./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-crafted/MutualRecursion_1a_true-no-overflow_false-termination_true-valid-memsafety.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_893b0e6a-06a6-4c21-94cc-af71977319fa/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_893b0e6a-06a6-4c21-94cc-af71977319fa/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_893b0e6a-06a6-4c21-94cc-af71977319fa/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_893b0e6a-06a6-4c21-94cc-af71977319fa/bin-2019/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/termination-crafted/MutualRecursion_1a_true-no-overflow_false-termination_true-valid-memsafety.c -s /tmp/vcloud-vcloud-master/worker/working_dir_893b0e6a-06a6-4c21-94cc-af71977319fa/bin-2019/uautomizer/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_893b0e6a-06a6-4c21-94cc-af71977319fa/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 c27ad91a5bec233234e07a14bfd5505e082df4cd .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-0cd3be1 [2018-11-28 13:19:06,796 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-28 13:19:06,798 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-28 13:19:06,805 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-28 13:19:06,805 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-28 13:19:06,806 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-28 13:19:06,806 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-28 13:19:06,807 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-28 13:19:06,808 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-28 13:19:06,809 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-28 13:19:06,810 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-28 13:19:06,810 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-28 13:19:06,810 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-28 13:19:06,811 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-28 13:19:06,812 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-28 13:19:06,812 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-28 13:19:06,813 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-28 13:19:06,814 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-28 13:19:06,816 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-28 13:19:06,817 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-28 13:19:06,817 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-28 13:19:06,818 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-28 13:19:06,820 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-28 13:19:06,820 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-28 13:19:06,820 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-28 13:19:06,821 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-28 13:19:06,821 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-28 13:19:06,822 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-28 13:19:06,822 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-28 13:19:06,823 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-28 13:19:06,823 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-28 13:19:06,824 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-28 13:19:06,824 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-28 13:19:06,824 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-28 13:19:06,825 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-28 13:19:06,825 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-28 13:19:06,825 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_893b0e6a-06a6-4c21-94cc-af71977319fa/bin-2019/uautomizer/config/svcomp-Overflow-64bit-Automizer_Default.epf [2018-11-28 13:19:06,835 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-28 13:19:06,836 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-28 13:19:06,836 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-28 13:19:06,836 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-28 13:19:06,837 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-28 13:19:06,837 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-28 13:19:06,837 INFO L133 SettingsManager]: * Use SBE=true [2018-11-28 13:19:06,837 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-28 13:19:06,837 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-11-28 13:19:06,837 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-28 13:19:06,837 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-28 13:19:06,838 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-28 13:19:06,838 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-28 13:19:06,838 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-28 13:19:06,838 INFO L133 SettingsManager]: * Check absence of signed integer overflows=true [2018-11-28 13:19:06,838 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-28 13:19:06,838 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-28 13:19:06,838 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-28 13:19:06,838 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-28 13:19:06,838 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-28 13:19:06,839 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-28 13:19:06,839 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-28 13:19:06,839 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-28 13:19:06,839 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-28 13:19:06,839 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-28 13:19:06,839 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-28 13:19:06,839 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-28 13:19:06,839 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-28 13:19:06,839 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-28 13:19:06,839 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_893b0e6a-06a6-4c21-94cc-af71977319fa/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 -> c27ad91a5bec233234e07a14bfd5505e082df4cd [2018-11-28 13:19:06,861 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-28 13:19:06,869 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-28 13:19:06,871 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-28 13:19:06,871 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-28 13:19:06,872 INFO L276 PluginConnector]: CDTParser initialized [2018-11-28 13:19:06,872 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_893b0e6a-06a6-4c21-94cc-af71977319fa/bin-2019/uautomizer/../../sv-benchmarks/c/termination-crafted/MutualRecursion_1a_true-no-overflow_false-termination_true-valid-memsafety.c [2018-11-28 13:19:06,909 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_893b0e6a-06a6-4c21-94cc-af71977319fa/bin-2019/uautomizer/data/d51d2f517/9e7dd47a4a964a98b825edf4f6d6b085/FLAGf7f7a9bfa [2018-11-28 13:19:07,251 INFO L307 CDTParser]: Found 1 translation units. [2018-11-28 13:19:07,252 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_893b0e6a-06a6-4c21-94cc-af71977319fa/sv-benchmarks/c/termination-crafted/MutualRecursion_1a_true-no-overflow_false-termination_true-valid-memsafety.c [2018-11-28 13:19:07,257 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_893b0e6a-06a6-4c21-94cc-af71977319fa/bin-2019/uautomizer/data/d51d2f517/9e7dd47a4a964a98b825edf4f6d6b085/FLAGf7f7a9bfa [2018-11-28 13:19:07,682 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_893b0e6a-06a6-4c21-94cc-af71977319fa/bin-2019/uautomizer/data/d51d2f517/9e7dd47a4a964a98b825edf4f6d6b085 [2018-11-28 13:19:07,685 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-28 13:19:07,686 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-28 13:19:07,687 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-28 13:19:07,687 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-28 13:19:07,689 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-28 13:19:07,690 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 01:19:07" (1/1) ... [2018-11-28 13:19:07,691 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@61e86348 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 01:19:07, skipping insertion in model container [2018-11-28 13:19:07,691 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 01:19:07" (1/1) ... [2018-11-28 13:19:07,696 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-28 13:19:07,706 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-28 13:19:07,801 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 13:19:07,804 INFO L191 MainTranslator]: Completed pre-run [2018-11-28 13:19:07,813 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 13:19:07,822 INFO L195 MainTranslator]: Completed translation [2018-11-28 13:19:07,822 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 01:19:07 WrapperNode [2018-11-28 13:19:07,822 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-28 13:19:07,822 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-28 13:19:07,822 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-28 13:19:07,822 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-28 13:19:07,828 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 01:19:07" (1/1) ... [2018-11-28 13:19:07,831 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 01:19:07" (1/1) ... [2018-11-28 13:19:07,834 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-28 13:19:07,835 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-28 13:19:07,835 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-28 13:19:07,835 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-28 13:19:07,840 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 01:19:07" (1/1) ... [2018-11-28 13:19:07,840 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 01:19:07" (1/1) ... [2018-11-28 13:19:07,841 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 01:19:07" (1/1) ... [2018-11-28 13:19:07,841 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 01:19:07" (1/1) ... [2018-11-28 13:19:07,843 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 01:19:07" (1/1) ... [2018-11-28 13:19:07,844 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 01:19:07" (1/1) ... [2018-11-28 13:19:07,844 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 01:19:07" (1/1) ... [2018-11-28 13:19:07,845 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-28 13:19:07,846 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-28 13:19:07,846 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-28 13:19:07,846 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-28 13:19:07,846 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 01:19:07" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_893b0e6a-06a6-4c21-94cc-af71977319fa/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 13:19:07,916 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-28 13:19:07,916 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-28 13:19:07,916 INFO L130 BoogieDeclarations]: Found specification of procedure f [2018-11-28 13:19:07,916 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2018-11-28 13:19:07,916 INFO L130 BoogieDeclarations]: Found specification of procedure g [2018-11-28 13:19:07,916 INFO L138 BoogieDeclarations]: Found implementation of procedure g [2018-11-28 13:19:07,916 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-28 13:19:07,916 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-28 13:19:07,916 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-28 13:19:07,916 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-28 13:19:08,034 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-28 13:19:08,034 INFO L280 CfgBuilder]: Removed 0 assue(true) statements. [2018-11-28 13:19:08,035 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 01:19:08 BoogieIcfgContainer [2018-11-28 13:19:08,035 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-28 13:19:08,035 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-28 13:19:08,035 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-28 13:19:08,038 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-28 13:19:08,038 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 01:19:07" (1/3) ... [2018-11-28 13:19:08,039 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@76d6ba93 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 01:19:08, skipping insertion in model container [2018-11-28 13:19:08,039 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 01:19:07" (2/3) ... [2018-11-28 13:19:08,039 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@76d6ba93 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 01:19:08, skipping insertion in model container [2018-11-28 13:19:08,039 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 01:19:08" (3/3) ... [2018-11-28 13:19:08,041 INFO L112 eAbstractionObserver]: Analyzing ICFG MutualRecursion_1a_true-no-overflow_false-termination_true-valid-memsafety.c [2018-11-28 13:19:08,046 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-28 13:19:08,051 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 10 error locations. [2018-11-28 13:19:08,060 INFO L257 AbstractCegarLoop]: Starting to check reachability of 10 error locations. [2018-11-28 13:19:08,081 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-28 13:19:08,081 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-28 13:19:08,081 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-28 13:19:08,082 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-28 13:19:08,082 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-28 13:19:08,082 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-28 13:19:08,082 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-28 13:19:08,082 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-28 13:19:08,082 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-28 13:19:08,098 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states. [2018-11-28 13:19:08,102 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-11-28 13:19:08,102 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 13:19:08,102 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 13:19:08,105 INFO L423 AbstractCegarLoop]: === Iteration 1 === [fErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr2ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-28 13:19:08,109 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 13:19:08,109 INFO L82 PathProgramCache]: Analyzing trace with hash -1878681222, now seen corresponding path program 1 times [2018-11-28 13:19:08,110 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 13:19:08,110 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 13:19:08,140 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:19:08,141 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 13:19:08,141 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:19:08,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 