./Ultimate.py --spec ../../sv-benchmarks/c/NoOverflows.prp --file ../../sv-benchmarks/c/termination-crafted-lit/LeeJonesBen-Amram-POPL2001-Ex4_true-termination_true-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_184e22bf-9542-46ce-a55d-53fd379cfc18/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_184e22bf-9542-46ce-a55d-53fd379cfc18/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_184e22bf-9542-46ce-a55d-53fd379cfc18/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_184e22bf-9542-46ce-a55d-53fd379cfc18/bin-2019/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/termination-crafted-lit/LeeJonesBen-Amram-POPL2001-Ex4_true-termination_true-no-overflow.c -s /tmp/vcloud-vcloud-master/worker/working_dir_184e22bf-9542-46ce-a55d-53fd379cfc18/bin-2019/uautomizer/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_184e22bf-9542-46ce-a55d-53fd379cfc18/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 554582d6fc3de8e87f5dd30e5019302b6e1b96be ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-1dbac8b [2018-11-10 04:57:47,940 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-10 04:57:47,942 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-10 04:57:47,950 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-10 04:57:47,950 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-10 04:57:47,951 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-10 04:57:47,952 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-10 04:57:47,953 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-10 04:57:47,954 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-10 04:57:47,955 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-10 04:57:47,956 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-10 04:57:47,956 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-10 04:57:47,957 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-10 04:57:47,957 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-10 04:57:47,958 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-10 04:57:47,959 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-10 04:57:47,959 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-10 04:57:47,960 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-10 04:57:47,962 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-10 04:57:47,963 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-10 04:57:47,964 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-10 04:57:47,964 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-10 04:57:47,966 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-10 04:57:47,966 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-10 04:57:47,967 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-10 04:57:47,967 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-10 04:57:47,968 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-10 04:57:47,969 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-10 04:57:47,969 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-10 04:57:47,970 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-10 04:57:47,970 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-10 04:57:47,971 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-10 04:57:47,971 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-10 04:57:47,971 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-10 04:57:47,972 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-10 04:57:47,972 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-10 04:57:47,972 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_184e22bf-9542-46ce-a55d-53fd379cfc18/bin-2019/uautomizer/config/svcomp-Overflow-64bit-Automizer_Default.epf [2018-11-10 04:57:47,982 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-10 04:57:47,983 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-10 04:57:47,983 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-10 04:57:47,983 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-11-10 04:57:47,984 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-10 04:57:47,984 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-10 04:57:47,984 INFO L133 SettingsManager]: * Use SBE=true [2018-11-10 04:57:47,984 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-10 04:57:47,984 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-11-10 04:57:47,985 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-10 04:57:47,985 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-10 04:57:47,985 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-10 04:57:47,985 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-10 04:57:47,985 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-10 04:57:47,985 INFO L133 SettingsManager]: * Check absence of signed integer overflows=true [2018-11-10 04:57:47,985 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-10 04:57:47,986 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-10 04:57:47,986 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-10 04:57:47,986 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-10 04:57:47,986 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-10 04:57:47,986 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-10 04:57:47,986 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-10 04:57:47,986 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-10 04:57:47,987 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-10 04:57:47,987 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-10 04:57:47,987 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-10 04:57:47,987 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-10 04:57:47,987 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-10 04:57:47,987 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_184e22bf-9542-46ce-a55d-53fd379cfc18/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 -> 554582d6fc3de8e87f5dd30e5019302b6e1b96be [2018-11-10 04:57:48,012 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-10 04:57:48,021 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-10 04:57:48,024 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-10 04:57:48,025 