./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-crafted-lit/HeizmannHoenickeLeikePodelski-ATVA2013-Fig5_true-termination_true-no-overflow.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 0cd3be1d Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_07efaf75-af85-4f5d-b3e1-2c0201fff6f3/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_07efaf75-af85-4f5d-b3e1-2c0201fff6f3/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_07efaf75-af85-4f5d-b3e1-2c0201fff6f3/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_07efaf75-af85-4f5d-b3e1-2c0201fff6f3/bin-2019/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/termination-crafted-lit/HeizmannHoenickeLeikePodelski-ATVA2013-Fig5_true-termination_true-no-overflow.c -s /tmp/vcloud-vcloud-master/worker/working_dir_07efaf75-af85-4f5d-b3e1-2c0201fff6f3/bin-2019/uautomizer/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_07efaf75-af85-4f5d-b3e1-2c0201fff6f3/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 d38e7f8e829b6fb879eed3e9eda17afd63dbb323 ................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 12:19:07,134 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-28 12:19:07,135 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-28 12:19:07,143 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-28 12:19:07,144 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-28 12:19:07,144 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-28 12:19:07,145 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-28 12:19:07,146 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-28 12:19:07,148 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-28 12:19:07,148 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-28 12:19:07,149 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-28 12:19:07,149 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-28 12:19:07,150 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-28 12:19:07,150 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-28 12:19:07,151 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-28 12:19:07,151 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-28 12:19:07,152 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-28 12:19:07,153 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-28 12:19:07,154 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-28 12:19:07,155 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-28 12:19:07,157 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-28 12:19:07,158 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-28 12:19:07,159 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-28 12:19:07,159 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-28 12:19:07,160 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-28 12:19:07,160 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-28 12:19:07,161 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-28 12:19:07,161 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-28 12:19:07,162 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-28 12:19:07,163 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-28 12:19:07,163 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-28 12:19:07,164 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-28 12:19:07,164 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-28 12:19:07,164 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-28 12:19:07,164 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-28 12:19:07,165 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-28 12:19:07,165 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_07efaf75-af85-4f5d-b3e1-2c0201fff6f3/bin-2019/uautomizer/config/svcomp-Overflow-64bit-Automizer_Default.epf [2018-11-28 12:19:07,175 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-28 12:19:07,176 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-28 12:19:07,176 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-28 12:19:07,176 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-28 12:19:07,177 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-28 12:19:07,177 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-28 12:19:07,177 INFO L133 SettingsManager]: * Use SBE=true [2018-11-28 12:19:07,177 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-28 12:19:07,178 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-11-28 12:19:07,178 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-28 12:19:07,178 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-28 12:19:07,178 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-28 12:19:07,178 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-28 12:19:07,178 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-28 12:19:07,178 INFO L133 SettingsManager]: * Check absence of signed integer overflows=true [2018-11-28 12:19:07,178 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-28 12:19:07,179 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-28 12:19:07,179 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-28 12:19:07,179 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-28 12:19:07,179 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-28 12:19:07,179 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-28 12:19:07,180 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-28 12:19:07,180 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-28 12:19:07,180 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-28 12:19:07,180 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-28 12:19:07,180 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-28 12:19:07,180 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-28 12:19:07,180 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-28 12:19:07,181 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-28 12:19:07,181 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_07efaf75-af85-4f5d-b3e1-2c0201fff6f3/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 -> d38e7f8e829b6fb879eed3e9eda17afd63dbb323 [2018-11-28 12:19:07,201 