./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-crafted/MenloPark.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_6bc2dc7d-b57e-4a49-a80b-af471f9e4d33/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_6bc2dc7d-b57e-4a49-a80b-af471f9e4d33/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_6bc2dc7d-b57e-4a49-a80b-af471f9e4d33/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_6bc2dc7d-b57e-4a49-a80b-af471f9e4d33/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/termination-crafted/MenloPark.c -s /tmp/vcloud-vcloud-master/worker/run_dir_6bc2dc7d-b57e-4a49-a80b-af471f9e4d33/bin/utaipan/config/svcomp-Overflow-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_6bc2dc7d-b57e-4a49-a80b-af471f9e4d33/bin/utaipan --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 Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 7c87c9e4b733dad657e6ff9e27a5e9b26a2c3764 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-30 01:54:46,446 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-30 01:54:46,448 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-30 01:54:46,514 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-30 01:54:46,515 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-30 01:54:46,520 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-30 01:54:46,523 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-30 01:54:46,530 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-30 01:54:46,534 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-30 01:54:46,539 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-30 01:54:46,540 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-30 01:54:46,542 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-30 01:54:46,543 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-30 01:54:46,546 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-30 01:54:46,547 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-30 01:54:46,548 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-30 01:54:46,549 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-30 01:54:46,550 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-30 01:54:46,552 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-30 01:54:46,554 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-30 01:54:46,556 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-30 01:54:46,562 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-30 01:54:46,563 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-30 01:54:46,565 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-30 01:54:46,568 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-30 01:54:46,575 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-30 01:54:46,575 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-30 01:54:46,576 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-30 01:54:46,578 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-30 01:54:46,579 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-30 01:54:46,580 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-30 01:54:46,581 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-30 01:54:46,583 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-30 01:54:46,584 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-30 01:54:46,585 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-30 01:54:46,585 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-30 01:54:46,586 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-30 01:54:46,586 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-30 01:54:46,586 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-30 01:54:46,587 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-30 01:54:46,588 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-30 01:54:46,590 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_6bc2dc7d-b57e-4a49-a80b-af471f9e4d33/bin/utaipan/config/svcomp-Overflow-64bit-Taipan_Default.epf [2020-11-30 01:54:46,631 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-30 01:54:46,635 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-30 01:54:46,636 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-11-30 01:54:46,637 INFO L138 SettingsManager]: * User list type=DISABLED [2020-11-30 01:54:46,637 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-11-30 01:54:46,637 INFO L138 SettingsManager]: * Explicit value domain=true [2020-11-30 01:54:46,637 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2020-11-30 01:54:46,638 INFO L138 SettingsManager]: * Octagon Domain=false [2020-11-30 01:54:46,638 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-11-30 01:54:46,638 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2020-11-30 01:54:46,639 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2020-11-30 01:54:46,639 INFO L138 SettingsManager]: * Interval Domain=false [2020-11-30 01:54:46,640 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2020-11-30 01:54:46,640 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2020-11-30 01:54:46,640 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2020-11-30 01:54:46,641 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-30 01:54:46,641 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-30 01:54:46,641 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-30 01:54:46,642 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-30 01:54:46,642 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-30 01:54:46,642 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-30 01:54:46,642 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-30 01:54:46,643 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2020-11-30 01:54:46,643 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-30 01:54:46,643 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-30 01:54:46,643 