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-10 04:57:48,026 INFO L276 PluginConnector]: CDTParser initialized [2018-11-10 04:57:48,026 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_184e22bf-9542-46ce-a55d-53fd379cfc18/bin-2019/uautomizer/../../sv-benchmarks/c/termination-crafted-lit/LeeJonesBen-Amram-POPL2001-Ex4_true-termination_true-no-overflow.c [2018-11-10 04:57:48,068 INFO L218 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_184e22bf-9542-46ce-a55d-53fd379cfc18/bin-2019/uautomizer/data/4eda3741d/09bc53bec73c4793a70fd3bf54ca8089/FLAGd57017a2c [2018-11-10 04:57:48,462 INFO L298 CDTParser]: Found 1 translation units. [2018-11-10 04:57:48,463 INFO L158 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_184e22bf-9542-46ce-a55d-53fd379cfc18/sv-benchmarks/c/termination-crafted-lit/LeeJonesBen-Amram-POPL2001-Ex4_true-termination_true-no-overflow.c [2018-11-10 04:57:48,467 INFO L346 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_184e22bf-9542-46ce-a55d-53fd379cfc18/bin-2019/uautomizer/data/4eda3741d/09bc53bec73c4793a70fd3bf54ca8089/FLAGd57017a2c [2018-11-10 04:57:48,478 INFO L354 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_184e22bf-9542-46ce-a55d-53fd379cfc18/bin-2019/uautomizer/data/4eda3741d/09bc53bec73c4793a70fd3bf54ca8089 [2018-11-10 04:57:48,480 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-10 04:57:48,481 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-10 04:57:48,481 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-10 04:57:48,481 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-10 04:57:48,484 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-10 04:57:48,485 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 04:57:48" (1/1) ... [2018-11-10 04:57:48,487 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5d89bcad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 04:57:48, skipping insertion in model container [2018-11-10 04:57:48,487 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 04:57:48" (1/1) ... [2018-11-10 04:57:48,494 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-10 04:57:48,507 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-10 04:57:48,628 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 04:57:48,630 INFO L189 MainTranslator]: Completed pre-run [2018-11-10 04:57:48,639 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 04:57:48,648 INFO L193 MainTranslator]: Completed translation [2018-11-10 04:57:48,648 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 04:57:48 WrapperNode [2018-11-10 04:57:48,648 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-10 04:57:48,648 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-10 04:57:48,648 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-10 04:57:48,649 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-10 04:57:48,656 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 04:57:48" (1/1) ... [2018-11-10 04:57:48,656 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 04:57:48" (1/1) ... [2018-11-10 04:57:48,660 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 04:57:48" (1/1) ... [2018-11-10 04:57:48,661 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 04:57:48" (1/1) ... [2018-11-10 04:57:48,663 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 04:57:48" (1/1) ... [2018-11-10 04:57:48,665 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 04:57:48" (1/1) ... [2018-11-10 04:57:48,666 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 04:57:48" (1/1) ... [2018-11-10 04:57:48,667 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-10 04:57:48,667 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-10 04:57:48,667 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-10 04:57:48,667 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-10 04:57:48,668 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 04:57:48" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_184e22bf-9542-46ce-a55d-53fd379cfc18/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 04:57:48,740 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-10 04:57:48,740 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-10 04:57:48,740 INFO L138 BoogieDeclarations]: Found implementation of procedure p [2018-11-10 04:57:48,740 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-10 04:57:48,741 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2018-11-10 04:57:48,741 INFO L130 BoogieDeclarations]: Found specification of procedure p [2018-11-10 04:57:48,741 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-10 04:57:48,741 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-10 04:57:48,741 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-10 04:57:48,845 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-10 04:57:48,846 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 04:57:48 BoogieIcfgContainer [2018-11-10 04:57:48,846 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-10 04:57:48,846 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-10 04:57:48,846 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-10 04:57:48,849 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-10 04:57:48,849 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.11 04:57:48" (1/3) ... [2018-11-10 04:57:48,850 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a334828 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 04:57:48, skipping insertion in model container [2018-11-10 04:57:48,850 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 04:57:48" (2/3) ... [2018-11-10 04:57:48,850 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a334828 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 04:57:48, skipping insertion in model container [2018-11-10 04:57:48,850 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 04:57:48" (3/3) ... [2018-11-10 04:57:48,852 INFO L112 eAbstractionObserver]: Analyzing ICFG LeeJonesBen-Amram-POPL2001-Ex4_true-termination_true-no-overflow.c [2018-11-10 04:57:48,857 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-10 04:57:48,861 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 4 error locations. [2018-11-10 04:57:48,870 INFO L257 