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-28 12:19:07,209 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-28 12:19:07,211 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-28 12:19:07,212 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-28 12:19:07,212 INFO L276 PluginConnector]: CDTParser initialized [2018-11-28 12:19:07,213 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_07efaf75-af85-4f5d-b3e1-2c0201fff6f3/bin-2019/uautomizer/../../sv-benchmarks/c/termination-crafted-lit/HeizmannHoenickeLeikePodelski-ATVA2013-Fig5_true-termination_true-no-overflow.c [2018-11-28 12:19:07,254 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_07efaf75-af85-4f5d-b3e1-2c0201fff6f3/bin-2019/uautomizer/data/091e3a71d/0f72e8b8058948c6a5502d4683455ee4/FLAG971f8516f [2018-11-28 12:19:07,572 INFO L307 CDTParser]: Found 1 translation units. [2018-11-28 12:19:07,573 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_07efaf75-af85-4f5d-b3e1-2c0201fff6f3/sv-benchmarks/c/termination-crafted-lit/HeizmannHoenickeLeikePodelski-ATVA2013-Fig5_true-termination_true-no-overflow.c [2018-11-28 12:19:07,576 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_07efaf75-af85-4f5d-b3e1-2c0201fff6f3/bin-2019/uautomizer/data/091e3a71d/0f72e8b8058948c6a5502d4683455ee4/FLAG971f8516f [2018-11-28 12:19:07,587 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_07efaf75-af85-4f5d-b3e1-2c0201fff6f3/bin-2019/uautomizer/data/091e3a71d/0f72e8b8058948c6a5502d4683455ee4 [2018-11-28 12:19:07,589 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-28 12:19:07,590 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-28 12:19:07,591 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-28 12:19:07,591 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-28 12:19:07,594 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-28 12:19:07,595 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 12:19:07" (1/1) ... [2018-11-28 12:19:07,597 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7ee3dc7f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:19:07, skipping insertion in model container [2018-11-28 12:19:07,597 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 12:19:07" (1/1) ... [2018-11-28 12:19:07,602 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-28 12:19:07,611 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-28 12:19:07,706 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 12:19:07,708 INFO L191 MainTranslator]: Completed pre-run [2018-11-28 12:19:07,717 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 12:19:07,724 INFO L195 MainTranslator]: Completed translation [2018-11-28 12:19:07,724 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:19:07 WrapperNode [2018-11-28 12:19:07,724 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-28 12:19:07,725 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-28 12:19:07,725 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-28 12:19:07,725 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-28 12:19:07,730 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:19:07" (1/1) ... [2018-11-28 12:19:07,732 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:19:07" (1/1) ... [2018-11-28 12:19:07,736 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-28 12:19:07,736 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-28 12:19:07,736 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-28 12:19:07,736 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-28 12:19:07,741 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:19:07" (1/1) ... [2018-11-28 12:19:07,741 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:19:07" (1/1) ... [2018-11-28 12:19:07,742 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:19:07" (1/1) ... [2018-11-28 12:19:07,742 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:19:07" (1/1) ... [2018-11-28 12:19:07,743 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:19:07" (1/1) ... [2018-11-28 12:19:07,746 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:19:07" (1/1) ... [2018-11-28 12:19:07,747 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:19:07" (1/1) ... [2018-11-28 12:19:07,747 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-28 12:19:07,747 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-28 12:19:07,748 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-28 12:19:07,748 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-28 12:19:07,748 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:19:07" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_07efaf75-af85-4f5d-b3e1-2c0201fff6f3/bin-2019/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-28 12:19:07,823 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-28 12:19:07,823 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-28 12:19:07,824 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-28 12:19:07,824 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-28 12:19:07,824 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-28 12:19:07,824 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-28 12:19:07,915 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-28 12:19:07,915 INFO L280 CfgBuilder]: Removed 1 assue(true) statements. [2018-11-28 12:19:07,915 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 12:19:07 BoogieIcfgContainer [2018-11-28 12:19:07,915 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-28 12:19:07,915 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-28 12:19:07,916 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-28 12:19:07,917 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-28 12:19:07,917 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 12:19:07" (1/3) ... [2018-11-28 12:19:07,918 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@635a1b59 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 12:19:07, skipping insertion in model container [2018-11-28 12:19:07,918 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:19:07" (2/3) ... [2018-11-28 12:19:07,918 