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-30 01:54:46,644 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-30 01:54:46,644 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-30 01:54:46,644 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-30 01:54:46,644 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-30 01:54:46,645 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-30 01:54:46,645 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-30 01:54:46,645 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-30 01:54:46,645 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2020-11-30 01:54:46,646 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-30 01:54:46,646 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-30 01:54:46,646 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-30 01:54:46,646 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-11-30 01:54:46,647 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud-vcloud-master/worker/run_dir_6bc2dc7d-b57e-4a49-a80b-af471f9e4d33/bin/utaipan/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_6bc2dc7d-b57e-4a49-a80b-af471f9e4d33/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7c87c9e4b733dad657e6ff9e27a5e9b26a2c3764 [2020-11-30 01:54:46,907 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-30 01:54:46,948 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-30 01:54:46,951 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-30 01:54:46,952 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-30 01:54:46,953 INFO L275 PluginConnector]: CDTParser initialized [2020-11-30 01:54:46,954 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_6bc2dc7d-b57e-4a49-a80b-af471f9e4d33/bin/utaipan/../../sv-benchmarks/c/termination-crafted/MenloPark.c [2020-11-30 01:54:47,035 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_6bc2dc7d-b57e-4a49-a80b-af471f9e4d33/bin/utaipan/data/4cc1b75b2/736443568b844e2888e65ed304129323/FLAG1f470475b [2020-11-30 01:54:47,430 INFO L306 CDTParser]: Found 1 translation units. [2020-11-30 01:54:47,431 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_6bc2dc7d-b57e-4a49-a80b-af471f9e4d33/sv-benchmarks/c/termination-crafted/MenloPark.c [2020-11-30 01:54:47,437 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_6bc2dc7d-b57e-4a49-a80b-af471f9e4d33/bin/utaipan/data/4cc1b75b2/736443568b844e2888e65ed304129323/FLAG1f470475b [2020-11-30 01:54:47,831 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_6bc2dc7d-b57e-4a49-a80b-af471f9e4d33/bin/utaipan/data/4cc1b75b2/736443568b844e2888e65ed304129323 [2020-11-30 01:54:47,833 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-30 01:54:47,834 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-30 01:54:47,835 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-30 01:54:47,836 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-30 01:54:47,839 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-30 01:54:47,839 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 01:54:47" (1/1) ... [2020-11-30 01:54:47,853 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3441d49 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:54:47, skipping insertion in model container [2020-11-30 01:54:47,853 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 01:54:47" (1/1) ... [2020-11-30 01:54:47,860 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-30 01:54:47,876 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-30 01:54:48,013 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 01:54:48,037 INFO L203 MainTranslator]: Completed pre-run [2020-11-30 01:54:48,050 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 01:54:48,062 INFO L208 MainTranslator]: Completed translation [2020-11-30 01:54:48,062 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:54:48 WrapperNode [2020-11-30 01:54:48,062 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-30 01:54:48,064 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-30 01:54:48,064 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-30 01:54:48,064 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-30 01:54:48,077 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:54:48" (1/1) ... [2020-11-30 01:54:48,083 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:54:48" (1/1) ... [2020-11-30 01:54:48,105 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-30 01:54:48,107 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-30 01:54:48,107 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-30 01:54:48,107 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-30 01:54:48,115 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:54:48" (1/1) ... [2020-11-30 01:54:48,115 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:54:48" (1/1) ... [2020-11-30 01:54:48,116 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:54:48" (1/1) ... [2020-11-30 01:54:48,117 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:54:48" (1/1) ... [2020-11-30 01:54:48,120 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:54:48" (1/1) ... [2020-11-30 01:54:48,124 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:54:48" (1/1) ... [2020-11-30 01:54:48,125 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:54:48" (1/1) ... [2020-11-30 01:54:48,131 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-30 01:54:48,133 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-30 01:54:48,133 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-30 01:54:48,133 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-30 01:54:48,134 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:54:48" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_6bc2dc7d-b57e-4a49-a80b-af471f9e4d33/bin/utaipan/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 [2020-11-30 01:54:48,195 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-30 