./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 7b2dab56 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_cb768b4f-d404-45a6-ae44-aa928b4418b8/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_cb768b4f-d404-45a6-ae44-aa928b4418b8/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_cb768b4f-d404-45a6-ae44-aa928b4418b8/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_cb768b4f-d404-45a6-ae44-aa928b4418b8/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/termination-crafted/MenloPark.c -s /tmp/vcloud-vcloud-master/worker/run_dir_cb768b4f-d404-45a6-ae44-aa928b4418b8/bin/utaipan/config/svcomp-Overflow-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_cb768b4f-d404-45a6-ae44-aa928b4418b8/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 0.2.0-7b2dab5 [2020-12-03 12:36:31,449 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-03 12:36:31,452 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-03 12:36:31,532 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-03 12:36:31,533 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-03 12:36:31,534 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-03 12:36:31,537 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-03 12:36:31,539 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-03 12:36:31,542 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-03 12:36:31,543 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-03 12:36:31,545 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-03 12:36:31,546 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-03 12:36:31,547 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-03 12:36:31,549 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-03 12:36:31,550 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-03 12:36:31,552 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-03 12:36:31,553 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-03 12:36:31,555 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-03 12:36:31,557 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-03 12:36:31,560 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-03 12:36:31,562 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-03 12:36:31,564 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-03 12:36:31,566 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-03 12:36:31,567 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-03 12:36:31,571 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-03 12:36:31,571 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-03 12:36:31,572 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-03 12:36:31,573 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-03 12:36:31,574 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-03 12:36:31,575 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-03 12:36:31,576 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-03 12:36:31,577 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-03 12:36:31,578 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-03 12:36:31,579 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-03 12:36:31,581 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-03 12:36:31,581 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-03 12:36:31,582 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-03 12:36:31,583 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-03 12:36:31,583 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-03 12:36:31,584 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-03 12:36:31,585 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-03 12:36:31,587 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_cb768b4f-d404-45a6-ae44-aa928b4418b8/bin/utaipan/config/svcomp-Overflow-64bit-Taipan_Default.epf [2020-12-03 12:36:31,626 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-03 12:36:31,627 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-03 12:36:31,628 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-12-03 12:36:31,628 INFO L138 SettingsManager]: * User list type=DISABLED [2020-12-03 12:36:31,629 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-12-03 12:36:31,629 INFO L138 SettingsManager]: * Explicit value domain=true [2020-12-03 12:36:31,629 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2020-12-03 12:36:31,629 INFO L138 SettingsManager]: * Octagon Domain=false [2020-12-03 12:36:31,630 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-12-03 12:36:31,630 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2020-12-03 12:36:31,631 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2020-12-03 12:36:31,631 INFO L138 SettingsManager]: * Interval Domain=false [2020-12-03 12:36:31,632 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2020-12-03 12:36:31,632 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2020-12-03 12:36:31,632 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2020-12-03 12:36:31,633 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-03 12:36:31,633 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-12-03 12:36:31,633 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-03 12:36:31,634 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-03 12:36:31,634 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-03 12:36:31,634 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-03 12:36:31,635 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-03 12:36:31,635 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2020-12-03 12:36:31,635 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-03 