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2018-11-10 04:57:48,887 INFO L135 ementStrategyFactory]: Using default assertion order modulation [2018-11-10 04:57:48,887 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-10 04:57:48,887 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-10 04:57:48,888 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-10 04:57:48,888 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-10 04:57:48,888 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-10 04:57:48,888 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-10 04:57:48,888 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-10 04:57:48,888 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-10 04:57:48,898 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states. [2018-11-10 04:57:48,901 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-11-10 04:57:48,901 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 04:57:48,902 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 04:57:48,903 INFO L424 AbstractCegarLoop]: === Iteration 1 === [pErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, pErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, pErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, pErr3ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-10 04:57:48,906 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 04:57:48,907 INFO L82 PathProgramCache]: Analyzing trace with hash -1909339610, now seen corresponding path program 1 times [2018-11-10 04:57:48,908 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 04:57:48,909 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 04:57:48,942 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 04:57:48,943 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 04:57:48,943 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 04:57:48,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 04:57:49,030 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 04:57:49,032 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 04:57:49,032 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-10 04:57:49,035 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-10 04:57:49,043 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-10 04:57:49,043 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-10 04:57:49,045 INFO L87 Difference]: Start difference. First operand 30 states. Second operand 5 states. [2018-11-10 04:57:49,146 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 04:57:49,146 INFO L93 Difference]: Finished difference Result 49 states and 59 transitions. [2018-11-10 04:57:49,147 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-10 04:57:49,147 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 10 [2018-11-10 04:57:49,148 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 04:57:49,154 INFO L225 Difference]: With dead ends: 49 [2018-11-10 04:57:49,154 INFO L226 Difference]: Without dead ends: 32 [2018-11-10 04:57:49,156 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-11-10 04:57:49,167 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2018-11-10 04:57:49,177 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 23. [2018-11-10 04:57:49,178 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2018-11-10 04:57:49,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 25 transitions. [2018-11-10 04:57:49,180 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 25 transitions. Word has length 10 [2018-11-10 04:57:49,180 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 04:57:49,180 INFO L481 AbstractCegarLoop]: Abstraction has 23 states and 25 transitions. [2018-11-10 04:57:49,180 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-10 04:57:49,180 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 25 transitions. [2018-11-10 04:57:49,180 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-11-10 04:57:49,180 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 04:57:49,181 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 04:57:49,181 INFO L424 AbstractCegarLoop]: === Iteration 2 === [pErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, pErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, pErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, pErr3ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-10 04:57:49,181 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 04:57:49,181 INFO L82 PathProgramCache]: Analyzing trace with hash 940014271, now seen corresponding path program 1 times [2018-11-10 04:57:49,181 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 04:57:49,181 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 04:57:49,182 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 04:57:49,182 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 04:57:49,182 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 04:57:49,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 04:57:49,207 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 04:57:49,207 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 04:57:49,207 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-10 04:57:49,208 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-10 04:57:49,208 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-10 04:57:49,209 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-10 04:57:49,209 INFO L87 Difference]: Start difference. First operand 23 states and 25 transitions. Second operand 3 states. [2018-11-10 04:57:49,228 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 04:57:49,228 INFO L93 Difference]: Finished difference Result 23 states and 25 transitions. [2018-11-10 04:57:49,228 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-10 04:57:49,229 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 11 [2018-11-10 04:57:49,229 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 04:57:49,229 INFO L225 Difference]: With dead ends: 23 [2018-11-10 04:57:49,229 INFO L226 Difference]: Without dead ends: 22 [2018-11-10 04:57:49,230 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 04:57:49,230 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2018-11-10 