./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/loop-industry-pattern/aiob_4_true-unreach-call.c.v+cfa-reducer.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 635dfa2a Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_b237499e-7b4f-4b46-bafd-2d2236d95bd1/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_b237499e-7b4f-4b46-bafd-2d2236d95bd1/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_b237499e-7b4f-4b46-bafd-2d2236d95bd1/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_b237499e-7b4f-4b46-bafd-2d2236d95bd1/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/loop-industry-pattern/aiob_4_true-unreach-call.c.v+cfa-reducer.c -s /tmp/vcloud-vcloud-master/worker/working_dir_b237499e-7b4f-4b46-bafd-2d2236d95bd1/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_b237499e-7b4f-4b46-bafd-2d2236d95bd1/bin-2019/utaipan --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash a9d9fdb967c829f2f7ee82db31bc122f536bc655 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-635dfa2 [2018-12-03 03:18:41,497 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-03 03:18:41,498 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-03 03:18:41,505 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-03 03:18:41,505 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-03 03:18:41,505 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-03 03:18:41,506 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-03 03:18:41,507 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-03 03:18:41,508 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-03 03:18:41,508 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-03 03:18:41,509 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-03 03:18:41,509 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-03 03:18:41,509 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-03 03:18:41,510 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-03 03:18:41,510 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-03 03:18:41,511 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-03 03:18:41,511 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-03 03:18:41,512 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-03 03:18:41,513 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-03 03:18:41,514 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-03 03:18:41,515 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-03 03:18:41,515 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-03 03:18:41,516 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-03 03:18:41,517 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-03 03:18:41,517 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-03 03:18:41,517 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-03 03:18:41,518 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-03 03:18:41,518 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-03 03:18:41,519 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-03 03:18:41,519 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-03 03:18:41,519 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-03 03:18:41,520 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-03 03:18:41,520 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-03 03:18:41,520 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-03 03:18:41,520 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-03 03:18:41,521 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-03 03:18:41,521 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_b237499e-7b4f-4b46-bafd-2d2236d95bd1/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-12-03 03:18:41,528 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-03 03:18:41,528 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-03 03:18:41,529 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-03 03:18:41,529 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-03 03:18:41,529 INFO L133 SettingsManager]: * User list type=DISABLED [2018-12-03 03:18:41,529 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-12-03 03:18:41,529 INFO L133 SettingsManager]: * Explicit value domain=true [2018-12-03 03:18:41,529 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-12-03 03:18:41,530 INFO L133 SettingsManager]: * Octagon Domain=false [2018-12-03 03:18:41,530 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-12-03 03:18:41,530 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-12-03 03:18:41,530 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-12-03 03:18:41,530 INFO L133 SettingsManager]: * Interval Domain=false [2018-12-03 03:18:41,531 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-03 03:18:41,531 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-03 03:18:41,531 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-03 03:18:41,531 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-03 03:18:41,531 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-03 03:18:41,531 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-03 03:18:41,531 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-03 03:18:41,531 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-03 03:18:41,532 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-03 03:18:41,532 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-03 03:18:41,532 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-03 03:18:41,532 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-03 03:18:41,532 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-03 03:18:41,532 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-03 03:18:41,532 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-03 03:18:41,532 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-03 03:18:41,533 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-03 03:18:41,533 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-03 03:18:41,533 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-03 03:18:41,533 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-12-03 03:18:41,533 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-03 03:18:41,533 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-12-03 03:18:41,533 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-12-03 03:18:41,533 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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/working_dir_b237499e-7b4f-4b46-bafd-2d2236d95bd1/bin-2019/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 ! call(__VERIFIER_error())) ) 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 -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a9d9fdb967c829f2f7ee82db31bc122f536bc655 [2018-12-03 03:18:41,550 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-03 03:18:41,557 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-03 03:18:41,559 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-03 03:18:41,560 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-03 03:18:41,560 INFO L276 PluginConnector]: CDTParser initialized [2018-12-03 03:18:41,560 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_b237499e-7b4f-4b46-bafd-2d2236d95bd1/bin-2019/utaipan/../../sv-benchmarks/c/loop-industry-pattern/aiob_4_true-unreach-call.c.v+cfa-reducer.c [2018-12-03 03:18:41,597 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_b237499e-7b4f-4b46-bafd-2d2236d95bd1/bin-2019/utaipan/data/cf9a8eeb7/210687751b954f428d171503abb26f60/FLAG00e155720 [2018-12-03 03:18:42,042 INFO L307 CDTParser]: Found 1 translation units. [2018-12-03 03:18:42,042 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_b237499e-7b4f-4b46-bafd-2d2236d95bd1/sv-benchmarks/c/loop-industry-pattern/aiob_4_true-unreach-call.c.v+cfa-reducer.c [2018-12-03 03:18:42,047 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_b237499e-7b4f-4b46-bafd-2d2236d95bd1/bin-2019/utaipan/data/cf9a8eeb7/210687751b954f428d171503abb26f60/FLAG00e155720 [2018-12-03 03:18:42,057 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_b237499e-7b4f-4b46-bafd-2d2236d95bd1/bin-2019/utaipan/data/cf9a8eeb7/210687751b954f428d171503abb26f60 [2018-12-03 03:18:42,059 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-03 03:18:42,060 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-03 03:18:42,061 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-03 03:18:42,061 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-03 03:18:42,063 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-03 03:18:42,064 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 03:18:42" (1/1) ... [2018-12-03 03:18:42,066 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3d58bc2f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:18:42, skipping insertion in model container [2018-12-03 03:18:42,066 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 03:18:42" (1/1) ... [2018-12-03 03:18:42,070 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-03 03:18:42,086 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-03 03:18:42,233 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-03 03:18:42,239 INFO L191 MainTranslator]: Completed pre-run [2018-12-03 03:18:42,318 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-03 03:18:42,327 INFO L195 MainTranslator]: Completed translation [2018-12-03 03:18:42,327 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:18:42 WrapperNode [2018-12-03 03:18:42,328 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-03 03:18:42,328 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-03 03:18:42,328 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-03 03:18:42,328 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-03 03:18:42,334 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:18:42" (1/1) ... [2018-12-03 03:18:42,342 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:18:42" (1/1) ... [2018-12-03 03:18:42,347 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-03 03:18:42,347 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-03 03:18:42,347 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-03 03:18:42,348 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-03 03:18:42,353 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:18:42" (1/1) ... [2018-12-03 03:18:42,354 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:18:42" (1/1) ... [2018-12-03 03:18:42,356 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:18:42" (1/1) ... [2018-12-03 03:18:42,357 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:18:42" (1/1) ... [2018-12-03 03:18:42,371 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:18:42" (1/1) ... [2018-12-03 03:18:42,374 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:18:42" (1/1) ... [2018-12-03 03:18:42,375 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:18:42" (1/1) ... [2018-12-03 03:18:42,377 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-03 03:18:42,377 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-03 03:18:42,378 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-03 03:18:42,378 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-03 03:18:42,378 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:18:42" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_b237499e-7b4f-4b46-bafd-2d2236d95bd1/bin-2019/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 [2018-12-03 03:18:42,413 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2018-12-03 03:18:42,413 INFO L130 BoogieDeclarations]: Found specification of procedure fopen [2018-12-03 03:18:42,413 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-12-03 03:18:42,413 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-12-03 03:18:42,413 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2018-12-03 03:18:42,413 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-12-03 03:18:42,414 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-12-03 03:18:42,414 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-12-03 03:18:42,414 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-03 03:18:42,414 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-03 03:18:42,414 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-12-03 03:18:42,414 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-12-03 03:18:42,674 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-03 03:18:42,674 INFO L280 CfgBuilder]: Removed 0 assue(true) statements. [2018-12-03 03:18:42,675 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 03:18:42 BoogieIcfgContainer [2018-12-03 03:18:42,675 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-03 03:18:42,675 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-03 03:18:42,675 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-03 03:18:42,677 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-03 03:18:42,678 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.12 03:18:42" (1/3) ... [2018-12-03 03:18:42,678 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@78a79e94 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.12 03:18:42, skipping insertion in model container [2018-12-03 03:18:42,678 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:18:42" (2/3) ... [2018-12-03 03:18:42,678 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@78a79e94 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.12 03:18:42, skipping insertion in model container [2018-12-03 03:18:42,679 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 03:18:42" (3/3) ... [2018-12-03 03:18:42,680 INFO L112 eAbstractionObserver]: Analyzing ICFG aiob_4_true-unreach-call.c.v+cfa-reducer.c [2018-12-03 03:18:42,686 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-03 03:18:42,691 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-12-03 03:18:42,700 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-12-03 03:18:42,718 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-03 03:18:42,718 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-03 03:18:42,718 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-03 03:18:42,719 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-03 03:18:42,719 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-03 03:18:42,719 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-03 03:18:42,719 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-03 03:18:42,719 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-03 03:18:42,729 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states. [2018-12-03 03:18:42,732 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-12-03 03:18:42,732 INFO L394 BasicCegarLoop]: Found error trace [2018-12-03 03:18:42,733 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-03 03:18:42,734 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-03 03:18:42,737 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-03 