-11-10 07:52:38,435 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-10 07:52:38,435 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 63 transitions. [2018-11-10 07:52:38,435 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-11-10 07:52:38,435 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 07:52:38,435 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 07:52:38,435 INFO L424 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-10 07:52:38,436 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 07:52:38,436 INFO L82 PathProgramCache]: Analyzing trace with hash -295637108, now seen corresponding path program 1 times [2018-11-10 07:52:38,436 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 07:52:38,436 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 07:52:38,437 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 07:52:38,437 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 07:52:38,437 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 07:52:38,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 07:52:38,456 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 07:52:38,456 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 07:52:38,457 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-10 07:52:38,458 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-10 07:52:38,458 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-10 07:52:38,458 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-10 07:52:38,458 INFO L87 Difference]: Start difference. First operand 47 states and 63 transitions. Second operand 3 states. [2018-11-10 07:52:38,504 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 07:52:38,505 INFO L93 Difference]: Finished difference Result 74 states and 99 transitions. [2018-11-10 07:52:38,505 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-10 07:52:38,505 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2018-11-10 07:52:38,505 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 07:52:38,506 INFO L225 Difference]: With dead ends: 74 [2018-11-10 07:52:38,506 INFO L226 Difference]: Without dead ends: 72 [2018-11-10 07:52:38,507 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 07:52:38,507 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states. [2018-11-10 07:52:38,514 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 66. [2018-11-10 07:52:38,514 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 66 states. [2018-11-10 07:52:38,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 91 transitions. [2018-11-10 07:52:38,516 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 91 transitions. Word has length 8 [2018-11-10 07:52:38,516 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 07:52:38,516 INFO L481 AbstractCegarLoop]: Abstraction has 66 states and 91 transitions. [2018-11-10 07:52:38,516 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-10 07:52:38,516 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 91 transitions. [2018-11-10 07:52:38,517 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-11-10 07:52:38,518 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 07:52:38,518 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 07:52:38,518 INFO L424 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-10 07:52:38,518 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 07:52:38,518 INFO L82 PathProgramCache]: Analyzing trace with hash 1626993653, now seen corresponding path program 1 times [2018-11-10 07:52:38,519 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 07:52:38,519 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 07:52:38,519 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 07:52:38,519 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 07:52:38,520 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 07:52:38,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 07:52:38,551 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 07:52:38,552 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 07:52:38,552 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-10 07:52:38,552 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-10 07:52:38,552 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-10 07:52:38,552 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-10 07:52:38,553 INFO L87 Difference]: Start difference. First operand 66 states and 91 transitions. Second operand 3 states. [2018-11-10 07:52:38,612 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 07:52:38,613 INFO L93 Difference]: Finished difference Result 71 states and 97 transitions. [2018-11-10 07:52:38,613 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-10 07:52:38,613 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 19 [2018-11-10 07:52:38,613 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 07:52:38,614 INFO L225 Difference]: With dead ends: 71 [2018-11-10 07:52:38,614 INFO L226 Difference]: Without dead ends: 70 [2018-11-10 07:52:38,615 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 07:52:38,615 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states. [2018-11-10 07:52:38,621 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 69. [2018-11-10 07:52:38,621 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 69 states. [2018-11-10 07:52:38,622 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 94 transitions. [2018-11-10 07:52:38,622 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 94 transitions. Word has length 19 [2018-11-10 07:52:38,622 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 07:52:38,623 INFO L481 AbstractCegarLoop]: Abstraction has 69 states and 94 transitions. [2018-11-10 07:52:38,623 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-10 07:52:38,623 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 94 transitions. [2018-11-10 07:52:38,624 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2018-11-10 07:52:38,624 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 07:52:38,624 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 07:52:38,624 INFO L424 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-10 07:52:38,624 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 07:52:38,625 INFO L82 PathProgramCache]: Analyzing trace with hash 923181581, now seen corresponding path program 1 times [2018-11-10 07:52:38,625 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 07:52:38,625 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 07:52:38,626 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 07:52:38,626 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 07:52:38,626 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 