12:36:31,635 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-03 12:36:31,636 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-03 12:36:31,636 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-03 12:36:31,636 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-03 12:36:31,636 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-03 12:36:31,638 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-03 12:36:31,638 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-03 12:36:31,639 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-03 12:36:31,639 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2020-12-03 12:36:31,639 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-03 12:36:31,640 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-03 12:36:31,640 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-03 12:36:31,640 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-12-03 12:36:31,640 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_cb768b4f-d404-45a6-ae44-aa928b4418b8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_cb768b4f-d404-45a6-ae44-aa928b4418b8/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7c87c9e4b733dad657e6ff9e27a5e9b26a2c3764 [2020-12-03 12:36:31,890 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-03 12:36:31,926 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-03 12:36:31,929 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-03 12:36:31,930 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-03 12:36:31,934 INFO L275 PluginConnector]: CDTParser initialized [2020-12-03 12:36:31,935 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_cb768b4f-d404-45a6-ae44-aa928b4418b8/bin/utaipan/../../sv-benchmarks/c/termination-crafted/MenloPark.c [2020-12-03 12:36:31,992 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_cb768b4f-d404-45a6-ae44-aa928b4418b8/bin/utaipan/data/532b03c22/edeed1e2dbc54615a9ac76fef3bd013e/FLAGcd4520e30 [2020-12-03 12:36:32,435 INFO L306 CDTParser]: Found 1 translation units. [2020-12-03 12:36:32,436 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_cb768b4f-d404-45a6-ae44-aa928b4418b8/sv-benchmarks/c/termination-crafted/MenloPark.c [2020-12-03 12:36:32,449 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_cb768b4f-d404-45a6-ae44-aa928b4418b8/bin/utaipan/data/532b03c22/edeed1e2dbc54615a9ac76fef3bd013e/FLAGcd4520e30 [2020-12-03 12:36:32,821 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_cb768b4f-d404-45a6-ae44-aa928b4418b8/bin/utaipan/data/532b03c22/edeed1e2dbc54615a9ac76fef3bd013e [2020-12-03 12:36:32,823 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-03 12:36:32,825 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-03 12:36:32,826 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-03 12:36:32,827 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-03 12:36:32,830 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-03 12:36:32,831 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 12:36:32" (1/1) ... [2020-12-03 12:36:32,833 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@55c7419b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:36:32, skipping insertion in model container [2020-12-03 12:36:32,833 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 12:36:32" (1/1) ... [2020-12-03 12:36:32,840 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-03 12:36:32,852 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-03 12:36:32,998 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-03 12:36:33,028 INFO L203 MainTranslator]: Completed pre-run [2020-12-03 12:36:33,043 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-03 12:36:33,053 INFO L208 MainTranslator]: Completed translation [2020-12-03 12:36:33,053 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:36:33 WrapperNode [2020-12-03 12:36:33,053 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-03 12:36:33,054 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-03 12:36:33,054 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-03 12:36:33,054 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-03 12:36:33,063 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:36:33" (1/1) ... [2020-12-03 12:36:33,069 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:36:33" (1/1) ... [2020-12-03 12:36:33,092 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-03 12:36:33,094 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-03 12:36:33,094 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-03 12:36:33,094 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-03 12:36:33,102 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:36:33" (1/1) ... [2020-12-03 12:36:33,102 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:36:33" (1/1) ... [2020-12-03 12:36:33,104 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:36:33" (1/1) ... [2020-12-03 12:36:33,105 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:36:33" (1/1) ... [2020-12-03 12:36:33,108 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:36:33" (1/1) ... [2020-12-03 12:36:33,115 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:36:33" (1/1) ... [2020-12-03 12:36:33,119 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:36:33" (1/1) ... [2020-12-03 12:36:33,124 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-03 12:36:33,126 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-03 12:36:33,127 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-03 12:36:33,127 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-03 12:36:33,128 