13:19:08,231 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 13:19:08,233 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 13:19:08,233 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-28 13:19:08,236 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-28 13:19:08,247 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-28 13:19:08,248 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-28 13:19:08,250 INFO L87 Difference]: Start difference. First operand 47 states. Second operand 5 states. [2018-11-28 13:19:08,345 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 13:19:08,345 INFO L93 Difference]: Finished difference Result 69 states and 76 transitions. [2018-11-28 13:19:08,346 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-28 13:19:08,346 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 9 [2018-11-28 13:19:08,347 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 13:19:08,354 INFO L225 Difference]: With dead ends: 69 [2018-11-28 13:19:08,354 INFO L226 Difference]: Without dead ends: 60 [2018-11-28 13:19:08,357 INFO L631 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 [2018-11-28 13:19:08,368 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2018-11-28 13:19:08,386 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 54. [2018-11-28 13:19:08,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54 states. [2018-11-28 13:19:08,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 63 transitions. [2018-11-28 13:19:08,388 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 63 transitions. Word has length 9 [2018-11-28 13:19:08,389 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 13:19:08,389 INFO L480 AbstractCegarLoop]: Abstraction has 54 states and 63 transitions. [2018-11-28 13:19:08,389 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-28 13:19:08,389 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 63 transitions. [2018-11-28 13:19:08,389 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-11-28 13:19:08,389 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 13:19:08,389 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 13:19:08,390 INFO L423 AbstractCegarLoop]: === Iteration 2 === [fErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr2ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-28 13:19:08,390 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 13:19:08,390 INFO L82 PathProgramCache]: Analyzing trace with hash 1890424319, now seen corresponding path program 1 times [2018-11-28 13:19:08,390 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 13:19:08,391 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 13:19:08,391 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:19:08,392 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 13:19:08,392 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:19:08,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 13:19:08,420 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 13:19:08,420 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 13:19:08,420 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-28 13:19:08,421 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-28 13:19:08,421 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-28 13:19:08,422 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-28 13:19:08,422 INFO L87 Difference]: Start difference. First operand 54 states and 63 transitions. Second operand 3 states. [2018-11-28 13:19:08,452 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 13:19:08,452 INFO L93 Difference]: Finished difference Result 56 states and 66 transitions. [2018-11-28 13:19:08,452 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-28 13:19:08,452 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2018-11-28 13:19:08,453 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 13:19:08,453 INFO L225 Difference]: With dead ends: 56 [2018-11-28 13:19:08,453 INFO L226 Difference]: Without dead ends: 54 [2018-11-28 13:19:08,454 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 13:19:08,454 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2018-11-28 13:19:08,458 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 52. [2018-11-28 13:19:08,458 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 52 states. [2018-11-28 13:19:08,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 59 transitions. [2018-11-28 13:19:08,459 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 59 transitions. Word has length 10 [2018-11-28 13:19:08,459 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 13:19:08,459 INFO L480 AbstractCegarLoop]: Abstraction has 52 states and 59 transitions. [2018-11-28 13:19:08,459 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-28 13:19:08,459 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 59 transitions. [2018-11-28 13:19:08,459 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-11-28 13:19:08,460 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 13:19:08,460 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 13:19:08,460 INFO L423 AbstractCegarLoop]: === Iteration 3 === [fErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr2ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-28 13:19:08,460 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 13:19:08,460 INFO L82 PathProgramCache]: Analyzing trace with hash -1814880932, now seen corresponding path program 1 times [2018-11-28 13:19:08,460 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 13:19:08,460 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 13:19:08,461 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:19:08,461 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 13:19:08,461 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:19:08,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 13:19:08,504 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 13:19:08,504 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 13:19:08,504 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-28 13:19:08,504 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-28 13:19:08,504 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-28 13:19:08,505 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2018-11-28 13:19:08,505 INFO L87 Difference]: Start difference. First operand 52 states and 59 transitions. Second operand 7 states. [2018-11-28 13:19:08,639 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 13:19:08,639 INFO L93 Difference]: Finished difference Result 71 states and 81 transitions. [2018-11-28 13:19:08,639 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-28 13:19:08,640 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 17 [2018-11-28 13:19:08,640 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 13:19:08,641 INFO L225 Difference]: With dead ends: 71 [2018-11-28 13:19:08,641 INFO L226 Difference]: Without dead ends: 69 [2018-11-28 13:19:08,641 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2018-11-28 13:19:08,641 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states. [2018-11-28 13:19:08,647 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 65. [2018-11-28 13:19:08,648 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 65 states. [2018-11-28 13:19:08,648 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 76 transitions. [2018-11-28 13:19:08,649 