04:57:49,233 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2018-11-10 04:57:49,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2018-11-10 04:57:49,233 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 24 transitions. [2018-11-10 04:57:49,234 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 24 transitions. Word has length 11 [2018-11-10 04:57:49,234 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 04:57:49,234 INFO L481 AbstractCegarLoop]: Abstraction has 22 states and 24 transitions. [2018-11-10 04:57:49,234 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-10 04:57:49,234 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 24 transitions. [2018-11-10 04:57:49,234 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-11-10 04:57:49,235 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 04:57:49,235 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 04:57:49,235 INFO L424 AbstractCegarLoop]: === Iteration 3 === [pErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, pErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, pErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, pErr3ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-10 04:57:49,235 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 04:57:49,235 INFO L82 PathProgramCache]: Analyzing trace with hash 940021254, now seen corresponding path program 1 times [2018-11-10 04:57:49,235 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 04:57:49,236 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 04:57:49,236 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 04:57:49,236 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 04:57:49,236 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 04:57:49,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 04:57:49,275 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 04:57:49,275 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 04:57:49,275 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-10 04:57:49,276 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-10 04:57:49,276 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-10 04:57:49,276 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-10 04:57:49,276 INFO L87 Difference]: Start difference. First operand 22 states and 24 transitions. Second operand 5 states. [2018-11-10 04:57:49,328 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 04:57:49,328 INFO L93 Difference]: Finished difference Result 34 states and 37 transitions. [2018-11-10 04:57:49,329 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-10 04:57:49,329 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 11 [2018-11-10 04:57:49,329 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 04:57:49,329 INFO L225 Difference]: With dead ends: 34 [2018-11-10 04:57:49,330 INFO L226 Difference]: Without dead ends: 33 [2018-11-10 04:57:49,330 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-11-10 04:57:49,330 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2018-11-10 04:57:49,333 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 28. [2018-11-10 04:57:49,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2018-11-10 04:57:49,334 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 32 transitions. [2018-11-10 04:57:49,334 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 32 transitions. Word has length 11 [2018-11-10 04:57:49,335 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 04:57:49,335 INFO L481 AbstractCegarLoop]: Abstraction has 28 states and 32 transitions. [2018-11-10 04:57:49,335 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-10 04:57:49,335 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 32 transitions. [2018-11-10 04:57:49,335 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2018-11-10 04:57:49,335 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 04:57:49,335 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 04:57:49,336 INFO L424 AbstractCegarLoop]: === Iteration 4 === [pErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, pErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, pErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, pErr3ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-10 04:57:49,336 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 04:57:49,336 INFO L82 PathProgramCache]: Analyzing trace with hash -924112151, now seen corresponding path program 1 times [2018-11-10 04:57:49,336 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 04:57:49,336 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 04:57:49,337 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 04:57:49,337 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 04:57:49,337 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 04:57:49,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 04:57:49,359 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 04:57:49,359 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 04:57:49,359 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-10 04:57:49,359 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-10 04:57:49,359 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-10 04:57:49,360 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-10 04:57:49,360 INFO L87 Difference]: Start difference. First operand 28 states and 32 transitions. Second operand 3 states. [2018-11-10 04:57:49,368 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 04:57:49,368 INFO L93 Difference]: Finished difference Result 28 states and 32 transitions. [2018-11-10 04:57:49,369 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-10 04:57:49,369 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 12 [2018-11-10 04:57:49,369 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 04:57:49,369 INFO L225 Difference]: With dead ends: 28 [2018-11-10 04:57:49,369 INFO L226 Difference]: Without dead ends: 27 [2018-11-10 04:57:49,370 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 04:57:49,370 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2018-11-10 04:57:49,373 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2018-11-10 04:57:49,373 