./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/bitvector/soft_float_5.c.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_b54ffa6b-9abc-4389-b4f9-4eeec7ff6d0f/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_b54ffa6b-9abc-4389-b4f9-4eeec7ff6d0f/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_b54ffa6b-9abc-4389-b4f9-4eeec7ff6d0f/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_b54ffa6b-9abc-4389-b4f9-4eeec7ff6d0f/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/bitvector/soft_float_5.c.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_b54ffa6b-9abc-4389-b4f9-4eeec7ff6d0f/bin/utaipan/config/svcomp-Overflow-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_b54ffa6b-9abc-4389-b4f9-4eeec7ff6d0f/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 32bit --witnessprinter.graph.data.programhash b5fc2694b4e742534272cd7ebdf39f18cbd96fd6 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Using bit-precise analysis No suitable file found in config dir /tmp/vcloud-vcloud-master/worker/run_dir_b54ffa6b-9abc-4389-b4f9-4eeec7ff6d0f/bin/utaipan/config using search string *Overflow*32bit*_Bitvector*.epf No suitable settings file found using Overflow*32bit*_Bitvector ERROR: UNSUPPORTED PROPERTY Writing output log to file Ultimate.log Result: UNKNOWN: Overapproximated counterexample --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-30 02:21:55,458 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-30 02:21:55,460 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-30 02:21:55,512 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-30 02:21:55,513 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-30 02:21:55,515 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-30 02:21:55,516 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-30 02:21:55,519 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-30 02:21:55,521 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-30 02:21:55,522 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-30 02:21:55,523 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-30 02:21:55,525 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-30 02:21:55,526 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-30 02:21:55,527 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-30 02:21:55,537 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-30 02:21:55,539 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-30 02:21:55,540 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-30 02:21:55,541 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-30 02:21:55,552 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-30 02:21:55,555 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-30 02:21:55,557 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-30 02:21:55,558 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-30 02:21:55,560 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-30 02:21:55,561 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-30 02:21:55,564 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-30 02:21:55,564 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-30 02:21:55,565 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-30 02:21:55,566 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-30 02:21:55,566 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-30 02:21:55,567 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-30 02:21:55,568 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-30 02:21:55,569 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-30 02:21:55,569 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-30 02:21:55,570 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-30 02:21:55,571 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-30 02:21:55,572 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-30 02:21:55,573 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-30 02:21:55,574 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-30 02:21:55,574 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-30 02:21:55,575 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-30 02:21:55,576 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-30 02:21:55,579 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_b54ffa6b-9abc-4389-b4f9-4eeec7ff6d0f/bin/utaipan/config/svcomp-Overflow-32bit-Taipan_Default.epf [2020-11-30 02:21:55,615 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-30 02:21:55,615 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-30 02:21:55,617 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-11-30 02:21:55,617 INFO L138 SettingsManager]: * User list type=DISABLED [2020-11-30 02:21:55,617 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-11-30 02:21:55,617 INFO L138 SettingsManager]: * Explicit value domain=true [2020-11-30 02:21:55,618 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2020-11-30 02:21:55,618 INFO L138 SettingsManager]: * Octagon Domain=false [2020-11-30 02:21:55,618 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-11-30 02:21:55,618 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2020-11-30 02:21:55,619 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2020-11-30 02:21:55,619 INFO L138 SettingsManager]: * Interval Domain=false [2020-11-30 02:21:55,620 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2020-11-30 02:21:55,620 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2020-11-30 02:21:55,620 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2020-11-30 02:21:55,621 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-30 02:21:55,621 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-30 02:21:55,621 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-30 02:21:55,621 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-30 02:21:55,621 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-30 02:21:55,621 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-30 02:21:55,622 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-30 02:21:55,622 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-30 02:21:55,622 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-30 02:21:55,622 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2020-11-30 02:21:55,622 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-30 02:21:55,623 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-30 02:21:55,623 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-30 02:21:55,623 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-30 02:21:55,624 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-30 02:21:55,625 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-30 02:21:55,625 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-30 02:21:55,625 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-30 02:21:55,625 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-30 02:21:55,626 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-30 02:21:55,626 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-30 02:21:55,626 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2020-11-30 02:21:55,626 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-30 02:21:55,626 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-30 02:21:55,627 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-30 02:21:55,627 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-11-30 02:21:55,627 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_b54ffa6b-9abc-4389-b4f9-4eeec7ff6d0f/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_b54ffa6b-9abc-4389-b4f9-4eeec7ff6d0f/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b5fc2694b4e742534272cd7ebdf39f18cbd96fd6 [2020-11-30 02:21:55,884 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-30 02:21:55,911 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-30 02:21:55,915 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-30 02:21:55,916 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-30 02:21:55,917 INFO L275 PluginConnector]: CDTParser initialized [2020-11-30 02:21:55,918 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_b54ffa6b-9abc-4389-b4f9-4eeec7ff6d0f/bin/utaipan/../../sv-benchmarks/c/bitvector/soft_float_5.c.cil.c [2020-11-30 02:21:55,982 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_b54ffa6b-9abc-4389-b4f9-4eeec7ff6d0f/bin/utaipan/data/44685e7a8/8f01c89e6ffb4f85ae38bac690e98e51/FLAG6e6819777 [2020-11-30 02:21:56,425 INFO L306 CDTParser]: Found 1 translation units. [2020-11-30 02:21:56,426 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_b54ffa6b-9abc-4389-b4f9-4eeec7ff6d0f/sv-benchmarks/c/bitvector/soft_float_5.c.cil.c [2020-11-30 02:21:56,436 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_b54ffa6b-9abc-4389-b4f9-4eeec7ff6d0f/bin/utaipan/data/44685e7a8/8f01c89e6ffb4f85ae38bac690e98e51/FLAG6e6819777 [2020-11-30 02:21:56,813 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_b54ffa6b-9abc-4389-b4f9-4eeec7ff6d0f/bin/utaipan/data/44685e7a8/8f01c89e6ffb4f85ae38bac690e98e51 [2020-11-30 02:21:56,815 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-30 02:21:56,817 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-30 02:21:56,820 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-30 02:21:56,820 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-30 02:21:56,824 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-30 02:21:56,825 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 02:21:56" (1/1) ... [2020-11-30 02:21:56,827 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@74a8be72 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 02:21:56, skipping insertion in model container [2020-11-30 02:21:56,827 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 02:21:56" (1/1) ... [2020-11-30 02:21:56,835 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-30 02:21:56,861 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-30 02:21:57,092 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 02:21:57,102 INFO L203 MainTranslator]: Completed pre-run [2020-11-30 02:21:57,158 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 02:21:57,173 INFO L208 MainTranslator]: Completed translation [2020-11-30 02:21:57,173 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 02:21:57 WrapperNode [2020-11-30 02:21:57,173 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-30 02:21:57,175 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-30 02:21:57,175 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-30 02:21:57,175 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-30 02:21:57,182 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 02:21:57" (1/1) ... [2020-11-30 02:21:57,191 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 02:21:57" (1/1) ... [2020-11-30 02:21:57,226 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-30 02:21:57,227 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-30 02:21:57,227 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-30 02:21:57,227 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-30 02:21:57,235 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 02:21:57" (1/1) ... [2020-11-30 02:21:57,235 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 02:21:57" (1/1) ... [2020-11-30 02:21:57,238 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 02:21:57" (1/1) ... [2020-11-30 02:21:57,238 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 02:21:57" (1/1) ... [2020-11-30 02:21:57,249 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 02:21:57" (1/1) ... [2020-11-30 02:21:57,260 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 02:21:57" (1/1) ... [2020-11-30 02:21:57,263 