./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-crafted/Waldkirch.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_c073ca38-479e-44a2-9438-4b7a6ea7e275/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_c073ca38-479e-44a2-9438-4b7a6ea7e275/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_c073ca38-479e-44a2-9438-4b7a6ea7e275/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_c073ca38-479e-44a2-9438-4b7a6ea7e275/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/termination-crafted/Waldkirch.c -s /tmp/vcloud-vcloud-master/worker/run_dir_c073ca38-479e-44a2-9438-4b7a6ea7e275/bin/uautomizer/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_c073ca38-479e-44a2-9438-4b7a6ea7e275/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 7a10ccd42123994759390bf7d921442c28e0623a ...................................................................................................................................................................................................................................................................................................... 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 22:22:28,597 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-15 22:22:28,598 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-15 22:22:28,609 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-15 22:22:28,609 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-15 22:22:28,610 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-15 22:22:28,611 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-15 22:22:28,613 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-15 22:22:28,615 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-15 22:22:28,616 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-15 22:22:28,617 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-15 22:22:28,618 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-15 22:22:28,618 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-15 22:22:28,619 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-15 22:22:28,620 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-15 22:22:28,621 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-15 22:22:28,622 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-15 22:22:28,623 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-15 22:22:28,624 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-15 22:22:28,626 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-15 22:22:28,628 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-15 22:22:28,629 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-15 22:22:28,630 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-15 22:22:28,630 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-15 22:22:28,632 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-15 22:22:28,633 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-15 22:22:28,633 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-15 22:22:28,634 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-15 22:22:28,634 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-15 22:22:28,635 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-15 22:22:28,635 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-15 22:22:28,636 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-15 22:22:28,637 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-15 22:22:28,637 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-15 22:22:28,638 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-15 22:22:28,638 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-15 22:22:28,639 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-15 22:22:28,639 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-15 22:22:28,639 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-15 22:22:28,640 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-15 22:22:28,641 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-15 22:22:28,642 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_c073ca38-479e-44a2-9438-4b7a6ea7e275/bin/uautomizer/config/svcomp-Overflow-64bit-Automizer_Default.epf [2019-11-15 22:22:28,654 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-15 22:22:28,654 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-15 22:22:28,655 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-15 22:22:28,656 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-15 22:22:28,656 INFO L138 SettingsManager]: * Use SBE=true [2019-11-15 22:22:28,656 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-15 22:22:28,656 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-15 22:22:28,657 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-15 22:22:28,657 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-15 22:22:28,657 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-15 22:22:28,657 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-15 22:22:28,658 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-15 22:22:28,658 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2019-11-15 22:22:28,658 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-15 22:22:28,658 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-15 22:22:28,659 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-15 22:22:28,659 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-15 22:22:28,659 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-15 22:22:28,659 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-15 22:22:28,660 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-15 22:22:28,660 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-15 22:22:28,660 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-15 22:22:28,660 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-15 22:22:28,661 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-15 22:22:28,661 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-15 22:22:28,661 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-15 22:22:28,661 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-15 22:22:28,661 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_c073ca38-479e-44a2-9438-4b7a6ea7e275/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 -> 