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@635a1b59 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 12:19:07, skipping insertion in model container [2018-11-28 12:19:07,918 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 12:19:07" (3/3) ... [2018-11-28 12:19:07,919 INFO L112 eAbstractionObserver]: Analyzing ICFG HeizmannHoenickeLeikePodelski-ATVA2013-Fig5_true-termination_true-no-overflow.c [2018-11-28 12:19:07,925 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-28 12:19:07,929 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 6 error locations. [2018-11-28 12:19:07,938 INFO L257 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2018-11-28 12:19:07,959 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-28 12:19:07,960 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-28 12:19:07,960 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-28 12:19:07,960 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-28 12:19:07,960 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-28 12:19:07,960 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-28 12:19:07,961 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-28 12:19:07,961 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-28 12:19:07,961 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-28 12:19:07,973 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states. [2018-11-28 12:19:07,977 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2018-11-28 12:19:07,977 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 12:19:07,977 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2018-11-28 12:19:07,979 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-28 12:19:07,984 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 12:19:07,984 INFO L82 PathProgramCache]: Analyzing trace with hash -778806590, now seen corresponding path program 1 times [2018-11-28 12:19:07,986 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 12:19:07,986 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 12:19:08,022 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:19:08,022 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 12:19:08,022 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:19:08,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 12:19:08,077 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 12:19:08,079 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 12:19:08,079 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-28 12:19:08,082 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-28 12:19:08,091 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-28 12:19:08,091 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-28 12:19:08,093 INFO L87 Difference]: Start difference. First operand 23 states. Second operand 3 states. [2018-11-28 12:19:08,147 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 12:19:08,147 INFO L93 Difference]: Finished difference Result 35 states and 38 transitions. [2018-11-28 12:19:08,147 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-28 12:19:08,148 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 7 [2018-11-28 12:19:08,148 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 12:19:08,156 INFO L225 Difference]: With dead ends: 35 [2018-11-28 12:19:08,156 INFO L226 Difference]: Without dead ends: 21 [2018-11-28 12:19:08,159 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-28 12:19:08,173 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2018-11-28 12:19:08,183 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 20. [2018-11-28 12:19:08,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2018-11-28 12:19:08,184 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 20 transitions. [2018-11-28 12:19:08,186 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 20 transitions. Word has length 7 [2018-11-28 12:19:08,186 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 12:19:08,186 INFO L480 AbstractCegarLoop]: Abstraction has 20 states and 20 transitions. [2018-11-28 12:19:08,186 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-28 12:19:08,186 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 20 transitions. [2018-11-28 12:19:08,187 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-11-28 12:19:08,187 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 12:19:08,187 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 12:19:08,187 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-28 12:19:08,188 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 12:19:08,188 INFO L82 PathProgramCache]: Analyzing trace with hash 1626799533, now seen corresponding path program 1 times [2018-11-28 12:19:08,188 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 12:19:08,188 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 12:19:08,189 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:19:08,189 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 12:19:08,189 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:19:08,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 12:19:08,231 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 12:19:08,231 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 12:19:08,231 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-28 12:19:08,232 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-28 12:19:08,232 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-28 12:19:08,233 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-11-28 12:19:08,233 INFO L87 Difference]: Start difference. First operand 20 states and 20 transitions. Second operand 4 states. [2018-11-28 12:19:08,290 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 12:19:08,290 INFO L93 Difference]: Finished difference Result 20 states and 20 transitions. [2018-11-28 12:19:08,291 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-28 12:19:08,291 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 8 [2018-11-28 12:19:08,291 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 12:19:08,291 INFO L225 Difference]: With dead