./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-cousot9.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_0198a88e-240e-4dd6-8aab-90ae6ff4e33b/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_0198a88e-240e-4dd6-8aab-90ae6ff4e33b/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_0198a88e-240e-4dd6-8aab-90ae6ff4e33b/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_0198a88e-240e-4dd6-8aab-90ae6ff4e33b/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-cousot9.c -s /tmp/vcloud-vcloud-master/worker/run_dir_0198a88e-240e-4dd6-8aab-90ae6ff4e33b/bin/uautomizer/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_0198a88e-240e-4dd6-8aab-90ae6ff4e33b/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 0a8f096dedbbe798ef2fe808d4231fc7a503c17f .............................................................................................................................................................................................................................................................................................................................................................................................................................................. 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 21:54:54,382 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-15 21:54:54,383 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-15 21:54:54,399 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-15 21:54:54,399 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-15 21:54:54,401 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-15 21:54:54,403 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-15 21:54:54,412 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-15 21:54:54,414 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-15 21:54:54,415 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-15 21:54:54,415 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-15 21:54:54,416 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-15 21:54:54,417 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-15 21:54:54,418 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-15 21:54:54,419 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-15 21:54:54,420 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-15 21:54:54,420 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-15 21:54:54,421 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-15 21:54:54,423 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-15 21:54:54,424 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-15 21:54:54,426 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-15 21:54:54,427 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-15 21:54:54,428 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-15 21:54:54,428 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-15 21:54:54,431 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-15 21:54:54,431 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-15 21:54:54,431 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-15 21:54:54,432 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-15 21:54:54,432 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-15 21:54:54,433 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-15 21:54:54,433 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-15 21:54:54,434 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-15 21:54:54,435 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-15 21:54:54,435 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-15 21:54:54,436 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-15 21:54:54,436 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-15 21:54:54,437 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-15 21:54:54,437 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-15 21:54:54,437 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-15 21:54:54,438 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-15 21:54:54,439 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-15 21:54:54,439 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_0198a88e-240e-4dd6-8aab-90ae6ff4e33b/bin/uautomizer/config/svcomp-Overflow-64bit-Automizer_Default.epf [2019-11-15 21:54:54,471 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-15 21:54:54,471 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-15 21:54:54,472 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-15 21:54:54,473 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-15 21:54:54,473 INFO L138 SettingsManager]: * Use SBE=true [2019-11-15 21:54:54,473 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-15 21:54:54,473 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-15 21:54:54,474 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-15 21:54:54,474 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-15 21:54:54,474 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-15 21:54:54,474 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-15 21:54:54,474 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-15 21:54:54,475 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2019-11-15 21:54:54,475 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-15 21:54:54,475 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-15 21:54:54,475 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-15 21:54:54,476 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-15 21:54:54,476 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-15 21:54:54,476 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-15 21:54:54,476 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-15 21:54:54,476 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-15 21:54:54,477 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-15 21:54:54,477 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-15 21:54:54,477 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-15 21:54:54,477 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-15 21:54:54,478 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-15 