03:18:42,737 INFO L82 PathProgramCache]: Analyzing trace with hash -772479634, now seen corresponding path program 1 times [2018-12-03 03:18:42,739 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-03 03:18:42,767 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 03:18:42,767 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-03 03:18:42,767 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 03:18:42,767 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-03 03:18:42,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-03 03:18:42,898 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-03 03:18:42,899 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-03 03:18:42,899 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-12-03 03:18:42,899 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-03 03:18:42,902 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-12-03 03:18:42,909 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-12-03 03:18:42,910 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-12-03 03:18:42,911 INFO L87 Difference]: Start difference. First operand 19 states. Second operand 4 states. [2018-12-03 03:18:42,955 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-03 03:18:42,955 INFO L93 Difference]: Finished difference Result 35 states and 42 transitions. [2018-12-03 03:18:42,955 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-12-03 03:18:42,956 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 13 [2018-12-03 03:18:42,957 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-03 03:18:42,962 INFO L225 Difference]: With dead ends: 35 [2018-12-03 03:18:42,962 INFO L226 Difference]: Without dead ends: 23 [2018-12-03 03:18:42,964 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-12-03 03:18:42,974 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2018-12-03 03:18:42,983 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 17. [2018-12-03 03:18:42,983 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2018-12-03 03:18:42,984 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 18 transitions. [2018-12-03 03:18:42,985 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 18 transitions. Word has length 13 [2018-12-03 03:18:42,985 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-03 03:18:42,985 INFO L480 AbstractCegarLoop]: Abstraction has 17 states and 18 transitions. [2018-12-03 03:18:42,985 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-12-03 03:18:42,985 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 18 transitions. [2018-12-03 03:18:42,985 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-12-03 03:18:42,985 INFO L394 BasicCegarLoop]: Found error trace [2018-12-03 03:18:42,985 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-03 03:18:42,985 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-03 03:18:42,986 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-03 03:18:42,986 INFO L82 PathProgramCache]: Analyzing trace with hash -772062560, now seen corresponding path program 1 times [2018-12-03 03:18:42,986 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-03 03:18:42,986 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 03:18:42,986 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-03 03:18:42,986 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 03:18:42,987 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-03 03:18:43,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-03 03:18:43,054 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-03 03:18:43,055 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-03 03:18:43,055 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-12-03 03:18:43,055 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-03 03:18:43,056 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-12-03 03:18:43,056 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-12-03 03:18:43,057 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-12-03 03:18:43,057 INFO L87 Difference]: Start difference. First operand 17 states and 18 transitions. Second operand 4 states. [2018-12-03 03:18:43,080 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-03 03:18:43,081 INFO L93 Difference]: Finished difference Result 34 states and 37 transitions. [2018-12-03 03:18:43,081 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-12-03 03:18:43,081 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 13 [2018-12-03 03:18:43,081 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-03 03:18:43,081 INFO L225 Difference]: With dead ends: 34 [2018-12-03 03:18:43,082 INFO L226 Difference]: Without dead ends: 24 [2018-12-03 03:18:43,082 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-12-03 03:18:43,082 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2018-12-03 03:18:43,085 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 20. [2018-12-03 03:18:43,085 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2018-12-03 03:18:43,085 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 21 transitions. [2018-12-03 03:18:43,086 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 21 transitions. Word has length 13 [2018-12-03 03:18:43,086 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-03 03:18:43,086 INFO L480 AbstractCegarLoop]: Abstraction has 20 states and 21 transitions. [2018-12-03 03:18:43,086 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-12-03 03:18:43,086 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 21 transitions. [2018-12-03 03:18:43,086 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-12-03 03:18:43,087 INFO L394 BasicCegarLoop]: Found error trace [2018-12-03 03:18:43,087 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-03 03:18:43,087 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-03 03:18:43,087 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-03 03:18:43,087 INFO L82 PathProgramCache]: Analyzing trace with hash -1935785144, now seen corresponding path program 1 times [2018-12-03 03:18:43,087 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-03 03:18:43,088 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 03:18:43,088 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-03 03:18:43,088 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 03:18:43,088 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-03 03:18:43,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-03 03:18:43,193 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-03 03:18:43,193 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-03 03:18:43,193 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-03 03:18:43,194 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 20 with the following transitions: [2018-12-03 03:18:43,195 INFO L205 CegarAbsIntRunner]: [0], [1], [5], [9], [11], [14], [17], [19], [22], [23], [25], [28], [31], [35], [36], [37] [2018-12-03 03:18:43,227 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-03 03:18:43,227 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-03 03:18:43,477 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-12-03 03:18:43,478 INFO L272 AbstractInterpreter]: Visited 16 different actions 32 times. Merged at 9 different actions 15 times. Never widened. Performed 772 root evaluator evaluations with a maximum evaluation depth of 6. Performed 772 inverse root evaluator evaluations with a maximum inverse evaluation