./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-crafted/TelAviv-Amir-Minimum.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version cad46833 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_53cefed8-d26a-4019-9a8d-20d85bf0fe8d/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_53cefed8-d26a-4019-9a8d-20d85bf0fe8d/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_53cefed8-d26a-4019-9a8d-20d85bf0fe8d/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_53cefed8-d26a-4019-9a8d-20d85bf0fe8d/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/termination-crafted/TelAviv-Amir-Minimum.c -s /tmp/vcloud-vcloud-master/worker/run_dir_53cefed8-d26a-4019-9a8d-20d85bf0fe8d/bin/uautomizer/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_53cefed8-d26a-4019-9a8d-20d85bf0fe8d/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 687269bb6882b72a3d48999f1e5c55a1d5283a94 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-cad4683 [2019-11-15 22:50:33,115 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-15 22:50:33,116 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-15 22:50:33,130 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-15 22:50:33,131 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-15 22:50:33,132 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-15 22:50:33,134 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-15 22:50:33,144 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-15 22:50:33,148 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-15 22:50:33,151 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-15 22:50:33,154 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-15 22:50:33,155 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-15 22:50:33,156 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-15 22:50:33,157 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-15 22:50:33,159 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-15 22:50:33,160 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-15 22:50:33,160 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-15 22:50:33,161 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-15 22:50:33,163 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-15 22:50:33,167 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-15 22:50:33,170 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-15 22:50:33,172 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-15 22:50:33,175 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-15 22:50:33,176 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-15 22:50:33,179 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-15 22:50:33,179 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-15 22:50:33,179 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-15 22:50:33,181 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-15 22:50:33,181 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-15 22:50:33,182 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-15 22:50:33,183 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-15 22:50:33,183 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-15 22:50:33,184 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-15 22:50:33,184 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-15 22:50:33,186 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-15 22:50:33,186 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-15 22:50:33,187 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-15 22:50:33,188 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-15 22:50:33,188 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-15 22:50:33,189 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-15 22:50:33,189 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-15 22:50:33,190 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_53cefed8-d26a-4019-9a8d-20d85bf0fe8d/bin/uautomizer/config/svcomp-Overflow-64bit-Automizer_Default.epf [2019-11-15 22:50:33,216 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-15 22:50:33,223 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-15 22:50:33,224 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-15 22:50:33,225 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-15 22:50:33,225 INFO L138 SettingsManager]: * Use SBE=true [2019-11-15 22:50:33,225 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-15 22:50:33,226 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-15 22:50:33,226 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-15 22:50:33,230 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-15 22:50:33,230 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-15 22:50:33,231 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-15 22:50:33,231 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-15 22:50:33,231 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2019-11-15 22:50:33,231 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-15 22:50:33,231 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-15 22:50:33,232 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-15 22:50:33,232 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-15 22:50:33,232 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-15 22:50:33,232 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-15 22:50:33,233 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-15 22:50:33,233 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-15 22:50:33,233 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-15 22:50:33,233 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-15 22:50:33,233 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-15 22:50:33,234 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-15 22:50:33,234 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-15 22:50:33,234 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-15 22:50:33,234 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_53cefed8-d26a-4019-9a8d-20d85bf0fe8d/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 -> 687269bb6882b72a3d48999f1e5c55a1d5283a94 [2019-11-15 22:50:33,269 