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 02:21:57" (1/1) ... [2020-11-30 02:21:57,267 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-30 02:21:57,268 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-30 02:21:57,268 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-30 02:21:57,269 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-30 02:21:57,270 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 02:21:57" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b54ffa6b-9abc-4389-b4f9-4eeec7ff6d0f/bin/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-30 02:21:57,328 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-30 02:21:57,329 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-30 02:21:57,329 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-30 02:21:57,329 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-30 02:21:58,418 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-30 02:21:58,418 INFO L298 CfgBuilder]: Removed 26 assume(true) statements. [2020-11-30 02:21:58,421 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 02:21:58 BoogieIcfgContainer [2020-11-30 02:21:58,421 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-30 02:21:58,423 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-30 02:21:58,423 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-30 02:21:58,431 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-30 02:21:58,432 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.11 02:21:56" (1/3) ... [2020-11-30 02:21:58,433 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@69aa306c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 02:21:58, skipping insertion in model container [2020-11-30 02:21:58,433 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 02:21:57" (2/3) ... [2020-11-30 02:21:58,433 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@69aa306c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 02:21:58, skipping insertion in model container [2020-11-30 02:21:58,433 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 02:21:58" (3/3) ... [2020-11-30 02:21:58,435 INFO L111 eAbstractionObserver]: Analyzing ICFG soft_float_5.c.cil.c [2020-11-30 02:21:58,448 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-30 02:21:58,452 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 46 error locations. [2020-11-30 02:21:58,464 INFO L253 AbstractCegarLoop]: Starting to check reachability of 46 error locations. [2020-11-30 02:21:58,488 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-30 02:21:58,489 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-30 02:21:58,489 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-30 02:21:58,489 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-30 02:21:58,489 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-30 02:21:58,489 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-30 02:21:58,489 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-30 02:21:58,490 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-30 02:21:58,509 INFO L276 IsEmpty]: Start isEmpty. Operand 142 states. [2020-11-30 02:21:58,514 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-11-30 02:21:58,514 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 02:21:58,515 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2020-11-30 02:21:58,515 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr34ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr36ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr44ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr38ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr42ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr40ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr45ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr35ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr43ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr41ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr39ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr37ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-11-30 02:21:58,520 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 02:21:58,521 INFO L82 PathProgramCache]: Analyzing trace with hash 550258955, now seen corresponding path program 1 times [2020-11-30 02:21:58,530 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-30 02:21:58,530 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2130120592] [2020-11-30 02:21:58,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 02:21:58,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 02:21:58,652 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 02:21:58,653 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2130120592] [2020-11-30 02:21:58,654 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 02:21:58,654 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-30 02:21:58,654 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2035551844] [2020-11-30 02:21:58,658 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-11-30 02:21:58,658 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-30 02:21:58,670 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-11-30 02:21:58,671 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-30 02:21:58,673 INFO L87 Difference]: Start difference. First operand 142 states. Second operand 2 states. [2020-11-30 02:21:58,701 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 02:21:58,701 INFO L93 Difference]: Finished difference Result 265 states and 333 transitions. [2020-11-30 02:21:58,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-11-30 02:21:58,702 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 6 [2020-11-30 02:21:58,702 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 02:21:58,713 INFO L225 Difference]: With dead ends: 265 [2020-11-30 02:21:58,713 INFO L226 Difference]: Without dead ends: 138 [2020-11-30 02:21:58,716 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-30 02:21:58,733 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 138 states. [2020-11-30 02:21:58,754 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 138 to 138. [2020-11-30 02:21:58,755 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 138 states. [2020-11-30 02:21:58,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138 states to 138 states and 162 transitions. [2020-11-30 02:21:58,759 INFO L78 Accepts]: Start accepts. Automaton has 138 states and 162 transitions. Word has length 6 [2020-11-30 02:21:58,759 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 02:21:58,759 INFO L481 AbstractCegarLoop]: Abstraction has 138 states and 162 transitions. [2020-11-30 02:21:58,760 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-11-30 02:21:58,760 INFO L276 IsEmpty]: Start isEmpty. Operand 138 states and 162 transitions. [2020-11-30 02:21:58,760 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-11-30 02:21:58,760 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 02:21:58,761 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2020-11-30 02:21:58,761 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-30 02:21:58,761 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr34ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr36ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr44ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr38ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr42ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr40ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr45ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr35ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr43ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr41ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr39ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr37ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-11-30 02:21:58,762 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 02:21:58,762 INFO L82 PathProgramCache]: Analyzing trace with hash 548951548, now seen corresponding path program 1 times [2020-11-30 02:21:58,762 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-30 02:21:58,763 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [106737922] [2020-11-30 02:21:58,763 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 02:21:58,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 02:21:58,815 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 02:21:58,815 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [106737922] [2020-11-30 02:21:58,816 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 02:21:58,816 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-11-30 02:21:58,816 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [29512654] [2020-11-30 02:21:58,817 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-30 02:21:58,817 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-30 02:21:58,818 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-30 02:21:58,818 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 02:21:58,819 INFO L87 Difference]: Start difference. First operand 138 states and 162 transitions. Second operand 3 states. [2020-11-30 02:21:59,069 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 02:21:59,069 INFO L93 Difference]: Finished difference Result 288 states and 342 transitions. [2020-11-30 02:21:59,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-30 02:21:59,072 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 6 [2020-11-30 02:21:59,072 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 02:21:59,074 INFO L225 Difference]: With dead ends: 288 [2020-11-30 02:21:59,074 INFO L226 Difference]: Without dead ends: 168 [2020-11-30 02:21:59,075 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 02:21:59,076 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 168 states. [2020-11-30 02:21:59,100 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 168 to 164. [2020-11-30 02:21:59,103 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 164 states. [2020-11-30 02:21:59,105 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 164 states to 164 states and 190 transitions. [2020-11-30 02:21:59,108 INFO L78 Accepts]: Start accepts. Automaton has 164 states and 190 transitions. Word has length 6 [2020-11-30 02:21:59,109 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 02:21:59,109 INFO L481 AbstractCegarLoop]: Abstraction has 164 states and 190 transitions. [2020-11-30 02:21:59,109 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-30 02:21:59,110 INFO L276 IsEmpty]: Start isEmpty. Operand 164 states and 190 transitions. [2020-11-30 02:21:59,110 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-11-30 02:21:59,111 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 02:21:59,111 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 02:21:59,111 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-30 02:21:59,112 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr34ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr36ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr44ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr38ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr42ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr40ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr45ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr35ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr43ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr41ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr39ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr37ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-11-30 