07:52:38,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 07:52:38,658 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 07:52:38,658 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 07:52:38,658 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-10 07:52:38,659 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-10 07:52:38,659 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-10 07:52:38,659 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-10 07:52:38,659 INFO L87 Difference]: Start difference. First operand 69 states and 94 transitions. Second operand 4 states. [2018-11-10 07:52:38,706 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 07:52:38,706 INFO L93 Difference]: Finished difference Result 81 states and 106 transitions. [2018-11-10 07:52:38,707 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-10 07:52:38,707 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 20 [2018-11-10 07:52:38,707 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 07:52:38,707 INFO L225 Difference]: With dead ends: 81 [2018-11-10 07:52:38,708 INFO L226 Difference]: Without dead ends: 80 [2018-11-10 07:52:38,708 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-10 07:52:38,708 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2018-11-10 07:52:38,713 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 66. [2018-11-10 07:52:38,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 66 states. [2018-11-10 07:52:38,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 91 transitions. [2018-11-10 07:52:38,714 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 91 transitions. Word has length 20 [2018-11-10 07:52:38,714 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 07:52:38,715 INFO L481 AbstractCegarLoop]: Abstraction has 66 states and 91 transitions. [2018-11-10 07:52:38,715 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-10 07:52:38,715 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 91 transitions. [2018-11-10 07:52:38,715 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2018-11-10 07:52:38,715 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 07:52:38,716 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 07:52:38,716 INFO L424 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-10 07:52:38,716 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 07:52:38,716 INFO L82 PathProgramCache]: Analyzing trace with hash -1102804163, now seen corresponding path program 1 times [2018-11-10 07:52:38,716 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 07:52:38,716 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 07:52:38,717 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 07:52:38,717 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 07:52:38,717 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 07:52:38,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 07:52:38,741 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 07:52:38,741 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 07:52:38,741 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-10 07:52:38,742 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-10 07:52:38,742 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-10 07:52:38,742 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-11-10 07:52:38,742 INFO L87 Difference]: Start difference. First operand 66 states and 91 transitions. Second operand 4 states. [2018-11-10 07:52:38,791 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 07:52:38,791 INFO L93 Difference]: Finished difference Result 66 states and 91 transitions. [2018-11-10 07:52:38,791 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-10 07:52:38,791 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 20 [2018-11-10 07:52:38,792 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 07:52:38,792 INFO L225 Difference]: With dead ends: 66 [2018-11-10 07:52:38,792 INFO L226 Difference]: Without dead ends: 65 [2018-11-10 07:52:38,792 INFO L605 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 [2018-11-10 07:52:38,793 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states. [2018-11-10 07:52:38,797 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 65. [2018-11-10 07:52:38,797 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 65 states. [2018-11-10 07:52:38,798 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 90 transitions. [2018-11-10 07:52:38,798 INFO L78 Accepts]: Start accepts. Automaton has 65 states and 90 transitions. Word has length 20 [2018-11-10 07:52:38,798 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 07:52:38,798 INFO L481 AbstractCegarLoop]: Abstraction has 65 states and 90 transitions. [2018-11-10 07:52:38,799 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-10 07:52:38,799 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 90 transitions. [2018-11-10 07:52:38,800 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-11-10 07:52:38,800 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 07:52:38,800 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 07:52:38,801 INFO L424 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-10 07:52:38,801 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 07:52:38,801 INFO L82 PathProgramCache]: Analyzing trace with hash -1445955111, now seen corresponding path program 1 times [2018-11-10 07:52:38,801 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 07:52:38,801 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 07:52:38,802 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 07:52:38,802 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 07:52:38,802 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 07:52:38,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 07:52:38,830 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 07:52:38,831 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 07:52:38,831 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-10 07:52:38,831 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-10 07:52:38,831 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-10 07:52:38,831 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-10 07:52:38,831 INFO L87 Difference]: Start difference. First operand 65 states and 90 transitions. Second operand 4 states. [2018-11-10 07:52:38,855 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 07:52:38,855 INFO L93 Difference]: Finished difference Result 72 states and 97 transitions. [2018-11-10 07:52:38,855 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-10 07:52:38,856 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 21 [2018-11-10 07:52:38,856 