INFO L78 Accepts]: Start accepts. Automaton has 65 states and 76 transitions. Word has length 17 [2018-11-28 13:19:08,649 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 13:19:08,649 INFO L480 AbstractCegarLoop]: Abstraction has 65 states and 76 transitions. [2018-11-28 13:19:08,649 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-28 13:19:08,649 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 76 transitions. [2018-11-28 13:19:08,649 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2018-11-28 13:19:08,650 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 13:19:08,650 INFO L402 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 13:19:08,650 INFO L423 AbstractCegarLoop]: === Iteration 4 === [fErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr2ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-28 13:19:08,650 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 13:19:08,650 INFO L82 PathProgramCache]: Analyzing trace with hash -2069922715, now seen corresponding path program 1 times [2018-11-28 13:19:08,650 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 13:19:08,651 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 13:19:08,651 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:19:08,651 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 13:19:08,652 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:19:08,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 13:19:08,678 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-11-28 13:19:08,678 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 13:19:08,678 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-28 13:19:08,678 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-28 13:19:08,678 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-28 13:19:08,678 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-28 13:19:08,679 INFO L87 Difference]: Start difference. First operand 65 states and 76 transitions. Second operand 5 states. [2018-11-28 13:19:08,718 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 13:19:08,718 INFO L93 Difference]: Finished difference Result 81 states and 100 transitions. [2018-11-28 13:19:08,718 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-28 13:19:08,718 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 20 [2018-11-28 13:19:08,718 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 13:19:08,719 INFO L225 Difference]: With dead ends: 81 [2018-11-28 13:19:08,719 INFO L226 Difference]: Without dead ends: 80 [2018-11-28 13:19:08,719 INFO L631 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 [2018-11-28 13:19:08,720 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2018-11-28 13:19:08,725 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 69. [2018-11-28 13:19:08,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 69 states. [2018-11-28 13:19:08,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 80 transitions. [2018-11-28 13:19:08,727 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 80 transitions. Word has length 20 [2018-11-28 13:19:08,727 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 13:19:08,727 INFO L480 AbstractCegarLoop]: Abstraction has 69 states and 80 transitions. [2018-11-28 13:19:08,727 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-28 13:19:08,727 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 80 transitions. [2018-11-28 13:19:08,728 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-11-28 13:19:08,728 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 13:19:08,728 INFO L402 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 13:19:08,728 INFO L423 AbstractCegarLoop]: === Iteration 5 === [fErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr2ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-28 13:19:08,728 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 13:19:08,728 INFO L82 PathProgramCache]: Analyzing trace with hash 256905316, now seen corresponding path program 1 times [2018-11-28 13:19:08,729 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 13:19:08,729 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 13:19:08,729 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:19:08,729 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 13:19:08,730 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:19:08,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 13:19:08,747 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-11-28 13:19:08,748 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 13:19:08,748 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-28 13:19:08,748 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-28 13:19:08,748 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-28 13:19:08,748 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-28 13:19:08,748 INFO L87 Difference]: Start difference. First operand 69 states and 80 transitions. Second operand 3 states. [2018-11-28 13:19:08,759 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 13:19:08,759 INFO L93 Difference]: Finished difference Result 71 states and 87 transitions. [2018-11-28 13:19:08,760 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-28 13:19:08,760 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 21 [2018-11-28 13:19:08,760 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 13:19:08,761 INFO L225 Difference]: With dead ends: 71 [2018-11-28 13:19:08,761 INFO L226 Difference]: Without dead ends: 70 [2018-11-28 13:19:08,761 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 13:19:08,762 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states. [2018-11-28 13:19:08,768 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 68. [2018-11-28 13:19:08,768 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 68 states. [2018-11-28 13:19:08,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 79 transitions. [2018-11-28 13:19:08,769 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 79 transitions. Word has length 21 [2018-11-28 13:19:08,769 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 13:19:08,770 INFO L480 AbstractCegarLoop]: Abstraction has 68 states and 79 transitions. [2018-11-28 13:19:08,770 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-28 13:19:08,770 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 79 transitions. [2018-11-28 13:19:08,770 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2018-11-28 13:19:08,771 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 13:19:08,771 INFO L402 BasicCegarLoop]: trace histogram [3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 13:19:08,771 INFO L423 AbstractCegarLoop]: === Iteration 6 === [fErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr2ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-28 13:19:08,771 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 13:19:08,772 INFO L82 PathProgramCache]: Analyzing trace with hash -831628633, now seen corresponding path program 1 times [2018-11-28 13:19:08,772 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 13:19:08,772 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 13:19:08,772 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:19:08,773 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 13:19:08,773 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:19:08,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 13:19:08,813 