./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-crafted-lit/CookSeeZuleger-TACAS2013-Fig7b.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 678e0110 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_96fa47dc-6aa3-496b-804c-ea04f01672cb/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_96fa47dc-6aa3-496b-804c-ea04f01672cb/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_96fa47dc-6aa3-496b-804c-ea04f01672cb/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_96fa47dc-6aa3-496b-804c-ea04f01672cb/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/termination-crafted-lit/CookSeeZuleger-TACAS2013-Fig7b.c -s /tmp/vcloud-vcloud-master/worker/run_dir_96fa47dc-6aa3-496b-804c-ea04f01672cb/bin/uautomizer/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_96fa47dc-6aa3-496b-804c-ea04f01672cb/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 41d35d9d9785c70c81ceac96efa22b5a4097e6f4 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-678e011 [2019-11-20 02:53:57,456 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-20 02:53:57,458 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-20 02:53:57,474 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-20 02:53:57,475 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-20 02:53:57,477 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-20 02:53:57,479 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-20 02:53:57,489 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-20 02:53:57,494 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-20 02:53:57,498 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-20 02:53:57,499 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-20 02:53:57,501 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-20 02:53:57,501 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-20 02:53:57,504 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-20 02:53:57,506 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-20 02:53:57,507 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-20 02:53:57,508 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-20 02:53:57,511 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-20 02:53:57,513 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-20 02:53:57,518 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-20 02:53:57,522 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-20 02:53:57,525 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-20 02:53:57,527 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-20 02:53:57,528 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-20 02:53:57,532 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-20 02:53:57,532 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-20 02:53:57,532 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-20 02:53:57,534 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-20 02:53:57,535 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-20 02:53:57,536 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-20 02:53:57,536 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-20 02:53:57,537 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-20 02:53:57,538 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-20 02:53:57,539 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-20 02:53:57,540 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-20 02:53:57,540 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-20 02:53:57,541 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-20 02:53:57,541 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-20 02:53:57,542 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-20 02:53:57,543 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-20 02:53:57,544 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-20 02:53:57,545 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_96fa47dc-6aa3-496b-804c-ea04f01672cb/bin/uautomizer/config/svcomp-Overflow-64bit-Automizer_Default.epf [2019-11-20 02:53:57,585 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-20 02:53:57,585 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-20 02:53:57,586 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-20 02:53:57,586 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-20 02:53:57,587 INFO L138 SettingsManager]: * Use SBE=true [2019-11-20 02:53:57,587 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-20 02:53:57,587 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-20 02:53:57,588 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-20 02:53:57,588 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-20 02:53:57,588 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-20 02:53:57,588 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-20 02:53:57,589 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-20 02:53:57,589 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2019-11-20 02:53:57,589 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-20 02:53:57,589 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-20 02:53:57,590 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-20 02:53:57,590 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-20 02:53:57,590 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-20 02:53:57,590 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-20 02:53:57,591 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-20 02:53:57,591 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-20 02:53:57,591 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-20 02:53:57,592 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-20 02:53:57,592 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-20 02:53:57,592 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-20 02:53:57,592 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-20 02:53:57,593 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-20 02:53:57,593 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_96fa47dc-6aa3-496b-804c-ea04f01672cb/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 -> 41d35d9d9785c70c81ceac96efa22b5a4097e6f4 [2019-11-20 02:53:57,755 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-20 02:53:57,768 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-20 02:53:57,771 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-20 02:53:57,773 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-20 