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-15 22:50:33,283 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-15 22:50:33,287 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-15 22:50:33,288 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-15 22:50:33,288 INFO L275 PluginConnector]: CDTParser initialized [2019-11-15 22:50:33,289 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_53cefed8-d26a-4019-9a8d-20d85bf0fe8d/bin/uautomizer/../../sv-benchmarks/c/termination-crafted/TelAviv-Amir-Minimum.c [2019-11-15 22:50:33,349 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_53cefed8-d26a-4019-9a8d-20d85bf0fe8d/bin/uautomizer/data/122562ad1/111c8976f8da45769471c3895f5c625b/FLAG263d2c105 [2019-11-15 22:50:33,709 INFO L306 CDTParser]: Found 1 translation units. [2019-11-15 22:50:33,711 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_53cefed8-d26a-4019-9a8d-20d85bf0fe8d/sv-benchmarks/c/termination-crafted/TelAviv-Amir-Minimum.c [2019-11-15 22:50:33,718 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_53cefed8-d26a-4019-9a8d-20d85bf0fe8d/bin/uautomizer/data/122562ad1/111c8976f8da45769471c3895f5c625b/FLAG263d2c105 [2019-11-15 22:50:34,127 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_53cefed8-d26a-4019-9a8d-20d85bf0fe8d/bin/uautomizer/data/122562ad1/111c8976f8da45769471c3895f5c625b [2019-11-15 22:50:34,129 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-15 22:50:34,130 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-15 22:50:34,134 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-15 22:50:34,135 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-15 22:50:34,138 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-15 22:50:34,138 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.11 10:50:34" (1/1) ... [2019-11-15 22:50:34,140 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@22637c42 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:50:34, skipping insertion in model container [2019-11-15 22:50:34,140 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.11 10:50:34" (1/1) ... [2019-11-15 22:50:34,147 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-15 22:50:34,166 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-15 22:50:34,310 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-15 22:50:34,315 INFO L188 MainTranslator]: Completed pre-run [2019-11-15 22:50:34,389 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-15 22:50:34,401 INFO L192 MainTranslator]: Completed translation [2019-11-15 22:50:34,402 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:50:34 WrapperNode [2019-11-15 22:50:34,402 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-15 22:50:34,402 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-15 22:50:34,402 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-15 22:50:34,403 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-15 22:50:34,411 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:50:34" (1/1) ... [2019-11-15 22:50:34,416 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:50:34" (1/1) ... [2019-11-15 22:50:34,443 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-15 22:50:34,444 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-15 22:50:34,446 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-15 22:50:34,446 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-15 22:50:34,455 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:50:34" (1/1) ... [2019-11-15 22:50:34,455 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:50:34" (1/1) ... [2019-11-15 22:50:34,456 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:50:34" (1/1) ... [2019-11-15 22:50:34,457 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:50:34" (1/1) ... [2019-11-15 22:50:34,468 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:50:34" (1/1) ... [2019-11-15 22:50:34,475 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:50:34" (1/1) ... [2019-11-15 22:50:34,476 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:50:34" (1/1) ... [2019-11-15 22:50:34,485 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-15 22:50:34,485 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-15 22:50:34,486 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-15 22:50:34,486 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-15 22:50:34,487 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:50:34" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_53cefed8-d26a-4019-9a8d-20d85bf0fe8d/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 [2019-11-15 22:50:34,547 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-15 22:50:34,548 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-15 22:50:34,777 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-15 22:50:34,777 INFO L284 CfgBuilder]: Removed 5 assume(true) statements. [2019-11-15 22:50:34,778 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 10:50:34 BoogieIcfgContainer [2019-11-15 22:50:34,779 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-15 22:50:34,780 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-15 22:50:34,780 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-15 22:50:34,784 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-15 22:50:34,784 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.11 10:50:34" (1/3) ... [2019-11-15 22:50:34,785 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ebe48d0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.11 10:50:34, skipping insertion in model container [2019-11-15 22:50:34,785 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:50:34" (2/3) ... [2019-11-15 22:50:34,785 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ebe48d0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.11 10:50:34, skipping insertion in model container [2019-11-15 22:50:34,786 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 10:50:34" (3/3) ... [2019-11-15 22:50:34,787 INFO L109 eAbstractionObserver]: Analyzing ICFG TelAviv-Amir-Minimum.c [2019-11-15 22:50:34,796 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-15 22:50:34,803 