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-11-28 13:19:08,814 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 13:19:08,814 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-28 13:19:08,814 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-28 13:19:08,814 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-28 13:19:08,815 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-28 13:19:08,815 INFO L87 Difference]: Start difference. First operand 68 states and 79 transitions. Second operand 5 states. [2018-11-28 13:19:08,868 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 13:19:08,868 INFO L93 Difference]: Finished difference Result 127 states and 161 transitions. [2018-11-28 13:19:08,868 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-28 13:19:08,868 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 25 [2018-11-28 13:19:08,868 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 13:19:08,869 INFO L225 Difference]: With dead ends: 127 [2018-11-28 13:19:08,869 INFO L226 Difference]: Without dead ends: 66 [2018-11-28 13:19:08,870 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-11-28 13:19:08,870 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2018-11-28 13:19:08,873 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 64. [2018-11-28 13:19:08,873 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 64 states. [2018-11-28 13:19:08,874 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 73 transitions. [2018-11-28 13:19:08,874 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 73 transitions. Word has length 25 [2018-11-28 13:19:08,874 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 13:19:08,874 INFO L480 AbstractCegarLoop]: Abstraction has 64 states and 73 transitions. [2018-11-28 13:19:08,874 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-28 13:19:08,874 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 73 transitions. [2018-11-28 13:19:08,875 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2018-11-28 13:19:08,875 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 13:19:08,875 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 13:19:08,875 INFO L423 AbstractCegarLoop]: === Iteration 7 === [fErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr2ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-28 13:19:08,876 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 13:19:08,876 INFO L82 PathProgramCache]: Analyzing trace with hash 1630439354, now seen corresponding path program 1 times [2018-11-28 13:19:08,876 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 13:19:08,876 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 13:19:08,876 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:19:08,876 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 13:19:08,877 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:19:08,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 13:19:08,902 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-11-28 13:19:08,902 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 13:19:08,902 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-28 13:19:08,902 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-28 13:19:08,902 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-28 13:19:08,902 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-28 13:19:08,902 INFO L87 Difference]: Start difference. First operand 64 states and 73 transitions. Second operand 5 states. [2018-11-28 13:19:08,952 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 13:19:08,952 INFO L93 Difference]: Finished difference Result 76 states and 92 transitions. [2018-11-28 13:19:08,953 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-28 13:19:08,953 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 25 [2018-11-28 13:19:08,953 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 13:19:08,953 INFO L225 Difference]: With dead ends: 76 [2018-11-28 13:19:08,953 INFO L226 Difference]: Without dead ends: 75 [2018-11-28 13:19:08,954 INFO L631 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 [2018-11-28 13:19:08,954 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states. [2018-11-28 13:19:08,959 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 72. [2018-11-28 13:19:08,959 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 72 states. [2018-11-28 13:19:08,960 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 86 transitions. [2018-11-28 13:19:08,960 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 86 transitions. Word has length 25 [2018-11-28 13:19:08,960 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 13:19:08,960 INFO L480 AbstractCegarLoop]: Abstraction has 72 states and 86 transitions. [2018-11-28 13:19:08,960 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-28 13:19:08,961 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 86 transitions. [2018-11-28 13:19:08,961 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2018-11-28 13:19:08,961 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 13:19:08,961 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 13:19:08,961 INFO L423 AbstractCegarLoop]: === Iteration 8 === [fErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr2ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-28 13:19:08,962 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 13:19:08,962 INFO L82 PathProgramCache]: Analyzing trace with hash -995987509, now seen corresponding path program 1 times [2018-11-28 13:19:08,962 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 13:19:08,962 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 13:19:08,963 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:19:08,963 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 13:19:08,963 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:19:08,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 13:19:09,000 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-11-28 13:19:09,000 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 13:19:09,000 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-28 13:19:09,001 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-28 13:19:09,001 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-28 13:19:09,001 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-28 13:19:09,001 INFO L87 Difference]: Start difference. First operand 72 states and 86 transitions. Second operand 5 states. [2018-11-28 13:19:09,039 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 13:19:09,039 INFO L93 Difference]: Finished difference Result 79 states and 94 transitions. [2018-11-28 13:19:09,040 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-28 13:19:09,040 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 26 [2018-11-28 13:19:09,040 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 13:19:09,040 INFO L225 Difference]: With dead ends: 79 [2018-11-28 13:19:09,041 INFO L226 Difference]: Without dead ends: 75 [2018-11-28 13:19:09,041 INFO L631 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 [2018-11-28 13:19:09,041 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states. [2018-11-28 13:19:09,046 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 72. [2018-11-28 13:19:09,046 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 72 states. [2018-11-28 13:19:09,047 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 