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:36:33" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_cb768b4f-d404-45a6-ae44-aa928b4418b8/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 [2020-12-03 12:36:33,210 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-03 12:36:33,211 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-03 12:36:33,464 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-03 12:36:33,464 INFO L299 CfgBuilder]: Removed 5 assume(true) statements. [2020-12-03 12:36:33,466 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 12:36:33 BoogieIcfgContainer [2020-12-03 12:36:33,466 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-03 12:36:33,468 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-03 12:36:33,468 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-03 12:36:33,471 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-03 12:36:33,471 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.12 12:36:32" (1/3) ... [2020-12-03 12:36:33,472 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e00be4b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.12 12:36:33, skipping insertion in model container [2020-12-03 12:36:33,472 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:36:33" (2/3) ... [2020-12-03 12:36:33,473 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e00be4b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.12 12:36:33, skipping insertion in model container [2020-12-03 12:36:33,473 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 12:36:33" (3/3) ... [2020-12-03 12:36:33,474 INFO L111 eAbstractionObserver]: Analyzing ICFG MenloPark.c [2020-12-03 12:36:33,487 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-03 12:36:33,490 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 6 error locations. [2020-12-03 12:36:33,500 INFO L253 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2020-12-03 12:36:33,523 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-03 12:36:33,523 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-03 12:36:33,524 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-03 12:36:33,524 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-03 12:36:33,524 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-03 12:36:33,524 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-03 12:36:33,524 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-03 12:36:33,524 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-03 12:36:33,538 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states. [2020-12-03 12:36:33,543 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2020-12-03 12:36:33,543 INFO L414 BasicCegarLoop]: Found error trace [2020-12-03 12:36:33,543 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1] [2020-12-03 12:36:33,544 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]=== [2020-12-03 12:36:33,550 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-03 12:36:33,550 INFO L82 PathProgramCache]: Analyzing trace with hash 31073, now seen corresponding path program 1 times [2020-12-03 12:36:33,559 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-03 12:36:33,560 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [127545314] [2020-12-03 12:36:33,560 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-03 12:36:33,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-03 12:36:33,756 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-03 12:36:33,757 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [127545314] [2020-12-03 12:36:33,758 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-03 12:36:33,758 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-12-03 12:36:33,758 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [656755679] [2020-12-03 12:36:33,762 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-03 12:36:33,763 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-03 12:36:33,776 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-03 12:36:33,777 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-03 12:36:33,779 INFO L87 Difference]: Start difference. First operand 15 states. Second operand 3 states. [2020-12-03 12:36:33,853 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-03 12:36:33,853 INFO L93 Difference]: Finished difference Result 20 states and 21 transitions. [2020-12-03 12:36:33,854 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-03 12:36:33,855 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 3 [2020-12-03 12:36:33,855 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-03 12:36:33,868 INFO L225 Difference]: With dead ends: 20 [2020-12-03 12:36:33,869 INFO L226 Difference]: Without dead ends: 17 [2020-12-03 12:36:33,871 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 [2020-12-03 12:36:33,900 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2020-12-03 12:36:33,920 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 16. [2020-12-03 12:36:33,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2020-12-03 12:36:33,922 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 16 transitions. [2020-12-03 12:36:33,924 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 16 transitions. Word has length 3 [2020-12-03 12:36:33,924 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-03 12:36:33,924 INFO L481 AbstractCegarLoop]: Abstraction has 16 states and 16 transitions. [2020-12-03 12:36:33,924 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-03 12:36:33,924 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 16 transitions. [2020-12-03 