02:21:59,113 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 02:21:59,113 INFO L82 PathProgramCache]: Analyzing trace with hash 323341695, now seen corresponding path program 1 times [2020-11-30 02:21:59,114 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-30 02:21:59,114 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [209864223] [2020-11-30 02:21:59,115 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 02:21:59,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 02:21:59,198 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 02:21:59,198 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [209864223] [2020-11-30 02:21:59,199 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 02:21:59,199 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-30 02:21:59,199 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1982032261] [2020-11-30 02:21:59,199 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-30 02:21:59,199 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-30 02:21:59,200 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-30 02:21:59,200 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 02:21:59,201 INFO L87 Difference]: Start difference. First operand 164 states and 190 transitions. Second operand 3 states. [2020-11-30 02:21:59,273 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 02:21:59,273 INFO L93 Difference]: Finished difference Result 289 states and 334 transitions. [2020-11-30 02:21:59,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-30 02:21:59,275 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2020-11-30 02:21:59,275 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 02:21:59,276 INFO L225 Difference]: With dead ends: 289 [2020-11-30 02:21:59,276 INFO L226 Difference]: Without dead ends: 127 [2020-11-30 02:21:59,278 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 02:21:59,278 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 127 states. [2020-11-30 02:21:59,294 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 127 to 127. [2020-11-30 02:21:59,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 127 states. [2020-11-30 02:21:59,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127 states to 127 states and 146 transitions. [2020-11-30 02:21:59,302 INFO L78 Accepts]: Start accepts. Automaton has 127 states and 146 transitions. Word has length 9 [2020-11-30 02:21:59,303 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 02:21:59,303 INFO L481 AbstractCegarLoop]: Abstraction has 127 states and 146 transitions. [2020-11-30 02:21:59,304 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-30 02:21:59,304 INFO L276 IsEmpty]: Start isEmpty. Operand 127 states and 146 transitions. [2020-11-30 02:21:59,304 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-11-30 02:21:59,305 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 02:21:59,305 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 02:21:59,305 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-30 02:21:59,306 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr34ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr36ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr44ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr38ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr42ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr40ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr45ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr35ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr43ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr41ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr39ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr37ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-11-30 02:21:59,307 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 02:21:59,308 INFO L82 PathProgramCache]: Analyzing trace with hash -212943908, now seen corresponding path program 1 times [2020-11-30 02:21:59,308 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-30 02:21:59,309 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1755077900] [2020-11-30 02:21:59,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 02:21:59,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 02:21:59,375 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 02:21:59,375 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1755077900] [2020-11-30 02:21:59,375 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 02:21:59,375 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-30 02:21:59,376 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1611719306] [2020-11-30 02:21:59,376 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-30 02:21:59,376 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-30 02:21:59,377 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-30 02:21:59,377 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-30 02:21:59,377 INFO L87 Difference]: Start difference. First operand 127 states and 146 transitions. Second operand 4 states. [2020-11-30 02:21:59,511 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 02:21:59,511 INFO L93 Difference]: Finished difference Result 178 states and 201 transitions. [2020-11-30 02:21:59,511 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-30 02:21:59,512 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 10 [2020-11-30 02:21:59,512 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 02:21:59,513 INFO L225 Difference]: With dead ends: 178 [2020-11-30 02:21:59,513 INFO L226 Difference]: Without dead ends: 171 [2020-11-30 02:21:59,514 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-11-30 02:21:59,515 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 171 states. [2020-11-30 02:21:59,522 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 171 to 128. [2020-11-30 02:21:59,522 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 128 states. [2020-11-30 02:21:59,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 128 states to 128 states and 148 transitions. [2020-11-30 02:21:59,526 INFO L78 Accepts]: Start accepts. Automaton has 128 states and 148 transitions. Word has length 10 [2020-11-30 02:21:59,526 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 02:21:59,526 INFO L481 AbstractCegarLoop]: Abstraction has 128 states and 148 transitions. [2020-11-30 02:21:59,526 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-30 02:21:59,526 INFO L276 IsEmpty]: Start isEmpty. Operand 128 states and 148 transitions. [2020-11-30 02:21:59,527 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-11-30 02:21:59,527 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 02:21:59,527 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 02:21:59,528 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-11-30 02:21:59,528 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr34ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr36ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr44ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr38ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr42ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr40ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr45ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr35ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr43ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr41ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr39ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr37ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-11-30 02:21:59,529 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 02:21:59,529 INFO L82 PathProgramCache]: Analyzing trace with hash 1988673661, now seen corresponding path program 1 times [2020-11-30 02:21:59,529 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-30 02:21:59,529 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1978026955] [2020-11-30 02:21:59,529 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 02:21:59,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 02:21:59,584 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 02:21:59,584 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1978026955] [2020-11-30 02:21:59,584 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 02:21:59,584 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-30 02:21:59,585 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [837287345] [2020-11-30 02:21:59,585 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-30 02:21:59,585 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-30 02:21:59,586 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-30 02:21:59,586 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 02:21:59,586 INFO L87 Difference]: Start difference. First operand 128 states and 148 transitions. Second operand 3 states. [2020-11-30 02:21:59,732 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 02:21:59,732 INFO L93 Difference]: Finished difference Result 169 states and 190 transitions. [2020-11-30 02:21:59,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-30 02:21:59,733 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 11 [2020-11-30 02:21:59,733 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 02:21:59,734 INFO L225 Difference]: With dead ends: 169 [2020-11-30 02:21:59,734 INFO L226 Difference]: Without dead ends: 163 [2020-11-30 02:21:59,735 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 02:21:59,735 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 163 states. [2020-11-30 02:21:59,741 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 163 to 123. [2020-11-30 02:21:59,741 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 123 states. [2020-11-30 02:21:59,742 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 123 states and 144 transitions. [2020-11-30 02:21:59,743 INFO L78 Accepts]: Start accepts. Automaton has 123 states and 144 transitions. Word has length 11 [2020-11-30 02:21:59,743 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 02:21:59,743 INFO L481 AbstractCegarLoop]: Abstraction has 123 states and 144 transitions. [2020-11-30 02:21:59,743 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-30 02:21:59,743 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 144 transitions. [2020-11-30 02:21:59,744 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-11-30 02:21:59,744 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 02:21:59,744 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 02:21:59,744 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-11-30 02:21:59,745 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr34ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr36ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr44ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr38ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr42ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr40ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr45ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr35ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr43ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr41ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr39ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr37ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-11-30 02:21:59,745 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 02:21:59,746 INFO L82 PathProgramCache]: Analyzing trace with hash 299368214, now seen corresponding path program 1 times [2020-11-30 02:21:59,746 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-30 02:21:59,746 