7a10ccd42123994759390bf7d921442c28e0623a [2019-11-15 22:22:28,687 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-15 22:22:28,696 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-15 22:22:28,699 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-15 22:22:28,702 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-15 22:22:28,702 INFO L275 PluginConnector]: CDTParser initialized [2019-11-15 22:22:28,703 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_c073ca38-479e-44a2-9438-4b7a6ea7e275/bin/uautomizer/../../sv-benchmarks/c/termination-crafted/Waldkirch.c [2019-11-15 22:22:28,760 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_c073ca38-479e-44a2-9438-4b7a6ea7e275/bin/uautomizer/data/e8e8ff850/34f7152f37a745e0af6378f4e67e97a6/FLAG6d1e45d1a [2019-11-15 22:22:29,155 INFO L306 CDTParser]: Found 1 translation units. [2019-11-15 22:22:29,156 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_c073ca38-479e-44a2-9438-4b7a6ea7e275/sv-benchmarks/c/termination-crafted/Waldkirch.c [2019-11-15 22:22:29,162 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_c073ca38-479e-44a2-9438-4b7a6ea7e275/bin/uautomizer/data/e8e8ff850/34f7152f37a745e0af6378f4e67e97a6/FLAG6d1e45d1a [2019-11-15 22:22:29,179 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_c073ca38-479e-44a2-9438-4b7a6ea7e275/bin/uautomizer/data/e8e8ff850/34f7152f37a745e0af6378f4e67e97a6 [2019-11-15 22:22:29,183 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-15 22:22:29,185 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-15 22:22:29,188 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-15 22:22:29,188 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-15 22:22:29,192 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-15 22:22:29,193 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.11 10:22:29" (1/1) ... [2019-11-15 22:22:29,196 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6136fe7f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:22:29, skipping insertion in model container [2019-11-15 22:22:29,196 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.11 10:22:29" (1/1) ... [2019-11-15 22:22:29,210 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-15 22:22:29,225 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-15 22:22:29,394 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-15 22:22:29,398 INFO L188 MainTranslator]: Completed pre-run [2019-11-15 22:22:29,471 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-15 22:22:29,486 INFO L192 MainTranslator]: Completed translation [2019-11-15 22:22:29,487 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:22:29 WrapperNode [2019-11-15 22:22:29,487 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-15 22:22:29,488 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-15 22:22:29,489 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-15 22:22:29,489 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-15 22:22:29,498 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:22:29" (1/1) ... [2019-11-15 22:22:29,503 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:22:29" (1/1) ... [2019-11-15 22:22:29,522 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-15 22:22:29,522 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-15 22:22:29,524 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-15 22:22:29,524 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-15 22:22:29,533 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:22:29" (1/1) ... [2019-11-15 22:22:29,533 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:22:29" (1/1) ... [2019-11-15 22:22:29,534 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:22:29" (1/1) ... [2019-11-15 22:22:29,534 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:22:29" (1/1) ... [2019-11-15 22:22:29,536 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:22:29" (1/1) ... [2019-11-15 22:22:29,541 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:22:29" (1/1) ... [2019-11-15 22:22:29,542 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:22:29" (1/1) ... [2019-11-15 22:22:29,543 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-15 22:22:29,544 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-15 22:22:29,544 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-15 22:22:29,544 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-15 22:22:29,545 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:22:29" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c073ca38-479e-44a2-9438-4b7a6ea7e275/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 22:22:29,609 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-15 22:22:29,609 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-15 22:22:29,771 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-15 22:22:29,771 INFO L284 CfgBuilder]: Removed 5 assume(true) statements. [2019-11-15 22:22:29,772 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 10:22:29 BoogieIcfgContainer [2019-11-15 22:22:29,772 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-15 22:22:29,773 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-15 22:22:29,774 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-15 22:22:29,776 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-15 22:22:29,777 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.11 10:22:29" (1/3) ... [2019-11-15 22:22:29,777 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@59cc7217 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.11 10:22:29, skipping insertion in model container [2019-11-15 22:22:29,777 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:22:29" (2/3) ... [2019-11-15 22:22:29,778 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@59cc7217 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.11 10:22:29, skipping insertion in model container [2019-11-15 22:22:29,778 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 10:22:29" (3/3) ... [2019-11-15 22:22:29,780 INFO L109 eAbstractionObserver]: Analyzing ICFG Waldkirch.c [2019-11-15 22:22:29,790 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-15 22:22:29,801 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2019-11-15 22:22:29,818 INFO L249 