02:53:57,773 INFO L275 PluginConnector]: CDTParser initialized [2019-11-20 02:53:57,774 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_96fa47dc-6aa3-496b-804c-ea04f01672cb/bin/uautomizer/../../sv-benchmarks/c/termination-crafted-lit/CookSeeZuleger-TACAS2013-Fig7b.c [2019-11-20 02:53:57,838 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_96fa47dc-6aa3-496b-804c-ea04f01672cb/bin/uautomizer/data/437f29983/62f9cfa9924248fdb6c440687c8efd28/FLAGc145713eb [2019-11-20 02:53:58,275 INFO L306 CDTParser]: Found 1 translation units. [2019-11-20 02:53:58,276 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_96fa47dc-6aa3-496b-804c-ea04f01672cb/sv-benchmarks/c/termination-crafted-lit/CookSeeZuleger-TACAS2013-Fig7b.c [2019-11-20 02:53:58,284 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_96fa47dc-6aa3-496b-804c-ea04f01672cb/bin/uautomizer/data/437f29983/62f9cfa9924248fdb6c440687c8efd28/FLAGc145713eb [2019-11-20 02:53:58,682 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_96fa47dc-6aa3-496b-804c-ea04f01672cb/bin/uautomizer/data/437f29983/62f9cfa9924248fdb6c440687c8efd28 [2019-11-20 02:53:58,688 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-20 02:53:58,689 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-20 02:53:58,696 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-20 02:53:58,696 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-20 02:53:58,700 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-20 02:53:58,701 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 02:53:58" (1/1) ... [2019-11-20 02:53:58,703 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@61dceabe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 02:53:58, skipping insertion in model container [2019-11-20 02:53:58,704 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 02:53:58" (1/1) ... [2019-11-20 02:53:58,712 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-20 02:53:58,730 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-20 02:53:58,899 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 02:53:58,903 INFO L188 MainTranslator]: Completed pre-run [2019-11-20 02:53:59,005 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 02:53:59,018 INFO L192 MainTranslator]: Completed translation [2019-11-20 02:53:59,018 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 02:53:59 WrapperNode [2019-11-20 02:53:59,018 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-20 02:53:59,019 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-20 02:53:59,019 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-20 02:53:59,019 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-20 02:53:59,027 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 02:53:59" (1/1) ... [2019-11-20 02:53:59,031 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 02:53:59" (1/1) ... [2019-11-20 02:53:59,048 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-20 02:53:59,049 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-20 02:53:59,049 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-20 02:53:59,049 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-20 02:53:59,059 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 02:53:59" (1/1) ... [2019-11-20 02:53:59,060 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 02:53:59" (1/1) ... [2019-11-20 02:53:59,061 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 02:53:59" (1/1) ... [2019-11-20 02:53:59,061 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 02:53:59" (1/1) ... [2019-11-20 02:53:59,064 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 02:53:59" (1/1) ... [2019-11-20 02:53:59,071 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 02:53:59" (1/1) ... [2019-11-20 02:53:59,078 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 02:53:59" (1/1) ... [2019-11-20 02:53:59,088 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-20 02:53:59,089 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-20 02:53:59,089 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-20 02:53:59,089 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-20 02:53:59,090 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 02:53:59" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_96fa47dc-6aa3-496b-804c-ea04f01672cb/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 [2019-11-20 02:53:59,168 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-20 02:53:59,169 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-20 02:53:59,418 INFO L280 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-20 02:53:59,418 INFO L285 CfgBuilder]: Removed 5 assume(true) statements. [2019-11-20 02:53:59,420 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 02:53:59 BoogieIcfgContainer [2019-11-20 02:53:59,420 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-20 02:53:59,421 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-20 02:53:59,421 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-20 02:53:59,425 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-20 02:53:59,425 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 02:53:58" (1/3) ... [2019-11-20 02:53:59,426 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c225070 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 02:53:59, skipping insertion in model container [2019-11-20 02:53:59,427 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 02:53:59" (2/3) ... [2019-11-20 02:53:59,427 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c225070 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 02:53:59, skipping insertion in model container [2019-11-20 02:53:59,428 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 02:53:59" (3/3) ... [2019-11-20 02:53:59,429 INFO L109 eAbstractionObserver]: Analyzing ICFG CookSeeZuleger-TACAS2013-Fig7b.c [2019-11-20 02:53:59,440 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-20 02:53:59,447 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 6 error locations. [2019-11-20 02:53:59,461 INFO L249 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2019-11-20 02:53:59,502 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-20 02:53:59,516 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-20 02:53:59,517 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-20 02:53:59,517 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-20 02:53:59,517 