./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-crafted-lit/CookSeeZuleger-TACAS2013-Fig7a.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version f470102c Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_0c209c6e-741e-43e0-909e-c1d5468f5976/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_0c209c6e-741e-43e0-909e-c1d5468f5976/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_0c209c6e-741e-43e0-909e-c1d5468f5976/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_0c209c6e-741e-43e0-909e-c1d5468f5976/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/termination-crafted-lit/CookSeeZuleger-TACAS2013-Fig7a.c -s /tmp/vcloud-vcloud-master/worker/run_dir_0c209c6e-741e-43e0-909e-c1d5468f5976/bin/uautomizer/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_0c209c6e-741e-43e0-909e-c1d5468f5976/bin/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 f9de9875f09e594325a645528f016ce12ac5c646 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.25-f470102 [2019-12-07 17:14:45,167 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 17:14:45,169 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 17:14:45,178 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 17:14:45,178 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 17:14:45,179 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 17:14:45,180 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 17:14:45,181 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 17:14:45,182 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 17:14:45,183 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 17:14:45,184 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 17:14:45,184 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 17:14:45,185 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 17:14:45,185 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 17:14:45,186 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 17:14:45,187 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 17:14:45,187 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 17:14:45,188 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 17:14:45,189 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 17:14:45,191 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 17:14:45,192 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 17:14:45,193 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 17:14:45,193 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 17:14:45,194 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 17:14:45,195 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 17:14:45,196 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 17:14:45,196 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 17:14:45,196 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 17:14:45,196 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 17:14:45,197 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 17:14:45,197 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 17:14:45,198 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 17:14:45,198 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 17:14:45,199 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 17:14:45,200 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 17:14:45,200 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 17:14:45,201 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 17:14:45,201 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 17:14:45,201 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 17:14:45,202 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 17:14:45,202 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 17:14:45,203 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_0c209c6e-741e-43e0-909e-c1d5468f5976/bin/uautomizer/config/svcomp-Overflow-64bit-Automizer_Default.epf [2019-12-07 17:14:45,215 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 17:14:45,215 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 17:14:45,216 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-07 17:14:45,217 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-07 17:14:45,217 INFO L138 SettingsManager]: * Use SBE=true [2019-12-07 17:14:45,217 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 17:14:45,217 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-12-07 17:14:45,217 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-07 17:14:45,218 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 17:14:45,218 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-07 17:14:45,218 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-07 17:14:45,218 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-07 17:14:45,218 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2019-12-07 17:14:45,219 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 17:14:45,219 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 17:14:45,219 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-07 17:14:45,219 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 17:14:45,219 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-07 17:14:45,219 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-07 17:14:45,220 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-07 17:14:45,220 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 17:14:45,220 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 17:14:45,220 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-07 17:14:45,220 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-07 17:14:45,221 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-07 17:14:45,221 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-07 17:14:45,221 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-07 17:14:45,221 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 17:14:45,221 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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/run_dir_0c209c6e-741e-43e0-909e-c1d5468f5976/bin/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 -> f9de9875f09e594325a645528f016ce12ac5c646 [2019-12-07 17:14:45,324 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 17:14:45,333 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 17:14:45,335 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 17:14:45,337 