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 8 error locations. [2019-11-15 22:50:34,814 INFO L249 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2019-11-15 22:50:34,836 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-15 22:50:34,836 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-15 22:50:34,837 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-15 22:50:34,837 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-15 22:50:34,837 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-15 22:50:34,837 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-15 22:50:34,837 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-15 22:50:34,837 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-15 22:50:34,868 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states. [2019-11-15 22:50:34,873 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2019-11-15 22:50:34,874 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 22:50:34,895 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2019-11-15 22:50:34,897 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-15 22:50:34,902 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 22:50:34,902 INFO L82 PathProgramCache]: Analyzing trace with hash 29863588, now seen corresponding path program 1 times [2019-11-15 22:50:34,910 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 22:50:34,911 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [91068825] [2019-11-15 22:50:34,911 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 22:50:34,911 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 22:50:34,911 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 22:50:35,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:50:35,117 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 22:50:35,117 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [91068825] [2019-11-15 22:50:35,118 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-15 22:50:35,118 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-11-15 22:50:35,119 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1936679821] [2019-11-15 22:50:35,123 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-15 22:50:35,124 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 22:50:35,137 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-15 22:50:35,138 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-15 22:50:35,140 INFO L87 Difference]: Start difference. First operand 27 states. Second operand 3 states. [2019-11-15 22:50:35,242 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 22:50:35,242 INFO L93 Difference]: Finished difference Result 55 states and 64 transitions. [2019-11-15 22:50:35,243 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-15 22:50:35,244 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 5 [2019-11-15 22:50:35,244 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 22:50:35,253 INFO L225 Difference]: With dead ends: 55 [2019-11-15 22:50:35,254 INFO L226 Difference]: Without dead ends: 41 [2019-11-15 22:50:35,256 INFO L600 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 [2019-11-15 22:50:35,272 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2019-11-15 22:50:35,284 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 31. [2019-11-15 22:50:35,286 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2019-11-15 22:50:35,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 38 transitions. [2019-11-15 22:50:35,289 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 38 transitions. Word has length 5 [2019-11-15 22:50:35,290 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 22:50:35,290 INFO L462 AbstractCegarLoop]: Abstraction has 31 states and 38 transitions. [2019-11-15 22:50:35,290 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-15 22:50:35,290 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 38 transitions. [2019-11-15 22:50:35,291 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2019-11-15 22:50:35,292 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 22:50:35,292 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2019-11-15 22:50:35,292 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-15 22:50:35,292 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 22:50:35,293 INFO L82 PathProgramCache]: Analyzing trace with hash 29863780, now seen corresponding path program 1 times [2019-11-15 22:50:35,293 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 22:50:35,293 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [121872035] [2019-11-15 22:50:35,293 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 22:50:35,293 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 22:50:35,293 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 22:50:35,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:50:35,315 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 22:50:35,315 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [121872035] [2019-11-15 22:50:35,316 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-15 22:50:35,316 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-11-15 22:50:35,316 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1851126943] [2019-11-15 22:50:35,317 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-15 22:50:35,318 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 22:50:35,318 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-15 22:50:35,318 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-15 22:50:35,318 INFO L87 Difference]: Start difference. First operand 31 states and 38 transitions. Second operand 3 states. [2019-11-15 22:50:35,394 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 22:50:35,395 INFO L93 Difference]: Finished difference Result 50 states and 62 transitions. [2019-11-15 22:50:35,396 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-15 22:50:35,396 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 5 [2019-11-15 22:50:35,396 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 22:50:35,397 INFO L225 Difference]: With dead ends: 50 [2019-11-15 22:50:35,397 INFO L226 