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1423275460] [2020-11-30 02:21:59,746 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 02:21:59,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 02:21:59,788 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 02:21:59,788 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1423275460] [2020-11-30 02:21:59,788 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 02:21:59,789 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-30 02:21:59,789 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2093945044] [2020-11-30 02:21:59,789 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-30 02:21:59,789 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-30 02:21:59,790 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-30 02:21:59,790 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 02:21:59,790 INFO L87 Difference]: Start difference. First operand 123 states and 144 transitions. Second operand 3 states. [2020-11-30 02:21:59,856 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 02:21:59,856 INFO L93 Difference]: Finished difference Result 211 states and 244 transitions. [2020-11-30 02:21:59,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-30 02:21:59,857 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 11 [2020-11-30 02:21:59,857 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 02:21:59,858 INFO L225 Difference]: With dead ends: 211 [2020-11-30 02:21:59,858 INFO L226 Difference]: Without dead ends: 107 [2020-11-30 02:21:59,859 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 02:21:59,860 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107 states. [2020-11-30 02:21:59,865 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107 to 105. [2020-11-30 02:21:59,865 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 105 states. [2020-11-30 02:21:59,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 120 transitions. [2020-11-30 02:21:59,866 INFO L78 Accepts]: Start accepts. Automaton has 105 states and 120 transitions. Word has length 11 [2020-11-30 02:21:59,866 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 02:21:59,866 INFO L481 AbstractCegarLoop]: Abstraction has 105 states and 120 transitions. [2020-11-30 02:21:59,866 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-30 02:21:59,866 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 120 transitions. [2020-11-30 02:21:59,867 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-11-30 02:21:59,867 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 02:21:59,867 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 02:21:59,867 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-11-30 02:21:59,868 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr34ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr36ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr44ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr38ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr42ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr40ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr45ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr35ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr43ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr41ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr39ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr37ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-11-30 02:21:59,868 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 02:21:59,869 INFO L82 PathProgramCache]: Analyzing trace with hash -228312069, now seen corresponding path program 1 times [2020-11-30 02:21:59,869 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-30 02:21:59,869 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1445373671] [2020-11-30 02:21:59,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 02:21:59,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 02:21:59,914 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 02:21:59,914 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1445373671] [2020-11-30 02:21:59,914 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 02:21:59,914 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-30 02:21:59,915 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2042159802] [2020-11-30 02:21:59,915 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-30 02:21:59,915 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-30 02:21:59,915 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-30 02:21:59,916 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-30 02:21:59,916 INFO L87 Difference]: Start difference. First operand 105 states and 120 transitions. Second operand 4 states. [2020-11-30 02:22:00,054 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 02:22:00,055 INFO L93 Difference]: Finished difference Result 240 states and 271 transitions. [2020-11-30 02:22:00,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-30 02:22:00,055 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 13 [2020-11-30 02:22:00,056 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 02:22:00,057 INFO L225 Difference]: With dead ends: 240 [2020-11-30 02:22:00,057 INFO L226 Difference]: Without dead ends: 153 [2020-11-30 02:22:00,058 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-30 02:22:00,059 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 153 states. [2020-11-30 02:22:00,069 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 153 to 115. [2020-11-30 02:22:00,069 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 115 states. [2020-11-30 02:22:00,070 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 132 transitions. [2020-11-30 02:22:00,070 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 132 transitions. Word has length 13 [2020-11-30 02:22:00,070 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 02:22:00,071 INFO L481 AbstractCegarLoop]: Abstraction has 115 states and 132 transitions. [2020-11-30 02:22:00,071 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-30 02:22:00,071 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 132 transitions. [2020-11-30 02:22:00,072 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-11-30 02:22:00,072 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 02:22:00,072 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 02:22:00,073 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-11-30 02:22:00,073 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr34ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr36ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr44ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr38ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr42ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr40ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr45ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr35ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr43ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr41ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr39ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr37ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-11-30 02:22:00,074 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 02:22:00,074 INFO L82 PathProgramCache]: Analyzing trace with hash 1512260637, now seen corresponding path program 1 times [2020-11-30 02:22:00,074 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-30 02:22:00,075 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1886907805] [2020-11-30 02:22:00,075 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 02:22:00,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 02:22:00,141 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 02:22:00,141 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1886907805] [2020-11-30 02:22:00,141 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 02:22:00,141 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-30 02:22:00,142 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [588386013] [2020-11-30 02:22:00,142 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-30 02:22:00,142 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-30 02:22:00,143 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-30 02:22:00,143 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-30 02:22:00,143 INFO L87 Difference]: Start difference. First operand 115 states and 132 transitions. Second operand 4 states. [2020-11-30 02:22:00,269 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 02:22:00,270 INFO L93 Difference]: Finished difference Result 150 states and 167 transitions. [2020-11-30 02:22:00,270 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-30 02:22:00,270 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 14 [2020-11-30 02:22:00,270 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 02:22:00,271 INFO L225 Difference]: With dead ends: 150 [2020-11-30 02:22:00,272 INFO L226 Difference]: Without dead ends: 149 [2020-11-30 02:22:00,272 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-30 02:22:00,273 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 149 states. [2020-11-30 02:22:00,276 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 149 to 114. [2020-11-30 02:22:00,276 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 114 states. [2020-11-30 02:22:00,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 130 transitions. [2020-11-30 02:22:00,277 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 130 transitions. Word has length 14 [2020-11-30 02:22:00,277 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 02:22:00,299 INFO L481 AbstractCegarLoop]: Abstraction has 114 states and 130 transitions. [2020-11-30 02:22:00,299 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-30 02:22:00,299 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 130 transitions. [2020-11-30 02:22:00,301 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-11-30 02:22:00,301 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 02:22:00,301 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 02:22:00,301 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-11-30 02:22:00,302 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr34ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr36ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr44ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr38ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr42ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr40ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr45ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr35ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr43ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr41ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr39ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr37ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-11-30 02:22:00,302 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 02:22:00,302 INFO L82 PathProgramCache]: Analyzing trace with hash 198456420, now seen corresponding path program 1 times [2020-11-30 02:22:00,302 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-30 02:22:00,302 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1291499812] [2020-11-30 02:22:00,302 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 02:22:00,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 02:22:00,350 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-11-30 02:22:00,351 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1291499812] [2020-11-30 02:22:00,351 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 