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 17:14:45,337 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 17:14:45,338 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_0c209c6e-741e-43e0-909e-c1d5468f5976/bin/uautomizer/../../sv-benchmarks/c/termination-crafted-lit/CookSeeZuleger-TACAS2013-Fig7a.c [2019-12-07 17:14:45,380 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_0c209c6e-741e-43e0-909e-c1d5468f5976/bin/uautomizer/data/e7254db7e/5a0b108e63444f6a8cd9b218760c82f7/FLAG584f11e46 [2019-12-07 17:14:45,784 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 17:14:45,785 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_0c209c6e-741e-43e0-909e-c1d5468f5976/sv-benchmarks/c/termination-crafted-lit/CookSeeZuleger-TACAS2013-Fig7a.c [2019-12-07 17:14:45,790 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_0c209c6e-741e-43e0-909e-c1d5468f5976/bin/uautomizer/data/e7254db7e/5a0b108e63444f6a8cd9b218760c82f7/FLAG584f11e46 [2019-12-07 17:14:45,800 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_0c209c6e-741e-43e0-909e-c1d5468f5976/bin/uautomizer/data/e7254db7e/5a0b108e63444f6a8cd9b218760c82f7 [2019-12-07 17:14:45,802 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 17:14:45,803 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 17:14:45,804 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 17:14:45,804 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 17:14:45,806 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 17:14:45,806 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 05:14:45" (1/1) ... [2019-12-07 17:14:45,808 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6f2c5fa1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:14:45, skipping insertion in model container [2019-12-07 17:14:45,808 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 05:14:45" (1/1) ... [2019-12-07 17:14:45,813 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 17:14:45,824 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 17:14:45,917 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 17:14:45,919 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 17:14:45,961 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 17:14:45,969 INFO L208 MainTranslator]: Completed translation [2019-12-07 17:14:45,969 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:14:45 WrapperNode [2019-12-07 17:14:45,970 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 17:14:45,970 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-07 17:14:45,970 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-07 17:14:45,970 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-07 17:14:45,976 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:14:45" (1/1) ... [2019-12-07 17:14:45,979 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:14:45" (1/1) ... [2019-12-07 17:14:45,991 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-07 17:14:45,991 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 17:14:45,991 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 17:14:45,991 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 17:14:45,997 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:14:45" (1/1) ... [2019-12-07 17:14:45,997 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:14:45" (1/1) ... [2019-12-07 17:14:45,998 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:14:45" (1/1) ... [2019-12-07 17:14:45,998 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:14:45" (1/1) ... [2019-12-07 17:14:45,999 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:14:45" (1/1) ... [2019-12-07 17:14:46,002 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:14:45" (1/1) ... [2019-12-07 17:14:46,002 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:14:45" (1/1) ... [2019-12-07 17:14:46,003 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 17:14:46,004 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 17:14:46,004 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 17:14:46,004 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 17:14:46,004 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:14:45" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0c209c6e-741e-43e0-909e-c1d5468f5976/bin/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 [2019-12-07 17:14:46,042 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 17:14:46,042 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 17:14:46,152 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 17:14:46,152 INFO L287 CfgBuilder]: Removed 5 assume(true) statements. [2019-12-07 17:14:46,153 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 05:14:46 BoogieIcfgContainer [2019-12-07 17:14:46,153 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 17:14:46,154 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-07 17:14:46,154 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-07 17:14:46,156 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-07 17:14:46,156 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.12 05:14:45" (1/3) ... [2019-12-07 17:14:46,157 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4faa7356 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 05:14:46, skipping insertion in model container [2019-12-07 17:14:46,157 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:14:45" (2/3) ... [2019-12-07 17:14:46,157 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4faa7356 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 05:14:46, skipping insertion in model container [2019-12-07 17:14:46,157 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 05:14:46" (3/3) ... [2019-12-07 17:14:46,158 INFO L109 eAbstractionObserver]: Analyzing ICFG CookSeeZuleger-TACAS2013-Fig7a.c [2019-12-07 17:14:46,167 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-07 17:14:46,172 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 6 error locations. [2019-12-07 17:14:46,181 INFO L249 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2019-12-07 17:14:46,195 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-07 17:14:46,195 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-07 17:14:46,196 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-07 17:14:46,196 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 17:14:46,196 