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-20 02:53:59,517 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-20 02:53:59,518 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-20 02:53:59,518 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-20 02:53:59,545 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states. [2019-11-20 02:53:59,551 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2019-11-20 02:53:59,564 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 02:53:59,566 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2019-11-20 02:53:59,566 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-20 02:53:59,573 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 02:53:59,574 INFO L82 PathProgramCache]: Analyzing trace with hash 963339, now seen corresponding path program 1 times [2019-11-20 02:53:59,603 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 02:53:59,603 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1831599948] [2019-11-20 02:53:59,603 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 02:53:59,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 02:53:59,815 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 02:53:59,816 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1831599948] [2019-11-20 02:53:59,817 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 02:53:59,817 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-11-20 02:53:59,819 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1077887455] [2019-11-20 02:53:59,824 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-20 02:53:59,824 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 02:53:59,839 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-20 02:53:59,840 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-20 02:53:59,842 INFO L87 Difference]: Start difference. First operand 20 states. Second operand 3 states. [2019-11-20 02:53:59,891 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 02:53:59,892 INFO L93 Difference]: Finished difference Result 24 states and 26 transitions. [2019-11-20 02:53:59,893 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-20 02:53:59,894 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 4 [2019-11-20 02:53:59,895 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 02:53:59,906 INFO L225 Difference]: With dead ends: 24 [2019-11-20 02:53:59,906 INFO L226 Difference]: Without dead ends: 15 [2019-11-20 02:53:59,909 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-20 02:53:59,929 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2019-11-20 02:53:59,943 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2019-11-20 02:53:59,944 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2019-11-20 02:53:59,945 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 17 transitions. [2019-11-20 02:53:59,947 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 17 transitions. Word has length 4 [2019-11-20 02:53:59,947 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 02:53:59,947 INFO L462 AbstractCegarLoop]: Abstraction has 15 states and 17 transitions. [2019-11-20 02:53:59,948 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-20 02:53:59,948 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 17 transitions. [2019-11-20 02:53:59,948 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2019-11-20 02:53:59,949 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 02:53:59,949 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2019-11-20 02:53:59,949 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-20 02:53:59,950 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 02:53:59,950 INFO L82 PathProgramCache]: Analyzing trace with hash 29869546, now seen corresponding path program 1 times [2019-11-20 02:53:59,950 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 02:53:59,951 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [493317441] [2019-11-20 02:53:59,951 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 02:53:59,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 02:53:59,978 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 02:53:59,979 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [493317441] [2019-11-20 02:53:59,979 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 02:53:59,979 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-11-20 02:53:59,979 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1200412536] [2019-11-20 02:53:59,981 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-20 02:53:59,981 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 02:53:59,981 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-20 02:53:59,981 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-20 02:53:59,982 INFO L87 Difference]: Start difference. First operand 15 states and 17 transitions. Second operand 3 states. [2019-11-20 02:54:00,008 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 02:54:00,009 INFO L93 Difference]: Finished difference Result 15 states and 17 transitions. [2019-11-20 02:54:00,009 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-20 02:54:00,009 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 5 [2019-11-20 02:54:00,010 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 02:54:00,010 INFO L225 Difference]: With dead ends: 15 [2019-11-20 02:54:00,010 INFO L226 Difference]: Without dead ends: 14 [2019-11-20 02:54:00,011 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-20 02:54:00,012 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2019-11-20 02:54:00,015 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2019-11-20 02:54:00,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2019-11-20 02:54:00,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 16 transitions. [2019-11-20 02:54:00,016 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 16 transitions. Word has length 5 [2019-11-20 02:54:00,016 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 02:54:00,017 INFO L462 AbstractCegarLoop]: Abstraction has 14 states and 16 transitions. [2019-11-20 02:54:00,017 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-20 02:54:00,017 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 16 transitions. [2019-11-20 02:54:00,017 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2019-11-20 02:54:00,018 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 02:54:00,018 