depth of 6. Found 2 fixpoints after 1 different actions. Largest state had 197 variables. [2018-12-03 03:18:43,482 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-03 03:18:43,483 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-12-03 03:18:43,483 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-03 03:18:43,484 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_b237499e-7b4f-4b46-bafd-2d2236d95bd1/bin-2019/utaipan/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-12-03 03:18:43,490 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-03 03:18:43,490 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-12-03 03:18:43,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-03 03:18:43,550 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-03 03:18:43,588 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-03 03:18:43,588 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-03 03:18:43,634 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-03 03:18:43,649 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-12-03 03:18:43,649 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 9 [2018-12-03 03:18:43,649 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-12-03 03:18:43,649 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-12-03 03:18:43,649 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-12-03 03:18:43,650 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2018-12-03 03:18:43,650 INFO L87 Difference]: Start difference. First operand 20 states and 21 transitions. Second operand 6 states. [2018-12-03 03:18:43,729 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-03 03:18:43,729 INFO L93 Difference]: Finished difference Result 40 states and 43 transitions. [2018-12-03 03:18:43,729 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-12-03 03:18:43,729 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 19 [2018-12-03 03:18:43,730 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-03 03:18:43,730 INFO L225 Difference]: With dead ends: 40 [2018-12-03 03:18:43,730 INFO L226 Difference]: Without dead ends: 30 [2018-12-03 03:18:43,731 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 33 SyntacticMatches, 3 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=87, Unknown=0, NotChecked=0, Total=132 [2018-12-03 03:18:43,731 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2018-12-03 03:18:43,735 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 26. [2018-12-03 03:18:43,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2018-12-03 03:18:43,735 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 27 transitions. [2018-12-03 03:18:43,736 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 27 transitions. Word has length 19 [2018-12-03 03:18:43,736 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-03 03:18:43,736 INFO L480 AbstractCegarLoop]: Abstraction has 26 states and 27 transitions. [2018-12-03 03:18:43,736 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-12-03 03:18:43,736 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 27 transitions. [2018-12-03 03:18:43,737 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2018-12-03 03:18:43,737 INFO L394 BasicCegarLoop]: Found error trace [2018-12-03 03:18:43,737 INFO L402 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-03 03:18:43,737 INFO L423 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-03 03:18:43,737 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-03 03:18:43,737 INFO L82 PathProgramCache]: Analyzing trace with hash 941106672, now seen corresponding path program 2 times [2018-12-03 03:18:43,738 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-03 03:18:43,738 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 03:18:43,738 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-03 03:18:43,739 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 03:18:43,739 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-03 03:18:43,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-03 03:18:43,813 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 4 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-03 03:18:43,814 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-03 03:18:43,814 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-03 03:18:43,814 INFO L187 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2018-12-03 03:18:43,814 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2018-12-03 03:18:43,814 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-03 03:18:43,814 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_b237499e-7b4f-4b46-bafd-2d2236d95bd1/bin-2019/utaipan/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-12-03 03:18:43,822 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2018-12-03 03:18:43,822 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder OUTSIDE_LOOP_FIRST2 (IT: FPandBP) [2018-12-03 03:18:43,875 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2018-12-03 03:18:43,875 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-12-03 03:18:43,878 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-03 03:18:43,907 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 4 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-03 03:18:43,908 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-03 03:18:43,945 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 4 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-03 03:18:43,960 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-12-03 03:18:43,960 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 11 [2018-12-03 03:18:43,960 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-12-03 03:18:43,961 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-12-03 03:18:43,961 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-12-03 03:18:43,961 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2018-12-03 03:18:43,961 INFO L87 Difference]: Start difference. First operand 26 states and 27 transitions. Second operand 7 states. [2018-12-03 03:18:44,056 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-03 03:18:44,056 INFO L93 Difference]: Finished difference Result 46 states and 49 transitions. [2018-12-03 03:18:44,056 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-12-03 03:18:44,057 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 25 [2018-12-03 03:18:44,057 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-03 03:18:44,057 INFO L225 Difference]: With dead ends: 46 [2018-12-03 03:18:44,057 INFO L226 Difference]: Without dead ends: 36 [2018-12-03 03:18:44,058 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 44 SyntacticMatches, 3 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=65, Invalid=145, Unknown=0, NotChecked=0, Total=210 [2018-12-03 03:18:44,058 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2018-12-03 03:18:44,060 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 32. [2018-12-03 03:18:44,060 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2018-12-03 03:18:44,061 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 33 transitions. [2018-12-03 03:18:44,061 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 33 transitions. Word has length 25 [2018-12-03 03:18:44,061 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-03 03:18:44,061 INFO L480 AbstractCegarLoop]: Abstraction has 32 states and 33 transitions. [2018-12-03 