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 17:14:46,196 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-07 17:14:46,196 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 17:14:46,196 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-07 17:14:46,206 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states. [2019-12-07 17:14:46,209 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2019-12-07 17:14:46,209 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 17:14:46,209 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2019-12-07 17:14:46,210 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-12-07 17:14:46,213 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 17:14:46,213 INFO L82 PathProgramCache]: Analyzing trace with hash 963531, now seen corresponding path program 1 times [2019-12-07 17:14:46,218 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 17:14:46,219 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [128751933] [2019-12-07 17:14:46,219 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 17:14:46,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 17:14:46,318 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 17:14:46,319 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [128751933] [2019-12-07 17:14:46,319 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 17:14:46,320 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-12-07 17:14:46,321 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [415988836] [2019-12-07 17:14:46,323 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-07 17:14:46,323 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 17:14:46,332 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-07 17:14:46,332 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 17:14:46,334 INFO L87 Difference]: Start difference. First operand 19 states. Second operand 3 states. [2019-12-07 17:14:46,354 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 17:14:46,355 INFO L93 Difference]: Finished difference Result 23 states and 24 transitions. [2019-12-07 17:14:46,355 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 17:14:46,356 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 4 [2019-12-07 17:14:46,356 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 17:14:46,362 INFO L225 Difference]: With dead ends: 23 [2019-12-07 17:14:46,362 INFO L226 Difference]: Without dead ends: 14 [2019-12-07 17:14:46,363 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 17:14:46,374 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2019-12-07 17:14:46,382 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2019-12-07 17:14:46,383 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2019-12-07 17:14:46,383 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 15 transitions. [2019-12-07 17:14:46,384 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 15 transitions. Word has length 4 [2019-12-07 17:14:46,384 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 17:14:46,384 INFO L462 AbstractCegarLoop]: Abstraction has 14 states and 15 transitions. [2019-12-07 17:14:46,384 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-07 17:14:46,384 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 15 transitions. [2019-12-07 17:14:46,385 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2019-12-07 17:14:46,385 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 17:14:46,385 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2019-12-07 17:14:46,385 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-12-07 17:14:46,385 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 17:14:46,385 INFO L82 PathProgramCache]: Analyzing trace with hash 963339, now seen corresponding path program 1 times [2019-12-07 17:14:46,386 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 17:14:46,386 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1298278161] [2019-12-07 17:14:46,386 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 17:14:46,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 17:14:46,403 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 17:14:46,403 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1298278161] [2019-12-07 17:14:46,403 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 17:14:46,403 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-12-07 17:14:46,403 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [159394736] [2019-12-07 17:14:46,404 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-07 17:14:46,405 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 17:14:46,405 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-07 17:14:46,405 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 17:14:46,405 INFO L87 Difference]: Start difference. First operand 14 states and 15 transitions. Second operand 3 states. [2019-12-07 17:14:46,414 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 17:14:46,414 INFO L93 Difference]: Finished difference Result 14 states and 15 transitions. [2019-12-07 17:14:46,414 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 17:14:46,414 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 4 [2019-12-07 17:14:46,415 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 17:14:46,415 INFO L225 Difference]: With dead ends: 14 [2019-12-07 17:14:46,415 INFO L226 Difference]: Without dead ends: 13 [2019-12-07 17:14:46,416 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 17:14:46,416 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2019-12-07 17:14:46,417 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2019-12-07 17:14:46,417 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2019-12-07 17:14:46,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 14 transitions. [2019-12-07 17:14:46,418 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 14 transitions. Word has length 4 [2019-12-07 17:14:46,418 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 17:14:46,418 INFO L462 AbstractCegarLoop]: Abstraction has 13 states and 14 transitions. [2019-12-07 17:14:46,418 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-07 17:14:46,418 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 14 transitions. [2019-12-07 17:14:46,419 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2019-12-07 17:14:46,419 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 