01:54:48,195 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-30 01:54:48,460 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-30 01:54:48,461 INFO L298 CfgBuilder]: Removed 5 assume(true) statements. [2020-11-30 01:54:48,463 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 01:54:48 BoogieIcfgContainer [2020-11-30 01:54:48,463 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-30 01:54:48,465 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-30 01:54:48,465 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-30 01:54:48,468 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-30 01:54:48,468 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.11 01:54:47" (1/3) ... [2020-11-30 01:54:48,469 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@84c043e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 01:54:48, skipping insertion in model container [2020-11-30 01:54:48,469 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:54:48" (2/3) ... [2020-11-30 01:54:48,470 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@84c043e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 01:54:48, skipping insertion in model container [2020-11-30 01:54:48,470 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 01:54:48" (3/3) ... [2020-11-30 01:54:48,471 INFO L111 eAbstractionObserver]: Analyzing ICFG MenloPark.c [2020-11-30 01:54:48,482 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-30 01:54:48,486 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 6 error locations. [2020-11-30 01:54:48,497 INFO L253 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2020-11-30 01:54:48,523 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-30 01:54:48,523 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-30 01:54:48,524 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-30 01:54:48,524 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-30 01:54:48,524 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-30 01:54:48,524 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-30 01:54:48,524 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-30 01:54:48,524 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-30 01:54:48,538 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states. [2020-11-30 01:54:48,541 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2020-11-30 01:54:48,542 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 01:54:48,542 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1] [2020-11-30 01:54:48,543 INFO L429 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]=== [2020-11-30 01:54:48,562 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:54:48,577 INFO L82 PathProgramCache]: Analyzing trace with hash 31073, now seen corresponding path program 1 times [2020-11-30 01:54:48,586 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-30 01:54:48,587 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1713852491] [2020-11-30 01:54:48,587 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:54:48,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:54:48,780 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:54:48,781 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1713852491] [2020-11-30 01:54:48,782 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 01:54:48,782 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-11-30 01:54:48,783 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2020278250] [2020-11-30 01:54:48,787 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-30 01:54:48,787 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-30 01:54:48,812 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-30 01:54:48,829 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 01:54:48,832 INFO L87 Difference]: Start difference. First operand 15 states. Second operand 3 states. [2020-11-30 01:54:48,920 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 01:54:48,920 INFO L93 Difference]: Finished difference Result 20 states and 21 transitions. [2020-11-30 01:54:48,921 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-30 01:54:48,922 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 3 [2020-11-30 01:54:48,923 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 01:54:48,929 INFO L225 Difference]: With dead ends: 20 [2020-11-30 01:54:48,930 INFO L226 Difference]: Without dead ends: 17 [2020-11-30 01:54:48,932 INFO L677 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 [2020-11-30 01:54:48,953 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2020-11-30 01:54:48,978 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 16. [2020-11-30 01:54:48,979 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2020-11-30 01:54:48,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 16 transitions. [2020-11-30 01:54:48,982 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 16 transitions. Word has length 3 [2020-11-30 01:54:48,982 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 01:54:48,989 INFO L481 AbstractCegarLoop]: Abstraction has 16 states and 16 transitions. [2020-11-30 01:54:48,997 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-30 01:54:48,997 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 16 transitions. [2020-11-30 01:54:48,997 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-11-30 01:54:48,997 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 01:54:48,998 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2020-11-30 01:54:48,998 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-30 01:54:48,999 INFO L429 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]=== [2020-11-30 01:54:49,003 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:54:49,003 INFO L82 PathProgramCache]: Analyzing trace with hash 963307, now seen corresponding path program 1 times [2020-11-30 01:54:49,003 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-30 01:54:49,004 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1290709771] [2020-11-30 01:54:49,004 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:54:49,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:54:49,035 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:54:49,036 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1290709771] [2020-11-30 01:54:49,036 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 01:54:49,036 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-30 01:54:49,037 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1489130968] [2020-11-30 01:54:49,038 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-30 01:54:49,038 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-30 01:54:49,039 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-30 01:54:49,040 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-30 01:54:49,040 INFO L87 Difference]: Start difference. First operand 16 states and 16 transitions. Second operand 4 states. [2020-11-30 01:54:49,099 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 01:54:49,100 INFO L93 Difference]: Finished difference Result 22 states and 22 transitions. [2020-11-30 01:54:49,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-30 01:54:49,101 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 4 [2020-11-30 01:54:49,101 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 01:54:49,101 INFO L225 Difference]: With dead ends: 22 [2020-11-30 01:54:49,101 INFO L226 Difference]: Without dead ends: 21 [2020-11-30 01:54:49,102 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-11-30 01:54:49,103 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2020-11-30 01:54:49,106 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 17. [2020-11-30 01:54:49,106 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2020-11-30 01:54:49,106 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 17 transitions. [2020-11-30 01:54:49,107 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 17 transitions. Word has length 4 [2020-11-30 01:54:49,107 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 01:54:49,107 INFO L481 AbstractCegarLoop]: Abstraction has 17 states and 17 transitions. [2020-11-30 01:54:49,107 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-30 01:54:49,107 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 17 transitions. [2020-11-30 01:54:49,108 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-11-30 01:54:49,108 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 01:54:49,108 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2020-11-30 01:54:49,108 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-30 01:54:49,109 INFO L429 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]=== [2020-11-30 01:54:49,109 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:54:49,110 INFO L82 PathProgramCache]: Analyzing trace with hash 29862563, now seen corresponding path program 1 times [2020-11-30 01:54:49,110 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-30 01:54:49,110 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [933685354] [2020-11-30 01:54:49,110 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:54:49,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:54:49,145 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:54:49,145 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [933685354] [2020-11-30 01:54:49,145 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 01:54:49,146 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-11-30 01:54:49,146 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2058389617] [2020-11-30 01:54:49,146 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-30 01:54:49,146 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-30 01:54:49,147 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-30 01:54:49,148 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 01:54:49,148 INFO L87 Difference]: Start difference. First operand 17 states and 17 transitions. Second operand 3 states. [2020-11-30 01:54:49,193 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 01:54:49,194 INFO L93 Difference]: Finished difference Result 20 states and 21 transitions. [2020-11-30 01:54:49,195 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-30 01:54:49,195 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 5 [2020-11-30 01:54:49,195 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 01:54:49,196 INFO L225 Difference]: With dead ends: 20 [2020-11-30 01:54:49,196 INFO L226 Difference]: Without dead ends: 19 [2020-11-30 01:54:49,196 INFO L677 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 [2020-11-30 01:54:49,197 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2020-11-30 01:54:49,200 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 18. [2020-11-30 01:54:49,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2020-11-30 01:54:49,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 18 transitions. [2020-11-30 01:54:49,201 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 18 transitions. Word has length 5 [2020-11-30 01:54:49,201 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 01:54:49,201 INFO L481 AbstractCegarLoop]: Abstraction has 18 states and 18 transitions. [2020-11-30 01:54:49,201 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-30 01:54:49,201 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 18 transitions. [2020-11-30 01:54:49,202 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-11-30 01:54:49,202 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 01:54:49,202 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2020-11-30 01:54:49,202 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-30 01:54:49,202 