85 transitions. [2018-11-28 13:19:09,047 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 85 transitions. Word has length 26 [2018-11-28 13:19:09,047 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 13:19:09,047 INFO L480 AbstractCegarLoop]: Abstraction has 72 states and 85 transitions. [2018-11-28 13:19:09,047 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-28 13:19:09,047 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 85 transitions. [2018-11-28 13:19:09,048 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2018-11-28 13:19:09,048 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 13:19:09,048 INFO L402 BasicCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 13:19:09,048 INFO L423 AbstractCegarLoop]: === Iteration 9 === [fErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr2ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-28 13:19:09,049 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 13:19:09,049 INFO L82 PathProgramCache]: Analyzing trace with hash -1986621902, now seen corresponding path program 1 times [2018-11-28 13:19:09,049 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 13:19:09,049 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 13:19:09,050 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:19:09,050 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 13:19:09,050 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:19:09,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 13:19:09,111 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2018-11-28 13:19:09,111 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 13:19:09,111 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-28 13:19:09,111 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-28 13:19:09,112 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-28 13:19:09,112 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-11-28 13:19:09,112 INFO L87 Difference]: Start difference. First operand 72 states and 85 transitions. Second operand 7 states. [2018-11-28 13:19:09,207 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 13:19:09,207 INFO L93 Difference]: Finished difference Result 111 states and 142 transitions. [2018-11-28 13:19:09,207 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-28 13:19:09,208 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 46 [2018-11-28 13:19:09,208 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 13:19:09,209 INFO L225 Difference]: With dead ends: 111 [2018-11-28 13:19:09,209 INFO L226 Difference]: Without dead ends: 110 [2018-11-28 13:19:09,209 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2018-11-28 13:19:09,209 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110 states. [2018-11-28 13:19:09,217 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110 to 83. [2018-11-28 13:19:09,217 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 83 states. [2018-11-28 13:19:09,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 83 states and 100 transitions. [2018-11-28 13:19:09,218 INFO L78 Accepts]: Start accepts. Automaton has 83 states and 100 transitions. Word has length 46 [2018-11-28 13:19:09,218 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 13:19:09,218 INFO L480 AbstractCegarLoop]: Abstraction has 83 states and 100 transitions. [2018-11-28 13:19:09,219 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-28 13:19:09,219 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 100 transitions. [2018-11-28 13:19:09,220 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2018-11-28 13:19:09,220 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 13:19:09,220 INFO L402 BasicCegarLoop]: trace histogram [5, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 13:19:09,220 INFO L423 AbstractCegarLoop]: === Iteration 10 === [fErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr2ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-28 13:19:09,220 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 13:19:09,221 INFO L82 PathProgramCache]: Analyzing trace with hash 2007077143, now seen corresponding path program 1 times [2018-11-28 13:19:09,221 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 13:19:09,221 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 13:19:09,222 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:19:09,222 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 13:19:09,222 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:19:09,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 13:19:09,269 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2018-11-28 13:19:09,269 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 13:19:09,269 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-28 13:19:09,270 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-28 13:19:09,270 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-28 13:19:09,270 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-28 13:19:09,270 INFO L87 Difference]: Start difference. First operand 83 states and 100 transitions. Second operand 5 states. [2018-11-28 13:19:09,304 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 13:19:09,305 INFO L93 Difference]: Finished difference Result 85 states and 100 transitions. [2018-11-28 13:19:09,305 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-28 13:19:09,305 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 59 [2018-11-28 13:19:09,305 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 13:19:09,306 INFO L225 Difference]: With dead ends: 85 [2018-11-28 13:19:09,306 INFO L226 Difference]: Without dead ends: 84 [2018-11-28 13:19:09,306 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-11-28 13:19:09,307 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84 states. [2018-11-28 13:19:09,313 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 82. [2018-11-28 13:19:09,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 82 states. [2018-11-28 13:19:09,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 99 transitions. [2018-11-28 13:19:09,314 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 99 transitions. Word has length 59 [2018-11-28 13:19:09,314 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 13:19:09,314 INFO L480 AbstractCegarLoop]: Abstraction has 82 states and 99 transitions. [2018-11-28 13:19:09,314 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-28 13:19:09,315 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 99 transitions. [2018-11-28 13:19:09,316 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2018-11-28 13:19:09,316 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 13:19:09,316 INFO L402 BasicCegarLoop]: trace histogram [6, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 13:19:09,317 INFO L423 AbstractCegarLoop]: === Iteration 11 === [fErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr2ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-28 13:19:09,317 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 13:19:09,317 INFO L82 PathProgramCache]: Analyzing trace with hash 187335224, now seen corresponding path program 1 times [2018-11-28 13:19:09,317 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 13:19:09,317 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 13:19:09,318 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:19:09,318 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 13:19:09,318 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:19:09,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 13:19:09,384 INFO L134 CoverageAnalysis]: Checked inductivity of 82 backedges. 