21:54:54,478 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-15 21:54:54,478 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_0198a88e-240e-4dd6-8aab-90ae6ff4e33b/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 -> 0a8f096dedbbe798ef2fe808d4231fc7a503c17f [2019-11-15 21:54:54,506 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-15 21:54:54,517 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-15 21:54:54,529 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-15 21:54:54,530 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-15 21:54:54,533 INFO L275 PluginConnector]: CDTParser initialized [2019-11-15 21:54:54,534 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_0198a88e-240e-4dd6-8aab-90ae6ff4e33b/bin/uautomizer/../../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-cousot9.c [2019-11-15 21:54:54,606 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_0198a88e-240e-4dd6-8aab-90ae6ff4e33b/bin/uautomizer/data/9d1000068/b39166ab6f5845d1b72700168846e868/FLAG241b447c7 [2019-11-15 21:54:54,992 INFO L306 CDTParser]: Found 1 translation units. [2019-11-15 21:54:54,992 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_0198a88e-240e-4dd6-8aab-90ae6ff4e33b/sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-cousot9.c [2019-11-15 21:54:54,998 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_0198a88e-240e-4dd6-8aab-90ae6ff4e33b/bin/uautomizer/data/9d1000068/b39166ab6f5845d1b72700168846e868/FLAG241b447c7 [2019-11-15 21:54:55,432 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_0198a88e-240e-4dd6-8aab-90ae6ff4e33b/bin/uautomizer/data/9d1000068/b39166ab6f5845d1b72700168846e868 [2019-11-15 21:54:55,434 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-15 21:54:55,435 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-15 21:54:55,436 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-15 21:54:55,436 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-15 21:54:55,440 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-15 21:54:55,440 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.11 09:54:55" (1/1) ... [2019-11-15 21:54:55,443 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@21e964c4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 09:54:55, skipping insertion in model container [2019-11-15 21:54:55,444 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.11 09:54:55" (1/1) ... [2019-11-15 21:54:55,450 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-15 21:54:55,469 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-15 21:54:55,689 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-15 21:54:55,697 INFO L188 MainTranslator]: Completed pre-run [2019-11-15 21:54:55,712 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-15 21:54:55,725 INFO L192 MainTranslator]: Completed translation [2019-11-15 21:54:55,726 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 09:54:55 WrapperNode [2019-11-15 21:54:55,726 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-15 21:54:55,727 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-15 21:54:55,727 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-15 21:54:55,728 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-15 21:54:55,735 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 09:54:55" (1/1) ... [2019-11-15 21:54:55,738 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 09:54:55" (1/1) ... [2019-11-15 21:54:55,752 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-15 21:54:55,753 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-15 21:54:55,753 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-15 21:54:55,753 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-15 21:54:55,760 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 09:54:55" (1/1) ... [2019-11-15 21:54:55,760 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 09:54:55" (1/1) ... [2019-11-15 21:54:55,761 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 09:54:55" (1/1) ... [2019-11-15 21:54:55,761 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 09:54:55" (1/1) ... [2019-11-15 21:54:55,762 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 09:54:55" (1/1) ... [2019-11-15 21:54:55,765 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 09:54:55" (1/1) ... [2019-11-15 21:54:55,766 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 09:54:55" (1/1) ... [2019-11-15 21:54:55,767 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-15 21:54:55,767 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-15 21:54:55,767 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-15 21:54:55,768 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-15 21:54:55,768 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 09:54:55" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0198a88e-240e-4dd6-8aab-90ae6ff4e33b/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 21:54:55,821 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-15 21:54:55,822 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-15 21:54:55,971 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-15 21:54:55,972 INFO L284 CfgBuilder]: Removed 5 assume(true) statements. [2019-11-15 21:54:55,973 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 09:54:55 BoogieIcfgContainer [2019-11-15 21:54:55,973 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-15 21:54:55,974 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-15 21:54:55,974 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-15 21:54:55,976 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-15 21:54:55,976 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.11 09:54:55" (1/3) ... [2019-11-15 21:54:55,977 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f8d9b01 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.11 09:54:55, skipping insertion in model container [2019-11-15 21:54:55,977 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 09:54:55" (2/3) ... [2019-11-15 21:54:55,978 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f8d9b01 