INFO L429 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]=== [2020-11-30 01:54:49,203 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:54:49,203 INFO L82 PathProgramCache]: Analyzing trace with hash 925739501, now seen corresponding path program 1 times [2020-11-30 01:54:49,203 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-30 01:54:49,204 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [855508781] [2020-11-30 01:54:49,204 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:54:49,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:54:49,254 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:54:49,254 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [855508781] [2020-11-30 01:54:49,254 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 01:54:49,255 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-11-30 01:54:49,255 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [386930712] [2020-11-30 01:54:49,255 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-30 01:54:49,256 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-30 01:54:49,256 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-30 01:54:49,257 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 01:54:49,257 INFO L87 Difference]: Start difference. First operand 18 states and 18 transitions. Second operand 3 states. [2020-11-30 01:54:49,289 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 01:54:49,289 INFO L93 Difference]: Finished difference Result 20 states and 20 transitions. [2020-11-30 01:54:49,290 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-30 01:54:49,290 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 6 [2020-11-30 01:54:49,290 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 01:54:49,291 INFO L225 Difference]: With dead ends: 20 [2020-11-30 01:54:49,291 INFO L226 Difference]: Without dead ends: 19 [2020-11-30 01:54:49,291 INFO L677 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 [2020-11-30 01:54:49,292 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2020-11-30 01:54:49,295 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2020-11-30 01:54:49,295 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2020-11-30 01:54:49,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 19 transitions. [2020-11-30 01:54:49,296 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 19 transitions. Word has length 6 [2020-11-30 01:54:49,296 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 01:54:49,296 INFO L481 AbstractCegarLoop]: Abstraction has 19 states and 19 transitions. [2020-11-30 01:54:49,296 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-30 01:54:49,296 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 19 transitions. [2020-11-30 01:54:49,297 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-11-30 01:54:49,297 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 01:54:49,297 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-11-30 01:54:49,297 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-11-30 01:54:49,298 INFO L429 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]=== [2020-11-30 01:54:49,298 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:54:49,299 INFO L82 PathProgramCache]: Analyzing trace with hash -1366846491, now seen corresponding path program 1 times [2020-11-30 01:54:49,299 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-30 01:54:49,299 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1072898303] [2020-11-30 01:54:49,299 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:54:49,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:54:49,340 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:54:49,341 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1072898303] [2020-11-30 01:54:49,341 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 01:54:49,341 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-11-30 01:54:49,341 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1000443833] [2020-11-30 01:54:49,341 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-30 01:54:49,342 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-30 01:54:49,342 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-30 01:54:49,342 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 01:54:49,343 INFO L87 Difference]: Start difference. First operand 19 states and 19 transitions. Second operand 3 states. [2020-11-30 01:54:49,372 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 01:54:49,372 INFO L93 Difference]: Finished difference Result 22 states and 23 transitions. [2020-11-30 01:54:49,372 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-30 01:54:49,373 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 7 [2020-11-30 01:54:49,373 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 01:54:49,373 INFO L225 Difference]: With dead ends: 22 [2020-11-30 01:54:49,373 INFO L226 Difference]: Without dead ends: 21 [2020-11-30 01:54:49,374 INFO L677 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 [2020-11-30 01:54:49,374 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2020-11-30 01:54:49,377 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 20. [2020-11-30 01:54:49,377 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2020-11-30 01:54:49,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 20 transitions. [2020-11-30 01:54:49,378 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 20 transitions. Word has length 7 [2020-11-30 01:54:49,378 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 01:54:49,378 INFO L481 AbstractCegarLoop]: Abstraction has 20 states and 20 transitions. [2020-11-30 01:54:49,378 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-30 01:54:49,378 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 20 transitions. [2020-11-30 01:54:49,379 