./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-crafted-lit/HeizmannHoenickeLeikePodelski-ATVA2013-Fig7_false-no-overflow.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 0cd3be1d Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_24afeb92-69ac-4a3a-b1e2-a3836d64c81a/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_24afeb92-69ac-4a3a-b1e2-a3836d64c81a/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_24afeb92-69ac-4a3a-b1e2-a3836d64c81a/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_24afeb92-69ac-4a3a-b1e2-a3836d64c81a/bin-2019/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/termination-crafted-lit/HeizmannHoenickeLeikePodelski-ATVA2013-Fig7_false-no-overflow.c -s /tmp/vcloud-vcloud-master/worker/working_dir_24afeb92-69ac-4a3a-b1e2-a3836d64c81a/bin-2019/uautomizer/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_24afeb92-69ac-4a3a-b1e2-a3836d64c81a/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 3428809e66c8ffa9373e37ec3d02a46642c7f8bc ....................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 0.1.23-0cd3be1 [2018-11-28 12:06:09,460 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-28 12:06:09,462 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-28 12:06:09,470 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-28 12:06:09,470 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-28 12:06:09,471 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-28 12:06:09,472 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-28 12:06:09,474 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-28 12:06:09,475 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-28 12:06:09,476 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-28 12:06:09,477 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-28 12:06:09,477 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-28 12:06:09,478 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-28 12:06:09,479 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-28 12:06:09,480 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-28 12:06:09,481 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-28 12:06:09,482 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-28 12:06:09,483 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-28 12:06:09,486 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-28 12:06:09,487 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-28 12:06:09,488 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-28 12:06:09,489 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-28 12:06:09,491 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-28 12:06:09,492 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-28 12:06:09,492 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-28 12:06:09,493 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-28 12:06:09,494 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-28 12:06:09,494 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-28 12:06:09,495 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-28 12:06:09,496 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-28 12:06:09,496 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-28 12:06:09,497 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-28 12:06:09,498 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-28 12:06:09,498 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-28 12:06:09,499 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-28 12:06:09,499 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-28 12:06:09,499 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_24afeb92-69ac-4a3a-b1e2-a3836d64c81a/bin-2019/uautomizer/config/svcomp-Overflow-64bit-Automizer_Default.epf [2018-11-28 12:06:09,508 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-28 12:06:09,509 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-28 12:06:09,510 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-28 12:06:09,510 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-28 12:06:09,510 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-28 12:06:09,511 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-28 12:06:09,511 INFO L133 SettingsManager]: * Use SBE=true [2018-11-28 12:06:09,511 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-28 12:06:09,511 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-11-28 12:06:09,511 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-28 12:06:09,511 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-28 12:06:09,512 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-28 12:06:09,512 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-28 12:06:09,512 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-28 12:06:09,512 INFO L133 SettingsManager]: * Check absence of signed integer overflows=true [2018-11-28 12:06:09,512 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-28 12:06:09,512 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-28 12:06:09,514 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-28 12:06:09,515 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-28 12:06:09,515 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-28 12:06:09,515 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-28 12:06:09,515 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-28 12:06:09,515 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-28 12:06:09,516 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-28 12:06:09,516 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-28 12:06:09,516 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-28 12:06:09,516 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-28 12:06:09,516 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-28 12:06:09,516 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-28 12:06:09,517 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_24afeb92-69ac-4a3a-b1e2-a3836d64c81a/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 -> 3428809e66c8ffa9373e37ec3d02a46642c7f8bc [2018-11-28 12:06:09,544 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-28 