12:36:33,925 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-12-03 12:36:33,925 INFO L414 BasicCegarLoop]: Found error trace [2020-12-03 12:36:33,925 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2020-12-03 12:36:33,925 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-03 12:36:33,926 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]=== [2020-12-03 12:36:33,927 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-03 12:36:33,927 INFO L82 PathProgramCache]: Analyzing trace with hash 963307, now seen corresponding path program 1 times [2020-12-03 12:36:33,928 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-03 12:36:33,928 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [651674736] [2020-12-03 12:36:33,928 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-03 12:36:33,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-03 12:36:33,981 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-03 12:36:33,982 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [651674736] [2020-12-03 12:36:33,982 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-03 12:36:33,982 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-03 12:36:33,982 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1364634654] [2020-12-03 12:36:33,984 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-03 12:36:33,984 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-03 12:36:33,985 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-03 12:36:33,985 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-03 12:36:33,985 INFO L87 Difference]: Start difference. First operand 16 states and 16 transitions. Second operand 4 states. [2020-12-03 12:36:34,060 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-03 12:36:34,060 INFO L93 Difference]: Finished difference Result 22 states and 22 transitions. [2020-12-03 12:36:34,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-03 12:36:34,061 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 4 [2020-12-03 12:36:34,061 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-03 12:36:34,062 INFO L225 Difference]: With dead ends: 22 [2020-12-03 12:36:34,062 INFO L226 Difference]: Without dead ends: 21 [2020-12-03 12:36:34,065 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 [2020-12-03 12:36:34,066 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2020-12-03 12:36:34,068 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 17. [2020-12-03 12:36:34,069 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2020-12-03 12:36:34,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 17 transitions. [2020-12-03 12:36:34,070 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 17 transitions. Word has length 4 [2020-12-03 12:36:34,070 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-03 12:36:34,070 INFO L481 AbstractCegarLoop]: Abstraction has 17 states and 17 transitions. [2020-12-03 12:36:34,070 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-03 12:36:34,071 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 17 transitions. [2020-12-03 12:36:34,071 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-12-03 12:36:34,071 INFO L414 BasicCegarLoop]: Found error trace [2020-12-03 12:36:34,071 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2020-12-03 12:36:34,071 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-03 12:36:34,072 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]=== [2020-12-03 12:36:34,073 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-03 12:36:34,073 INFO L82 PathProgramCache]: Analyzing trace with hash 29862563, now seen corresponding path program 1 times [2020-12-03 12:36:34,073 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-03 12:36:34,074 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [718154625] [2020-12-03 12:36:34,074 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-03 12:36:34,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-03 12:36:34,099 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-03 12:36:34,100 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [718154625] [2020-12-03 12:36:34,100 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-03 12:36:34,100 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-12-03 12:36:34,100 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [637066892] [2020-12-03 12:36:34,101 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-03 12:36:34,101 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-03 12:36:34,102 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-03 12:36:34,102 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-03 12:36:34,103 INFO L87 Difference]: Start difference. First operand 17 states and 17 transitions. Second operand 3 states. [2020-12-03 12:36:34,138 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-03 12:36:34,139 INFO L93 Difference]: Finished difference Result 20 states and 21 transitions. [2020-12-03 12:36:34,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-03 12:36:34,139 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 5 [2020-12-03 12:36:34,140 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-03 12:36:34,140 INFO L225 Difference]: With dead ends: 20 [2020-12-03 12:36:34,140 INFO L226 Difference]: Without dead ends: 19 [2020-12-03 12:36:34,141 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 [2020-12-03 12:36:34,142 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2020-12-03 12:36:34,144 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 18. [2020-12-03 12:36:34,145 