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-11-30 01:54:49,379 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 01:54:49,379 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 01:54:49,379 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-11-30 01:54:49,380 INFO L429 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]=== [2020-11-30 01:54:49,380 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:54:49,380 INFO L82 PathProgramCache]: Analyzing trace with hash 577431791, now seen corresponding path program 1 times [2020-11-30 01:54:49,380 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-30 01:54:49,381 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1283854622] [2020-11-30 01:54:49,381 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:54:49,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:54:49,403 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:54:49,403 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1283854622] [2020-11-30 01:54:49,404 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 01:54:49,404 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-11-30 01:54:49,404 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1398989515] [2020-11-30 01:54:49,404 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-30 01:54:49,405 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-30 01:54:49,405 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-30 01:54:49,406 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 01:54:49,406 INFO L87 Difference]: Start difference. First operand 20 states and 20 transitions. Second operand 3 states. [2020-11-30 01:54:49,425 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 01:54:49,426 INFO L93 Difference]: Finished difference Result 22 states and 22 transitions. [2020-11-30 01:54:49,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-30 01:54:49,427 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2020-11-30 01:54:49,427 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 01:54:49,428 INFO L225 Difference]: With dead ends: 22 [2020-11-30 01:54:49,428 INFO L226 Difference]: Without dead ends: 21 [2020-11-30 01:54:49,429 INFO L677 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 [2020-11-30 01:54:49,429 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2020-11-30 01:54:49,431 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2020-11-30 01:54:49,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2020-11-30 01:54:49,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 21 transitions. [2020-11-30 01:54:49,432 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 21 transitions. Word has length 8 [2020-11-30 01:54:49,433 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 01:54:49,433 INFO L481 AbstractCegarLoop]: Abstraction has 21 states and 21 transitions. [2020-11-30 01:54:49,433 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-30 01:54:49,433 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 21 transitions. [2020-11-30 01:54:49,433 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-11-30 01:54:49,434 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 01:54:49,434 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 01:54:49,434 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-11-30 01:54:49,437 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-11-30 01:54:49,441 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:54:49,441 INFO L82 PathProgramCache]: Analyzing trace with hash 861171249, now seen corresponding path program 1 times [2020-11-30 01:54:49,441 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-30 01:54:49,441 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1862180866] [2020-11-30 01:54:49,441 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:54:49,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:54:49,508 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:54:49,508 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1862180866] [2020-11-30 01:54:49,508 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1100630939] [2020-11-30 01:54:49,508 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_6bc2dc7d-b57e-4a49-a80b-af471f9e4d33/bin/utaipan/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2020-11-30 01:54:49,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-30 01:54:49,565 INFO L263 TraceCheckSpWp]: Trace formula consists of 25 conjuncts, 7 conjunts are in the unsatisfiable core [2020-11-30 01:54:49,571 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 01:54:49,675 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:54:49,675 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-30 01:54:49,718 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:54:49,718 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [192766487] [2020-11-30 01:54:49,737 INFO L159 IcfgInterpreter]: Started Sifa with 9 locations of interest [2020-11-30 01:54:49,737 INFO L166 IcfgInterpreter]: Building call graph [2020-11-30 01:54:49,742 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2020-11-30 01:54:49,747 INFO L176 IcfgInterpreter]: Starting interpretation [2020-11-30 01:54:49,748 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2020-11-30 01:54:49,963 INFO L180 IcfgInterpreter]: Interpretation finished [2020-11-30 01:54:50,465 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 3 imperfect interpolant sequences. [2020-11-30 01:54:50,466 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [3, 3, 3] total 13 [2020-11-30 01:54:50,467 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1385464960] [2020-11-30 01:54:50,467 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-30 01:54:50,467 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-30 01:54:50,468 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-30 01:54:50,468 