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2019-11-15 22:22:29,836 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-15 22:22:29,836 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-15 22:22:29,836 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-15 22:22:29,836 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-15 22:22:29,837 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-15 22:22:29,837 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-15 22:22:29,837 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-15 22:22:29,838 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-15 22:22:29,848 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states. [2019-11-15 22:22:29,853 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2019-11-15 22:22:29,853 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 22:22:29,854 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1] [2019-11-15 22:22:29,856 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-15 22:22:29,861 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 22:22:29,861 INFO L82 PathProgramCache]: Analyzing trace with hash 31073, now seen corresponding path program 1 times [2019-11-15 22:22:29,869 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 22:22:29,869 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [304685963] [2019-11-15 22:22:29,870 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 22:22:29,870 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 22:22:29,870 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 22:22:29,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:22:29,971 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 22:22:29,972 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [304685963] [2019-11-15 22:22:29,972 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-15 22:22:29,973 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-11-15 22:22:29,973 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1384503214] [2019-11-15 22:22:29,976 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-15 22:22:29,977 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 22:22:29,985 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-15 22:22:29,986 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-15 22:22:29,988 INFO L87 Difference]: Start difference. First operand 10 states. Second operand 3 states. [2019-11-15 22:22:30,033 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 22:22:30,033 INFO L93 Difference]: Finished difference Result 14 states and 14 transitions. [2019-11-15 22:22:30,034 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-15 22:22:30,035 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 3 [2019-11-15 22:22:30,036 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 22:22:30,042 INFO L225 Difference]: With dead ends: 14 [2019-11-15 22:22:30,042 INFO L226 Difference]: Without dead ends: 5 [2019-11-15 22:22:30,044 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 22:22:30,056 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5 states. [2019-11-15 22:22:30,064 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5 to 5. [2019-11-15 22:22:30,065 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2019-11-15 22:22:30,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 5 transitions. [2019-11-15 22:22:30,067 INFO L78 Accepts]: Start accepts. Automaton has 5 states and 5 transitions. Word has length 3 [2019-11-15 22:22:30,067 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 22:22:30,068 INFO L462 AbstractCegarLoop]: Abstraction has 5 states and 5 transitions. [2019-11-15 22:22:30,068 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-15 22:22:30,068 INFO L276 IsEmpty]: Start isEmpty. Operand 5 states and 5 transitions. [2019-11-15 22:22:30,068 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2019-11-15 22:22:30,068 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 22:22:30,068 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2019-11-15 22:22:30,069 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-15 22:22:30,069 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 22:22:30,069 INFO L82 PathProgramCache]: Analyzing trace with hash 963307, now seen corresponding path program 1 times [2019-11-15 22:22:30,069 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 22:22:30,070 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [615408016] [2019-11-15 22:22:30,070 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 22:22:30,070 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 22:22:30,070 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 22:22:30,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:22:30,092 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 22:22:30,092 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [615408016] [2019-11-15 22:22:30,093 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-15 22:22:30,093 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-15 22:22:30,093 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1645801354] [2019-11-15 22:22:30,094 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-15 22:22:30,094 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 22:22:30,095 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-15 22:22:30,095 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-15 22:22:30,095 INFO L87 Difference]: Start difference. First operand 5 states and 5 transitions. Second operand 3 states. [2019-11-15 22:22:30,111 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 22:22:30,111 INFO L93 Difference]: Finished difference Result 5 states and 5 transitions. [2019-11-15 22:22:30,112 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-15 22:22:30,112 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 4 [2019-11-15 22:22:30,112 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 22:22:30,112 INFO L225 Difference]: With dead ends: 5 [2019-11-15 22:22:30,112 INFO L226 Difference]: Without dead ends: 0 [2019-11-15 22:22:30,113 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 22:22:30,113 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-15 22:22:30,113 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-15 