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2020-12-03 12:36:34,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 18 transitions. [2020-12-03 12:36:34,146 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 18 transitions. Word has length 5 [2020-12-03 12:36:34,146 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-03 12:36:34,146 INFO L481 AbstractCegarLoop]: Abstraction has 18 states and 18 transitions. [2020-12-03 12:36:34,146 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-03 12:36:34,146 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 18 transitions. [2020-12-03 12:36:34,147 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-12-03 12:36:34,147 INFO L414 BasicCegarLoop]: Found error trace [2020-12-03 12:36:34,147 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2020-12-03 12:36:34,147 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-12-03 12:36:34,148 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]=== [2020-12-03 12:36:34,148 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-03 12:36:34,149 INFO L82 PathProgramCache]: Analyzing trace with hash 925739501, now seen corresponding path program 1 times [2020-12-03 12:36:34,149 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-03 12:36:34,149 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1810846295] [2020-12-03 12:36:34,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-03 12:36:34,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-03 12:36:34,174 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-03 12:36:34,175 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1810846295] [2020-12-03 12:36:34,175 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-03 12:36:34,175 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-12-03 12:36:34,176 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [361575690] [2020-12-03 12:36:34,176 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-03 12:36:34,176 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-03 12:36:34,177 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-03 12:36:34,178 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-03 12:36:34,178 INFO L87 Difference]: Start difference. First operand 18 states and 18 transitions. Second operand 3 states. [2020-12-03 12:36:34,210 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-03 12:36:34,211 INFO L93 Difference]: Finished difference Result 20 states and 20 transitions. [2020-12-03 12:36:34,211 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-03 12:36:34,211 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 6 [2020-12-03 12:36:34,212 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-03 12:36:34,212 INFO L225 Difference]: With dead ends: 20 [2020-12-03 12:36:34,212 INFO L226 Difference]: Without dead ends: 19 [2020-12-03 12:36:34,213 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 [2020-12-03 12:36:34,214 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2020-12-03 12:36:34,216 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2020-12-03 12:36:34,216 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2020-12-03 12:36:34,217 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 19 transitions. [2020-12-03 12:36:34,217 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 19 transitions. Word has length 6 [2020-12-03 12:36:34,218 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-03 12:36:34,218 INFO L481 AbstractCegarLoop]: Abstraction has 19 states and 19 transitions. [2020-12-03 12:36:34,218 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-03 12:36:34,218 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 19 transitions. [2020-12-03 12:36:34,218 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-12-03 12:36:34,219 INFO L414 BasicCegarLoop]: Found error trace [2020-12-03 12:36:34,219 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-12-03 12:36:34,219 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-12-03 12:36:34,219 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]=== [2020-12-03 12:36:34,220 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-03 12:36:34,220 INFO L82 PathProgramCache]: Analyzing trace with hash -1366846491, now seen corresponding path program 1 times [2020-12-03 12:36:34,220 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-03 12:36:34,221 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [841225518] [2020-12-03 12:36:34,221 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-03 12:36:34,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-03 12:36:34,247 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-03 12:36:34,247 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [841225518] [2020-12-03 12:36:34,248 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-03 12:36:34,248 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-12-03 12:36:34,248 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [533752170] [2020-12-03 12:36:34,249 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-03 12:36:34,249 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-03 12:36:34,250 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-03 12:36:34,250 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-03 12:36:34,250 INFO L87 Difference]: Start difference. First operand 19 states and 19 transitions. Second operand 3 states. [2020-12-03 12:36:34,276 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-03 12:36:34,276 INFO L93 Difference]: Finished difference Result 22 states and 23 transitions. [2020-12-03 12:36:34,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-03 