02:22:00,351 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-30 02:22:00,351 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2058993898] [2020-11-30 02:22:00,352 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-30 02:22:00,352 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-30 02:22:00,353 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-30 02:22:00,353 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-30 02:22:00,353 INFO L87 Difference]: Start difference. First operand 114 states and 130 transitions. Second operand 4 states. [2020-11-30 02:22:00,529 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 02:22:00,529 INFO L93 Difference]: Finished difference Result 202 states and 223 transitions. [2020-11-30 02:22:00,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-30 02:22:00,530 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 18 [2020-11-30 02:22:00,530 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 02:22:00,531 INFO L225 Difference]: With dead ends: 202 [2020-11-30 02:22:00,531 INFO L226 Difference]: Without dead ends: 196 [2020-11-30 02:22:00,532 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-30 02:22:00,533 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 196 states. [2020-11-30 02:22:00,537 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 196 to 117. [2020-11-30 02:22:00,537 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 117 states. [2020-11-30 02:22:00,538 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117 states to 117 states and 136 transitions. [2020-11-30 02:22:00,538 INFO L78 Accepts]: Start accepts. Automaton has 117 states and 136 transitions. Word has length 18 [2020-11-30 02:22:00,538 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 02:22:00,539 INFO L481 AbstractCegarLoop]: Abstraction has 117 states and 136 transitions. [2020-11-30 02:22:00,539 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-30 02:22:00,540 INFO L276 IsEmpty]: Start isEmpty. Operand 117 states and 136 transitions. [2020-11-30 02:22:00,540 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-11-30 02:22:00,541 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 02:22:00,541 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 02:22:00,541 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-11-30 02:22:00,541 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr34ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr36ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr44ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr38ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr42ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr40ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr45ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr35ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr43ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr41ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr39ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr37ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-11-30 02:22:00,542 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 02:22:00,542 INFO L82 PathProgramCache]: Analyzing trace with hash 1233972229, now seen corresponding path program 1 times [2020-11-30 02:22:00,543 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-30 02:22:00,543 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1486880108] [2020-11-30 02:22:00,543 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 02:22:00,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 02:22:00,639 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 02:22:00,640 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1486880108] [2020-11-30 02:22:00,640 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 02:22:00,640 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-30 02:22:00,640 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [922962926] [2020-11-30 02:22:00,640 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-30 02:22:00,641 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-30 02:22:00,641 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-30 02:22:00,641 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-30 02:22:00,641 INFO L87 Difference]: Start difference. First operand 117 states and 136 transitions. Second operand 4 states. [2020-11-30 02:22:00,742 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 02:22:00,742 INFO L93 Difference]: Finished difference Result 219 states and 254 transitions. [2020-11-30 02:22:00,743 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-30 02:22:00,743 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 23 [2020-11-30 02:22:00,743 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 02:22:00,744 INFO L225 Difference]: With dead ends: 219 [2020-11-30 02:22:00,744 INFO L226 Difference]: Without dead ends: 119 [2020-11-30 02:22:00,745 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-30 02:22:00,746 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119 states. [2020-11-30 02:22:00,750 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119 to 117. [2020-11-30 02:22:00,750 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 117 states. [2020-11-30 02:22:00,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117 states to 117 states and 135 transitions. [2020-11-30 02:22:00,751 INFO L78 Accepts]: Start accepts. Automaton has 117 states and 135 transitions. Word has length 23 [2020-11-30 02:22:00,751 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 02:22:00,751 INFO L481 AbstractCegarLoop]: Abstraction has 117 states and 135 transitions. [2020-11-30 02:22:00,751 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-30 02:22:00,751 INFO L276 IsEmpty]: Start isEmpty. Operand 117 states and 135 transitions. [2020-11-30 02:22:00,752 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-11-30 02:22:00,752 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 02:22:00,752 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 02:22:00,752 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-11-30 02:22:00,753 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr34ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr36ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr44ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr38ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr42ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr40ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr45ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr35ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr43ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr41ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr39ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr37ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-11-30 02:22:00,754 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 02:22:00,754 INFO L82 PathProgramCache]: Analyzing trace with hash -1947478118, now seen corresponding path program 1 times [2020-11-30 02:22:00,754 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-30 02:22:00,754 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1132304758] [2020-11-30 02:22:00,754 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 02:22:00,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 02:22:00,834 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 02:22:00,834 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1132304758] [2020-11-30 02:22:00,834 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [285503863] [2020-11-30 02:22:00,834 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b54ffa6b-9abc-4389-b4f9-4eeec7ff6d0f/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 [2020-11-30 02:22:00,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 02:22:00,924 INFO L263 TraceCheckSpWp]: Trace formula consists of 122 conjuncts, 5 conjunts are in the unsatisfiable core [2020-11-30 02:22:00,929 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 02:22:01,002 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 02:22:01,002 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-30 02:22:01,046 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 02:22:01,046 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [35030151] [2020-11-30 02:22:01,066 INFO L159 IcfgInterpreter]: Started Sifa with 19 locations of interest [2020-11-30 02:22:01,066 INFO L166 IcfgInterpreter]: Building call graph [2020-11-30 02:22:01,070 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2020-11-30 02:22:01,075 INFO L176 IcfgInterpreter]: Starting interpretation [2020-11-30 02:22:01,076 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2020-11-30 02:22:01,666 INFO L180 IcfgInterpreter]: Interpretation finished [2020-11-30 02:22:01,900 WARN L193 SmtUtils]: Spent 226.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 66 [2020-11-30 02:22:02,148 WARN L193 SmtUtils]: Spent 233.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 68 [2020-11-30 02:22:02,433 WARN L193 SmtUtils]: Spent 262.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 68 [2020-11-30 02:22:02,635 WARN L193 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 41 [2020-11-30 02:22:02,826 WARN L193 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 43 [2020-11-30 02:22:03,098 WARN L193 SmtUtils]: Spent 228.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 49 [2020-11-30 02:22:03,304 WARN L193 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 44 [2020-11-30 02:22:03,480 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 43 [2020-11-30 02:22:03,636 WARN L193 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 48 [2020-11-30 02:22:03,835 WARN L193 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 49 [2020-11-30 02:22:04,015 WARN L193 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 53 [2020-11-30 02:22:04,286 WARN L193 SmtUtils]: Spent 232.