17:14:46,419 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2019-12-07 17:14:46,419 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-12-07 17:14:46,419 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 17:14:46,419 INFO L82 PathProgramCache]: Analyzing trace with hash 29869514, now seen corresponding path program 1 times [2019-12-07 17:14:46,419 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 17:14:46,420 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [892399622] [2019-12-07 17:14:46,420 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 17:14:46,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 17:14:46,437 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 17:14:46,437 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [892399622] [2019-12-07 17:14:46,437 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 17:14:46,437 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-07 17:14:46,437 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [986194442] [2019-12-07 17:14:46,438 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-07 17:14:46,438 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 17:14:46,438 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-07 17:14:46,438 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 17:14:46,438 INFO L87 Difference]: Start difference. First operand 13 states and 14 transitions. Second operand 3 states. [2019-12-07 17:14:46,446 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 17:14:46,446 INFO L93 Difference]: Finished difference Result 14 states and 15 transitions. [2019-12-07 17:14:46,447 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 17:14:46,447 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 5 [2019-12-07 17:14:46,447 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 17:14:46,447 INFO L225 Difference]: With dead ends: 14 [2019-12-07 17:14:46,447 INFO L226 Difference]: Without dead ends: 13 [2019-12-07 17:14:46,448 INFO L630 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 [2019-12-07 17:14:46,448 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2019-12-07 17:14:46,449 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 12. [2019-12-07 17:14:46,449 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2019-12-07 17:14:46,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 13 transitions. [2019-12-07 17:14:46,450 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 13 transitions. Word has length 5 [2019-12-07 17:14:46,450 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 17:14:46,450 INFO L462 AbstractCegarLoop]: Abstraction has 12 states and 13 transitions. [2019-12-07 17:14:46,450 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-07 17:14:46,450 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 13 transitions. [2019-12-07 17:14:46,450 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2019-12-07 17:14:46,450 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 17:14:46,451 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2019-12-07 17:14:46,451 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-12-07 17:14:46,451 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 17:14:46,451 INFO L82 PathProgramCache]: Analyzing trace with hash 29863556, now seen corresponding path program 1 times [2019-12-07 17:14:46,451 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 17:14:46,451 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1445778513] [2019-12-07 17:14:46,451 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 17:14:46,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 17:14:46,466 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 17:14:46,467 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1445778513] [2019-12-07 17:14:46,467 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 17:14:46,467 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-07 17:14:46,467 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [94284218] [2019-12-07 17:14:46,467 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-07 17:14:46,467 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 17:14:46,467 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-07 17:14:46,468 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 17:14:46,468 INFO L87 Difference]: Start difference. First operand 12 states and 13 transitions. Second operand 3 states. [2019-12-07 17:14:46,475 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 17:14:46,476 INFO L93 Difference]: Finished difference Result 12 states and 13 transitions. [2019-12-07 17:14:46,476 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 17:14:46,476 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 5 [2019-12-07 17:14:46,476 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 17:14:46,476 INFO L225 Difference]: With dead ends: 12 [2019-12-07 17:14:46,477 INFO L226 Difference]: Without dead ends: 11 [2019-12-07 17:14:46,477 INFO L630 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 [2019-12-07 17:14:46,477 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2019-12-07 17:14:46,478 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 11. [2019-12-07 17:14:46,479 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2019-12-07 17:14:46,479 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 12 transitions. [2019-12-07 17:14:46,479 INFO L78 Accepts]: Start accepts. Automaton has 11 states and 12 transitions. Word has length 5 [2019-12-07 17:14:46,479 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 17:14:46,479 INFO L462 AbstractCegarLoop]: Abstraction has 11 states and 12 transitions. [2019-12-07 17:14:46,479 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-07 17:14:46,479 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 12 transitions. [2019-12-07 17:14:46,480 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2019-12-07 17:14:46,480 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 17:14:46,480 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2019-12-07 17:14:46,480 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-12-07 17:14:46,480 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 17:14:46,480 INFO L82 PathProgramCache]: Analyzing trace with hash 925954989, now seen corresponding path program 1 times [2019-12-07 17:14:46,480 