Difference]: Without dead ends: 48 [2019-11-15 22:50:35,398 INFO L600 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 [2019-11-15 22:50:35,399 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2019-11-15 22:50:35,404 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 39. [2019-11-15 22:50:35,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2019-11-15 22:50:35,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 50 transitions. [2019-11-15 22:50:35,405 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 50 transitions. Word has length 5 [2019-11-15 22:50:35,406 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 22:50:35,406 INFO L462 AbstractCegarLoop]: Abstraction has 39 states and 50 transitions. [2019-11-15 22:50:35,406 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-15 22:50:35,408 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 50 transitions. [2019-11-15 22:50:35,409 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2019-11-15 22:50:35,410 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 22:50:35,410 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2019-11-15 22:50:35,410 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-15 22:50:35,411 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 22:50:35,411 INFO L82 PathProgramCache]: Analyzing trace with hash 925771278, now seen corresponding path program 1 times [2019-11-15 22:50:35,411 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 22:50:35,411 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1997641745] [2019-11-15 22:50:35,412 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 22:50:35,412 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 22:50:35,412 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 22:50:35,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:50:35,440 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 22:50:35,440 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1997641745] [2019-11-15 22:50:35,440 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-15 22:50:35,440 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-15 22:50:35,441 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [622618391] [2019-11-15 22:50:35,441 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-15 22:50:35,441 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 22:50:35,441 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-15 22:50:35,442 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-15 22:50:35,442 INFO L87 Difference]: Start difference. First operand 39 states and 50 transitions. Second operand 3 states. [2019-11-15 22:50:35,471 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 22:50:35,471 INFO L93 Difference]: Finished difference Result 39 states and 50 transitions. [2019-11-15 22:50:35,471 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-15 22:50:35,471 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 6 [2019-11-15 22:50:35,472 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 22:50:35,472 INFO L225 Difference]: With dead ends: 39 [2019-11-15 22:50:35,473 INFO L226 Difference]: Without dead ends: 37 [2019-11-15 22:50:35,473 INFO L600 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 [2019-11-15 22:50:35,474 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2019-11-15 22:50:35,477 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37. [2019-11-15 22:50:35,478 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2019-11-15 22:50:35,479 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 47 transitions. [2019-11-15 22:50:35,479 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 47 transitions. Word has length 6 [2019-11-15 22:50:35,479 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 22:50:35,479 INFO L462 AbstractCegarLoop]: Abstraction has 37 states and 47 transitions. [2019-11-15 22:50:35,479 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-15 22:50:35,479 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 47 transitions. [2019-11-15 22:50:35,480 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2019-11-15 22:50:35,480 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 22:50:35,480 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2019-11-15 22:50:35,481 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-15 22:50:35,481 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 22:50:35,481 INFO L82 PathProgramCache]: Analyzing trace with hash 925777236, now seen corresponding path program 1 times [2019-11-15 22:50:35,481 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 22:50:35,482 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1174246211] [2019-11-15 22:50:35,482 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 22:50:35,482 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 22:50:35,482 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 22:50:35,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:50:35,500 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 22:50:35,500 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1174246211] [2019-11-15 22:50:35,501 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-15 22:50:35,501 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-15 22:50:35,501 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [407503691] [2019-11-15 22:50:35,501 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-15 22:50:35,502 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 22:50:35,502 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-15 22:50:35,502 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-15 22:50:35,502 INFO L87 Difference]: Start difference. First operand 37 states and 47 transitions. Second operand 3 states. [2019-11-15 22:50:35,533 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 22:50:35,533 INFO L93 Difference]: Finished difference Result 37 states and 47 transitions. [2019-11-15 22:50:35,534 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-15 22:50:35,534 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 6 [2019-11-15 22:50:35,534 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 