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.11 09:54:55, skipping insertion in model container [2019-11-15 21:54:55,978 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 09:54:55" (3/3) ... [2019-11-15 21:54:55,980 INFO L109 eAbstractionObserver]: Analyzing ICFG AliasDarteFeautrierGonnord-SAS2010-cousot9.c [2019-11-15 21:54:55,987 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-15 21:54:55,992 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 4 error locations. [2019-11-15 21:54:56,001 INFO L249 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2019-11-15 21:54:56,019 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-15 21:54:56,019 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-15 21:54:56,019 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-15 21:54:56,019 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-15 21:54:56,019 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-15 21:54:56,019 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-15 21:54:56,020 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-15 21:54:56,020 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-15 21:54:56,031 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states. [2019-11-15 21:54:56,036 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2019-11-15 21:54:56,037 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 21:54:56,037 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2019-11-15 21:54:56,039 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-15 21:54:56,044 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 21:54:56,044 INFO L82 PathProgramCache]: Analyzing trace with hash 963531, now seen corresponding path program 1 times [2019-11-15 21:54:56,053 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 21:54:56,053 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [253182771] [2019-11-15 21:54:56,054 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:54:56,054 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:54:56,054 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 21:54:56,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 21:54:56,174 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 21:54:56,175 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [253182771] [2019-11-15 21:54:56,175 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-15 21:54:56,176 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-11-15 21:54:56,176 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [451577182] [2019-11-15 21:54:56,180 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-15 21:54:56,180 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 21:54:56,193 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-15 21:54:56,194 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-15 21:54:56,196 INFO L87 Difference]: Start difference. First operand 15 states. Second operand 3 states. [2019-11-15 21:54:56,231 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 21:54:56,231 INFO L93 Difference]: Finished difference Result 19 states and 20 transitions. [2019-11-15 21:54:56,231 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-15 21:54:56,232 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 4 [2019-11-15 21:54:56,233 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 21:54:56,240 INFO L225 Difference]: With dead ends: 19 [2019-11-15 21:54:56,241 INFO L226 Difference]: Without dead ends: 10 [2019-11-15 21:54:56,244 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 21:54:56,260 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states. [2019-11-15 21:54:56,271 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 10. [2019-11-15 21:54:56,272 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2019-11-15 21:54:56,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 11 transitions. [2019-11-15 21:54:56,274 INFO L78 Accepts]: Start accepts. Automaton has 10 states and 11 transitions. Word has length 4 [2019-11-15 21:54:56,274 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 21:54:56,274 INFO L462 AbstractCegarLoop]: Abstraction has 10 states and 11 transitions. [2019-11-15 21:54:56,274 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-15 21:54:56,275 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 11 transitions. [2019-11-15 21:54:56,275 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2019-11-15 21:54:56,275 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 21:54:56,275 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2019-11-15 21:54:56,275 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-15 21:54:56,276 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 21:54:56,276 INFO L82 PathProgramCache]: Analyzing trace with hash 963339, now seen corresponding path program 1 times [2019-11-15 21:54:56,276 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 21:54:56,276 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [526226627] [2019-11-15 21:54:56,277 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:54:56,277 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:54:56,277 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 21:54:56,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 21:54:56,322 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 21:54:56,323 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [526226627] [2019-11-15 21:54:56,323 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-15 21:54:56,323 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-11-15 21:54:56,323 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [527000875] [2019-11-15 21:54:56,324 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-15 21:54:56,325 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 21:54:56,325 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-15 21:54:56,325 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-15 21:54:56,325 INFO L87 Difference]: Start difference. First operand 10 states and 11 transitions. Second operand 3 states. [2019-11-15 21:54:56,364 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 