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=143, Unknown=0, NotChecked=0, Total=210 [2020-11-30 01:54:50,468 INFO L87 Difference]: Start difference. First operand 21 states and 21 transitions. Second operand 6 states. [2020-11-30 01:54:50,525 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 01:54:50,525 INFO L93 Difference]: Finished difference Result 21 states and 21 transitions. [2020-11-30 01:54:50,526 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-30 01:54:50,526 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 10 [2020-11-30 01:54:50,526 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 01:54:50,526 INFO L225 Difference]: With dead ends: 21 [2020-11-30 01:54:50,526 INFO L226 Difference]: Without dead ends: 0 [2020-11-30 01:54:50,527 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 14 SyntacticMatches, 4 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 74 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=67, Invalid=143, Unknown=0, NotChecked=0, Total=210 [2020-11-30 01:54:50,527 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-30 01:54:50,528 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-30 01:54:50,528 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-11-30 01:54:50,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-30 01:54:50,528 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 10 [2020-11-30 01:54:50,528 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 01:54:50,528 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-30 01:54:50,528 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-11-30 01:54:50,528 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-30 01:54:50,529 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-30 01:54:50,729 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2020-11-30 01:54:50,731 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-11-30 01:54:50,839 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 23) no Hoare annotation was computed. [2020-11-30 01:54:50,839 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-11-30 01:54:50,839 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 24) no Hoare annotation was computed. [2020-11-30 01:54:50,839 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW(line 25) no Hoare annotation was computed. [2020-11-30 01:54:50,840 INFO L274 CegarLoopResult]: For program point L25(line 25) no Hoare annotation was computed. [2020-11-30 01:54:50,840 INFO L274 CegarLoopResult]: For program point L25-1(line 25) no Hoare annotation was computed. [2020-11-30 01:54:50,840 INFO L274 CegarLoopResult]: For program point L23(line 23) no Hoare annotation was computed. [2020-11-30 01:54:50,840 INFO L274 CegarLoopResult]: For program point L23-1(line 23) no Hoare annotation was computed. [2020-11-30 01:54:50,840 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 23) no Hoare annotation was computed. [2020-11-30 01:54:50,840 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 24) no Hoare annotation was computed. [2020-11-30 01:54:50,840 INFO L274 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-11-30 01:54:50,840 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW(line 25) no Hoare annotation was computed. [2020-11-30 01:54:50,841 INFO L274 CegarLoopResult]: For program point L24(line 24) no Hoare annotation was computed. [2020-11-30 01:54:50,841 INFO L274 CegarLoopResult]: For program point L24-1(line 24) no Hoare annotation was computed. [2020-11-30 01:54:50,842 INFO L270 CegarLoopResult]: At program point L22-2(lines 22 26) the Hoare annotation is: (and (<= 0 (+ ULTIMATE.start_main_~x~0 2147483648)) (or (let ((.cse0 (+ ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~y~0))) (and (<= .cse0 (+ ULTIMATE.start_main_~z~0 2147483647)) (= (+ ULTIMATE.start_main_~z~0 1) 0) (= ULTIMATE.start_main_~y~0 (+ ULTIMATE.start_main_~z~0 100)) (<= ULTIMATE.start_main_~z~0 .cse0))) (and (<= ULTIMATE.start_main_~x~0 2147483647) (= ULTIMATE.start_main_~y~0 100) (= ULTIMATE.start_main_~z~0 1)))) [2020-11-30 01:54:50,871 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.11 01:54:50 BoogieIcfgContainer [2020-11-30 01:54:50,871 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-30 01:54:50,872 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-30 01:54:50,872 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-30 01:54:50,872 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-30 01:54:50,873 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 01:54:48" (3/4) ... [2020-11-30 01:54:50,878 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-11-30 01:54:50,892 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2020-11-30 01:54:50,892 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2020-11-30 01:54:50,892 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-30 01:54:50,920 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_6bc2dc7d-b57e-4a49-a80b-af471f9e4d33/bin/utaipan/witness.graphml [2020-11-30 01:54:50,921 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-30 01:54:50,922 INFO L168 Benchmark]: Toolchain (without parser) took 3087.12 ms. Allocated memory was 92.3 MB in the beginning and 111.1 MB in the end (delta: 18.9 MB). Free memory was 63.2 MB in the beginning and 89.3 MB in the end (delta: -26.1 MB). Peak memory consumption was 40.6 MB. Max. memory is 16.1 GB. [2020-11-30 01:54:50,922 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 92.3 MB. Free memory is still 51.4 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 01:54:50,923 INFO L168 Benchmark]: CACSL2BoogieTranslator took 227.39 ms. Allocated memory is still 92.3 MB. Free memory was 62.9 MB in the beginning and 72.1 MB in the end (delta: -9.1 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-30 01:54:50,923 INFO L168 Benchmark]: Boogie Procedure Inliner took 41.90 ms. Allocated memory is still 92.3 MB. Free memory was 71.7 MB in the beginning and 70.5 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 01:54:50,924 INFO L168 Benchmark]: Boogie Preprocessor took 25.08 ms. Allocated memory is still 92.3 MB. Free memory was 70.5 MB in the beginning and 69.6 MB in the end (delta: 897.1 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-30 01:54:50,924 INFO L168 Benchmark]: RCFGBuilder took 330.46 ms. Allocated memory is still 92.3 MB. Free memory was 69.6 MB in the beginning and 59.1 MB in the end (delta: 10.