ends: 20 [2018-11-28 12:19:08,291 INFO L226 Difference]: Without dead ends: 17 [2018-11-28 12:19:08,292 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-11-28 12:19:08,292 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2018-11-28 12:19:08,293 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2018-11-28 12:19:08,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2018-11-28 12:19:08,294 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 17 transitions. [2018-11-28 12:19:08,294 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 17 transitions. Word has length 8 [2018-11-28 12:19:08,294 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 12:19:08,294 INFO L480 AbstractCegarLoop]: Abstraction has 17 states and 17 transitions. [2018-11-28 12:19:08,294 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-28 12:19:08,295 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 17 transitions. [2018-11-28 12:19:08,295 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-11-28 12:19:08,295 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 12:19:08,295 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 12:19:08,295 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-28 12:19:08,295 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 12:19:08,296 INFO L82 PathProgramCache]: Analyzing trace with hash -13742961, now seen corresponding path program 1 times [2018-11-28 12:19:08,296 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 12:19:08,296 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 12:19:08,296 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:19:08,296 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 12:19:08,297 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:19:08,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 12:19:08,316 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 12:19:08,316 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 12:19:08,316 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-28 12:19:08,317 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-28 12:19:08,317 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-28 12:19:08,317 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-28 12:19:08,317 INFO L87 Difference]: Start difference. First operand 17 states and 17 transitions. Second operand 3 states. [2018-11-28 12:19:08,345 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 12:19:08,345 INFO L93 Difference]: Finished difference Result 24 states and 24 transitions. [2018-11-28 12:19:08,346 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-28 12:19:08,346 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2018-11-28 12:19:08,347 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 12:19:08,347 INFO L225 Difference]: With dead ends: 24 [2018-11-28 12:19:08,347 INFO L226 Difference]: Without dead ends: 22 [2018-11-28 12:19:08,348 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-28 12:19:08,348 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2018-11-28 12:19:08,350 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2018-11-28 12:19:08,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2018-11-28 12:19:08,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 22 transitions. [2018-11-28 12:19:08,352 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 22 transitions. Word has length 10 [2018-11-28 12:19:08,352 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 12:19:08,352 INFO L480 AbstractCegarLoop]: Abstraction has 22 states and 22 transitions. [2018-11-28 12:19:08,352 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-28 12:19:08,352 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 22 transitions. [2018-11-28 12:19:08,353 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-11-28 12:19:08,353 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 12:19:08,353 INFO L402 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 12:19:08,353 INFO L423 AbstractCegarLoop]: === Iteration 4 === [mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-28 12:19:08,353 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 12:19:08,353 INFO L82 PathProgramCache]: Analyzing trace with hash -283092845, now seen corresponding path program 1 times [2018-11-28 12:19:08,353 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 12:19:08,353 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 12:19:08,354 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:19:08,354 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 12:19:08,354 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:19:08,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 12:19:08,472 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 12:19:08,472 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-28 12:19:08,472 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_07efaf75-af85-4f5d-b3e1-2c0201fff6f3/bin-2019/uautomizer/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-28 12:19:08,482 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 12:19:08,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 12:19:08,495 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 12:19:08,607 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 12:19:08,630 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-28 12:19:08,630 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 4] total 9 [2018-11-28 12:19:08,631 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-11-28 12:19:08,631 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-11-28 12:19:08,631 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90 [2018-11-28 12:19:08,631 INFO L87 Difference]: Start difference. First operand 22 states and 22 transitions. Second operand 10 states. [2018-11-28 12:19:08,667 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 12:19:08,668 INFO L93 Difference]: Finished difference Result 22 states and 22 transitions. [2018-11-28 12:19:08,668 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-28 12:19:08,668 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 