12:36:34,277 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 7 [2020-12-03 12:36:34,277 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-03 12:36:34,278 INFO L225 Difference]: With dead ends: 22 [2020-12-03 12:36:34,278 INFO L226 Difference]: Without dead ends: 21 [2020-12-03 12:36:34,278 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 [2020-12-03 12:36:34,279 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2020-12-03 12:36:34,282 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 20. [2020-12-03 12:36:34,282 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2020-12-03 12:36:34,283 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 20 transitions. [2020-12-03 12:36:34,283 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 20 transitions. Word has length 7 [2020-12-03 12:36:34,283 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-03 12:36:34,283 INFO L481 AbstractCegarLoop]: Abstraction has 20 states and 20 transitions. [2020-12-03 12:36:34,284 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-03 12:36:34,284 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 20 transitions. [2020-12-03 12:36:34,284 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-12-03 12:36:34,284 INFO L414 BasicCegarLoop]: Found error trace [2020-12-03 12:36:34,284 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-12-03 12:36:34,285 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-12-03 12:36:34,285 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]=== [2020-12-03 12:36:34,286 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-03 12:36:34,286 INFO L82 PathProgramCache]: Analyzing trace with hash 577431791, now seen corresponding path program 1 times [2020-12-03 12:36:34,286 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-03 12:36:34,287 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1500816015] [2020-12-03 12:36:34,287 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-03 12:36:34,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-03 12:36:34,312 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-03 12:36:34,312 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1500816015] [2020-12-03 12:36:34,312 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-03 12:36:34,313 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-12-03 12:36:34,313 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1440714508] [2020-12-03 12:36:34,313 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-03 12:36:34,314 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-03 12:36:34,314 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-03 12:36:34,315 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-03 12:36:34,315 INFO L87 Difference]: Start difference. First operand 20 states and 20 transitions. Second operand 3 states. [2020-12-03 12:36:34,347 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-03 12:36:34,347 INFO L93 Difference]: Finished difference Result 22 states and 22 transitions. [2020-12-03 12:36:34,348 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-03 12:36:34,348 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2020-12-03 12:36:34,348 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-03 12:36:34,349 INFO L225 Difference]: With dead ends: 22 [2020-12-03 12:36:34,350 INFO L226 Difference]: Without dead ends: 21 [2020-12-03 12:36:34,352 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 [2020-12-03 12:36:34,355 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2020-12-03 12:36:34,361 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2020-12-03 12:36:34,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2020-12-03 12:36:34,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 21 transitions. [2020-12-03 12:36:34,364 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 21 transitions. Word has length 8 [2020-12-03 12:36:34,364 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-03 12:36:34,364 INFO L481 AbstractCegarLoop]: Abstraction has 21 states and 21 transitions. [2020-12-03 12:36:34,364 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-03 12:36:34,365 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 21 transitions. [2020-12-03 12:36:34,365 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-12-03 12:36:34,365 INFO L414 BasicCegarLoop]: Found error trace [2020-12-03 12:36:34,365 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-03 12:36:34,365 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-12-03 12:36:34,366 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]=== [2020-12-03 12:36:34,366 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-03 12:36:34,366 INFO L82 PathProgramCache]: Analyzing trace with hash 861171249, now seen corresponding path program 1 times [2020-12-03 12:36:34,366 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-03 12:36:34,367 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1227520001] [2020-12-03 12:36:34,367 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-03 12:36:34,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-03 12:36:34,471 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-03 12:36:34,471 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1227520001] [2020-12-03 12:36:34,472 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [52455273] [2020-12-03 12:36:34,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_cb768b4f-d404-45a6-ae44-aa928b4418b8/bin/utaipan/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-03 