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2018-11-10 04:57:49,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 30 transitions. [2018-11-10 04:57:49,374 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 30 transitions. Word has length 12 [2018-11-10 04:57:49,374 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 04:57:49,374 INFO L481 AbstractCegarLoop]: Abstraction has 27 states and 30 transitions. [2018-11-10 04:57:49,374 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-10 04:57:49,374 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 30 transitions. [2018-11-10 04:57:49,374 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-11-10 04:57:49,375 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 04:57:49,375 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 04:57:49,375 INFO L424 AbstractCegarLoop]: === Iteration 5 === [pErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, pErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, pErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, pErr3ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-10 04:57:49,375 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 04:57:49,375 INFO L82 PathProgramCache]: Analyzing trace with hash -1638077220, now seen corresponding path program 1 times [2018-11-10 04:57:49,375 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 04:57:49,375 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 04:57:49,376 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 04:57:49,376 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 04:57:49,376 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 04:57:49,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 04:57:49,418 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 04:57:49,418 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-10 04:57:49,418 INFO L225 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_184e22bf-9542-46ce-a55d-53fd379cfc18/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 [2018-11-10 04:57:49,424 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 04:57:49,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 04:57:49,439 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 04:57:49,454 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 04:57:49,480 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-10 04:57:49,480 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 6 [2018-11-10 04:57:49,480 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-10 04:57:49,480 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-10 04:57:49,481 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-11-10 04:57:49,481 INFO L87 Difference]: Start difference. First operand 27 states and 30 transitions. Second operand 7 states. [2018-11-10 04:57:49,551 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 04:57:49,551 INFO L93 Difference]: Finished difference Result 49 states and 54 transitions. [2018-11-10 04:57:49,551 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-11-10 04:57:49,551 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 15 [2018-11-10 04:57:49,552 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 04:57:49,552 INFO L225 Difference]: With dead ends: 49 [2018-11-10 04:57:49,552 INFO L226 Difference]: Without dead ends: 47 [2018-11-10 04:57:49,552 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2018-11-10 04:57:49,553 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2018-11-10 04:57:49,557 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 35. [2018-11-10 04:57:49,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2018-11-10 04:57:49,558 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 40 transitions. [2018-11-10 04:57:49,558 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 40 transitions. Word has length 15 [2018-11-10 04:57:49,558 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 04:57:49,558 INFO L481 AbstractCegarLoop]: Abstraction has 35 states and 40 transitions. [2018-11-10 04:57:49,558 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-10 04:57:49,558 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 40 transitions. [2018-11-10 04:57:49,559 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-11-10 04:57:49,559 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 04:57:49,559 INFO L375 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 04:57:49,559 INFO L424 AbstractCegarLoop]: === Iteration 6 === [pErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, pErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, pErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, pErr3ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-10 04:57:49,560 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 04:57:49,560 INFO L82 PathProgramCache]: Analyzing trace with hash 759220752, now seen corresponding path program 1 times [2018-11-10 04:57:49,560 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 04:57:49,560 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 04:57:49,561 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 04:57:49,561 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 04:57:49,561 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 04:57:49,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 04:57:49,591 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 04:57:49,592 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 04:57:49,592 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-10 04:57:49,592 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-10 04:57:49,592 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-10 04:57:49,592 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-10 04:57:49,593 INFO L87 Difference]: Start difference. First operand 35 states and 40 transitions. Second operand 5 states. [2018-11-10 04:57:49,635 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 04:57:49,635 INFO L93 Difference]: Finished difference Result 45 states and 51 transitions. [2018-11-10 04:57:49,636 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-10 04:57:49,636 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 