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-30 01:54:50,925 INFO L168 Benchmark]: TraceAbstraction took 2406.71 ms. Allocated memory was 92.3 MB in the beginning and 111.1 MB in the end (delta: 18.9 MB). Free memory was 58.7 MB in the beginning and 45.1 MB in the end (delta: 13.6 MB). Peak memory consumption was 33.7 MB. Max. memory is 16.1 GB. [2020-11-30 01:54:50,925 INFO L168 Benchmark]: Witness Printer took 48.78 ms. Allocated memory is still 111.1 MB. Free memory was 45.1 MB in the beginning and 89.3 MB in the end (delta: -44.2 MB). Peak memory consumption was 3.6 MB. Max. memory is 16.1 GB. [2020-11-30 01:54:50,928 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 92.3 MB. Free memory is still 51.4 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 227.39 ms. Allocated memory is still 92.3 MB. Free memory was 62.9 MB in the beginning and 72.1 MB in the end (delta: -9.1 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 41.90 ms. Allocated memory is still 92.3 MB. Free memory was 71.7 MB in the beginning and 70.5 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 25.08 ms. Allocated memory is still 92.3 MB. Free memory was 70.5 MB in the beginning and 69.6 MB in the end (delta: 897.1 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 330.46 ms. Allocated memory is still 92.3 MB. Free memory was 69.6 MB in the beginning and 59.1 MB in the end (delta: 10.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * TraceAbstraction took 2406.71 ms. Allocated memory was 92.3 MB in the beginning and 111.1 MB in the end (delta: 18.9 MB). Free memory was 58.7 MB in the beginning and 45.1 MB in the end (delta: 13.6 MB). Peak memory consumption was 33.7 MB. Max. memory is 16.1 GB. * Witness Printer took 48.78 ms. Allocated memory is still 111.1 MB. Free memory was 45.1 MB in the beginning and 89.3 MB in the end (delta: -44.2 MB). Peak memory consumption was 3.6 MB. Max. memory is 16.1 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: 25]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 25]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 23]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 24]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 23]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - AllSpecificationsHoldResult: All specifications hold 6 specifications checked. All of them hold - InvariantResult [Line: 22]: Loop Invariant Derived loop invariant: 0 <= x + 2147483648 && ((((x + y <= z + 2147483647 && z + 1 == 0) && y == z + 100) && z <= x + y) || ((x <= 2147483647 && y == 100) && z == 1)) - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 15 locations, 6 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 2.2s, OverallIterations: 7, TraceHistogramMax: 2, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 57 SDtfs, 15 SDslu, 25 SDs, 0 SdLazy, 114 SolverSat, 13 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 39 GetRequests, 14 SyntacticMatches, 4 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 74 ImplicationChecksByTransitivity, 0.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=21occurred in iteration=6, 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, 7 MinimizatonAttempts, 7 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 1 LocationsWithAnnotation, 1 PreInvPairs, 2 NumberOfFragments, 40 HoareAnnotationTreeSize, 1 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 1 FomulaSimplificationsInter, 65 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 53 NumberOfCodeBlocks, 53 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 54 ConstructedInterpolants, 0 QuantifiedInterpolants, 2355 SizeOfPredicates, 1 NumberOfNonLiveVariables, 25 ConjunctsInSsa, 7 ConjunctsInUnsatCore, 9 InterpolantComputations, 6 PerfectInterpolantSequences, 0/6 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: OVERALL_TIME[ms]: 226, ICFG_INTERPRETER_ENTERED_PROCEDURES: 1, DAG_INTERPRETER_EARLY_EXIT_QUERIES_NONTRIVIAL: 7, DAG_INTERPRETER_EARLY_EXITS: 0, TOOLS_POST_APPLICATIONS: 22, TOOLS_POST_TIME[ms]: 40, TOOLS_POST_CALL_APPLICATIONS: 0, TOOLS_POST_CALL_TIME[ms]: 0, TOOLS_POST_RETURN_APPLICATIONS: 0, TOOLS_POST_RETURN_TIME[ms]: 0, TOOLS_QUANTIFIERELIM_APPLICATIONS: 22, TOOLS_QUANTIFIERELIM_TIME[ms]: 23, TOOLS_QUANTIFIERELIM_MAX_TIME[ms]: 5, FLUID_QUERY_TIME[ms]: 4, FLUID_QUERIES: 37, FLUID_YES_ANSWERS: 0, DOMAIN_JOIN_APPLICATIONS: 0, DOMAIN_JOIN_TIME[ms]: 0, DOMAIN_ALPHA_APPLICATIONS: 0, DOMAIN_ALPHA_TIME[ms]: 0, DOMAIN_WIDEN_APPLICATIONS: 1, DOMAIN_WIDEN_TIME[ms]: 92, DOMAIN_ISSUBSETEQ_APPLICATIONS: 2, DOMAIN_ISSUBSETEQ_TIME[ms]: 13, DOMAIN_ISBOTTOM_APPLICATIONS: 7, DOMAIN_ISBOTTOM_TIME[ms]: 20, LOOP_SUMMARIZER_APPLICATIONS: 1, LOOP_SUMMARIZER_CACHE_MISSES: 1, LOOP_SUMMARIZER_OVERALL_TIME[ms]: 144, LOOP_SUMMARIZER_NEW_COMPUTATION_TIME[ms]: 143, LOOP_SUMMARIZER_FIXPOINT_ITERATIONS: 2, CALL_SUMMARIZER_APPLICATIONS: 0, CALL_SUMMARIZER_CACHE_MISSES: 0, CALL_SUMMARIZER_OVERALL_TIME[ms]: 0, CALL_SUMMARIZER_NEW_COMPUTATION_TIME[ms]: 0, PROCEDURE_GRAPH_BUILDER_TIME[ms]: 2, PATH_EXPR_TIME[ms]: 3, REGEX_TO_DAG_TIME[ms]: 3, DAG_COMPRESSION_TIME[ms]: 8, DAG_COMPRESSION_PROCESSED_NODES: 62, DAG_COMPRESSION_RETAINED_NODES: 30, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...