21:54:56,364 INFO L93 Difference]: Finished difference Result 15 states and 18 transitions. [2019-11-15 21:54:56,365 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-15 21:54:56,365 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 4 [2019-11-15 21:54:56,365 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 21:54:56,365 INFO L225 Difference]: With dead ends: 15 [2019-11-15 21:54:56,366 INFO L226 Difference]: Without dead ends: 14 [2019-11-15 21:54:56,367 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 21:54:56,367 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2019-11-15 21:54:56,369 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2019-11-15 21:54:56,370 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2019-11-15 21:54:56,370 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 17 transitions. [2019-11-15 21:54:56,370 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 17 transitions. Word has length 4 [2019-11-15 21:54:56,371 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 21:54:56,371 INFO L462 AbstractCegarLoop]: Abstraction has 14 states and 17 transitions. [2019-11-15 21:54:56,371 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-15 21:54:56,371 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 17 transitions. [2019-11-15 21:54:56,371 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2019-11-15 21:54:56,371 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 21:54:56,372 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2019-11-15 21:54:56,372 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-15 21:54:56,372 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 21:54:56,372 INFO L82 PathProgramCache]: Analyzing trace with hash 29869514, now seen corresponding path program 1 times [2019-11-15 21:54:56,372 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 21:54:56,373 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [938885602] [2019-11-15 21:54:56,373 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:54:56,373 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:54:56,373 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 21:54:56,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 21:54:56,407 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 21:54:56,408 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [938885602] [2019-11-15 21:54:56,408 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-15 21:54:56,408 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-15 21:54:56,408 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [670862447] [2019-11-15 21:54:56,409 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-15 21:54:56,409 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 21:54:56,409 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-15 21:54:56,409 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-15 21:54:56,409 INFO L87 Difference]: Start difference. First operand 14 states and 17 transitions. Second operand 3 states. [2019-11-15 21:54:56,431 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 21:54:56,431 INFO L93 Difference]: Finished difference Result 16 states and 19 transitions. [2019-11-15 21:54:56,439 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-15 21:54:56,439 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 5 [2019-11-15 21:54:56,439 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 21:54:56,439 INFO L225 Difference]: With dead ends: 16 [2019-11-15 21:54:56,440 INFO L226 Difference]: Without dead ends: 15 [2019-11-15 21:54:56,440 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 21:54:56,440 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2019-11-15 21:54:56,446 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 13. [2019-11-15 21:54:56,447 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2019-11-15 21:54:56,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 16 transitions. [2019-11-15 21:54:56,448 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 16 transitions. Word has length 5 [2019-11-15 21:54:56,448 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 21:54:56,448 INFO L462 AbstractCegarLoop]: Abstraction has 13 states and 16 transitions. [2019-11-15 21:54:56,448 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-15 21:54:56,448 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 16 transitions. [2019-11-15 21:54:56,449 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2019-11-15 21:54:56,449 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 21:54:56,449 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2019-11-15 21:54:56,450 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-15 21:54:56,450 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 21:54:56,452 INFO L82 PathProgramCache]: Analyzing trace with hash 29863556, now seen corresponding path program 1 times [2019-11-15 21:54:56,452 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 21:54:56,452 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [646289186] [2019-11-15 21:54:56,453 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:54:56,453 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:54:56,453 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 21:54:56,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 21:54:56,478 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 21:54:56,478 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [646289186] [2019-11-15 21:54:56,478 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-15 21:54:56,479 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-15 21:54:56,479 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1556906806] [2019-11-15 21:54:56,480 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-15 21:54:56,480 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 21:54:56,480 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-15 21:54:56,481 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-15 21:54:56,481 INFO L87 Difference]: Start difference. First operand 13 states and 16 transitions. Second operand 