14 [2018-11-28 12:19:08,668 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 12:19:08,669 INFO L225 Difference]: With dead ends: 22 [2018-11-28 12:19:08,669 INFO L226 Difference]: Without dead ends: 0 [2018-11-28 12:19:08,669 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90 [2018-11-28 12:19:08,669 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-28 12:19:08,669 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-28 12:19:08,669 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-28 12:19:08,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-28 12:19:08,670 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 14 [2018-11-28 12:19:08,670 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 12:19:08,670 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-28 12:19:08,670 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-11-28 12:19:08,670 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-28 12:19:08,670 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-28 12:19:08,673 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-28 12:19:08,737 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2018-11-28 12:19:08,737 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-11-28 12:19:08,737 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-11-28 12:19:08,737 INFO L451 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-11-28 12:19:08,738 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-11-28 12:19:08,738 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-11-28 12:19:08,738 INFO L448 ceAbstractionStarter]: For program point mainEXIT(lines 11 19) no Hoare annotation was computed. [2018-11-28 12:19:08,738 INFO L448 ceAbstractionStarter]: For program point L15(line 15) no Hoare annotation was computed. [2018-11-28 12:19:08,738 INFO L448 ceAbstractionStarter]: For program point L15-1(line 15) no Hoare annotation was computed. [2018-11-28 12:19:08,738 INFO L448 ceAbstractionStarter]: For program point mainFINAL(lines 11 19) no Hoare annotation was computed. [2018-11-28 12:19:08,738 INFO L448 ceAbstractionStarter]: For program point mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 16) no Hoare annotation was computed. [2018-11-28 12:19:08,738 INFO L448 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 15) no Hoare annotation was computed. [2018-11-28 12:19:08,739 INFO L448 ceAbstractionStarter]: For program point mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW(line 16) no Hoare annotation was computed. [2018-11-28 12:19:08,739 INFO L451 ceAbstractionStarter]: At program point mainENTRY(lines 11 19) the Hoare annotation is: true [2018-11-28 12:19:08,739 INFO L448 ceAbstractionStarter]: For program point L16(line 16) no Hoare annotation was computed. [2018-11-28 12:19:08,739 INFO L448 ceAbstractionStarter]: For program point L16-1(line 16) no Hoare annotation was computed. [2018-11-28 12:19:08,739 INFO L448 ceAbstractionStarter]: For program point L16-2(line 16) no Hoare annotation was computed. [2018-11-28 12:19:08,739 INFO L448 ceAbstractionStarter]: For program point mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW(line 16) no Hoare annotation was computed. [2018-11-28 12:19:08,739 INFO L448 ceAbstractionStarter]: For program point L16-3(line 16) no Hoare annotation was computed. [2018-11-28 12:19:08,740 INFO L444 ceAbstractionStarter]: At program point L14-2(lines 14 17) the Hoare annotation is: (let ((.cse0 (<= main_~y~0 2))) (or (and .cse0 (<= 2 main_~y~0) (<= main_~x~0 (+ main_~y~0 2147483645))) (and (exists ((v_main_~y~0_15 Int)) (let ((.cse1 (+ v_main_~y~0_15 1))) (and (<= (+ main_~x~0 v_main_~y~0_15) 2147483647) (<= 2 v_main_~y~0_15) (<= (div .cse1 2) main_~y~0) (<= 0 .cse1)))) .cse0))) [2018-11-28 12:19:08,740 INFO L448 ceAbstractionStarter]: For program point L14-3(lines 14 17) no Hoare annotation was computed. [2018-11-28 12:19:08,740 INFO L448 ceAbstractionStarter]: For program point mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 16) no Hoare annotation was computed. [2018-11-28 12:19:08,742 INFO L448 ceAbstractionStarter]: For program point mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 15) no Hoare annotation was computed. [2018-11-28 12:19:08,747 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~y~0_15,QUANTIFIED] [2018-11-28 12:19:08,747 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~y~0_15,QUANTIFIED] [2018-11-28 12:19:08,747 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~y~0_15,QUANTIFIED] [2018-11-28 12:19:08,747 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~y~0_15,QUANTIFIED] [2018-11-28 12:19:08,752 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~y~0_15,QUANTIFIED] [2018-11-28 12:19:08,752 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~y~0_15,QUANTIFIED] [2018-11-28 12:19:08,752 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~y~0_15,QUANTIFIED] [2018-11-28 12:19:08,752 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~y~0_15,QUANTIFIED] [2018-11-28 12:19:08,754 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 12:19:08 BoogieIcfgContainer [2018-11-28 12:19:08,755 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-28 12:19:08,755 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-28 12:19:08,755 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-28 12:19:08,756 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-28 12:19:08,756 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 12:19:07" (3/4) ... [2018-11-28 12:19:08,759 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-28 12:19:08,764 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-11-28 12:19:08,764 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-11-28 12:19:08,768 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2018-11-28 12:19:08,768 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2018-11-28 12:19:08,768 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-11-28 12:19:08,786 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((y <= 2 && 2 <= y) && x <= y + 