12:06:09,555 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-28 12:06:09,558 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-28 12:06:09,559 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-28 12:06:09,560 INFO L276 PluginConnector]: CDTParser initialized [2018-11-28 12:06:09,561 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_24afeb92-69ac-4a3a-b1e2-a3836d64c81a/bin-2019/uautomizer/../../sv-benchmarks/c/termination-crafted-lit/HeizmannHoenickeLeikePodelski-ATVA2013-Fig7_false-no-overflow.c [2018-11-28 12:06:09,605 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_24afeb92-69ac-4a3a-b1e2-a3836d64c81a/bin-2019/uautomizer/data/56bd85d0f/09fc5390783b431fa36f2b0c66aafcb7/FLAG91257080d [2018-11-28 12:06:09,959 INFO L307 CDTParser]: Found 1 translation units. [2018-11-28 12:06:09,960 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_24afeb92-69ac-4a3a-b1e2-a3836d64c81a/sv-benchmarks/c/termination-crafted-lit/HeizmannHoenickeLeikePodelski-ATVA2013-Fig7_false-no-overflow.c [2018-11-28 12:06:09,964 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_24afeb92-69ac-4a3a-b1e2-a3836d64c81a/bin-2019/uautomizer/data/56bd85d0f/09fc5390783b431fa36f2b0c66aafcb7/FLAG91257080d [2018-11-28 12:06:10,382 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_24afeb92-69ac-4a3a-b1e2-a3836d64c81a/bin-2019/uautomizer/data/56bd85d0f/09fc5390783b431fa36f2b0c66aafcb7 [2018-11-28 12:06:10,384 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-28 12:06:10,386 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-28 12:06:10,386 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-28 12:06:10,386 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-28 12:06:10,390 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-28 12:06:10,391 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 12:06:10" (1/1) ... [2018-11-28 12:06:10,393 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3451f02d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:06:10, skipping insertion in model container [2018-11-28 12:06:10,394 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 12:06:10" (1/1) ... [2018-11-28 12:06:10,399 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-28 12:06:10,412 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-28 12:06:10,525 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 12:06:10,528 INFO L191 MainTranslator]: Completed pre-run [2018-11-28 12:06:10,543 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 12:06:10,558 INFO L195 MainTranslator]: Completed translation [2018-11-28 12:06:10,558 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:06:10 WrapperNode [2018-11-28 12:06:10,558 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-28 12:06:10,559 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-28 12:06:10,559 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-28 12:06:10,559 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-28 12:06:10,565 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:06:10" (1/1) ... [2018-11-28 12:06:10,573 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:06:10" (1/1) ... [2018-11-28 12:06:10,579 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-28 12:06:10,580 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-28 12:06:10,580 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-28 12:06:10,580 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-28 12:06:10,587 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:06:10" (1/1) ... [2018-11-28 12:06:10,587 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:06:10" (1/1) ... [2018-11-28 12:06:10,588 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:06:10" (1/1) ... [2018-11-28 12:06:10,588 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:06:10" (1/1) ... [2018-11-28 12:06:10,594 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:06:10" (1/1) ... [2018-11-28 12:06:10,644 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:06:10" (1/1) ... [2018-11-28 12:06:10,645 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:06:10" (1/1) ... [2018-11-28 12:06:10,646 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-28 12:06:10,647 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-28 12:06:10,647 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-28 12:06:10,647 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-28 12:06:10,648 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:06:10" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_24afeb92-69ac-4a3a-b1e2-a3836d64c81a/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 [2018-11-28 12:06:10,691 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-11-28 12:06:10,691 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-28 12:06:10,691 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-28 12:06:10,691 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-28 12:06:10,691 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-28 12:06:10,692 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-28 12:06:10,692 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-11-28 12:06:10,692 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-28 12:06:10,692 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-28 12:06:10,692 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-28 12:06:10,878 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-28 12:06:10,879 INFO L280 CfgBuilder]: Removed 2 assue(true) statements. [2018-11-28 12:06:10,879 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 12:06:10 BoogieIcfgContainer [2018-11-28 12:06:10,879 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-28 12:06:10,880 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-28 12:06:10,880 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-28 12:06:10,882 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-28 12:06:10,883 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 12:06:10" (1/3) ... [2018-11-28 12:06:10,883 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@24ebf3c4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 12:06:10, skipping