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 17:14:46,480 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [906510053] [2019-12-07 17:14:46,481 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 17:14:46,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 17:14:46,497 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 17:14:46,497 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [906510053] [2019-12-07 17:14:46,497 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 17:14:46,497 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-12-07 17:14:46,498 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [367113492] [2019-12-07 17:14:46,498 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-07 17:14:46,498 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 17:14:46,498 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-07 17:14:46,499 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 17:14:46,499 INFO L87 Difference]: Start difference. First operand 11 states and 12 transitions. Second operand 3 states. [2019-12-07 17:14:46,508 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 17:14:46,508 INFO L93 Difference]: Finished difference Result 11 states and 12 transitions. [2019-12-07 17:14:46,508 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 17:14:46,508 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 6 [2019-12-07 17:14:46,509 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 17:14:46,509 INFO L225 Difference]: With dead ends: 11 [2019-12-07 17:14:46,509 INFO L226 Difference]: Without dead ends: 10 [2019-12-07 17:14:46,509 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 17:14:46,510 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states. [2019-12-07 17:14:46,511 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 10. [2019-12-07 17:14:46,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2019-12-07 17:14:46,512 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 11 transitions. [2019-12-07 17:14:46,512 INFO L78 Accepts]: Start accepts. Automaton has 10 states and 11 transitions. Word has length 6 [2019-12-07 17:14:46,512 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 17:14:46,512 INFO L462 AbstractCegarLoop]: Abstraction has 10 states and 11 transitions. [2019-12-07 17:14:46,512 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-07 17:14:46,513 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 11 transitions. [2019-12-07 17:14:46,513 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2019-12-07 17:14:46,513 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 17:14:46,513 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2019-12-07 17:14:46,513 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-12-07 17:14:46,514 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 17:14:46,514 INFO L82 PathProgramCache]: Analyzing trace with hash -1360166356, now seen corresponding path program 1 times [2019-12-07 17:14:46,514 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 17:14:46,514 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [440422760] [2019-12-07 17:14:46,514 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 17:14:46,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 17:14:46,533 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 17:14:46,534 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [440422760] [2019-12-07 17:14:46,534 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 17:14:46,534 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-07 17:14:46,534 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1487611699] [2019-12-07 17:14:46,534 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-07 17:14:46,534 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 17:14:46,534 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-07 17:14:46,535 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 17:14:46,535 INFO L87 Difference]: Start difference. First operand 10 states and 11 transitions. Second operand 3 states. [2019-12-07 17:14:46,542 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 17:14:46,542 INFO L93 Difference]: Finished difference Result 10 states and 11 transitions. [2019-12-07 17:14:46,542 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 17:14:46,542 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 7 [2019-12-07 17:14:46,542 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 17:14:46,542 INFO L225 Difference]: With dead ends: 10 [2019-12-07 17:14:46,543 INFO L226 Difference]: Without dead ends: 0 [2019-12-07 17:14:46,543 INFO L630 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 [2019-12-07 17:14:46,543 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-12-07 17:14:46,543 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-12-07 17:14:46,543 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-12-07 17:14:46,543 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-12-07 17:14:46,544 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 7 [2019-12-07 17:14:46,544 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 17:14:46,544 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-07 17:14:46,544 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-07 17:14:46,544 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-12-07 17:14:46,544 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-12-07 17:14:46,545 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-12-07 17:14:46,561 INFO L246 CegarLoopResult]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 22) no Hoare annotation was computed. [2019-12-07 17:14:46,562 INFO L246 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-12-07 17:14:46,562 INFO L246 CegarLoopResult]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 26) no Hoare annotation was computed. [2019-12-07 17:14:46,562 INFO L246 CegarLoopResult]: For program point ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW(line 27) no Hoare annotation was computed. [2019-12-07 17:14:46,562 INFO L246 CegarLoopResult]: For program point L27(line 27) no Hoare annotation was computed. [2019-12-07 17:14:46,562 INFO L246 CegarLoopResult]: For program point L27-1(line 27) no Hoare annotation was computed. [2019-12-07 17:14:46,562 INFO L246 CegarLoopResult]: For program point L21(lines 21 28) no Hoare