2147483645) || ((\exists v_main_~y~0_15 : int :: ((x + v_main_~y~0_15 <= 2147483647 && 2 <= v_main_~y~0_15) && (v_main_~y~0_15 + 1) / 2 <= y) && 0 <= v_main_~y~0_15 + 1) && y <= 2) [2018-11-28 12:19:08,796 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_07efaf75-af85-4f5d-b3e1-2c0201fff6f3/bin-2019/uautomizer/witness.graphml [2018-11-28 12:19:08,796 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-28 12:19:08,796 INFO L168 Benchmark]: Toolchain (without parser) took 1206.53 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 137.9 MB). Free memory was 952.2 MB in the beginning and 1.0 GB in the end (delta: -78.8 MB). Peak memory consumption was 59.1 MB. Max. memory is 11.5 GB. [2018-11-28 12:19:08,797 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 12:19:08,797 INFO L168 Benchmark]: CACSL2BoogieTranslator took 133.85 ms. Allocated memory is still 1.0 GB. Free memory was 952.2 MB in the beginning and 941.4 MB in the end (delta: 10.9 MB). Peak memory consumption was 10.9 MB. Max. memory is 11.5 GB. [2018-11-28 12:19:08,798 INFO L168 Benchmark]: Boogie Procedure Inliner took 10.97 ms. Allocated memory is still 1.0 GB. Free memory is still 941.4 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 12:19:08,798 INFO L168 Benchmark]: Boogie Preprocessor took 11.28 ms. Allocated memory is still 1.0 GB. Free memory is still 941.4 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 12:19:08,798 INFO L168 Benchmark]: RCFGBuilder took 167.66 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 137.9 MB). Free memory was 941.4 MB in the beginning and 1.1 GB in the end (delta: -180.1 MB). Peak memory consumption was 15.6 MB. Max. memory is 11.5 GB. [2018-11-28 12:19:08,799 INFO L168 Benchmark]: TraceAbstraction took 839.17 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 85.1 MB). Peak memory consumption was 85.1 MB. Max. memory is 11.5 GB. [2018-11-28 12:19:08,799 INFO L168 Benchmark]: Witness Printer took 40.41 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-11-28 12:19:08,801 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 133.85 ms. Allocated memory is still 1.0 GB. Free memory was 952.2 MB in the beginning and 941.4 MB in the end (delta: 10.9 MB). Peak memory consumption was 10.9 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 10.97 ms. Allocated memory is still 1.0 GB. Free memory is still 941.4 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 11.28 ms. Allocated memory is still 1.0 GB. Free memory is still 941.4 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 167.66 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 137.9 MB). Free memory was 941.4 MB in the beginning and 1.1 GB in the end (delta: -180.1 MB). Peak memory consumption was 15.6 MB. Max. memory is 11.5 GB. * TraceAbstraction took 839.17 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 85.1 MB). Peak memory consumption was 85.1 MB. Max. memory is 11.5 GB. * Witness Printer took 40.41 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~y~0_15,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~y~0_15,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~y~0_15,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~y~0_15,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~y~0_15,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~y~0_15,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~y~0_15,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~y~0_15,QUANTIFIED] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 16]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 16]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 15]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 16]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 15]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 16]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - AllSpecificationsHoldResult: All specifications hold 6 specifications checked. All of them hold - InvariantResult [Line: 14]: Loop Invariant [2018-11-28 12:19:08,806 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~y~0_15,QUANTIFIED] [2018-11-28 12:19:08,806 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~y~0_15,QUANTIFIED] [2018-11-28 12:19:08,807 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~y~0_15,QUANTIFIED] [2018-11-28 12:19:08,807 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~y~0_15,QUANTIFIED] [2018-11-28 12:19:08,808 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~y~0_15,QUANTIFIED] [2018-11-28 12:19:08,808 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~y~0_15,QUANTIFIED] [2018-11-28 12:19:08,808 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~y~0_15,QUANTIFIED] [2018-11-28 12:19:08,808 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~y~0_15,QUANTIFIED] Derived loop invariant: ((y <= 2 && 2 <= y) && x <= y + 2147483645) || ((\exists v_main_~y~0_15 : int :: ((x + v_main_~y~0_15 <= 2147483647 && 2 <= v_main_~y~0_15) && (v_main_~y~0_15 + 1) / 2 <= y) && 0 <= v_main_~y~0_15 + 1) && y <= 2) - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 23 locations, 6 error locations. SAFE Result, 0.7s OverallTime, 4 OverallIterations, 2 TraceHistogramMax, 0.2s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 38 SDtfs, 38 SDslu, 37 SDs, 0 SdLazy, 77 SolverSat, 17 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 27 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=23occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 5 LocationsWithAnnotation, 5 PreInvPairs, 6 NumberOfFragments, 43 HoareAnnotationTreeSize, 5 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 5 FomulaSimplificationsInter, 3 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 53 NumberOfCodeBlocks, 53 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 48 ConstructedInterpolants, 2 QuantifiedInterpolants, 3078 SizeOfPredicates, 0 NumberOfNonLiveVariables, 29 ConjunctsInSsa, 6 ConjunctsInUnsatCore, 5 InterpolantComputations, 3 PerfectInterpolantSequences, 0/4 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...