insertion in model container [2018-11-28 12:06:10,883 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:06:10" (2/3) ... [2018-11-28 12:06:10,884 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@24ebf3c4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 12:06:10, skipping insertion in model container [2018-11-28 12:06:10,884 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 12:06:10" (3/3) ... [2018-11-28 12:06:10,886 INFO L112 eAbstractionObserver]: Analyzing ICFG HeizmannHoenickeLeikePodelski-ATVA2013-Fig7_false-no-overflow.c [2018-11-28 12:06:10,897 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-28 12:06:10,904 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 6 error locations. [2018-11-28 12:06:10,923 INFO L257 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2018-11-28 12:06:10,957 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-28 12:06:10,958 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-28 12:06:10,958 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-28 12:06:10,958 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-28 12:06:10,958 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-28 12:06:10,959 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-28 12:06:10,959 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-28 12:06:10,959 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-28 12:06:10,959 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-28 12:06:10,975 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states. [2018-11-28 12:06:10,980 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-11-28 12:06:10,980 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 12:06:10,981 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 12:06:10,983 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-28 12:06:10,989 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 12:06:10,989 INFO L82 PathProgramCache]: Analyzing trace with hash 1819880950, now seen corresponding path program 1 times [2018-11-28 12:06:10,990 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 12:06:10,991 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 12:06:11,028 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:06:11,028 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 12:06:11,028 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:06:11,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 12:06:11,159 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 12:06:11,161 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 12:06:11,161 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-28 12:06:11,164 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-28 12:06:11,174 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-28 12:06:11,175 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-11-28 12:06:11,177 INFO L87 Difference]: Start difference. First operand 29 states. Second operand 4 states. [2018-11-28 12:06:11,257 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 12:06:11,257 INFO L93 Difference]: Finished difference Result 65 states and 77 transitions. [2018-11-28 12:06:11,258 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-28 12:06:11,259 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 10 [2018-11-28 12:06:11,259 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 12:06:11,267 INFO L225 Difference]: With dead ends: 65 [2018-11-28 12:06:11,267 INFO L226 Difference]: Without dead ends: 39 [2018-11-28 12:06:11,270 INFO L631 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 [2018-11-28 12:06:11,284 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2018-11-28 12:06:11,297 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 28. [2018-11-28 12:06:11,298 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2018-11-28 12:06:11,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 30 transitions. [2018-11-28 12:06:11,301 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 30 transitions. Word has length 10 [2018-11-28 12:06:11,301 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 12:06:11,301 INFO L480 AbstractCegarLoop]: Abstraction has 28 states and 30 transitions. [2018-11-28 12:06:11,301 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-28 12:06:11,301 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 30 transitions. [2018-11-28 12:06:11,302 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2018-11-28 12:06:11,302 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 12:06:11,302 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 12:06:11,303 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-28 12:06:11,303 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 12:06:11,303 INFO L82 PathProgramCache]: Analyzing trace with hash 852311453, now seen corresponding path program 1 times [2018-11-28 12:06:11,303 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 12:06:11,303 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 12:06:11,304 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:06:11,305 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 12:06:11,305 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:06:11,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 12:06:11,350 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 12:06:11,350 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 12:06:11,350 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-28 12:06:11,351 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-28 12:06:11,351 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-28 12:06:11,352 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-28 12:06:11,352 INFO L87 Difference]: Start difference. First operand 28 states and 30 transitions. Second operand 3 states. [2018-11-28 12:06:11,388 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 12:06:11,388 INFO L93 Difference]: Finished difference Result 39 states and 41 transitions. [2018-11-28 12:06:11,389 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-28 12:06:11,389 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 12 [2018-11-28 