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 71 [2020-11-30 02:22:04,287 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 3 imperfect interpolant sequences. [2020-11-30 02:22:04,287 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [5, 5, 5] total 21 [2020-11-30 02:22:04,288 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1818288871] [2020-11-30 02:22:04,288 INFO L461 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-11-30 02:22:04,289 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-30 02:22:04,289 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-11-30 02:22:04,290 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=92, Invalid=328, Unknown=0, NotChecked=0, Total=420 [2020-11-30 02:22:04,290 INFO L87 Difference]: Start difference. First operand 117 states and 135 transitions. Second operand 14 states. [2020-11-30 02:22:04,471 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 48 [2020-11-30 02:22:04,747 WARN L193 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 51 [2020-11-30 02:22:05,273 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 02:22:05,273 INFO L93 Difference]: Finished difference Result 215 states and 243 transitions. [2020-11-30 02:22:05,279 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-11-30 02:22:05,279 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 25 [2020-11-30 02:22:05,279 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 02:22:05,281 INFO L225 Difference]: With dead ends: 215 [2020-11-30 02:22:05,281 INFO L226 Difference]: Without dead ends: 178 [2020-11-30 02:22:05,282 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 56 SyntacticMatches, 3 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 240 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=103, Invalid=403, Unknown=0, NotChecked=0, Total=506 [2020-11-30 02:22:05,282 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 178 states. [2020-11-30 02:22:05,291 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 178 to 136. [2020-11-30 02:22:05,292 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 136 states. [2020-11-30 02:22:05,292 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136 states to 136 states and 162 transitions. [2020-11-30 02:22:05,293 INFO L78 Accepts]: Start accepts. Automaton has 136 states and 162 transitions. Word has length 25 [2020-11-30 02:22:05,293 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 02:22:05,293 INFO L481 AbstractCegarLoop]: Abstraction has 136 states and 162 transitions. [2020-11-30 02:22:05,293 INFO L482 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-11-30 02:22:05,293 INFO L276 IsEmpty]: Start isEmpty. Operand 136 states and 162 transitions. [2020-11-30 02:22:05,294 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-11-30 02:22:05,294 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 02:22:05,294 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 02:22:05,517 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2020-11-30 02:22:05,517 INFO L429 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr34ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr36ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr44ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr38ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr42ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr40ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr45ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr35ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr43ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr41ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr39ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr37ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-11-30 02:22:05,518 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 02:22:05,518 INFO L82 PathProgramCache]: Analyzing trace with hash 1420604597, now seen corresponding path program 1 times [2020-11-30 02:22:05,518 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-30 02:22:05,518 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1899748390] [2020-11-30 02:22:05,519 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 02:22:05,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 02:22:05,584 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2020-11-30 02:22:05,584 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1899748390] [2020-11-30 02:22:05,584 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 02:22:05,585 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-30 02:22:05,585 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [806323476] [2020-11-30 02:22:05,585 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-30 02:22:05,585 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-30 02:22:05,586 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-30 02:22:05,586 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-30 02:22:05,586 INFO L87 Difference]: Start difference. First operand 136 states and 162 transitions. Second operand 4 states. [2020-11-30 02:22:05,714 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 02:22:05,714 INFO L93 Difference]: Finished difference Result 173 states and 200 transitions. [2020-11-30 02:22:05,714 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-30 02:22:05,715 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 25 [2020-11-30 02:22:05,715 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 02:22:05,716 INFO L225 Difference]: With dead ends: 173 [2020-11-30 02:22:05,716 INFO L226 Difference]: Without dead ends: 170 [2020-11-30 02:22:05,717 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-11-30 02:22:05,717 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 170 states. [2020-11-30 02:22:05,732 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 170 to 122. [2020-11-30 02:22:05,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 122 states. [2020-11-30 02:22:05,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 122 states and 144 transitions. [2020-11-30 02:22:05,733 INFO L78 Accepts]: Start accepts. Automaton has 122 states and 144 transitions. Word has length 25 [2020-11-30 02:22:05,744 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 02:22:05,744 INFO L481 AbstractCegarLoop]: Abstraction has 122 states and 144 transitions. [2020-11-30 02:22:05,744 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-30 02:22:05,745 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states and 144 transitions. [2020-11-30 02:22:05,745 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-11-30 02:22:05,746 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 02:22:05,749 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 02:22:05,750 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2020-11-30 02:22:05,750 INFO L429 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr34ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr36ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr44ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr38ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr42ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr40ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr45ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr35ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr43ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr41ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr39ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr37ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-11-30 02:22:05,751 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 02:22:05,751 INFO L82 PathProgramCache]: Analyzing trace with hash -361316634, now seen corresponding path program 1 times [2020-11-30 02:22:05,751 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-30 02:22:05,751 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [456268063] [2020-11-30 02:22:05,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 02:22:05,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 02:22:05,817 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2020-11-30 02:22:05,818 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [456268063] [2020-11-30 02:22:05,818 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 02:22:05,818 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-30 02:22:05,818 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [209680855] [2020-11-30 02:22:05,818 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-30 02:22:05,819 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-30 02:22:05,819 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-30 02:22:05,819 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-30 02:22:05,819 INFO L87 Difference]: Start difference. First operand 122 states and 144 transitions. Second operand 4 states. [2020-11-30 02:22:05,928 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 02:22:05,928 INFO L93 Difference]: Finished difference Result 166 states and 191 transitions. [2020-11-30 02:22:05,928 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-30 02:22:05,928 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 26 [2020-11-30 02:22:05,929 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 02:22:05,929 INFO L225 Difference]: With dead ends: 166 [2020-11-30 02:22:05,930 INFO L226 Difference]: Without dead ends: 164 [2020-11-30 02:22:05,930 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-11-30 02:22:05,930 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 164 states. [2020-11-30 02:22:05,938 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 164 to 122. [2020-11-30 02:22:05,938 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 122 states. [2020-11-30 02:22:05,939 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 122 states and 143 transitions. [2020-11-30 02:22:05,939 INFO L78 Accepts]: Start accepts. Automaton has 122 states and 143 transitions. Word has length 26 [2020-11-30 02:22:05,939 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 02:22:05,939 INFO L481 AbstractCegarLoop]: Abstraction has 122 states and 143 transitions. [2020-11-30 02:22:05,940 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-30 02:22:05,940 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states and 143 transitions. [2020-11-30 02:22:05,940 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-11-30 02:22:05,941 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 02:22:05,941 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 02:22:05,941 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2020-11-30 02:22:05,941 INFO L429 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr34ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr36ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr44ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr38ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr42ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr40ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr45ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr35ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr43ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr41ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr39ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr37ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-11-30 02:22:05,942 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 02:22:05,942 INFO L82 PathProgramCache]: Analyzing trace with hash 1089069810, now seen corresponding path program 1 times [2020-11-30 02:22:05,942 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-30 02:22:05,942 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1274507426] [2020-11-30 02:22:05,942 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 02:22:05,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 02:22:05,975 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 02:22:05,975 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1274507426] [2020-11-30 02:22:05,976 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2062499334] [2020-11-30 02:22:05,976 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b54ffa6b-9abc-4389-b4f9-4eeec7ff6d0f/bin/utaipan/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-30 02:22:06,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 02:22:06,039 INFO L263 TraceCheckSpWp]: Trace formula consists of 99 conjuncts, 5 conjunts are in the unsatisfiable core [2020-11-30 02:22:06,041 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 02:22:06,063 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 02:22:06,064 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-30 02:22:06,114 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 02:22:06,115 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1500237924] [2020-11-30 02:22:06,117 INFO L159 IcfgInterpreter]: Started Sifa with 20 locations of interest [2020-11-30 02:22:06,117 INFO L166 IcfgInterpreter]: Building call graph [2020-11-30 02:22:06,118 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2020-11-30 02:22:06,118 INFO L176 IcfgInterpreter]: Starting interpretation [2020-11-30 02:22:06,118 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2020-11-30 02:22:06,435 INFO L180 IcfgInterpreter]: Interpretation finished [2020-11-30 02:22:06,642 WARN L193 SmtUtils]: Spent 195.