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2019-11-20 02:54:00,018 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-20 02:54:00,019 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 02:54:00,019 INFO L82 PathProgramCache]: Analyzing trace with hash 29869738, now seen corresponding path program 1 times [2019-11-20 02:54:00,019 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 02:54:00,020 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1587169828] [2019-11-20 02:54:00,020 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 02:54:00,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 02:54:00,048 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 02:54:00,049 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1587169828] [2019-11-20 02:54:00,049 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 02:54:00,049 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-11-20 02:54:00,049 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2027132439] [2019-11-20 02:54:00,050 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-20 02:54:00,050 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 02:54:00,050 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-20 02:54:00,051 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-20 02:54:00,051 INFO L87 Difference]: Start difference. First operand 14 states and 16 transitions. Second operand 3 states. [2019-11-20 02:54:00,064 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 02:54:00,064 INFO L93 Difference]: Finished difference Result 14 states and 16 transitions. [2019-11-20 02:54:00,065 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-20 02:54:00,065 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 5 [2019-11-20 02:54:00,065 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 02:54:00,066 INFO L225 Difference]: With dead ends: 14 [2019-11-20 02:54:00,066 INFO L226 Difference]: Without dead ends: 13 [2019-11-20 02:54:00,067 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-20 02:54:00,067 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2019-11-20 02:54:00,069 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2019-11-20 02:54:00,070 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2019-11-20 02:54:00,070 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 15 transitions. [2019-11-20 02:54:00,070 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 15 transitions. Word has length 5 [2019-11-20 02:54:00,071 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 02:54:00,071 INFO L462 AbstractCegarLoop]: Abstraction has 13 states and 15 transitions. [2019-11-20 02:54:00,071 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-20 02:54:00,071 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 15 transitions. [2019-11-20 02:54:00,071 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2019-11-20 02:54:00,072 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 02:54:00,072 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2019-11-20 02:54:00,072 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-20 02:54:00,073 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 02:54:00,073 INFO L82 PathProgramCache]: Analyzing trace with hash 29863556, now seen corresponding path program 1 times [2019-11-20 02:54:00,073 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 02:54:00,073 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1895472305] [2019-11-20 02:54:00,074 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 02:54:00,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 02:54:00,115 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 02:54:00,115 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1895472305] [2019-11-20 02:54:00,115 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 02:54:00,115 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-20 02:54:00,115 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [152404173] [2019-11-20 02:54:00,116 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-20 02:54:00,116 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 02:54:00,116 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-20 02:54:00,116 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-20 02:54:00,116 INFO L87 Difference]: Start difference. First operand 13 states and 15 transitions. Second operand 3 states. [2019-11-20 02:54:00,132 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 02:54:00,132 INFO L93 Difference]: Finished difference Result 14 states and 16 transitions. [2019-11-20 02:54:00,133 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-20 02:54:00,133 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 5 [2019-11-20 02:54:00,133 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 02:54:00,134 INFO L225 Difference]: With dead ends: 14 [2019-11-20 02:54:00,134 INFO L226 Difference]: Without dead ends: 13 [2019-11-20 02:54:00,135 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-20 02:54:00,135 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2019-11-20 02:54:00,138 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 12. [2019-11-20 02:54:00,138 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2019-11-20 02:54:00,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 14 transitions. [2019-11-20 02:54:00,139 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 14 transitions. Word has length 5 [2019-11-20 02:54:00,139 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 02:54:00,139 INFO L462 AbstractCegarLoop]: Abstraction has 12 states and 14 transitions. [2019-11-20 02:54:00,139 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-20 02:54:00,140 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 14 transitions. [2019-11-20 02:54:00,140 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2019-11-20 02:54:00,140 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 02:54:00,140 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2019-11-20 02:54:00,141 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-20 02:54:00,141 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 02:54:00,141 INFO L82 PathProgramCache]: Analyzing trace with hash 925955982, now seen corresponding path program 1 times [2019-11-20 02:54:00,142 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 02:54:00,142 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1662042503] [2019-11-20 