12:06:11,389 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 12:06:11,390 INFO L225 Difference]: With dead ends: 39 [2018-11-28 12:06:11,390 INFO L226 Difference]: Without dead ends: 28 [2018-11-28 12:06:11,391 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-28 12:06:11,391 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2018-11-28 12:06:11,393 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2018-11-28 12:06:11,393 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2018-11-28 12:06:11,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 29 transitions. [2018-11-28 12:06:11,394 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 29 transitions. Word has length 12 [2018-11-28 12:06:11,394 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 12:06:11,394 INFO L480 AbstractCegarLoop]: Abstraction has 28 states and 29 transitions. [2018-11-28 12:06:11,394 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-28 12:06:11,395 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 29 transitions. [2018-11-28 12:06:11,395 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-11-28 12:06:11,395 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 12:06:11,395 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 12:06:11,396 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-28 12:06:11,396 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 12:06:11,396 INFO L82 PathProgramCache]: Analyzing trace with hash 264114482, now seen corresponding path program 1 times [2018-11-28 12:06:11,396 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 12:06:11,396 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 12:06:11,397 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:06:11,397 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 12:06:11,397 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:06:11,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 12:06:11,481 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 12:06:11,481 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-28 12:06:11,481 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_24afeb92-69ac-4a3a-b1e2-a3836d64c81a/bin-2019/uautomizer/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-28 12:06:11,492 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 12:06:11,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 12:06:11,519 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 12:06:11,569 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 12:06:11,590 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-28 12:06:11,591 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2018-11-28 12:06:11,591 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-11-28 12:06:11,591 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-11-28 12:06:11,591 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-11-28 12:06:11,591 INFO L87 Difference]: Start difference. First operand 28 states and 29 transitions. Second operand 8 states. [2018-11-28 12:06:11,662 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 12:06:11,662 INFO L93 Difference]: Finished difference Result 45 states and 47 transitions. [2018-11-28 12:06:11,663 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-28 12:06:11,663 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 14 [2018-11-28 12:06:11,663 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 12:06:11,664 INFO L225 Difference]: With dead ends: 45 [2018-11-28 12:06:11,664 INFO L226 Difference]: Without dead ends: 44 [2018-11-28 12:06:11,664 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2018-11-28 12:06:11,665 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2018-11-28 12:06:11,667 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 31. [2018-11-28 12:06:11,667 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2018-11-28 12:06:11,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 33 transitions. [2018-11-28 12:06:11,668 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 33 transitions. Word has length 14 [2018-11-28 12:06:11,668 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 12:06:11,668 INFO L480 AbstractCegarLoop]: Abstraction has 31 states and 33 transitions. [2018-11-28 12:06:11,669 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-11-28 12:06:11,669 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 33 transitions. [2018-11-28 12:06:11,669 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-11-28 12:06:11,669 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 12:06:11,669 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 12:06:11,670 INFO L423 AbstractCegarLoop]: === Iteration 4 === [mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-28 12:06:11,670 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 12:06:11,670 INFO L82 PathProgramCache]: Analyzing trace with hash -402385597, now seen corresponding path program 1 times [2018-11-28 12:06:11,670 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 12:06:11,671 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 12:06:11,671 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:06:11,671 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 12:06:11,672 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:06:11,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 12:06:11,734 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 12:06:11,734 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-28 12:06:11,734 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_24afeb92-69ac-4a3a-b1e2-a3836d64c81a/bin-2019/uautomizer/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-28 12:06:11,744 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 12:06:11,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 12:06:11,758 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 12:06:11,803 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 12:06:11,829 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-28 12:06:11,829 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2018-11-28 12:06:11,829 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-11-28 