12:36:34,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-03 12:36:34,520 INFO L263 TraceCheckSpWp]: Trace formula consists of 25 conjuncts, 7 conjunts are in the unsatisfiable core [2020-12-03 12:36:34,527 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-03 12:36:34,766 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-03 12:36:34,766 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-03 12:36:34,842 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-03 12:36:34,843 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [509425134] [2020-12-03 12:36:34,869 INFO L159 IcfgInterpreter]: Started Sifa with 9 locations of interest [2020-12-03 12:36:34,869 INFO L166 IcfgInterpreter]: Building call graph [2020-12-03 12:36:34,873 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2020-12-03 12:36:34,878 INFO L176 IcfgInterpreter]: Starting interpretation [2020-12-03 12:36:34,879 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2020-12-03 12:36:35,024 INFO L180 IcfgInterpreter]: Interpretation finished [2020-12-03 12:36:35,401 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 3 imperfect interpolant sequences. [2020-12-03 12:36:35,402 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [3, 3, 3] total 13 [2020-12-03 12:36:35,403 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [18455334] [2020-12-03 12:36:35,403 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-03 12:36:35,404 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-03 12:36:35,404 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-03 12:36:35,406 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=143, Unknown=0, NotChecked=0, Total=210 [2020-12-03 12:36:35,406 INFO L87 Difference]: Start difference. First operand 21 states and 21 transitions. Second operand 6 states. [2020-12-03 12:36:35,462 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-03 12:36:35,462 INFO L93 Difference]: Finished difference Result 21 states and 21 transitions. [2020-12-03 12:36:35,463 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-03 12:36:35,463 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 10 [2020-12-03 12:36:35,463 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-03 12:36:35,463 INFO L225 Difference]: With dead ends: 21 [2020-12-03 12:36:35,463 INFO L226 Difference]: Without dead ends: 0 [2020-12-03 12:36:35,464 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 [2020-12-03 12:36:35,464 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-12-03 12:36:35,464 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-12-03 12:36:35,465 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-12-03 12:36:35,465 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-12-03 12:36:35,465 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 10 [2020-12-03 12:36:35,465 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-03 12:36:35,465 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-12-03 12:36:35,465 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-03 12:36:35,466 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-12-03 12:36:35,466 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-12-03 12:36:35,681 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2020-12-03 12:36:35,682 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-12-03 12:36:35,719 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 23) no Hoare annotation was computed. [2020-12-03 12:36:35,719 INFO L262 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-12-03 12:36:35,720 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 24) no Hoare annotation was computed. [2020-12-03 12:36:35,720 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW(line 25) no Hoare annotation was computed. [2020-12-03 12:36:35,720 INFO L262 CegarLoopResult]: For program point L25(line 25) no Hoare annotation was computed. [2020-12-03 12:36:35,720 INFO L262 CegarLoopResult]: For program point L25-1(line 25) no Hoare annotation was computed. [2020-12-03 12:36:35,720 INFO L262 CegarLoopResult]: For program point L23(line 23) no Hoare annotation was computed. [2020-12-03 12:36:35,720 INFO L262 CegarLoopResult]: For program point L23-1(line 23) no Hoare annotation was computed. [2020-12-03 12:36:35,720 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 23) no Hoare annotation was computed. [2020-12-03 12:36:35,720 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 24) no Hoare annotation was computed. [2020-12-03 12:36:35,720 INFO L262 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-12-03 12:36:35,721 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW(line 25) no Hoare annotation was computed. [2020-12-03 12:36:35,721 INFO L262 CegarLoopResult]: For program point L24(line 24) no Hoare annotation was computed. [2020-12-03 12:36:35,721 INFO L262 CegarLoopResult]: For program point L24-1(line 24) no Hoare annotation was computed. [2020-12-03 12:36:35,721 INFO L258 CegarLoopResult]: At program point L22-2(lines 22 26) the Hoare annotation is: (or (and (= ULTIMATE.start_main_~y~0 (+ ULTIMATE.start_main_~z~0 100)) (<= 0 (+ ULTIMATE.start_main_~x~0 100)) (<= ULTIMATE.start_main_~x~0 2147483547) (= ULTIMATE.start_main_~y~0 99)) (and (<= ULTIMATE.start_main_~x~0 2147483647) (<= 0 (+ ULTIMATE.start_main_~x~0 2147483648)) (= ULTIMATE.start_main_~y~0 100) (= ULTIMATE.start_main_~z~0 1))) [2020-12-03 12:36:35,751 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 03.12 12:36:35 BoogieIcfgContainer [2020-12-03 12:36:35,752 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-03 12:36:35,752 