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 49 [2020-11-30 02:22:06,860 WARN L193 SmtUtils]: Spent 202.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 66 [2020-11-30 02:22:07,133 WARN L193 SmtUtils]: Spent 221.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 68 [2020-11-30 02:22:07,319 WARN L193 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 68 [2020-11-30 02:22:07,540 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 41 [2020-11-30 02:22:07,708 WARN L193 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 43 [2020-11-30 02:22:07,962 WARN L193 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 49 [2020-11-30 02:22:08,160 WARN L193 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 44 [2020-11-30 02:22:08,415 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 47 [2020-11-30 02:22:08,565 WARN L193 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 47 [2020-11-30 02:22:08,753 WARN L193 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 49 [2020-11-30 02:22:08,954 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 47 [2020-11-30 02:22:09,045 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-11-30 02:22:09,045 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2020-11-30 02:22:09,045 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 9 [2020-11-30 02:22:09,045 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [461396738] [2020-11-30 02:22:09,046 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-11-30 02:22:09,046 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-30 02:22:09,046 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-11-30 02:22:09,047 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=104, Invalid=358, Unknown=0, NotChecked=0, Total=462 [2020-11-30 02:22:09,047 INFO L87 Difference]: Start difference. First operand 122 states and 143 transitions. Second operand 9 states. [2020-11-30 02:22:09,238 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 02:22:09,238 INFO L93 Difference]: Finished difference Result 299 states and 346 transitions. [2020-11-30 02:22:09,240 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-11-30 02:22:09,240 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 26 [2020-11-30 02:22:09,241 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 02:22:09,242 INFO L225 Difference]: With dead ends: 299 [2020-11-30 02:22:09,242 INFO L226 Difference]: Without dead ends: 201 [2020-11-30 02:22:09,243 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 56 SyntacticMatches, 5 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 284 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=104, Invalid=358, Unknown=0, NotChecked=0, Total=462 [2020-11-30 02:22:09,244 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 201 states. [2020-11-30 02:22:09,255 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 201 to 142. [2020-11-30 02:22:09,255 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 142 states. [2020-11-30 02:22:09,256 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142 states to 142 states and 167 transitions. [2020-11-30 02:22:09,256 INFO L78 Accepts]: Start accepts. Automaton has 142 states and 167 transitions. Word has length 26 [2020-11-30 02:22:09,258 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 02:22:09,259 INFO L481 AbstractCegarLoop]: Abstraction has 142 states and 167 transitions. [2020-11-30 02:22:09,259 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-11-30 02:22:09,259 INFO L276 IsEmpty]: Start isEmpty. Operand 142 states and 167 transitions. [2020-11-30 02:22:09,261 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2020-11-30 02:22:09,261 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 02:22:09,261 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 02:22:09,477 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2020-11-30 02:22:09,477 INFO L429 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr34ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr36ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr44ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr38ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr42ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr40ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr45ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr35ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr43ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr41ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr39ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr37ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-11-30 02:22:09,478 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 02:22:09,478 INFO L82 PathProgramCache]: Analyzing trace with hash 1127494958, now seen corresponding path program 1 times [2020-11-30 02:22:09,478 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-30 02:22:09,478 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [30048022] [2020-11-30 02:22:09,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 02:22:09,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 02:22:09,582 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 02:22:09,583 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [30048022] [2020-11-30 02:22:09,583 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1144934729] [2020-11-30 02:22:09,583 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b54ffa6b-9abc-4389-b4f9-4eeec7ff6d0f/bin/utaipan/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-30 02:22:09,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 02:22:09,645 INFO L263 TraceCheckSpWp]: Trace formula consists of 125 conjuncts, 9 conjunts are in the unsatisfiable core [2020-11-30 02:22:09,650 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 02:22:09,716 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 02:22:09,716 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-30 02:22:09,810 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 02:22:09,811 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1587823889] [2020-11-30 02:22:09,814 INFO L159 IcfgInterpreter]: Started Sifa with 24 locations of interest [2020-11-30 02:22:09,815 INFO L166 IcfgInterpreter]: Building call graph [2020-11-30 02:22:09,816 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2020-11-30 02:22:09,816 INFO L176 IcfgInterpreter]: Starting interpretation [2020-11-30 02:22:09,816 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2020-11-30 02:22:10,132 INFO L180 IcfgInterpreter]: Interpretation finished [2020-11-30 02:22:10,404 WARN L193 SmtUtils]: Spent 245.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 66 [2020-11-30 02:22:10,703 WARN L193 SmtUtils]: Spent 264.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 68 [2020-11-30 02:22:11,014 WARN L193 SmtUtils]: Spent 279.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 68 [2020-11-30 02:22:11,222 WARN L193 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 41 [2020-11-30 02:22:11,371 WARN L193 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 43 [2020-11-30 02:22:11,693 WARN L193 SmtUtils]: Spent 235.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 49 [2020-11-30 02:22:12,074 WARN L193 SmtUtils]: Spent 291.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 53 [2020-11-30 02:22:12,278 WARN L193 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 45 [2020-11-30 02:22:12,606 WARN L193 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 48 [2020-11-30 02:22:12,746 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 41 [2020-11-30 02:22:12,976 WARN L193 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 46 [2020-11-30 02:22:13,164 WARN L193 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 47 [2020-11-30 02:22:13,373 WARN L193 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 51 [2020-11-30 02:22:13,651 WARN L193 SmtUtils]: Spent 215.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 69 [2020-11-30 02:22:13,652 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 3 imperfect interpolant sequences. [2020-11-30 02:22:13,652 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [5, 5, 5] total 23 [2020-11-30 02:22:13,652 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [193685384] [2020-11-30 02:22:13,653 INFO L461 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-11-30 02:22:13,653 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-30 02:22:13,653 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-11-30 02:22:13,654 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=96, Invalid=410, Unknown=0, NotChecked=0, Total=506 [2020-11-30 02:22:13,654 INFO L87 Difference]: Start difference. First operand 142 states and 167 transitions. Second operand 16 states. [2020-11-30 02:22:13,999 WARN L193 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 48 [2020-11-30 02:22:14,913 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 02:22:14,913 INFO L93 Difference]: Finished difference Result 233 states and 265 transitions. [2020-11-30 02:22:14,918 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-11-30 02:22:14,918 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 28 [2020-11-30 02:22:14,918 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 02:22:14,919 INFO L225 Difference]: With dead ends: 233 [2020-11-30 02:22:14,920 INFO L226 Difference]: Without dead ends: 198 [2020-11-30 02:22:14,920 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 59 SyntacticMatches, 7 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 243 ImplicationChecksByTransitivity, 3.9s TimeCoverageRelationStatistics Valid=102, Invalid=450, Unknown=0, NotChecked=0, Total=552 [2020-11-30 02:22:14,921 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 198 states. [2020-11-30 02:22:14,930 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 198 to 140. [2020-11-30 02:22:14,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 140 states. [2020-11-30 02:22:14,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 140 states and 164 transitions. [2020-11-30 02:22:14,931 INFO L78 Accepts]: Start accepts. Automaton has 140 states and 164 transitions. Word has length 28 [2020-11-30 02:22:14,931 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 02:22:14,931 INFO L481 AbstractCegarLoop]: Abstraction has 140 states and 164 transitions. [2020-11-30 02:22:14,932 INFO L482 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-11-30 02:22:14,932 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 164 transitions. [2020-11-30 02:22:14,932 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2020-11-30 02:22:14,932 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 02:22:14,932 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 02:22:15,145 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable38 [2020-11-30 02:22:15,146 INFO L429 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr34ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr36ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr44ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr38ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr42ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr40ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr45ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr35ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr43ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr41ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr39ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr37ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-11-30 