16 [2018-11-10 04:57:49,636 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 04:57:49,637 INFO L225 Difference]: With dead ends: 45 [2018-11-10 04:57:49,637 INFO L226 Difference]: Without dead ends: 44 [2018-11-10 04:57:49,637 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2018-11-10 04:57:49,637 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2018-11-10 04:57:49,641 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 34. [2018-11-10 04:57:49,641 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2018-11-10 04:57:49,642 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 39 transitions. [2018-11-10 04:57:49,642 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 39 transitions. Word has length 16 [2018-11-10 04:57:49,642 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 04:57:49,642 INFO L481 AbstractCegarLoop]: Abstraction has 34 states and 39 transitions. [2018-11-10 04:57:49,643 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-10 04:57:49,643 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 39 transitions. [2018-11-10 04:57:49,643 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-11-10 04:57:49,643 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 04:57:49,643 INFO L375 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 04:57:49,644 INFO L424 AbstractCegarLoop]: === Iteration 7 === [pErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, pErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, pErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, pErr3ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-10 04:57:49,644 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 04:57:49,644 INFO L82 PathProgramCache]: Analyzing trace with hash -1204199228, now seen corresponding path program 1 times [2018-11-10 04:57:49,644 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 04:57:49,644 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 04:57:49,645 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 04:57:49,645 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 04:57:49,645 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 04:57:49,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 04:57:49,686 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 04:57:49,687 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-10 04:57:49,687 INFO L225 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_184e22bf-9542-46ce-a55d-53fd379cfc18/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 [2018-11-10 04:57:49,692 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 04:57:49,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 04:57:49,701 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 04:57:49,704 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 04:57:49,720 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-10 04:57:49,721 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 6 [2018-11-10 04:57:49,721 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-10 04:57:49,721 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-10 04:57:49,721 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-11-10 04:57:49,721 INFO L87 Difference]: Start difference. First operand 34 states and 39 transitions. Second operand 7 states. [2018-11-10 04:57:49,792 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 04:57:49,792 INFO L93 Difference]: Finished difference Result 53 states and 61 transitions. [2018-11-10 04:57:49,792 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-10 04:57:49,792 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 16 [2018-11-10 04:57:49,793 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 04:57:49,793 INFO L225 Difference]: With dead ends: 53 [2018-11-10 04:57:49,793 INFO L226 Difference]: Without dead ends: 52 [2018-11-10 04:57:49,794 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2018-11-10 04:57:49,794 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2018-11-10 04:57:49,798 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 37. [2018-11-10 04:57:49,798 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2018-11-10 04:57:49,799 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 43 transitions. [2018-11-10 04:57:49,799 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 43 transitions. Word has length 16 [2018-11-10 04:57:49,799 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 04:57:49,800 INFO L481 AbstractCegarLoop]: Abstraction has 37 states and 43 transitions. [2018-11-10 04:57:49,800 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-10 04:57:49,800 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 43 transitions. [2018-11-10 04:57:49,800 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2018-11-10 04:57:49,800 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 04:57:49,800 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 04:57:49,801 INFO L424 AbstractCegarLoop]: === Iteration 8 === [pErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, pErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, pErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, pErr3ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-10 04:57:49,801 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 04:57:49,801 INFO L82 PathProgramCache]: Analyzing trace with hash 745081830, now seen corresponding path program 2 times [2018-11-10 04:57:49,801 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 04:57:49,801 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 04:57:49,802 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 04:57:49,802 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 04:57:49,802 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 04:57:49,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 04:57:49,848 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 6 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 04:57:49,848 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-10 04:57:49,848 INFO L225 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_184e22bf-9542-46ce-a55d-53fd379cfc18/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 [2018-11-10 04:57:49,855 