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-03 12:36:35,752 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-03 12:36:35,753 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-03 12:36:35,753 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 12:36:33" (3/4) ... [2020-12-03 12:36:35,758 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-12-03 12:36:35,767 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2020-12-03 12:36:35,768 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2020-12-03 12:36:35,768 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-03 12:36:35,815 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_cb768b4f-d404-45a6-ae44-aa928b4418b8/bin/utaipan/witness.graphml [2020-12-03 12:36:35,815 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-03 12:36:35,821 INFO L168 Benchmark]: Toolchain (without parser) took 2990.77 ms. Allocated memory was 98.6 MB in the beginning and 136.3 MB in the end (delta: 37.7 MB). Free memory was 71.2 MB in the beginning and 106.9 MB in the end (delta: -35.7 MB). Peak memory consumption was 2.9 MB. Max. memory is 16.1 GB. [2020-12-03 12:36:35,822 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 98.6 MB. Free memory is still 57.1 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-12-03 12:36:35,823 INFO L168 Benchmark]: CACSL2BoogieTranslator took 227.05 ms. Allocated memory is still 98.6 MB. Free memory was 71.2 MB in the beginning and 76.8 MB in the end (delta: -5.6 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-12-03 12:36:35,823 INFO L168 Benchmark]: Boogie Procedure Inliner took 38.43 ms. Allocated memory is still 98.6 MB. Free memory was 76.8 MB in the beginning and 75.5 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-03 12:36:35,823 INFO L168 Benchmark]: Boogie Preprocessor took 31.39 ms. Allocated memory is still 98.6 MB. Free memory was 75.5 MB in the beginning and 74.5 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-03 12:36:35,824 INFO L168 Benchmark]: RCFGBuilder took 340.05 ms. Allocated memory is still 98.6 MB. Free memory was 74.5 MB in the beginning and 63.6 MB in the end (delta: 10.9 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-12-03 12:36:35,824 INFO L168 Benchmark]: TraceAbstraction took 2284.22 ms. Allocated memory was 98.6 MB in the beginning and 136.3 MB in the end (delta: 37.7 MB). Free memory was 63.3 MB in the beginning and 110.1 MB in the end (delta: -46.8 MB). Peak memory consumption was 67.2 MB. Max. memory is 16.1 GB. [2020-12-03 12:36:35,825 INFO L168 Benchmark]: Witness Printer took 62.59 ms. Allocated memory is still 136.3 MB. Free memory was 110.1 MB in the beginning and 106.9 MB in the end (delta: 3.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-12-03 12:36:35,827 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 98.6 MB. Free memory is still 57.1 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 227.05 ms. Allocated memory is still 98.6 MB. Free memory was 71.2 MB in the beginning and 76.8 MB in the end (delta: -5.6 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 38.43 ms. Allocated memory is still 98.6 MB. Free memory was 76.8 MB in the beginning and 75.5 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 31.39 ms. Allocated memory is still 98.6 MB. Free memory was 75.5 MB in the beginning and 74.5 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 340.05 ms. Allocated memory is still 98.6 MB. Free memory was 74.5 MB in the beginning and 63.6 MB in the end (delta: 10.9 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * TraceAbstraction took 2284.22 ms. Allocated memory was 98.6 MB in the beginning and 136.3 MB in the end (delta: 37.7 MB). Free memory was 63.3 MB in the beginning and 110.1 MB in the end (delta: -46.8 MB). Peak memory consumption was 67.2 MB. Max. memory is 16.1 GB. * Witness Printer took 62.59 ms. Allocated memory is still 136.3 MB. Free memory was 110.1 MB in the beginning and 106.9 MB in the end (delta: 3.2 MB). Peak memory consumption was 4.2 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: (((y == z + 100 && 0 <= x + 100) && x <= 2147483547) && y == 99) || (((x <= 2147483647 && 0 <= x + 2147483648) && 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: 2.1s, OverallIterations: 7, TraceHistogramMax: 2, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 57 SDtfs, 15 SDslu, 25 SDs, 0 SdLazy, 114 SolverSat, 13 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 39 GetRequests, 14 SyntacticMatches, 4 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 74 ImplicationChecksByTransitivity, 0.5s 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, 33 HoareAnnotationTreeSize, 1 FomulaSimplifications, 58 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 1 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.5s 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]: 156, 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]: 56, 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]: 39, TOOLS_QUANTIFIERELIM_MAX_TIME[ms]: 8, FLUID_QUERY_TIME[ms]: 5, 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]: 37, DOMAIN_ISSUBSETEQ_APPLICATIONS: 2, DOMAIN_ISSUBSETEQ_TIME[ms]: 4, DOMAIN_ISBOTTOM_APPLICATIONS: 7, DOMAIN_ISBOTTOM_TIME[ms]: 9, LOOP_SUMMARIZER_APPLICATIONS: 1, LOOP_SUMMARIZER_CACHE_MISSES: 1, LOOP_SUMMARIZER_OVERALL_TIME[ms]: 86, LOOP_SUMMARIZER_NEW_COMPUTATION_TIME[ms]: 86, 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]: 4, REGEX_TO_DAG_TIME[ms]: 3, DAG_COMPRESSION_TIME[ms]: 10, 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...