annotation was computed. [2019-12-07 17:14:46,562 INFO L242 CegarLoopResult]: At program point L21-2(lines 20 29) the Hoare annotation is: (and (<= ULTIMATE.start_main_~x~0 2147483647) (<= ULTIMATE.start_main_~d~0 2147483647) (<= ULTIMATE.start_main_~y~0 2147483647)) [2019-12-07 17:14:46,562 INFO L246 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 22) no Hoare annotation was computed. [2019-12-07 17:14:46,563 INFO L246 CegarLoopResult]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 26) no Hoare annotation was computed. [2019-12-07 17:14:46,563 INFO L242 CegarLoopResult]: At program point L30(lines 15 31) the Hoare annotation is: (<= ULTIMATE.start_main_~y~0 2147483647) [2019-12-07 17:14:46,563 INFO L246 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-12-07 17:14:46,563 INFO L246 CegarLoopResult]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW(line 27) no Hoare annotation was computed. [2019-12-07 17:14:46,563 INFO L246 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-12-07 17:14:46,563 INFO L246 CegarLoopResult]: For program point L26(line 26) no Hoare annotation was computed. [2019-12-07 17:14:46,563 INFO L246 CegarLoopResult]: For program point L26-1(line 26) no Hoare annotation was computed. [2019-12-07 17:14:46,563 INFO L246 CegarLoopResult]: For program point L22(line 22) no Hoare annotation was computed. [2019-12-07 17:14:46,563 INFO L246 CegarLoopResult]: For program point L22-1(line 22) no Hoare annotation was computed. [2019-12-07 17:14:46,563 INFO L246 CegarLoopResult]: For program point L20-2(lines 20 29) no Hoare annotation was computed. [2019-12-07 17:14:46,574 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.12 05:14:46 BoogieIcfgContainer [2019-12-07 17:14:46,575 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-07 17:14:46,575 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-07 17:14:46,575 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-07 17:14:46,575 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-07 17:14:46,575 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 05:14:46" (3/4) ... [2019-12-07 17:14:46,578 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-12-07 17:14:46,584 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2019-12-07 17:14:46,585 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2019-12-07 17:14:46,614 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_0c209c6e-741e-43e0-909e-c1d5468f5976/bin/uautomizer/witness.graphml [2019-12-07 17:14:46,614 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-07 17:14:46,616 INFO L168 Benchmark]: Toolchain (without parser) took 812.13 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 98.0 MB). Free memory was 943.5 MB in the beginning and 1.0 GB in the end (delta: -83.4 MB). Peak memory consumption was 14.6 MB. Max. memory is 11.5 GB. [2019-12-07 17:14:46,616 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 958.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 17:14:46,616 INFO L168 Benchmark]: CACSL2BoogieTranslator took 166.14 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 98.0 MB). Free memory was 943.5 MB in the beginning and 1.1 GB in the end (delta: -152.0 MB). Peak memory consumption was 23.1 MB. Max. memory is 11.5 GB. [2019-12-07 17:14:46,616 INFO L168 Benchmark]: Boogie Procedure Inliner took 20.88 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 17:14:46,617 INFO L168 Benchmark]: Boogie Preprocessor took 12.33 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2019-12-07 17:14:46,617 INFO L168 Benchmark]: RCFGBuilder took 149.44 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 16.5 MB). Peak memory consumption was 16.5 MB. Max. memory is 11.5 GB. [2019-12-07 17:14:46,617 INFO L168 Benchmark]: TraceAbstraction took 421.02 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 49.4 MB). Peak memory consumption was 49.4 MB. Max. memory is 11.5 GB. [2019-12-07 17:14:46,617 INFO L168 Benchmark]: Witness Printer took 39.47 ms. Allocated memory is still 1.1 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 17:14:46,619 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 958.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 166.14 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 98.0 MB). Free memory was 943.5 MB in the beginning and 1.1 GB in the end (delta: -152.0 MB). Peak memory consumption was 23.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 20.88 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 12.33 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 149.44 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 16.5 MB). Peak memory consumption was 16.5 MB. Max. memory is 11.5 GB. * TraceAbstraction took 421.02 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 49.4 MB). Peak memory consumption was 49.4 MB. Max. memory is 11.5 GB. * Witness Printer took 39.47 ms. Allocated memory is still 1.1 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 26]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 27]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 27]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 22]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 26]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 22]: 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: 20]: Loop Invariant Derived loop invariant: (x <= 2147483647 && d <= 2147483647) && y <= 2147483647 - InvariantResult [Line: 15]: Loop Invariant Derived loop invariant: y <= 2147483647 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 19 locations, 6 error locations. Result: SAFE, OverallTime: 0.3s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 60 SDtfs, 34 SDslu, 10 SDs, 0 SdLazy, 28 SolverSat, 5 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=19occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 6 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 2 LocationsWithAnnotation, 2 PreInvPairs, 3 NumberOfFragments, 13 HoareAnnotationTreeSize, 2 FomulaSimplifications, 12 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 2 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 31 NumberOfCodeBlocks, 31 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 25 ConstructedInterpolants, 0 QuantifiedInterpolants, 305 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...