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-11-10 04:57:49,866 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-11-10 04:57:49,866 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-11-10 04:57:49,868 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 04:57:49,920 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 3 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 04:57:49,947 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-10 04:57:49,947 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 8] total 11 [2018-11-10 04:57:49,948 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-11-10 04:57:49,948 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-11-10 04:57:49,948 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2018-11-10 04:57:49,948 INFO L87 Difference]: Start difference. First operand 37 states and 43 transitions. Second operand 12 states. [2018-11-10 04:57:50,223 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 04:57:50,223 INFO L93 Difference]: Finished difference Result 136 states and 158 transitions. [2018-11-10 04:57:50,224 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2018-11-10 04:57:50,224 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 20 [2018-11-10 04:57:50,225 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 04:57:50,225 INFO L225 Difference]: With dead ends: 136 [2018-11-10 04:57:50,225 INFO L226 Difference]: Without dead ends: 0 [2018-11-10 04:57:50,226 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 156 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=226, Invalid=644, Unknown=0, NotChecked=0, Total=870 [2018-11-10 04:57:50,226 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-10 04:57:50,227 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-10 04:57:50,227 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-10 04:57:50,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-10 04:57:50,227 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 20 [2018-11-10 04:57:50,227 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 04:57:50,227 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-10 04:57:50,227 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-11-10 04:57:50,227 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-10 04:57:50,227 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-10 04:57:50,231 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-10 04:57:50,589 INFO L425 ceAbstractionStarter]: For program point pErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 17) no Hoare annotation was computed. [2018-11-10 04:57:50,590 INFO L425 ceAbstractionStarter]: For program point pErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 17) no Hoare annotation was computed. [2018-11-10 04:57:50,590 INFO L425 ceAbstractionStarter]: For program point pEXIT(lines 12 22) no Hoare annotation was computed. [2018-11-10 04:57:50,590 INFO L425 ceAbstractionStarter]: For program point L17(line 17) no Hoare annotation was computed. [2018-11-10 04:57:50,590 INFO L425 ceAbstractionStarter]: For program point L16(lines 16 20) no Hoare annotation was computed. [2018-11-10 04:57:50,590 INFO L425 ceAbstractionStarter]: For program point L17-1(line 17) no Hoare annotation was computed. [2018-11-10 04:57:50,590 INFO L428 ceAbstractionStarter]: At program point pENTRY(lines 12 22) the Hoare annotation is: true [2018-11-10 04:57:50,590 INFO L421 ceAbstractionStarter]: At program point L17-2(line 17) the Hoare annotation is: (let ((.cse0 (< 2147483647 |p_#in~m|)) (.cse1 (< 2147483647 |p_#in~r|))) (and (or (<= p_~n 2147483646) (< 2147483646 |p_#in~n|) .cse0 .cse1) (or (< 2147483647 |p_#in~n|) .cse0 (and (<= p_~n 2147483647) (<= p_~m 2147483647) (<= p_~r 2147483646) (<= 1 p_~n)) .cse1))) [2018-11-10 04:57:50,591 INFO L425 ceAbstractionStarter]: For program point L14(line 14) no Hoare annotation was computed. [2018-11-10 04:57:50,591 INFO L425 ceAbstractionStarter]: For program point L17-3(line 17) no Hoare annotation was computed. [2018-11-10 04:57:50,591 INFO L425 ceAbstractionStarter]: For program point L13(lines 13 21) no Hoare annotation was computed. [2018-11-10 04:57:50,591 INFO L425 ceAbstractionStarter]: For program point L14-1(line 14) no Hoare annotation was computed. [2018-11-10 04:57:50,591 INFO L425 ceAbstractionStarter]: For program point pErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 14) no Hoare annotation was computed. [2018-11-10 04:57:50,591 INFO L421 ceAbstractionStarter]: At program point L14-2(line 14) the Hoare annotation is: (let ((.cse0 (< 2147483647 |p_#in~n|)) (.cse1 (< 2147483647 |p_#in~m|)) (.cse2 (< 2147483647 |p_#in~r|))) (and (or (and (<= p_~n 2147483647) (<= 1 p_~r) (<= p_~m 2147483647) (<= p_~r 2147483647)) .cse0 .cse1 .cse2) (or .cse0 (<= p_~r 2147483646) .cse1 (< 2147483646 |p_#in~r|)) (or (< 2147483646 |p_#in~n|) .cse1 (<= p_~n 2147483646) .cse2))) [2018-11-10 04:57:50,591 INFO L425 ceAbstractionStarter]: For program point pErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 14) no Hoare annotation was computed. [2018-11-10 04:57:50,591 INFO L425 ceAbstractionStarter]: For program point L14-3(line 14) no Hoare annotation was computed. [2018-11-10 04:57:50,591 INFO L425 ceAbstractionStarter]: For program point pFINAL(lines 12 22) no Hoare annotation was computed. [2018-11-10 04:57:50,591 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2018-11-10 04:57:50,592 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-11-10 04:57:50,592 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-11-10 04:57:50,594 INFO L428 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-11-10 04:57:50,594 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-11-10 04:57:50,594 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-11-10 04:57:50,594 INFO L428 ceAbstractionStarter]: At program point mainENTRY(lines 24 32) the Hoare annotation is: true [2018-11-10 04:57:50,595 INFO L421 ceAbstractionStarter]: At program point L29(line 29) the Hoare annotation is: (and (<= main_~n~0 2147483647) (<= main_~m~0 2147483647) (<= main_~r~0 2147483647)) [2018-11-10 04:57:50,595 INFO L425 ceAbstractionStarter]: For program point mainFINAL(lines 24 32) no Hoare annotation was computed. [2018-11-10 04:57:50,595 INFO L425 ceAbstractionStarter]: For program point L28(lines 28 30) no Hoare annotation was computed. [2018-11-10 04:57:50,595 INFO L425 ceAbstractionStarter]: For program point L29-1(line 29) no Hoare annotation was computed. [2018-11-10 04:57:50,595 INFO L425 ceAbstractionStarter]: For program point L28-2(lines 28 30) no Hoare annotation was computed. [2018-11-10 04:57:50,595 INFO L425 ceAbstractionStarter]: For program point mainEXIT(lines 24 32) no Hoare annotation was computed. [2018-11-10 04:57:50,598 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.11 04:57:50 BoogieIcfgContainer [2018-11-10 04:57:50,598 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-10 04:57:50,598 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-10 04:57:50,598 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-10 04:57:50,599 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-10 04:57:50,599 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 04:57:48" (3/4) ... [2018-11-10 04:57:50,602 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-10 04:57:50,608 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure p [2018-11-10 04:57:50,609 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-11-10 04:57:50,609 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-11-10 04:57:50,613 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2018-11-10 04:57:50,613 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2018-11-10 04:57:50,613 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-11-10 04:57:50,652 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_184e22bf-9542-46ce-a55d-53fd379cfc18/bin-2019/uautomizer/witness.graphml [2018-11-10 04:57:50,652 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-10 04:57:50,652 INFO L168 Benchmark]: Toolchain (without parser) took 2172.12 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 141.6 MB). Free memory was 960.2 MB in the beginning and 831.0 MB in the end (delta: 129.3 MB). Peak memory consumption was 270.8 MB. Max. memory is 11.5 GB. [2018-11-10 04:57:50,654 INFO L168 Benchmark]: CDTParser took 0.15 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 04:57:50,654 INFO L168 Benchmark]: CACSL2BoogieTranslator took 166.90 ms. Allocated memory is still 1.0 GB. Free memory was 960.2 MB in the beginning and 949.4 MB in the end (delta: 10.9 MB). Peak memory consumption was 10.9 MB. Max. memory is 11.5 GB. [2018-11-10 04:57:50,654 INFO L168 Benchmark]: Boogie Preprocessor took 18.47 ms. Allocated memory is still 1.0 GB. Free memory is still 949.4 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 04:57:50,654 INFO L168 Benchmark]: RCFGBuilder took 178.66 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 141.6 MB). Free memory was 949.4 MB in the beginning and 1.1 GB in the end (delta: -178.3 MB). Peak memory consumption was 22.4 MB. Max. memory is 11.5 GB. [2018-11-10 04:57:50,655 INFO L168 Benchmark]: TraceAbstraction took 1751.65 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 834.3 MB in the end (delta: 293.3 MB). Peak memory consumption was 293.3 MB. Max. memory is 11.5 GB. [2018-11-10 04:57:50,655 INFO L168 Benchmark]: Witness Printer took 53.55 ms. Allocated memory is still 1.2 GB. Free memory was 834.3 MB in the beginning and 831.0 MB in the end (delta: 3.4 MB). Peak memory consumption was 3.4 MB. Max. memory is 11.5 GB. [2018-11-10 04:57:50,657 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 985.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 166.90 ms. Allocated memory is still 1.0 GB. Free memory was 960.2 MB in the beginning and 949.4 MB in the end (delta: 10.9 MB). Peak memory consumption was 10.9 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 18.47 ms. Allocated memory is still 1.0 GB. Free memory is still 949.4 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 178.66 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 141.6 MB). Free memory was 949.4 MB in the beginning and 1.1 GB in the end (delta: -178.3 MB). Peak memory consumption was 22.4 MB. Max. memory is 11.5 GB. * TraceAbstraction took 1751.65 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 834.3 MB in the end (delta: 293.3 MB). Peak memory consumption was 293.3 MB. Max. memory is 11.5 GB. * Witness Printer took 53.55 ms. Allocated memory is still 1.2 GB. Free memory was 834.3 MB in the beginning and 831.0 MB in the end (delta: 3.4 MB). Peak memory consumption was 3.4 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 14]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 14]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 17]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 17]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - AllSpecificationsHoldResult: All specifications hold 4 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 30 locations, 4 error locations. SAFE Result, 1.7s OverallTime, 8 OverallIterations, 3 TraceHistogramMax, 0.6s AutomataDifference, 0.0s DeadEndRemovalTime, 0.3s HoareAnnotationTime, HoareTripleCheckerStatistics: 160 SDtfs, 228 SDslu, 305 SDs, 0 SdLazy, 380 SolverSat, 34 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 117 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 160 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=37occurred in iteration=7, 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, 8 MinimizatonAttempts, 51 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 8 LocationsWithAnnotation, 92 PreInvPairs, 92 NumberOfFragments, 117 HoareAnnotationTreeSize, 92 FomulaSimplifications, 3427 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 8 FomulaSimplificationsInter, 708 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 162 NumberOfCodeBlocks, 162 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 151 ConstructedInterpolants, 0 QuantifiedInterpolants, 4835 SizeOfPredicates, 7 NumberOfNonLiveVariables, 192 ConjunctsInSsa, 23 ConjunctsInUnsatCore, 11 InterpolantComputations, 5 PerfectInterpolantSequences, 11/34 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...