02:54:00,142 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 02:54:00,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 02:54:00,165 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 02:54:00,165 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1662042503] [2019-11-20 02:54:00,166 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 02:54:00,166 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-20 02:54:00,166 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [188489422] [2019-11-20 02:54:00,166 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-20 02:54:00,167 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 02:54:00,167 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-20 02:54:00,167 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-20 02:54:00,167 INFO L87 Difference]: Start difference. First operand 12 states and 14 transitions. Second operand 3 states. [2019-11-20 02:54:00,179 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 02:54:00,180 INFO L93 Difference]: Finished difference Result 13 states and 15 transitions. [2019-11-20 02:54:00,180 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-20 02:54:00,180 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 6 [2019-11-20 02:54:00,181 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 02:54:00,181 INFO L225 Difference]: With dead ends: 13 [2019-11-20 02:54:00,181 INFO L226 Difference]: Without dead ends: 12 [2019-11-20 02:54:00,182 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-20 02:54:00,182 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2019-11-20 02:54:00,184 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 11. [2019-11-20 02:54:00,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2019-11-20 02:54:00,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 13 transitions. [2019-11-20 02:54:00,185 INFO L78 Accepts]: Start accepts. Automaton has 11 states and 13 transitions. Word has length 6 [2019-11-20 02:54:00,185 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 02:54:00,186 INFO L462 AbstractCegarLoop]: Abstraction has 11 states and 13 transitions. [2019-11-20 02:54:00,186 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-20 02:54:00,186 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 13 transitions. [2019-11-20 02:54:00,186 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2019-11-20 02:54:00,186 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 02:54:00,187 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2019-11-20 02:54:00,187 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-20 02:54:00,187 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 02:54:00,188 INFO L82 PathProgramCache]: Analyzing trace with hash 925961940, now seen corresponding path program 1 times [2019-11-20 02:54:00,188 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 02:54:00,188 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2011010485] [2019-11-20 02:54:00,188 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 02:54:00,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 02:54:00,211 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 02:54:00,211 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2011010485] [2019-11-20 02:54:00,212 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 02:54:00,212 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-20 02:54:00,212 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [476064788] [2019-11-20 02:54:00,213 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-20 02:54:00,213 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 02:54:00,213 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-20 02:54:00,213 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-20 02:54:00,214 INFO L87 Difference]: Start difference. First operand 11 states and 13 transitions. Second operand 3 states. [2019-11-20 02:54:00,232 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 02:54:00,232 INFO L93 Difference]: Finished difference Result 12 states and 14 transitions. [2019-11-20 02:54:00,233 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-20 02:54:00,233 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 6 [2019-11-20 02:54:00,233 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 02:54:00,233 INFO L225 Difference]: With dead ends: 12 [2019-11-20 02:54:00,233 INFO L226 Difference]: Without dead ends: 0 [2019-11-20 02:54:00,234 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-20 02:54:00,234 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-20 02:54:00,234 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-20 02:54:00,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-20 02:54:00,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-20 02:54:00,235 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 6 [2019-11-20 02:54:00,235 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 02:54:00,235 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-20 02:54:00,236 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-20 02:54:00,236 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-20 02:54:00,236 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-20 02:54:00,241 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-11-20 02:54:00,302 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 22) no Hoare annotation was computed. [2019-11-20 02:54:00,302 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-11-20 02:54:00,302 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 24) no Hoare annotation was computed. [2019-11-20 02:54:00,302 INFO L440 ceAbstractionStarter]: At program point L31(lines 15 32) the Hoare annotation is: (<= ULTIMATE.start_main_~x~0 2147483647) [2019-11-20 02:54:00,303 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW(line 27) no Hoare annotation was computed. [2019-11-20 02:54:00,303 INFO L444 ceAbstractionStarter]: For program point L27(line 27) no Hoare annotation was computed. [2019-11-20 02:54:00,303 INFO L444 ceAbstractionStarter]: For program point L27-1(line 27) no Hoare annotation was computed. [2019-11-20 02:54:00,303 INFO L444 ceAbstractionStarter]: For program point L23(lines 23 29) no Hoare annotation was computed. [2019-11-20 02:54:00,303 INFO L444 ceAbstractionStarter]: For program point L21(lines 21 29) no Hoare annotation was computed. [2019-11-20 02:54:00,304 