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 07:52:38,856 INFO L225 Difference]: With dead ends: 72 [2018-11-10 07:52:38,856 INFO L226 Difference]: Without dead ends: 71 [2018-11-10 07:52:38,857 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-10 07:52:38,857 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2018-11-10 07:52:38,862 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 67. [2018-11-10 07:52:38,862 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 67 states. [2018-11-10 07:52:38,863 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 92 transitions. [2018-11-10 07:52:38,863 INFO L78 Accepts]: Start accepts. Automaton has 67 states and 92 transitions. Word has length 21 [2018-11-10 07:52:38,863 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 07:52:38,863 INFO L481 AbstractCegarLoop]: Abstraction has 67 states and 92 transitions. [2018-11-10 07:52:38,863 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-10 07:52:38,863 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 92 transitions. [2018-11-10 07:52:38,864 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-11-10 07:52:38,864 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 07:52:38,864 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 07:52:38,864 INFO L424 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-10 07:52:38,864 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 07:52:38,865 INFO L82 PathProgramCache]: Analyzing trace with hash 1827018525, now seen corresponding path program 1 times [2018-11-10 07:52:38,865 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 07:52:38,865 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 07:52:38,865 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 07:52:38,866 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 07:52:38,866 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 07:52:38,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 07:52:38,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 07:52:38,891 INFO L442 BasicCegarLoop]: Counterexample might be feasible [2018-11-10 07:52:38,910 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.11 07:52:38 BoogieIcfgContainer [2018-11-10 07:52:38,910 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-10 07:52:38,911 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-10 07:52:38,911 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-10 07:52:38,911 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-10 07:52:38,911 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 07:52:38" (3/4) ... [2018-11-10 07:52:38,913 INFO L138 WitnessPrinter]: Generating witness for reachability counterexample [2018-11-10 07:52:38,937 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_5af36888-af14-4d7f-9b1c-c23fa1e7cd0b/bin-2019/uautomizer/witness.graphml [2018-11-10 07:52:38,937 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-10 07:52:38,938 INFO L168 Benchmark]: Toolchain (without parser) took 1133.67 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 161.5 MB). Free memory was 960.2 MB in the beginning and 1.1 GB in the end (delta: -103.5 MB). Peak memory consumption was 58.0 MB. Max. memory is 11.5 GB. [2018-11-10 07:52:38,939 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 985.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 07:52:38,939 INFO L168 Benchmark]: CACSL2BoogieTranslator took 143.83 ms. Allocated memory is still 1.0 GB. Free memory was 960.2 MB in the beginning and 949.5 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-10 07:52:38,939 INFO L168 Benchmark]: Boogie Preprocessor took 17.90 ms. Allocated memory is still 1.0 GB. Free memory was 949.5 MB in the beginning and 946.8 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-10 07:52:38,939 INFO L168 Benchmark]: RCFGBuilder took 219.02 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 161.5 MB). Free memory was 946.8 MB in the beginning and 1.1 GB in the end (delta: -199.7 MB). Peak memory consumption was 20.1 MB. Max. memory is 11.5 GB. [2018-11-10 07:52:38,940 INFO L168 Benchmark]: TraceAbstraction took 723.71 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: 82.7 MB). Peak memory consumption was 82.7 MB. Max. memory is 11.5 GB. [2018-11-10 07:52:38,940 INFO L168 Benchmark]: Witness Printer took 26.54 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 07:52:38,942 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 985.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 143.83 ms. Allocated memory is still 1.0 GB. Free memory was 960.2 MB in the beginning and 949.5 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 17.90 ms. Allocated memory is still 1.0 GB. Free memory was 949.5 MB in the beginning and 946.8 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 219.02 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 161.5 MB). Free memory was 946.8 MB in the beginning and 1.1 GB in the end (delta: -199.7 MB). Peak memory consumption was 20.1 MB. Max. memory is 11.5 GB. * TraceAbstraction took 723.71 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: 82.7 MB). Peak memory consumption was 82.7 MB. Max. memory is 11.5 GB. * Witness Printer took 26.54 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: 81]: integer overflow possible integer overflow possible We found a FailurePath: [L53] int d = 1; [L54] int x = __VERIFIER_nondet_int(); [L56] COND TRUE __VERIFIER_nondet_int() [L57] EXPR d - 1 [L57] d = d - 1 VAL [d=0, x=2147483647] [L61] COND FALSE !(__VERIFIER_nondet_int()) [L64] COND FALSE !(__VERIFIER_nondet_int()) [L67] COND FALSE !(__VERIFIER_nondet_int()) [L70] COND FALSE !(__VERIFIER_nondet_int()) [L76] COND TRUE __VERIFIER_nondet_int() [L77] EXPR d - 1 [L77] d = d - 1 VAL [d=-1, x=2147483647] [L80] COND TRUE x > 0 VAL [d=-1, x=2147483647] [L81] x - d VAL [d=-1, x=2147483647] - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 54 locations, 6 error locations. UNSAFE Result, 0.6s OverallTime, 7 OverallIterations, 1 TraceHistogramMax, 0.3s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 347 SDtfs, 171 SDslu, 342 SDs, 0 SdLazy, 106 SolverSat, 13 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 16 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=69occurred in iteration=3, 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, 6 MinimizatonAttempts, 25 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 118 NumberOfCodeBlocks, 118 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 89 ConstructedInterpolants, 0 QuantifiedInterpolants, 5025 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 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...