03:18:44,061 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-12-03 03:18:44,061 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 33 transitions. [2018-12-03 03:18:44,062 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2018-12-03 03:18:44,062 INFO L394 BasicCegarLoop]: Found error trace [2018-12-03 03:18:44,062 INFO L402 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-03 03:18:44,062 INFO L423 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-03 03:18:44,062 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-03 03:18:44,062 INFO L82 PathProgramCache]: Analyzing trace with hash -1674089832, now seen corresponding path program 3 times [2018-12-03 03:18:44,062 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-03 03:18:44,063 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 03:18:44,063 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-12-03 03:18:44,063 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 03:18:44,063 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-03 03:18:44,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-03 03:18:44,170 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 6 proven. 27 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-03 03:18:44,171 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-03 03:18:44,171 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-03 03:18:44,171 INFO L187 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2018-12-03 03:18:44,171 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2018-12-03 03:18:44,171 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-03 03:18:44,171 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_b237499e-7b4f-4b46-bafd-2d2236d95bd1/bin-2019/utaipan/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-12-03 03:18:44,177 INFO L103 rtionOrderModulation]: Keeping assertion order TERMS_WITH_SMALL_CONSTANTS_FIRST [2018-12-03 03:18:44,178 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder TERMS_WITH_SMALL_CONSTANTS_FIRST (IT: FPandBP) [2018-12-03 03:18:44,225 INFO L249 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2018-12-03 03:18:44,225 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-12-03 03:18:44,228 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-03 03:18:44,246 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 6 proven. 27 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-03 03:18:44,246 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-03 03:18:44,303 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 6 proven. 27 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-03 03:18:44,317 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-12-03 03:18:44,317 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 13 [2018-12-03 03:18:44,317 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-12-03 03:18:44,318 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-12-03 03:18:44,318 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-12-03 03:18:44,318 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=114, Unknown=0, NotChecked=0, Total=156 [2018-12-03 03:18:44,318 INFO L87 Difference]: Start difference. First operand 32 states and 33 transitions. Second operand 8 states. [2018-12-03 03:18:44,419 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-03 03:18:44,419 INFO L93 Difference]: Finished difference Result 52 states and 55 transitions. [2018-12-03 03:18:44,420 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-12-03 03:18:44,420 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 31 [2018-12-03 03:18:44,420 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-03 03:18:44,420 INFO L225 Difference]: With dead ends: 52 [2018-12-03 03:18:44,420 INFO L226 Difference]: Without dead ends: 42 [2018-12-03 03:18:44,421 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 55 SyntacticMatches, 3 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=89, Invalid=217, Unknown=0, NotChecked=0, Total=306 [2018-12-03 03:18:44,421 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2018-12-03 03:18:44,424 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 38. [2018-12-03 03:18:44,425 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2018-12-03 03:18:44,425 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 39 transitions. [2018-12-03 03:18:44,426 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 39 transitions. Word has length 31 [2018-12-03 03:18:44,426 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-03 03:18:44,426 INFO L480 AbstractCegarLoop]: Abstraction has 38 states and 39 transitions. [2018-12-03 03:18:44,426 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-12-03 03:18:44,426 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 39 transitions. [2018-12-03 03:18:44,427 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2018-12-03 03:18:44,427 INFO L394 BasicCegarLoop]: Found error trace [2018-12-03 03:18:44,427 INFO L402 BasicCegarLoop]: trace histogram [5, 5, 5, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-03 03:18:44,427 INFO L423 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-03 03:18:44,427 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-03 03:18:44,427 INFO L82 PathProgramCache]: Analyzing trace with hash 199921984, now seen corresponding path program 4 times [2018-12-03 03:18:44,427 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-03 03:18:44,428 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 03:18:44,428 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-12-03 03:18:44,428 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 03:18:44,428 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-03 03:18:44,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-03 03:18:44,544 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 8 proven. 48 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-03 03:18:44,545 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-03 03:18:44,545 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-03 03:18:44,545 INFO L187 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2018-12-03 03:18:44,545 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2018-12-03 03:18:44,545 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-03 03:18:44,545 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_b237499e-7b4f-4b46-bafd-2d2236d95bd1/bin-2019/utaipan/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-12-03 03:18:44,553 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-03 03:18:44,553 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-12-03 03:18:44,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-03 03:18:44,611 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-03 03:18:44,625 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 8 proven. 48 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-03 03:18:44,625 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-03 03:18:44,759 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 8 proven. 