30 proven. 3 refuted. 0 times theorem prover too weak. 49 trivial. 0 not checked. [2018-11-28 13:19:09,384 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-28 13:19:09,384 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_893b0e6a-06a6-4c21-94cc-af71977319fa/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 13:19:09,396 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 13:19:09,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 13:19:09,429 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 13:19:09,475 INFO L134 CoverageAnalysis]: Checked inductivity of 82 backedges. 30 proven. 3 refuted. 0 times theorem prover too weak. 49 trivial. 0 not checked. [2018-11-28 13:19:09,490 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-28 13:19:09,490 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 7 [2018-11-28 13:19:09,491 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-28 13:19:09,491 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-28 13:19:09,491 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-11-28 13:19:09,492 INFO L87 Difference]: Start difference. First operand 82 states and 99 transitions. Second operand 7 states. [2018-11-28 13:19:09,556 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 13:19:09,557 INFO L93 Difference]: Finished difference Result 123 states and 152 transitions. [2018-11-28 13:19:09,559 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-28 13:19:09,559 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 72 [2018-11-28 13:19:09,559 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 13:19:09,559 INFO L225 Difference]: With dead ends: 123 [2018-11-28 13:19:09,560 INFO L226 Difference]: Without dead ends: 0 [2018-11-28 13:19:09,560 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 73 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2018-11-28 13:19:09,561 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-28 13:19:09,561 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-28 13:19:09,561 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-28 13:19:09,561 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-28 13:19:09,561 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 72 [2018-11-28 13:19:09,562 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 13:19:09,562 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-28 13:19:09,562 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-28 13:19:09,562 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-28 13:19:09,562 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-28 13:19:09,565 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-28 13:19:09,719 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2018-11-28 13:19:09,719 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-11-28 13:19:09,719 INFO L448 ceAbstractionStarter]: For program point fErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 14) no Hoare annotation was computed. [2018-11-28 13:19:09,719 INFO L448 ceAbstractionStarter]: For program point fErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 14) no Hoare annotation was computed. [2018-11-28 13:19:09,720 INFO L448 ceAbstractionStarter]: For program point fErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 14) no Hoare annotation was computed. [2018-11-28 13:19:09,720 INFO L448 ceAbstractionStarter]: For program point fFINAL(lines 11 15) no Hoare annotation was computed. [2018-11-28 13:19:09,720 INFO L448 ceAbstractionStarter]: For program point fErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 14) no Hoare annotation was computed. [2018-11-28 13:19:09,720 INFO L444 ceAbstractionStarter]: At program point L14(line 14) the Hoare annotation is: (or (and (<= |f_#in~x| f_~x) (<= f_~x 2147483647) (<= 1 f_~x)) (< 2147483647 |f_#in~x|)) [2018-11-28 13:19:09,720 INFO L448 ceAbstractionStarter]: For program point L13(lines 13 14) no Hoare annotation was computed. [2018-11-28 13:19:09,720 INFO L448 ceAbstractionStarter]: For program point L14-1(line 14) no Hoare annotation was computed. [2018-11-28 13:19:09,720 INFO L448 ceAbstractionStarter]: For program point L14-2(line 14) no Hoare annotation was computed. [2018-11-28 13:19:09,720 INFO L448 ceAbstractionStarter]: For program point L14-3(line 14) no Hoare annotation was computed. [2018-11-28 13:19:09,721 INFO L444 ceAbstractionStarter]: At program point L14-4(line 14) the Hoare annotation is: (or (and (<= f_~x 2147483646) (<= |f_#in~x| f_~x) (<= 1 f_~x)) (< 2147483647 |f_#in~x|)) [2018-11-28 13:19:09,721 INFO L448 ceAbstractionStarter]: For program point L14-5(line 14) no Hoare annotation was computed. [2018-11-28 13:19:09,721 INFO L448 ceAbstractionStarter]: For program point L14-6(line 14) no Hoare annotation was computed. [2018-11-28 13:19:09,721 INFO L448 ceAbstractionStarter]: For program point fEXIT(lines 11 15) no Hoare annotation was computed. [2018-11-28 13:19:09,721 INFO L448 ceAbstractionStarter]: For program point L14-7(line 14) no Hoare annotation was computed. [2018-11-28 13:19:09,721 INFO L451 ceAbstractionStarter]: At program point fENTRY(lines 11 15) the Hoare annotation is: true [2018-11-28 13:19:09,721 INFO L448 ceAbstractionStarter]: For program point gErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 20) no Hoare annotation was computed. [2018-11-28 13:19:09,721 INFO L448 ceAbstractionStarter]: For program point gErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 20) no Hoare annotation was computed. [2018-11-28 13:19:09,722 INFO L448 ceAbstractionStarter]: For program point gErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 20) no Hoare annotation was computed. [2018-11-28 13:19:09,722 INFO L448 ceAbstractionStarter]: For program point gErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 20) no Hoare annotation was computed. [2018-11-28 13:19:09,722 INFO L448 ceAbstractionStarter]: For program point gFINAL(lines 17 21) no Hoare annotation was computed. [2018-11-28 13:19:09,722 INFO L448 ceAbstractionStarter]: For program point L20(line 20) no Hoare annotation was computed. [2018-11-28 13:19:09,722 INFO L448 ceAbstractionStarter]: For program point L19(lines 19 20) no Hoare annotation was computed. [2018-11-28 13:19:09,722 INFO L448 ceAbstractionStarter]: For program point L20-1(line 20) no Hoare annotation was computed. [2018-11-28 13:19:09,722 INFO L444 ceAbstractionStarter]: At program point L20-2(line 20) the Hoare annotation is: (or (and (<= 1 g_~x) (<= g_~x 2147483647) (<= |g_#in~x| g_~x)) (< 2147483647 |g_#in~x|)) [2018-11-28 13:19:09,722 INFO L448 ceAbstractionStarter]: For program point L20-3(line 20) no Hoare annotation was computed. [2018-11-28 13:19:09,722 INFO L448 ceAbstractionStarter]: For program point L20-4(line 20) no Hoare annotation was computed. [2018-11-28 13:19:09,722 INFO L448 ceAbstractionStarter]: For program point L20-5(line 20) no Hoare annotation was computed. [2018-11-28 13:19:09,722 INFO L444 ceAbstractionStarter]: At program point L20-6(line 20) the Hoare annotation is: (or (and (<= 1 g_~x) (<= 0 (+ |g_#t~ret2| 2147483648)) (<= g_~x 2147483647) (<= |g_#t~ret2| 2147483647) (<= |g_#in~x| 1)) (< 2147483647 |g_#in~x|)) [2018-11-28 13:19:09,722 INFO L448 ceAbstractionStarter]: For program point L20-7(line 20) no Hoare annotation was computed. [2018-11-28 13:19:09,722 INFO L448 ceAbstractionStarter]: For program point L20-8(line 20) no Hoare annotation was computed. [2018-11-28 13:19:09,722 INFO L448 ceAbstractionStarter]: For program point L20-9(line 20) no Hoare annotation was computed. [2018-11-28 13:19:09,722 INFO L448 ceAbstractionStarter]: For program point gEXIT(lines 17 21) no Hoare annotation was computed. [2018-11-28 13:19:09,722 INFO L448 ceAbstractionStarter]: For program point gErr5ASSERT_VIOLATIONINTEGER_OVERFLOW(line 20) no Hoare annotation was computed. [2018-11-28 13:19:09,722 INFO L451 ceAbstractionStarter]: At program point gENTRY(lines 17 21) the Hoare annotation is: true [2018-11-28 13:19:09,723 INFO L448 ceAbstractionStarter]: For program point gErr4ASSERT_VIOLATIONINTEGER_OVERFLOW(line 20) no Hoare annotation was computed. [2018-11-28 13:19:09,723 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-11-28 13:19:09,723 INFO L451 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-11-28 13:19:09,723 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-11-28 13:19:09,723 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-11-28 13:19:09,723 INFO L451 ceAbstractionStarter]: At program point mainENTRY(lines 24 27) the Hoare annotation is: true [2018-11-28 13:19:09,723 INFO L448 ceAbstractionStarter]: For program point mainFINAL(lines 24 27) no Hoare annotation was computed. [2018-11-28 13:19:09,723 INFO L444 ceAbstractionStarter]: At program point L26(line 26) the Hoare annotation is: (<= main_~x~0 2147483647) [2018-11-28 13:19:09,723 INFO L448 ceAbstractionStarter]: For program point L26-1(line 26) no Hoare annotation was computed. [2018-11-28 13:19:09,723 INFO L448 ceAbstractionStarter]: For program point mainEXIT(lines 24 27) no Hoare annotation was computed. [2018-11-28 13:19:09,726 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 01:19:09 BoogieIcfgContainer [2018-11-28 13:19:09,726 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-28 13:19:09,726 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-28 13:19:09,726 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-28 13:19:09,726 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-28 13:19:09,727 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 01:19:08" (3/4) ... [2018-11-28 13:19:09,729 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-28 13:19:09,733 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-11-28 13:19:09,734 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure f [2018-11-28 13:19:09,734 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure g [2018-11-28 13:19:09,734 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-11-28 13:19:09,737 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2018-11-28 13:19:09,738 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2018-11-28 13:19:09,738 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-11-28 13:19:09,774 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_893b0e6a-06a6-4c21-94cc-af71977319fa/bin-2019/uautomizer/witness.graphml [2018-11-28 13:19:09,774 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-28 13:19:09,774 INFO L168 Benchmark]: Toolchain (without parser) took 2089.09 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 134.7 MB). Free memory was 953.3 MB in the beginning and 1.1 GB in the end (delta: -168.8 MB). There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 13:19:09,775 INFO L168 Benchmark]: CDTParser took 0.11 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 13:19:09,776 INFO L168 Benchmark]: CACSL2BoogieTranslator took 135.29 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 13:19:09,776 INFO L168 Benchmark]: Boogie Procedure Inliner took 12.14 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 13:19:09,776 INFO L168 Benchmark]: Boogie Preprocessor took 10.82 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 13:19:09,776 INFO L168 Benchmark]: RCFGBuilder took 189.15 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 134.7 MB). Free memory was 942.6 MB in the beginning and 1.1 GB in the end (delta: -170.4 MB). Peak memory consumption was 15.6 MB. Max. memory is 11.5 GB. [2018-11-28 13:19:09,777 INFO L168 Benchmark]: TraceAbstraction took 1690.47 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: -12.5 MB). Peak memory consumption was 246.9 MB. Max. memory is 11.5 GB. [2018-11-28 13:19:09,777 INFO L168 Benchmark]: Witness Printer took 47.75 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 3.4 MB). Peak memory consumption was 3.4 MB. Max. memory is 11.5 GB. [2018-11-28 13:19:09,778 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11 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 135.29 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 12.14 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 10.82 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. * RCFGBuilder took 189.15 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 134.7 MB). Free memory was 942.6 MB in the beginning and 1.1 GB in the end (delta: -170.4 MB). Peak memory consumption was 15.6 MB. Max. memory is 11.5 GB. * TraceAbstraction took 1690.47 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: -12.5 MB). Peak memory consumption was 246.9 MB. Max. memory is 11.5 GB. * Witness Printer took 47.75 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 3.4 MB). Peak memory consumption was 3.4 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - 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: 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: 20]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 20]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 20]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 20]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 20]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 20]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - AllSpecificationsHoldResult: All specifications hold 10 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 47 locations, 10 error locations. SAFE Result, 1.6s OverallTime, 11 OverallIterations, 6 TraceHistogramMax, 0.6s AutomataDifference, 0.0s DeadEndRemovalTime, 0.1s HoareAnnotationTime, HoareTripleCheckerStatistics: 391 SDtfs, 271 SDslu, 920 SDs, 0 SdLazy, 470 SolverSat, 50 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 137 GetRequests, 87 SyntacticMatches, 1 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=83occurred in iteration=9, 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, 11 MinimizatonAttempts, 62 StatesRemovedByMinimization, 10 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 11 LocationsWithAnnotation, 77 PreInvPairs, 86 NumberOfFragments, 77 HoareAnnotationTreeSize, 77 FomulaSimplifications, 290 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 11 FomulaSimplificationsInter, 108 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 402 NumberOfCodeBlocks, 402 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 390 ConstructedInterpolants, 0 QuantifiedInterpolants, 28679 SizeOfPredicates, 3 NumberOfNonLiveVariables, 145 ConjunctsInSsa, 6 ConjunctsInUnsatCore, 12 InterpolantComputations, 10 PerfectInterpolantSequences, 265/271 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...