22:50:35,535 INFO L225 Difference]: With dead ends: 37 [2019-11-15 22:50:35,535 INFO L226 Difference]: Without dead ends: 35 [2019-11-15 22:50:35,536 INFO L600 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 [2019-11-15 22:50:35,536 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2019-11-15 22:50:35,539 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 35. [2019-11-15 22:50:35,539 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2019-11-15 22:50:35,540 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 44 transitions. [2019-11-15 22:50:35,540 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 44 transitions. Word has length 6 [2019-11-15 22:50:35,541 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 22:50:35,541 INFO L462 AbstractCegarLoop]: Abstraction has 35 states and 44 transitions. [2019-11-15 22:50:35,541 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-15 22:50:35,541 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 44 transitions. [2019-11-15 22:50:35,542 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-11-15 22:50:35,542 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 22:50:35,542 INFO L380 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 22:50:35,542 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-15 22:50:35,542 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 22:50:35,543 INFO L82 PathProgramCache]: Analyzing trace with hash 149003441, now seen corresponding path program 1 times [2019-11-15 22:50:35,543 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 22:50:35,543 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [731393249] [2019-11-15 22:50:35,543 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 22:50:35,543 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 22:50:35,544 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 22:50:35,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:50:35,588 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 22:50:35,589 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [731393249] [2019-11-15 22:50:35,589 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-15 22:50:35,589 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-15 22:50:35,589 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [222901808] [2019-11-15 22:50:35,590 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-15 22:50:35,590 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 22:50:35,590 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-15 22:50:35,590 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-15 22:50:35,590 INFO L87 Difference]: Start difference. First operand 35 states and 44 transitions. Second operand 4 states. [2019-11-15 22:50:35,643 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 22:50:35,643 INFO L93 Difference]: Finished difference Result 35 states and 44 transitions. [2019-11-15 22:50:35,644 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-15 22:50:35,644 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2019-11-15 22:50:35,644 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 22:50:35,644 INFO L225 Difference]: With dead ends: 35 [2019-11-15 22:50:35,644 INFO L226 Difference]: Without dead ends: 0 [2019-11-15 22:50:35,645 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-11-15 22:50:35,645 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-15 22:50:35,645 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-15 22:50:35,646 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-15 22:50:35,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-15 22:50:35,646 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 11 [2019-11-15 22:50:35,646 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 22:50:35,646 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-15 22:50:35,646 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-15 22:50:35,646 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-15 22:50:35,647 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-15 22:50:35,651 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-11-15 22:50:35,669 INFO L443 ceAbstractionStarter]: For program point L27(line 27) no Hoare annotation was computed. [2019-11-15 22:50:35,669 INFO L443 ceAbstractionStarter]: For program point L27-1(line 27) no Hoare annotation was computed. [2019-11-15 22:50:35,669 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW(line 34) no Hoare annotation was computed. [2019-11-15 22:50:35,669 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 27) no Hoare annotation was computed. [2019-11-15 22:50:35,669 INFO L443 ceAbstractionStarter]: For program point L36(line 36) no Hoare annotation was computed. [2019-11-15 22:50:35,670 INFO L443 ceAbstractionStarter]: For program point L36-1(line 36) no Hoare annotation was computed. [2019-11-15 22:50:35,670 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW(line 34) no Hoare annotation was computed. [2019-11-15 22:50:35,670 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-11-15 22:50:35,670 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-11-15 22:50:35,670 INFO L443 ceAbstractionStarter]: For program point L24-2(lines 24 40) no Hoare annotation was computed. [2019-11-15 22:50:35,670 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 27) no Hoare annotation was computed. [2019-11-15 22:50:35,671 INFO L446 ceAbstractionStarter]: At program point L41(lines 19 42) the Hoare annotation is: true [2019-11-15 22:50:35,671 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 29) no Hoare annotation was computed. [2019-11-15 22:50:35,671 INFO L443 ceAbstractionStarter]: For program point L33(lines 33 37) no Hoare annotation was computed. [2019-11-15 22:50:35,671 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-11-15 22:50:35,671 INFO L443 ceAbstractionStarter]: For program point L33-2(lines 33 37) no Hoare annotation was computed. [2019-11-15 22:50:35,671 INFO L443 ceAbstractionStarter]: For program point L29(line 29) no Hoare annotation was computed. [2019-11-15 22:50:35,672 INFO L443 ceAbstractionStarter]: For program point L29-1(line 29) no Hoare annotation was computed. [2019-11-15 22:50:35,672 INFO L443 ceAbstractionStarter]: For program point L25(lines 25 39) no Hoare annotation was computed. [2019-11-15 22:50:35,672 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW(line 36) no Hoare annotation was computed. [2019-11-15 22:50:35,672 INFO L439 ceAbstractionStarter]: At program point L25-2(lines 24 40) the Hoare annotation is: (and (<= ULTIMATE.start_main_~y~0 2147483647) (<= ULTIMATE.start_main_~x~0 2147483648)) [2019-11-15 22:50:35,672 INFO L443 ceAbstractionStarter]: For program point L34(line 34) no Hoare annotation was computed. [2019-11-15 22:50:35,672 INFO L443 ceAbstractionStarter]: For program point L34-1(line 34) no Hoare annotation was computed. [2019-11-15 22:50:35,673 INFO L443 ceAbstractionStarter]: For program point L26(lines 26 30) no Hoare annotation was computed. [2019-11-15 22:50:35,673 INFO L443 ceAbstractionStarter]: For program point L26-2(lines 26 30) no Hoare annotation was computed. [2019-11-15 22:50:35,673 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW(line 36) no Hoare annotation was computed. [2019-11-15 22:50:35,673 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 29) no Hoare annotation was computed. [2019-11-15 22:50:35,686 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.11 10:50:35 BoogieIcfgContainer [2019-11-15 22:50:35,686 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-15 22:50:35,687 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-15 22:50:35,687 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-15 22:50:35,687 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-15 22:50:35,688 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 10:50:34" (3/4) ... [2019-11-15 22:50:35,694 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-11-15 22:50:35,708 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2019-11-15 22:50:35,708 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2019-11-15 22:50:35,757 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_53cefed8-d26a-4019-9a8d-20d85bf0fe8d/bin/uautomizer/witness.graphml [2019-11-15 22:50:35,757 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-15 22:50:35,759 INFO L168 Benchmark]: Toolchain (without parser) took 1628.10 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 145.2 MB). Free memory was 950.1 MB in the beginning and 1.1 GB in the end (delta: -104.2 MB). Peak memory consumption was 41.0 MB. Max. memory is 11.5 GB. [2019-11-15 22:50:35,759 INFO L168 Benchmark]: CDTParser took 0.44 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-15 22:50:35,760 INFO L168 Benchmark]: CACSL2BoogieTranslator took 267.50 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 145.2 MB). Free memory was 950.1 MB in the beginning and 1.1 GB in the end (delta: -185.0 MB). Peak memory consumption was 23.3 MB. Max. memory is 11.5 GB. [2019-11-15 22:50:35,760 INFO L168 Benchmark]: Boogie Procedure Inliner took 41.44 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-15 22:50:35,761 INFO L168 Benchmark]: Boogie Preprocessor took 41.12 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-15 22:50:35,761 INFO L168 Benchmark]: RCFGBuilder took 293.88 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 21.0 MB). Peak memory consumption was 21.0 MB. Max. memory is 11.5 GB. [2019-11-15 22:50:35,761 INFO L168 Benchmark]: TraceAbstraction took 906.29 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 59.8 MB). Peak memory consumption was 59.8 MB. Max. memory is 11.5 GB. [2019-11-15 22:50:35,762 INFO L168 Benchmark]: Witness Printer took 70.49 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-15 22:50:35,764 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.44 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 267.50 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 145.2 MB). Free memory was 950.1 MB in the beginning and 1.1 GB in the end (delta: -185.0 MB). Peak memory consumption was 23.3 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 41.44 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 41.12 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 293.88 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 21.0 MB). Peak memory consumption was 21.0 MB. Max. memory is 11.5 GB. * TraceAbstraction took 906.29 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 59.8 MB). Peak memory consumption was 59.8 MB. Max. memory is 11.5 GB. * Witness Printer took 70.49 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 34]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 29]: 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: 36]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 29]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 34]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 36]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - AllSpecificationsHoldResult: All specifications hold 8 specifications checked. All of them hold - InvariantResult [Line: 24]: Loop Invariant Derived loop invariant: y <= 2147483647 && x <= 2147483648 - InvariantResult [Line: 19]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 27 locations, 8 error locations. Result: SAFE, OverallTime: 0.8s, OverallIterations: 5, TraceHistogramMax: 2, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 65 SDtfs, 85 SDslu, 23 SDs, 0 SdLazy, 89 SolverSat, 28 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=39occurred in iteration=2, 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, 5 MinimizatonAttempts, 19 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 2 LocationsWithAnnotation, 2 PreInvPairs, 5 NumberOfFragments, 8 HoareAnnotationTreeSize, 2 FomulaSimplifications, 11 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 2 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 33 NumberOfCodeBlocks, 33 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 28 ConstructedInterpolants, 0 QuantifiedInterpolants, 446 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 3/3 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...