12:06:11,830 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-11-28 12:06:11,830 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2018-11-28 12:06:11,831 INFO L87 Difference]: Start difference. First operand 31 states and 33 transitions. Second operand 8 states. [2018-11-28 12:06:11,873 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 12:06:11,873 INFO L93 Difference]: Finished difference Result 31 states and 33 transitions. [2018-11-28 12:06:11,873 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-28 12:06:11,874 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 15 [2018-11-28 12:06:11,874 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 12:06:11,874 INFO L225 Difference]: With dead ends: 31 [2018-11-28 12:06:11,874 INFO L226 Difference]: Without dead ends: 30 [2018-11-28 12:06:11,875 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2018-11-28 12:06:11,875 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2018-11-28 12:06:11,877 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2018-11-28 12:06:11,878 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2018-11-28 12:06:11,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 32 transitions. [2018-11-28 12:06:11,878 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 32 transitions. Word has length 15 [2018-11-28 12:06:11,879 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 12:06:11,879 INFO L480 AbstractCegarLoop]: Abstraction has 30 states and 32 transitions. [2018-11-28 12:06:11,879 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-11-28 12:06:11,879 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 32 transitions. [2018-11-28 12:06:11,879 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-11-28 12:06:11,880 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 12:06:11,880 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 12:06:11,880 INFO L423 AbstractCegarLoop]: === Iteration 5 === [mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-28 12:06:11,880 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 12:06:11,880 INFO L82 PathProgramCache]: Analyzing trace with hash 409354713, now seen corresponding path program 1 times [2018-11-28 12:06:11,881 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 12:06:11,881 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 12:06:11,882 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:06:11,882 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 12:06:11,882 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:06:11,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 12:06:11,954 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 12:06:11,955 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-28 12:06:11,955 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_24afeb92-69ac-4a3a-b1e2-a3836d64c81a/bin-2019/uautomizer/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-28 12:06:11,961 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 12:06:11,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 12:06:11,971 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 12:06:12,005 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-11-28 12:06:12,023 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-28 12:06:12,023 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [7] total 8 [2018-11-28 12:06:12,024 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-11-28 12:06:12,024 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-11-28 12:06:12,024 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2018-11-28 12:06:12,024 INFO L87 Difference]: Start difference. First operand 30 states and 32 transitions. Second operand 9 states. [2018-11-28 12:06:12,144 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 12:06:12,144 INFO L93 Difference]: Finished difference Result 52 states and 55 transitions. [2018-11-28 12:06:12,145 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-11-28 12:06:12,145 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 16 [2018-11-28 12:06:12,145 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 12:06:12,146 INFO L225 Difference]: With dead ends: 52 [2018-11-28 12:06:12,146 INFO L226 Difference]: Without dead ends: 51 [2018-11-28 12:06:12,146 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=42, Invalid=114, Unknown=0, NotChecked=0, Total=156 [2018-11-28 12:06:12,147 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2018-11-28 12:06:12,152 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 40. [2018-11-28 12:06:12,152 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40 states. [2018-11-28 12:06:12,153 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 45 transitions. [2018-11-28 12:06:12,153 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 45 transitions. Word has length 16 [2018-11-28 12:06:12,154 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 12:06:12,154 INFO L480 AbstractCegarLoop]: Abstraction has 40 states and 45 transitions. [2018-11-28 12:06:12,154 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-11-28 12:06:12,154 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 45 transitions. [2018-11-28 12:06:12,155 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-11-28 12:06:12,155 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 12:06:12,155 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 12:06:12,155 INFO L423 AbstractCegarLoop]: === Iteration 6 === [mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-28 12:06:12,156 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 12:06:12,156 INFO L82 PathProgramCache]: Analyzing trace with hash -194905710, now seen corresponding path program 1 times [2018-11-28 12:06:12,156 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 12:06:12,156 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 12:06:12,160 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:06:12,160 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 12:06:12,160 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:06:12,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 