3 states. [2019-11-15 21:54:56,493 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 21:54:56,494 INFO L93 Difference]: Finished difference Result 13 states and 16 transitions. [2019-11-15 21:54:56,494 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-15 21:54:56,495 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 5 [2019-11-15 21:54:56,495 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 21:54:56,495 INFO L225 Difference]: With dead ends: 13 [2019-11-15 21:54:56,495 INFO L226 Difference]: Without dead ends: 12 [2019-11-15 21:54:56,496 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 21:54:56,496 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2019-11-15 21:54:56,498 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2019-11-15 21:54:56,498 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2019-11-15 21:54:56,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 14 transitions. [2019-11-15 21:54:56,499 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 14 transitions. Word has length 5 [2019-11-15 21:54:56,499 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 21:54:56,500 INFO L462 AbstractCegarLoop]: Abstraction has 12 states and 14 transitions. [2019-11-15 21:54:56,500 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-15 21:54:56,500 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 14 transitions. [2019-11-15 21:54:56,500 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-11-15 21:54:56,500 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 21:54:56,501 INFO L380 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2019-11-15 21:54:56,501 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-15 21:54:56,501 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 21:54:56,501 INFO L82 PathProgramCache]: Analyzing trace with hash 784501120, now seen corresponding path program 1 times [2019-11-15 21:54:56,502 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 21:54:56,502 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [441672101] [2019-11-15 21:54:56,502 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:54:56,502 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:54:56,502 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 21:54:56,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 21:54:56,561 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 21:54:56,561 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [441672101] [2019-11-15 21:54:56,561 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1470532595] [2019-11-15 21:54:56,562 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0198a88e-240e-4dd6-8aab-90ae6ff4e33b/bin/uautomizer/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-15 21:54:56,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 21:54:56,602 INFO L256 TraceCheckSpWp]: Trace formula consists of 23 conjuncts, 4 conjunts are in the unsatisfiable core [2019-11-15 21:54:56,606 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 21:54:56,657 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 21:54:56,657 INFO L223 tionRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-15 21:54:56,657 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 2] total 6 [2019-11-15 21:54:56,658 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1002926696] [2019-11-15 21:54:56,658 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-11-15 21:54:56,658 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 21:54:56,658 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-11-15 21:54:56,659 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2019-11-15 21:54:56,659 INFO L87 Difference]: Start difference. First operand 12 states and 14 transitions. Second operand 8 states. [2019-11-15 21:54:56,798 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 21:54:56,799 INFO L93 Difference]: Finished difference Result 14 states and 16 transitions. [2019-11-15 21:54:56,799 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-15 21:54:56,799 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 8 [2019-11-15 21:54:56,800 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 21:54:56,800 INFO L225 Difference]: With dead ends: 14 [2019-11-15 21:54:56,800 INFO L226 Difference]: Without dead ends: 0 [2019-11-15 21:54:56,800 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2019-11-15 21:54:56,801 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-15 21:54:56,801 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-15 21:54:56,801 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-15 21:54:56,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-15 21:54:56,801 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 8 [2019-11-15 21:54:56,801 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 21:54:56,801 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-15 21:54:56,802 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-11-15 21:54:56,802 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-15 21:54:56,802 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-15 21:54:57,002 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-15 21:54:57,006 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-11-15 21:54:57,042 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-11-15 21:54:57,042 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 20) no Hoare annotation was computed. [2019-11-15 21:54:57,043 INFO L443 ceAbstractionStarter]: For program point L23(line 23) no Hoare annotation was computed. [2019-11-15 21:54:57,043 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 23) no Hoare annotation was computed. [2019-11-15 21:54:57,043 INFO L443 ceAbstractionStarter]: For program point L23-1(line 23) no Hoare annotation was computed. [2019-11-15 21:54:57,043 INFO L443 ceAbstractionStarter]: For program point L19(lines 19 24) no Hoare annotation was computed. [2019-11-15 21:54:57,043 INFO L439 ceAbstractionStarter]: At program point L19-2(lines 18 25) the Hoare annotation is: (and (<= ULTIMATE.start_main_~j~0 2147483647) (<= ULTIMATE.start_main_~i~0 