48 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-03 03:18:44,778 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-12-03 03:18:44,778 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 15 [2018-12-03 03:18:44,778 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-12-03 03:18:44,779 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-12-03 03:18:44,779 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-12-03 03:18:44,779 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=155, Unknown=0, NotChecked=0, Total=210 [2018-12-03 03:18:44,779 INFO L87 Difference]: Start difference. First operand 38 states and 39 transitions. Second operand 9 states. [2018-12-03 03:18:44,916 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-03 03:18:44,916 INFO L93 Difference]: Finished difference Result 58 states and 61 transitions. [2018-12-03 03:18:44,916 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-12-03 03:18:44,916 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 37 [2018-12-03 03:18:44,916 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-03 03:18:44,917 INFO L225 Difference]: With dead ends: 58 [2018-12-03 03:18:44,917 INFO L226 Difference]: Without dead ends: 48 [2018-12-03 03:18:44,917 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 66 SyntacticMatches, 3 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=117, Invalid=303, Unknown=0, NotChecked=0, Total=420 [2018-12-03 03:18:44,917 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2018-12-03 03:18:44,920 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 44. [2018-12-03 03:18:44,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44 states. [2018-12-03 03:18:44,920 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 45 transitions. [2018-12-03 03:18:44,920 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 45 transitions. Word has length 37 [2018-12-03 03:18:44,920 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-03 03:18:44,921 INFO L480 AbstractCegarLoop]: Abstraction has 44 states and 45 transitions. [2018-12-03 03:18:44,921 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-12-03 03:18:44,921 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 45 transitions. [2018-12-03 03:18:44,921 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2018-12-03 03:18:44,921 INFO L394 BasicCegarLoop]: Found error trace [2018-12-03 03:18:44,921 INFO L402 BasicCegarLoop]: trace histogram [6, 6, 6, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-03 03:18:44,921 INFO L423 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-03 03:18:44,921 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-03 03:18:44,921 INFO L82 PathProgramCache]: Analyzing trace with hash -1925178904, now seen corresponding path program 5 times [2018-12-03 03:18:44,921 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-03 03:18:44,922 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 03:18:44,922 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-03 03:18:44,922 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 03:18:44,922 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-03 03:18:44,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-03 03:18:45,019 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 10 proven. 75 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-03 03:18:45,019 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-03 03:18:45,019 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-03 03:18:45,019 INFO L187 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2018-12-03 03:18:45,019 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2018-12-03 03:18:45,019 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-03 03:18:45,019 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_b237499e-7b4f-4b46-bafd-2d2236d95bd1/bin-2019/utaipan/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-12-03 03:18:45,025 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2018-12-03 03:18:45,025 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder OUTSIDE_LOOP_FIRST2 (IT: FPandBP) [2018-12-03 03:18:45,120 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2018-12-03 03:18:45,120 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-12-03 03:18:45,124 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-03 03:18:45,175 WARN L307 Elim1Store]: Array PQE input equivalent to false [2018-12-03 03:18:45,176 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-12-03 03:18:45,184 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 15 [2018-12-03 03:18:45,191 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 15 treesize of output 12 [2018-12-03 03:18:45,191 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 2 xjuncts. [2018-12-03 03:18:45,194 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-12-03 03:18:45,198 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: and 2 xjuncts. [2018-12-03 03:18:45,198 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 4 variables, input treesize:62, output treesize:24 [2018-12-03 03:18:45,256 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 26 proven. 19 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2018-12-03 03:18:45,257 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-03 03:18:45,432 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 10 proven. 35 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2018-12-03 03:18:45,447 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-12-03 03:18:45,447 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8, 8] total 21 [2018-12-03 03:18:45,447 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-12-03 03:18:45,448 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2018-12-03 03:18:45,448 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2018-12-03 03:18:45,448 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=91, Invalid=329, Unknown=0, NotChecked=0, Total=420 [2018-12-03 03:18:45,448 INFO L87 Difference]: Start difference. First operand 44 states and 45 transitions. Second operand 15 states. [2018-12-03 03:18:46,042 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-03 03:18:46,042 INFO L93 Difference]: Finished difference Result 64 states and 68 transitions. [2018-12-03 03:18:46,042 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2018-12-03 03:18:46,042 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 43 [2018-12-03 03:18:46,043 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-03 03:18:46,043 INFO L225 Difference]: With dead ends: 64 [2018-12-03 03:18:46,043 INFO L226 Difference]: Without dead ends: 0 [2018-12-03 03:18:46,043 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 111 GetRequests, 75 SyntacticMatches, 1 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 171 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=349, Invalid=983, Unknown=0, NotChecked=0, Total=1332 [2018-12-03 03:18:46,044 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-12-03 03:18:46,044 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-12-03 03:18:46,044 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-12-03 03:18:46,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-12-03 03:18:46,044 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 43 [2018-12-03 03:18:46,044 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-03 03:18:46,044 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-12-03 03:18:46,044 INFO L481 AbstractCegarLoop]: Interpolant automaton has 15 states. [2018-12-03 03:18:46,044 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-12-03 03:18:46,044 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-12-03 03:18:46,047 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-12-03 03:18:46,289 WARN L180 