22:22:30,114 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-15 22:22:30,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-15 22:22:30,114 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 4 [2019-11-15 22:22:30,114 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 22:22:30,114 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-15 22:22:30,114 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-15 22:22:30,114 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-15 22:22:30,115 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-15 22:22:30,119 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-11-15 22:22:30,157 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 15) no Hoare annotation was computed. [2019-11-15 22:22:30,158 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-11-15 22:22:30,158 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-11-15 22:22:30,158 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-11-15 22:22:30,158 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 15) no Hoare annotation was computed. [2019-11-15 22:22:30,158 INFO L439 ceAbstractionStarter]: At program point L17(lines 11 18) the Hoare annotation is: (<= ULTIMATE.start_main_~x~0 2147483647) [2019-11-15 22:22:30,159 INFO L443 ceAbstractionStarter]: For program point L15(line 15) no Hoare annotation was computed. [2019-11-15 22:22:30,159 INFO L443 ceAbstractionStarter]: For program point L15-1(line 15) no Hoare annotation was computed. [2019-11-15 22:22:30,159 INFO L439 ceAbstractionStarter]: At program point L14-2(lines 14 16) the Hoare annotation is: (<= ULTIMATE.start_main_~x~0 2147483647) [2019-11-15 22:22:30,159 INFO L443 ceAbstractionStarter]: For program point L14-3(lines 14 16) no Hoare annotation was computed. [2019-11-15 22:22:30,175 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.11 10:22:30 BoogieIcfgContainer [2019-11-15 22:22:30,176 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-15 22:22:30,176 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-15 22:22:30,176 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-15 22:22:30,176 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-15 22:22:30,177 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 10:22:29" (3/4) ... [2019-11-15 22:22:30,180 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-11-15 22:22:30,189 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2019-11-15 22:22:30,189 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2019-11-15 22:22:30,237 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_c073ca38-479e-44a2-9438-4b7a6ea7e275/bin/uautomizer/witness.graphml [2019-11-15 22:22:30,237 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-15 22:22:30,239 INFO L168 Benchmark]: Toolchain (without parser) took 1053.88 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 116.4 MB). Free memory was 944.7 MB in the beginning and 1.1 GB in the end (delta: -115.0 MB). Peak memory consumption was 1.4 MB. Max. memory is 11.5 GB. [2019-11-15 22:22:30,240 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 22:22:30,240 INFO L168 Benchmark]: CACSL2BoogieTranslator took 300.18 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 116.4 MB). Free memory was 944.7 MB in the beginning and 1.1 GB in the end (delta: -162.1 MB). Peak memory consumption was 23.2 MB. Max. memory is 11.5 GB. [2019-11-15 22:22:30,241 INFO L168 Benchmark]: Boogie Procedure Inliner took 33.78 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 22:22:30,241 INFO L168 Benchmark]: Boogie Preprocessor took 21.24 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 22:22:30,242 INFO L168 Benchmark]: RCFGBuilder took 228.81 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: 17.1 MB). Peak memory consumption was 17.1 MB. Max. memory is 11.5 GB. [2019-11-15 22:22:30,242 INFO L168 Benchmark]: TraceAbstraction took 402.31 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: 28.3 MB). Peak memory consumption was 28.3 MB. Max. memory is 11.5 GB. [2019-11-15 22:22:30,243 INFO L168 Benchmark]: Witness Printer took 61.22 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: 1.8 MB). Peak memory consumption was 1.8 MB. Max. memory is 11.5 GB. [2019-11-15 22:22:30,246 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 300.18 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 116.4 MB). Free memory was 944.7 MB in the beginning and 1.1 GB in the end (delta: -162.1 MB). Peak memory consumption was 23.2 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 33.78 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 21.24 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 228.81 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: 17.1 MB). Peak memory consumption was 17.1 MB. Max. memory is 11.5 GB. * TraceAbstraction took 402.31 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: 28.3 MB). Peak memory consumption was 28.3 MB. Max. memory is 11.5 GB. * Witness Printer took 61.22 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: 1.8 MB). Peak memory consumption was 1.8 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 15]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 15]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold - InvariantResult [Line: 11]: Loop Invariant Derived loop invariant: x <= 2147483647 - InvariantResult [Line: 14]: Loop Invariant Derived loop invariant: x <= 2147483647 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 10 locations, 2 error locations. Result: SAFE, OverallTime: 0.3s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 6 SDtfs, 6 SDslu, 0 SDs, 0 SdLazy, 9 SolverSat, 1 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=10occurred 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, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 2 LocationsWithAnnotation, 2 PreInvPairs, 3 NumberOfFragments, 6 HoareAnnotationTreeSize, 2 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 2 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 7 NumberOfCodeBlocks, 7 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 5 ConstructedInterpolants, 0 QuantifiedInterpolants, 33 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...