INFO L440 ceAbstractionStarter]: At program point L23-2(lines 20 30) the Hoare annotation is: (and (<= ULTIMATE.start_main_~x~0 2147483647) (<= ULTIMATE.start_main_~z~0 2147483647) (<= ULTIMATE.start_main_~y~0 2147483647)) [2019-11-20 02:54:00,304 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 22) no Hoare annotation was computed. [2019-11-20 02:54:00,304 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 24) no Hoare annotation was computed. [2019-11-20 02:54:00,304 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-11-20 02:54:00,304 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW(line 27) no Hoare annotation was computed. [2019-11-20 02:54:00,304 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-11-20 02:54:00,305 INFO L444 ceAbstractionStarter]: For program point L24(line 24) no Hoare annotation was computed. [2019-11-20 02:54:00,305 INFO L444 ceAbstractionStarter]: For program point L24-1(line 24) no Hoare annotation was computed. [2019-11-20 02:54:00,305 INFO L444 ceAbstractionStarter]: For program point L22(line 22) no Hoare annotation was computed. [2019-11-20 02:54:00,305 INFO L444 ceAbstractionStarter]: For program point L22-1(line 22) no Hoare annotation was computed. [2019-11-20 02:54:00,305 INFO L444 ceAbstractionStarter]: For program point L20-2(lines 20 30) no Hoare annotation was computed. [2019-11-20 02:54:00,321 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.11 02:54:00 BoogieIcfgContainer [2019-11-20 02:54:00,321 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-20 02:54:00,322 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-20 02:54:00,322 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-20 02:54:00,322 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-20 02:54:00,323 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 02:53:59" (3/4) ... [2019-11-20 02:54:00,326 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-11-20 02:54:00,338 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2019-11-20 02:54:00,339 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2019-11-20 02:54:00,423 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_96fa47dc-6aa3-496b-804c-ea04f01672cb/bin/uautomizer/witness.graphml [2019-11-20 02:54:00,423 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-20 02:54:00,426 INFO L168 Benchmark]: Toolchain (without parser) took 1735.89 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 128.5 MB). Free memory was 950.1 MB in the beginning and 1.0 GB in the end (delta: -97.9 MB). Peak memory consumption was 30.6 MB. Max. memory is 11.5 GB. [2019-11-20 02:54:00,426 INFO L168 Benchmark]: CDTParser took 0.29 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. [2019-11-20 02:54:00,427 INFO L168 Benchmark]: CACSL2BoogieTranslator took 322.65 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 128.5 MB). Free memory was 950.1 MB in the beginning and 1.1 GB in the end (delta: -172.8 MB). Peak memory consumption was 24.7 MB. Max. memory is 11.5 GB. [2019-11-20 02:54:00,427 INFO L168 Benchmark]: Boogie Procedure Inliner took 29.88 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 02:54:00,428 INFO L168 Benchmark]: Boogie Preprocessor took 39.52 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 3.4 MB). Peak memory consumption was 3.4 MB. Max. memory is 11.5 GB. [2019-11-20 02:54:00,428 INFO L168 Benchmark]: RCFGBuilder took 331.25 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 23.4 MB). Peak memory consumption was 23.4 MB. Max. memory is 11.5 GB. [2019-11-20 02:54:00,429 INFO L168 Benchmark]: TraceAbstraction took 900.54 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 48.0 MB). Peak memory consumption was 48.0 MB. Max. memory is 11.5 GB. [2019-11-20 02:54:00,429 INFO L168 Benchmark]: Witness Printer took 101.73 ms. Allocated memory is still 1.2 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 02:54:00,432 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29 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 322.65 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 128.5 MB). Free memory was 950.1 MB in the beginning and 1.1 GB in the end (delta: -172.8 MB). Peak memory consumption was 24.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 29.88 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 39.52 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 3.4 MB). Peak memory consumption was 3.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 331.25 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 23.4 MB). Peak memory consumption was 23.4 MB. Max. memory is 11.5 GB. * TraceAbstraction took 900.54 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 48.0 MB). Peak memory consumption was 48.0 MB. Max. memory is 11.5 GB. * Witness Printer took 101.73 ms. Allocated memory is still 1.2 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: 24]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 27]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 27]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 22]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 24]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 22]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - AllSpecificationsHoldResult: All specifications hold 6 specifications checked. All of them hold - InvariantResult [Line: 15]: Loop Invariant Derived loop invariant: x <= 2147483647 - InvariantResult [Line: 20]: Loop Invariant Derived loop invariant: (x <= 2147483647 && z <= 2147483647) && y <= 2147483647 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 20 locations, 6 error locations. Result: SAFE, OverallTime: 0.8s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 72 SDtfs, 56 SDslu, 0 SDs, 0 SdLazy, 30 SolverSat, 5 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=20occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 6 MinimizatonAttempts, 2 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 2 LocationsWithAnnotation, 2 PreInvPairs, 4 NumberOfFragments, 13 HoareAnnotationTreeSize, 2 FomulaSimplifications, 98 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 2 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 31 NumberOfCodeBlocks, 31 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 25 ConstructedInterpolants, 0 QuantifiedInterpolants, 293 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...