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 45 [2018-12-03 03:18:46,291 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-12-03 03:18:46,291 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2018-12-03 03:18:46,291 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-12-03 03:18:46,291 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-12-03 03:18:46,291 INFO L444 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: (= ~Id_MCDC_93~0 0) [2018-12-03 03:18:46,291 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-12-03 03:18:46,291 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-12-03 03:18:46,291 INFO L448 ceAbstractionStarter]: For program point L159(lines 159 222) no Hoare annotation was computed. [2018-12-03 03:18:46,291 INFO L448 ceAbstractionStarter]: For program point mainEXIT(lines 131 223) no Hoare annotation was computed. [2018-12-03 03:18:46,291 INFO L448 ceAbstractionStarter]: For program point L180(lines 180 215) no Hoare annotation was computed. [2018-12-03 03:18:46,291 INFO L448 ceAbstractionStarter]: For program point L178(lines 178 220) no Hoare annotation was computed. [2018-12-03 03:18:46,291 INFO L448 ceAbstractionStarter]: For program point mainFINAL(lines 131 223) no Hoare annotation was computed. [2018-12-03 03:18:46,291 INFO L448 ceAbstractionStarter]: For program point L197(lines 197 207) no Hoare annotation was computed. [2018-12-03 03:18:46,291 INFO L448 ceAbstractionStarter]: For program point L191(line 191) no Hoare annotation was computed. [2018-12-03 03:18:46,292 INFO L444 ceAbstractionStarter]: At program point mainENTRY(lines 131 223) the Hoare annotation is: (or (not (= 0 |old(~Id_MCDC_93~0)|)) (= ~Id_MCDC_93~0 0)) [2018-12-03 03:18:46,292 INFO L448 ceAbstractionStarter]: For program point L189(lines 189 208) no Hoare annotation was computed. [2018-12-03 03:18:46,292 INFO L444 ceAbstractionStarter]: At program point L214(lines 180 215) the Hoare annotation is: (let ((.cse0 (= main_~Id_MCDC_89____CPAchecker_TMP_1~0 1)) (.cse1 (= |main_~#Id_MCDC_89__Id_MCDC_95~0.offset| 0)) (.cse2 (= 0 (select (select |#memory_int| |main_~#Id_MCDC_89__Id_MCDC_95~0.base|) (+ |main_~#Id_MCDC_89__Id_MCDC_95~0.offset| 492)))) (.cse3 (= ~Id_MCDC_93~0 main_~Id_MCDC_89__Id_MCDC_96~0))) (or (not (= 0 |old(~Id_MCDC_93~0)|)) (and .cse0 .cse1 .cse2 (< 0 (+ (div ~Id_MCDC_93~0 4294967296) 1)) (<= ~Id_MCDC_93~0 3) .cse3) (and .cse0 .cse1 .cse2 (< (mod ~Id_MCDC_93~0 4294967296) 42) (< (mod (+ main_~Id_MCDC_89__Id_MCDC_96~0 4294967295) 4294967296) 42) .cse3))) [2018-12-03 03:18:46,292 INFO L448 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 191) no Hoare annotation was computed. [2018-12-03 03:18:46,292 INFO L444 ceAbstractionStarter]: At program point L202(lines 165 221) the Hoare annotation is: (let ((.cse0 (= |main_~#Id_MCDC_89__Id_MCDC_95~0.offset| 0)) (.cse1 (= 0 (select (select |#memory_int| |main_~#Id_MCDC_89__Id_MCDC_95~0.base|) (+ |main_~#Id_MCDC_89__Id_MCDC_95~0.offset| 492))))) (or (and (<= main_~Id_MCDC_89__Id_MCDC_96~0 1) .cse0 (<= 1 main_~Id_MCDC_89__Id_MCDC_96~0) .cse1 (< 0 (+ (div ~Id_MCDC_93~0 4294967296) 1)) (<= ~Id_MCDC_93~0 3)) (not (= 0 |old(~Id_MCDC_93~0)|)) (let ((.cse2 (mod (+ ~Id_MCDC_93~0 4294967295) 4294967296)) (.cse3 (mod (+ main_~Id_MCDC_89__Id_MCDC_96~0 4294967295) 4294967296))) (and (< .cse2 42) .cse0 (not (= (* 12 .cse3) 492)) (not (= 492 (* 12 .cse2))) .cse1 (< .cse3 42))) (and .cse0 (= ~Id_MCDC_93~0 0) .cse1 (= 0 main_~Id_MCDC_89__Id_MCDC_96~0)))) [2018-12-03 03:18:46,296 WARN L1298 BoogieBacktranslator]: unknown boogie variable #memory_int [2018-12-03 03:18:46,296 WARN L1298 BoogieBacktranslator]: unknown boogie variable #memory_int [2018-12-03 03:18:46,300 WARN L1298 BoogieBacktranslator]: unknown boogie variable #memory_int [2018-12-03 03:18:46,300 WARN L1298 BoogieBacktranslator]: unknown boogie variable #memory_int [2018-12-03 03:18:46,301 WARN L1298 BoogieBacktranslator]: unknown boogie variable #memory_int [2018-12-03 03:18:46,301 WARN L1298 BoogieBacktranslator]: unknown boogie variable #memory_int [2018-12-03 03:18:46,301 WARN L1298 BoogieBacktranslator]: unknown boogie variable #memory_int [2018-12-03 03:18:46,301 WARN L1298 BoogieBacktranslator]: unknown boogie variable #memory_int [2018-12-03 03:18:46,302 WARN L1298 BoogieBacktranslator]: unknown boogie variable #memory_int [2018-12-03 03:18:46,302 WARN L1298 BoogieBacktranslator]: unknown boogie variable #memory_int [2018-12-03 03:18:46,303 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 03.12 03:18:46 BoogieIcfgContainer [2018-12-03 03:18:46,303 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-03 03:18:46,304 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-03 03:18:46,304 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-03 03:18:46,304 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-03 03:18:46,304 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 03:18:42" (3/4) ... [2018-12-03 03:18:46,306 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-12-03 03:18:46,309 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-12-03 03:18:46,310 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-12-03 03:18:46,314 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 78 nodes and edges [2018-12-03 03:18:46,314 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 42 nodes and edges [2018-12-03 03:18:46,314 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 19 nodes and edges [2018-12-03 03:18:46,315 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2018-12-03 03:18:46,315 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2018-12-03 03:18:46,315 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2018-12-03 03:18:46,315 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-12-03 03:18:46,334 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((Id_MCDC_89__Id_MCDC_96 <= 1 && Id_MCDC_89__Id_MCDC_95 == 0) && 1 <= Id_MCDC_89__Id_MCDC_96) && 0 == unknown-#memory_int-unknown[Id_MCDC_89__Id_MCDC_95][Id_MCDC_89__Id_MCDC_95 + 492]) && 0 < Id_MCDC_93 / 4294967296 + 1) && Id_MCDC_93 <= 3) || !(0 == \old(Id_MCDC_93))) || ((((((Id_MCDC_93 + 4294967295) % 4294967296 < 42 && Id_MCDC_89__Id_MCDC_95 == 0) && !(12 * ((Id_MCDC_89__Id_MCDC_96 + 4294967295) % 4294967296) == 492)) && !(492 == 12 * ((Id_MCDC_93 + 4294967295) % 4294967296))) && 0 == unknown-#memory_int-unknown[Id_MCDC_89__Id_MCDC_95][Id_MCDC_89__Id_MCDC_95 + 492]) && (Id_MCDC_89__Id_MCDC_96 + 4294967295) % 4294967296 < 42)) || (((Id_MCDC_89__Id_MCDC_95 == 0 && Id_MCDC_93 == 0) && 0 == unknown-#memory_int-unknown[Id_MCDC_89__Id_MCDC_95][Id_MCDC_89__Id_MCDC_95 + 492]) && 0 == Id_MCDC_89__Id_MCDC_96) [2018-12-03 03:18:46,335 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (!(0 == \old(Id_MCDC_93)) || (((((Id_MCDC_89____CPAchecker_TMP_1 == 1 && Id_MCDC_89__Id_MCDC_95 == 0) && 0 == unknown-#memory_int-unknown[Id_MCDC_89__Id_MCDC_95][Id_MCDC_89__Id_MCDC_95 + 492]) && 0 < Id_MCDC_93 / 4294967296 + 1) && Id_MCDC_93 <= 3) && Id_MCDC_93 == Id_MCDC_89__Id_MCDC_96)) || (((((Id_MCDC_89____CPAchecker_TMP_1 == 1 && Id_MCDC_89__Id_MCDC_95 == 0) && 0 == unknown-#memory_int-unknown[Id_MCDC_89__Id_MCDC_95][Id_MCDC_89__Id_MCDC_95 + 492]) && Id_MCDC_93 % 4294967296 < 42) && (Id_MCDC_89__Id_MCDC_96 + 4294967295) % 4294967296 < 42) && Id_MCDC_93 == Id_MCDC_89__Id_MCDC_96) [2018-12-03 03:18:46,383 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_b237499e-7b4f-4b46-bafd-2d2236d95bd1/bin-2019/utaipan/witness.graphml [2018-12-03 03:18:46,383 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-03 03:18:46,384 INFO L168 Benchmark]: Toolchain (without parser) took 4324.34 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 232.8 MB). Free memory was 949.7 MB in the beginning and 1.2 GB in the end (delta: -252.7 MB). There was no memory consumed. Max. memory is 11.5 GB. [2018-12-03 03:18:46,384 INFO L168 Benchmark]: CDTParser took 0.13 ms. Allocated memory is still 1.0 GB. Free memory is still 976.0 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-03 03:18:46,384 INFO L168 Benchmark]: CACSL2BoogieTranslator took 267.07 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 75.0 MB). Free memory was 949.7 MB in the beginning and 1.1 GB in the end (delta: -115.2 MB). Peak memory consumption was 27.5 MB. Max. memory is 11.5 GB. [2018-12-03 03:18:46,384 INFO L168 Benchmark]: Boogie Procedure Inliner took 18.98 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-03 03:18:46,384 INFO L168 Benchmark]: Boogie Preprocessor took 29.89 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 3.7 MB). Peak memory consumption was 3.7 MB. Max. memory is 11.5 GB. [2018-12-03 03:18:46,385 INFO L168 Benchmark]: RCFGBuilder took 297.48 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 990.1 MB in the end (delta: 71.1 MB). Peak memory consumption was 71.1 MB. Max. memory is 11.5 GB. [2018-12-03 03:18:46,385 INFO L168 Benchmark]: TraceAbstraction took 3628.00 ms. Allocated memory was 1.1 GB in the beginning and 1.3 GB in the end (delta: 157.8 MB). Free memory was 990.1 MB in the beginning and 1.2 GB in the end (delta: -236.3 MB). Peak memory consumption was 398.4 MB. Max. memory is 11.5 GB. [2018-12-03 03:18:46,385 INFO L168 Benchmark]: Witness Printer took 79.72 ms. Allocated memory is still 1.3 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 24.1 MB). Peak memory consumption was 24.1 MB. Max. memory is 11.5 GB. [2018-12-03 03:18:46,386 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13 ms. Allocated memory is still 1.0 GB. Free memory is still 976.0 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 267.07 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 75.0 MB). Free memory was 949.7 MB in the beginning and 1.1 GB in the end (delta: -115.2 MB). Peak memory consumption was 27.5 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 18.98 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 29.89 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 3.7 MB). Peak memory consumption was 3.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 297.48 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 990.1 MB in the end (delta: 71.1 MB). Peak memory consumption was 71.1 MB. Max. memory is 11.5 GB. * TraceAbstraction took 3628.00 ms. Allocated memory was 1.1 GB in the beginning and 1.3 GB in the end (delta: 157.8 MB). Free memory was 990.1 MB in the beginning and 1.2 GB in the end (delta: -236.3 MB). Peak memory consumption was 398.4 MB. Max. memory is 11.5 GB. * Witness Printer took 79.72 ms. Allocated memory is still 1.3 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 24.1 MB). Peak memory consumption was 24.1 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 191]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 180]: Loop Invariant [2018-12-03 03:18:46,389 WARN L1298 BoogieBacktranslator]: unknown boogie variable #memory_int [2018-12-03 03:18:46,389 WARN L1298 BoogieBacktranslator]: unknown boogie variable #memory_int [2018-12-03 03:18:46,390 WARN L1298 BoogieBacktranslator]: unknown boogie variable #memory_int [2018-12-03 03:18:46,390 WARN L1298 BoogieBacktranslator]: unknown boogie variable #memory_int Derived loop invariant: (!(0 == \old(Id_MCDC_93)) || (((((Id_MCDC_89____CPAchecker_TMP_1 == 1 && Id_MCDC_89__Id_MCDC_95 == 0) && 0 == unknown-#memory_int-unknown[Id_MCDC_89__Id_MCDC_95][Id_MCDC_89__Id_MCDC_95 + 492]) && 0 < Id_MCDC_93 / 4294967296 + 1) && Id_MCDC_93 <= 3) && Id_MCDC_93 == Id_MCDC_89__Id_MCDC_96)) || (((((Id_MCDC_89____CPAchecker_TMP_1 == 1 && Id_MCDC_89__Id_MCDC_95 == 0) && 0 == unknown-#memory_int-unknown[Id_MCDC_89__Id_MCDC_95][Id_MCDC_89__Id_MCDC_95 + 492]) && Id_MCDC_93 % 4294967296 < 42) && (Id_MCDC_89__Id_MCDC_96 + 4294967295) % 4294967296 < 42) && Id_MCDC_93 == Id_MCDC_89__Id_MCDC_96) - InvariantResult [Line: 165]: Loop Invariant [2018-12-03 03:18:46,390 WARN L1298 BoogieBacktranslator]: unknown boogie variable #memory_int [2018-12-03 03:18:46,390 WARN L1298 BoogieBacktranslator]: unknown boogie variable #memory_int [2018-12-03 03:18:46,390 WARN L1298 BoogieBacktranslator]: unknown boogie variable #memory_int [2018-12-03 03:18:46,391 WARN L1298 BoogieBacktranslator]: unknown boogie variable #memory_int [2018-12-03 03:18:46,391 WARN L1298 BoogieBacktranslator]: unknown boogie variable #memory_int [2018-12-03 03:18:46,391 WARN L1298 BoogieBacktranslator]: unknown boogie variable #memory_int Derived loop invariant: (((((((Id_MCDC_89__Id_MCDC_96 <= 1 && Id_MCDC_89__Id_MCDC_95 == 0) && 1 <= Id_MCDC_89__Id_MCDC_96) && 0 == unknown-#memory_int-unknown[Id_MCDC_89__Id_MCDC_95][Id_MCDC_89__Id_MCDC_95 + 492]) && 0 < Id_MCDC_93 / 4294967296 + 1) && Id_MCDC_93 <= 3) || !(0 == \old(Id_MCDC_93))) || ((((((Id_MCDC_93 + 4294967295) % 4294967296 < 42 && Id_MCDC_89__Id_MCDC_95 == 0) && !(12 * ((Id_MCDC_89__Id_MCDC_96 + 4294967295) % 4294967296) == 492)) && !(492 == 12 * ((Id_MCDC_93 + 4294967295) % 4294967296))) && 0 == unknown-#memory_int-unknown[Id_MCDC_89__Id_MCDC_95][Id_MCDC_89__Id_MCDC_95 + 492]) && (Id_MCDC_89__Id_MCDC_96 + 4294967295) % 4294967296 < 42)) || (((Id_MCDC_89__Id_MCDC_95 == 0 && Id_MCDC_93 == 0) && 0 == unknown-#memory_int-unknown[Id_MCDC_89__Id_MCDC_95][Id_MCDC_89__Id_MCDC_95 + 492]) && 0 == Id_MCDC_89__Id_MCDC_96) - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 19 locations, 1 error locations. SAFE Result, 3.5s OverallTime, 7 OverallIterations, 6 TraceHistogramMax, 1.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.2s HoareAnnotationTime, HoareTripleCheckerStatistics: 107 SDtfs, 239 SDslu, 327 SDs, 0 SdLazy, 600 SolverSat, 88 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 390 GetRequests, 277 SyntacticMatches, 14 SemanticMatches, 99 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 237 ImplicationChecksByTransitivity, 1.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=44occurred in iteration=6, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.2s AbstIntTime, 1 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 7 MinimizatonAttempts, 26 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 6 LocationsWithAnnotation, 6 PreInvPairs, 22 NumberOfFragments, 178 HoareAnnotationTreeSize, 6 FomulaSimplifications, 3190 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 6 FomulaSimplificationsInter, 616 FormulaSimplificationTreeSizeReductionInter, 0.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 1.2s InterpolantComputationTime, 336 NumberOfCodeBlocks, 318 NumberOfCodeBlocksAsserted, 17 NumberOfCheckSat, 474 ConstructedInterpolants, 25 QuantifiedInterpolants, 111504 SizeOfPredicates, 18 NumberOfNonLiveVariables, 2249 ConjunctsInSsa, 59 ConjunctsInUnsatCore, 17 InterpolantComputations, 2 PerfectInterpolantSequences, 186/585 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...