2147483647) (<= ULTIMATE.start_main_~N~0 2147483647)) [2019-11-15 21:54:57,043 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-11-15 21:54:57,043 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-11-15 21:54:57,043 INFO L439 ceAbstractionStarter]: At program point L26(lines 13 27) the Hoare annotation is: (<= ULTIMATE.start_main_~i~0 2147483647) [2019-11-15 21:54:57,043 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 23) no Hoare annotation was computed. [2019-11-15 21:54:57,044 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 20) no Hoare annotation was computed. [2019-11-15 21:54:57,044 INFO L443 ceAbstractionStarter]: For program point L20(line 20) no Hoare annotation was computed. [2019-11-15 21:54:57,044 INFO L443 ceAbstractionStarter]: For program point L20-1(line 20) no Hoare annotation was computed. [2019-11-15 21:54:57,044 INFO L443 ceAbstractionStarter]: For program point L18-2(lines 18 25) no Hoare annotation was computed. [2019-11-15 21:54:57,054 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.11 09:54:57 BoogieIcfgContainer [2019-11-15 21:54:57,054 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-15 21:54:57,055 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-15 21:54:57,055 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-15 21:54:57,055 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-15 21:54:57,056 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 09:54:55" (3/4) ... [2019-11-15 21:54:57,059 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-11-15 21:54:57,067 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2019-11-15 21:54:57,067 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2019-11-15 21:54:57,106 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_0198a88e-240e-4dd6-8aab-90ae6ff4e33b/bin/uautomizer/witness.graphml [2019-11-15 21:54:57,106 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-15 21:54:57,109 INFO L168 Benchmark]: Toolchain (without parser) took 1672.47 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 108.5 MB). Free memory was 950.1 MB in the beginning and 1.0 GB in the end (delta: -64.2 MB). Peak memory consumption was 44.3 MB. Max. memory is 11.5 GB. [2019-11-15 21:54:57,109 INFO L168 Benchmark]: CDTParser took 0.30 ms. Allocated memory is still 1.0 GB. Free memory is still 967.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-15 21:54:57,110 INFO L168 Benchmark]: CACSL2BoogieTranslator took 290.91 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 108.5 MB). Free memory was 950.1 MB in the beginning and 1.1 GB in the end (delta: -149.4 MB). Peak memory consumption was 22.8 MB. Max. memory is 11.5 GB. [2019-11-15 21:54:57,110 INFO L168 Benchmark]: Boogie Procedure Inliner took 25.39 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. [2019-11-15 21:54:57,111 INFO L168 Benchmark]: Boogie Preprocessor took 14.26 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. [2019-11-15 21:54:57,112 INFO L168 Benchmark]: RCFGBuilder took 205.61 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: 15.1 MB). Peak memory consumption was 15.1 MB. Max. memory is 11.5 GB. [2019-11-15 21:54:57,112 INFO L168 Benchmark]: TraceAbstraction took 1080.96 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: 70.1 MB). Peak memory consumption was 70.1 MB. Max. memory is 11.5 GB. [2019-11-15 21:54:57,113 INFO L168 Benchmark]: Witness Printer took 51.49 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. [2019-11-15 21:54:57,116 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30 ms. Allocated memory is still 1.0 GB. Free memory is still 967.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 290.91 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 108.5 MB). Free memory was 950.1 MB in the beginning and 1.1 GB in the end (delta: -149.4 MB). Peak memory consumption was 22.8 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 25.39 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 14.26 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. * RCFGBuilder took 205.61 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: 15.1 MB). Peak memory consumption was 15.1 MB. Max. memory is 11.5 GB. * TraceAbstraction took 1080.96 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: 70.1 MB). Peak memory consumption was 70.1 MB. Max. memory is 11.5 GB. * Witness Printer took 51.49 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: 20]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 20]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 23]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 23]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - AllSpecificationsHoldResult: All specifications hold 4 specifications checked. All of them hold - InvariantResult [Line: 13]: Loop Invariant Derived loop invariant: i <= 2147483647 - InvariantResult [Line: 18]: Loop Invariant Derived loop invariant: (j <= 2147483647 && i <= 2147483647) && N <= 2147483647 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 15 locations, 4 error locations. Result: SAFE, OverallTime: 1.0s, OverallIterations: 5, TraceHistogramMax: 2, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 31 SDtfs, 35 SDslu, 7 SDs, 0 SdLazy, 48 SolverSat, 15 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 20 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=15occurred 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, 5 MinimizatonAttempts, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 2 LocationsWithAnnotation, 2 PreInvPairs, 4 NumberOfFragments, 13 HoareAnnotationTreeSize, 2 FomulaSimplifications, 37 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 2 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 34 NumberOfCodeBlocks, 34 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 28 ConstructedInterpolants, 0 QuantifiedInterpolants, 448 SizeOfPredicates, 1 NumberOfNonLiveVariables, 23 ConjunctsInSsa, 4 ConjunctsInUnsatCore, 6 InterpolantComputations, 4 PerfectInterpolantSequences, 0/4 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...