12:06:12,195 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-11-28 12:06:12,195 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 12:06:12,195 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-28 12:06:12,196 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-28 12:06:12,196 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-28 12:06:12,196 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-28 12:06:12,196 INFO L87 Difference]: Start difference. First operand 40 states and 45 transitions. Second operand 3 states. [2018-11-28 12:06:12,222 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 12:06:12,222 INFO L93 Difference]: Finished difference Result 52 states and 60 transitions. [2018-11-28 12:06:12,223 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-28 12:06:12,223 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 17 [2018-11-28 12:06:12,223 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 12:06:12,224 INFO L225 Difference]: With dead ends: 52 [2018-11-28 12:06:12,224 INFO L226 Difference]: Without dead ends: 51 [2018-11-28 12:06:12,224 INFO L631 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 [2018-11-28 12:06:12,224 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2018-11-28 12:06:12,227 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 45. [2018-11-28 12:06:12,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45 states. [2018-11-28 12:06:12,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 50 transitions. [2018-11-28 12:06:12,229 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 50 transitions. Word has length 17 [2018-11-28 12:06:12,229 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 12:06:12,229 INFO L480 AbstractCegarLoop]: Abstraction has 45 states and 50 transitions. [2018-11-28 12:06:12,229 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-28 12:06:12,229 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 50 transitions. [2018-11-28 12:06:12,230 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-11-28 12:06:12,230 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 12:06:12,230 INFO L402 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 12:06:12,231 INFO L423 AbstractCegarLoop]: === Iteration 7 === [mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-28 12:06:12,231 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 12:06:12,231 INFO L82 PathProgramCache]: Analyzing trace with hash -215550354, now seen corresponding path program 2 times [2018-11-28 12:06:12,231 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 12:06:12,231 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 12:06:12,232 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:06:12,232 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 12:06:12,233 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:06:12,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 12:06:12,281 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 12:06:12,281 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-28 12:06:12,281 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_24afeb92-69ac-4a3a-b1e2-a3836d64c81a/bin-2019/uautomizer/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-28 12:06:12,289 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-11-28 12:06:12,305 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2018-11-28 12:06:12,305 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-11-28 12:06:12,307 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 12:06:12,360 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2018-11-28 12:06:12,377 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-28 12:06:12,378 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 4] total 10 [2018-11-28 12:06:12,378 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-11-28 12:06:12,378 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-11-28 12:06:12,378 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2018-11-28 12:06:12,378 INFO L87 Difference]: Start difference. First operand 45 states and 50 transitions. Second operand 11 states. [2018-11-28 12:06:12,493 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 12:06:12,493 INFO L93 Difference]: Finished difference Result 84 states and 89 transitions. [2018-11-28 12:06:12,497 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-11-28 12:06:12,497 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 18 [2018-11-28 12:06:12,497 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 12:06:12,498 INFO L225 Difference]: With dead ends: 84 [2018-11-28 12:06:12,498 INFO L226 Difference]: Without dead ends: 83 [2018-11-28 12:06:12,499 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=107, Invalid=235, Unknown=0, NotChecked=0, Total=342 [2018-11-28 12:06:12,499 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83 states. [2018-11-28 12:06:12,504 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83 to 42. [2018-11-28 12:06:12,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2018-11-28 12:06:12,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 47 transitions. [2018-11-28 12:06:12,505 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 47 transitions. Word has length 18 [2018-11-28 12:06:12,506 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 12:06:12,506 INFO L480 AbstractCegarLoop]: Abstraction has 42 states and 47 transitions. [2018-11-28 12:06:12,506 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-11-28 12:06:12,506 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 47 transitions. [2018-11-28 12:06:12,506 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-11-28 12:06:12,507 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 12:06:12,507 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 12:06:12,507 INFO L423 AbstractCegarLoop]: === Iteration 8 === [mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-28 12:06:12,507 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 12:06:12,508 INFO L82 PathProgramCache]: Analyzing trace with hash -1747109637, now seen corresponding path program 1 times [2018-11-28 12:06:12,508 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 12:06:12,508 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 12:06:12,509 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:06:12,509 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-28 12:06:12,509 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:06:12,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 12:06:12,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 12:06:12,548 INFO L469 BasicCegarLoop]: Counterexample might be feasible [2018-11-28 12:06:12,576 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 12:06:12 BoogieIcfgContainer [2018-11-28 12:06:12,577 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-28 12:06:12,577 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-28 12:06:12,577 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-28 12:06:12,577 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-28 12:06:12,578 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 12:06:10" (3/4) ... [2018-11-28 12:06:12,580 INFO L138 WitnessPrinter]: Generating witness for reachability counterexample [2018-11-28 12:06:12,616 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_24afeb92-69ac-4a3a-b1e2-a3836d64c81a/bin-2019/uautomizer/witness.graphml [2018-11-28 12:06:12,616 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-28 12:06:12,617 INFO L168 Benchmark]: Toolchain (without parser) took 2231.98 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 113.8 MB). Free memory was 953.3 MB in the beginning and 917.3 MB in the end (delta: 36.0 MB). Peak memory consumption was 149.8 MB. Max. memory is 11.5 GB. [2018-11-28 12:06:12,618 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 1.0 GB. Free memory is still 979.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 12:06:12,618 INFO L168 Benchmark]: CACSL2BoogieTranslator took 172.16 ms. Allocated memory is still 1.0 GB. Free memory was 953.3 MB in the beginning and 942.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-28 12:06:12,619 INFO L168 Benchmark]: Boogie Procedure Inliner took 20.93 ms. Allocated memory is still 1.0 GB. Free memory is still 942.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 12:06:12,619 INFO L168 Benchmark]: Boogie Preprocessor took 66.85 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 113.8 MB). Free memory was 942.6 MB in the beginning and 1.1 GB in the end (delta: -169.2 MB). Peak memory consumption was 15.6 MB. Max. memory is 11.5 GB. [2018-11-28 12:06:12,620 INFO L168 Benchmark]: RCFGBuilder took 232.30 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 17.0 MB). Peak memory consumption was 17.0 MB. Max. memory is 11.5 GB. [2018-11-28 12:06:12,620 INFO L168 Benchmark]: TraceAbstraction took 1696.96 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 920.0 MB in the end (delta: 174.8 MB). Peak memory consumption was 174.8 MB. Max. memory is 11.5 GB. [2018-11-28 12:06:12,621 INFO L168 Benchmark]: Witness Printer took 39.17 ms. Allocated memory is still 1.1 GB. Free memory was 920.0 MB in the beginning and 917.3 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-28 12:06:12,623 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 1.0 GB. Free memory is still 979.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 172.16 ms. Allocated memory is still 1.0 GB. Free memory was 953.3 MB in the beginning and 942.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 20.93 ms. Allocated memory is still 1.0 GB. Free memory is still 942.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 66.85 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 113.8 MB). Free memory was 942.6 MB in the beginning and 1.1 GB in the end (delta: -169.2 MB). Peak memory consumption was 15.6 MB. Max. memory is 11.5 GB. * RCFGBuilder took 232.30 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 17.0 MB). Peak memory consumption was 17.0 MB. Max. memory is 11.5 GB. * TraceAbstraction took 1696.96 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 920.0 MB in the end (delta: 174.8 MB). Peak memory consumption was 174.8 MB. Max. memory is 11.5 GB. * Witness Printer took 39.17 ms. Allocated memory is still 1.1 GB. Free memory was 920.0 MB in the beginning and 917.3 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 26]: integer overflow possible integer overflow possible We found a FailurePath: [L12] int a_length = __VERIFIER_nondet_int(); [L13] COND FALSE !(a_length < 1) [L16] int a[a_length]; [L17] int j = 0; VAL [a={2147483649:0}, a_length=1, j=0] [L17] COND TRUE j < a_length [L18] a[j] = __VERIFIER_nondet_int() [L17] j++ VAL [a={2147483649:0}, a_length=1, j=1] [L17] COND FALSE !(j < a_length) VAL [a={2147483649:0}, a_length=1, j=1] [L20] int offset = 1; [L21] int i = 0; VAL [a={2147483649:0}, a_length=1, i=0, j=1, offset=1] [L22] COND TRUE i < a_length [L23] EXPR a[i] VAL [a={2147483649:0}, a[i]=2147483647, a_length=1, i=0, j=1, offset=1] [L23] COND FALSE !(a[i] < 0) [L26] EXPR i + offset [L26] EXPR a[i] VAL [a={2147483649:0}, a[i]=2147483647, a_length=1, i=0, j=1, offset=1] [L26] i + offset + a[i] VAL [a={2147483649:0}, a[i]=2147483647, a_length=1, i=0, j=1, offset=1] - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 29 locations, 6 error locations. UNSAFE Result, 1.6s OverallTime, 8 OverallIterations, 3 TraceHistogramMax, 0.5s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 133 SDtfs, 231 SDslu, 332 SDs, 0 SdLazy, 234 SolverSat, 17 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 109 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=45occurred in iteration=6, 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, 7 MinimizatonAttempts, 82 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 183 NumberOfCodeBlocks, 175 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 154 ConstructedInterpolants, 0 QuantifiedInterpolants, 5034 SizeOfPredicates, 6 NumberOfNonLiveVariables, 226 ConjunctsInSsa, 18 ConjunctsInUnsatCore, 11 InterpolantComputations, 5 PerfectInterpolantSequences, 12/37 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...