02:22:15,146 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 02:22:15,146 INFO L82 PathProgramCache]: Analyzing trace with hash 1923954654, now seen corresponding path program 1 times [2020-11-30 02:22:15,146 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-30 02:22:15,146 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [186314390] [2020-11-30 02:22:15,146 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 02:22:15,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 02:22:15,237 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 02:22:15,237 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [186314390] [2020-11-30 02:22:15,238 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1152395853] [2020-11-30 02:22:15,238 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b54ffa6b-9abc-4389-b4f9-4eeec7ff6d0f/bin/utaipan/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-30 02:22:15,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 02:22:15,298 INFO L263 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 9 conjunts are in the unsatisfiable core [2020-11-30 02:22:15,300 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 02:22:15,355 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 02:22:15,355 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-30 02:22:15,437 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 02:22:15,438 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [22365666] [2020-11-30 02:22:15,440 INFO L159 IcfgInterpreter]: Started Sifa with 25 locations of interest [2020-11-30 02:22:15,440 INFO L166 IcfgInterpreter]: Building call graph [2020-11-30 02:22:15,440 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2020-11-30 02:22:15,441 INFO L176 IcfgInterpreter]: Starting interpretation [2020-11-30 02:22:15,441 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2020-11-30 02:22:15,756 INFO L180 IcfgInterpreter]: Interpretation finished [2020-11-30 02:22:15,967 WARN L193 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 47 [2020-11-30 02:22:16,207 WARN L193 SmtUtils]: Spent 205.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 66 [2020-11-30 02:22:16,431 WARN L193 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 68 [2020-11-30 02:22:16,650 WARN L193 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 68 [2020-11-30 02:22:17,063 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 43 [2020-11-30 02:22:17,318 WARN L193 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 49 [2020-11-30 02:22:17,558 WARN L193 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 53 [2020-11-30 02:22:17,725 WARN L193 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 45 [2020-11-30 02:22:18,114 WARN L193 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 48 [2020-11-30 02:22:18,438 WARN L193 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 45 [2020-11-30 02:22:18,606 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 45 [2020-11-30 02:22:18,783 WARN L193 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 47 [2020-11-30 02:22:18,939 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 45 [2020-11-30 02:22:19,035 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-11-30 02:22:19,035 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2020-11-30 02:22:19,036 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 9 [2020-11-30 02:22:19,036 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [319406868] [2020-11-30 02:22:19,036 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-11-30 02:22:19,036 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-30 02:22:19,037 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-11-30 02:22:19,037 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=93, Invalid=459, Unknown=0, NotChecked=0, Total=552 [2020-11-30 02:22:19,037 INFO L87 Difference]: Start difference. First operand 140 states and 164 transitions. Second operand 9 states. [2020-11-30 02:22:21,180 WARN L193 SmtUtils]: Spent 2.07 s on a formula simplification that was a NOOP. DAG size: 14 [2020-11-30 02:22:21,407 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 02:22:21,408 INFO L93 Difference]: Finished difference Result 313 states and 355 transitions. [2020-11-30 02:22:21,422 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-11-30 02:22:21,422 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 29 [2020-11-30 02:22:21,422 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 02:22:21,424 INFO L225 Difference]: With dead ends: 313 [2020-11-30 02:22:21,425 INFO L226 Difference]: Without dead ends: 210 [2020-11-30 02:22:21,426 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 59 SyntacticMatches, 9 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 312 ImplicationChecksByTransitivity, 5.5s TimeCoverageRelationStatistics Valid=117, Invalid=533, Unknown=0, NotChecked=0, Total=650 [2020-11-30 02:22:21,427 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 210 states. [2020-11-30 02:22:21,442 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 210 to 140. [2020-11-30 02:22:21,442 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 140 states. [2020-11-30 02:22:21,445 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 140 states and 160 transitions. [2020-11-30 02:22:21,445 INFO L78 Accepts]: Start accepts. Automaton has 140 states and 160 transitions. Word has length 29 [2020-11-30 02:22:21,445 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 02:22:21,445 INFO L481 AbstractCegarLoop]: Abstraction has 140 states and 160 transitions. [2020-11-30 02:22:21,446 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-11-30 02:22:21,446 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 160 transitions. [2020-11-30 02:22:21,446 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2020-11-30 02:22:21,446 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 02:22:21,447 INFO L422 BasicCegarLoop]: trace histogram [7, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 02:22:21,647 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-30 02:22:21,647 INFO L429 AbstractCegarLoop]: === Iteration 17 === [ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr34ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr36ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr44ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr38ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr42ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr40ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr45ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr35ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr43ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr41ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr39ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr37ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-11-30 02:22:21,648 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 02:22:21,648 INFO L82 PathProgramCache]: Analyzing trace with hash -181010510, now seen corresponding path program 2 times [2020-11-30 02:22:21,648 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-30 02:22:21,648 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1520102410] [2020-11-30 02:22:21,648 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 02:22:21,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 02:22:21,727 INFO L134 CoverageAnalysis]: Checked inductivity of 87 backedges. 0 proven. 87 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 02:22:21,727 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1520102410] [2020-11-30 02:22:21,727 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1656654400] [2020-11-30 02:22:21,728 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b54ffa6b-9abc-4389-b4f9-4eeec7ff6d0f/bin/utaipan/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-30 02:22:21,799 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 7 check-sat command(s) [2020-11-30 02:22:21,799 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-11-30 02:22:21,800 INFO L263 TraceCheckSpWp]: Trace formula consists of 135 conjuncts, 9 conjunts are in the unsatisfiable core [2020-11-30 02:22:21,802 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 02:22:21,835 INFO L134 CoverageAnalysis]: Checked inductivity of 87 backedges. 0 proven. 87 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 02:22:21,835 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-30 02:22:21,970 INFO L134 CoverageAnalysis]: Checked inductivity of 87 backedges. 0 proven. 87 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 02:22:21,970 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [61072686] [2020-11-30 02:22:21,972 INFO L159 IcfgInterpreter]: Started Sifa with 20 locations of interest [2020-11-30 02:22:21,972 INFO L166 IcfgInterpreter]: Building call graph [2020-11-30 02:22:21,973 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2020-11-30 02:22:21,973 INFO L176 IcfgInterpreter]: Starting interpretation [2020-11-30 02:22:21,973 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2020-11-30 02:22:22,304 INFO L180 IcfgInterpreter]: Interpretation finished [2020-11-30 02:22:22,479 WARN L193 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 49 [2020-11-30 02:22:22,733 WARN L193 SmtUtils]: Spent 232.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 66 [2020-11-30 02:22:22,992 WARN L193 SmtUtils]: Spent 232.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 68 [2020-11-30 02:22:23,215 WARN L193 SmtUtils]: Spent 195.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 68 [2020-11-30 02:22:23,483 WARN L193 SmtUtils]: Spent 203.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 41 [2020-11-30 02:22:23,654 WARN L193 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 43 [2020-11-30 02:22:23,888 WARN L193 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 49 [2020-11-30 02:22:24,189 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 44 [2020-11-30 02:22:24,515 WARN L193 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 47 [2020-11-30 02:22:24,725 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 47 [2020-11-30 02:22:24,938 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 49 [2020-11-30 02:22:25,133 WARN L193 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 47 [2020-11-30 02:22:25,310 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-11-30 02:22:25,311 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2020-11-30 02:22:25,311 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 17 [2020-11-30 02:22:25,311 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1330637778] [2020-11-30 02:22:25,311 INFO L461 AbstractCegarLoop]: Interpolant automaton has 17 states [2020-11-30 02:22:25,312 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-30 02:22:25,312 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2020-11-30 02:22:25,313 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=236, Invalid=634, Unknown=0, NotChecked=0, Total=870 [2020-11-30 02:22:25,313 INFO L87 Difference]: Start difference. First operand 140 states and 160 transitions. Second operand 17 states. [2020-11-30 02:22:25,791 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 02:22:25,791 INFO L93 Difference]: Finished difference Result 361 states and 415 transitions. [2020-11-30 02:22:25,792 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-11-30 02:22:25,792 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 46 [2020-11-30 02:22:25,792 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 02:22:25,793 INFO L225 Difference]: With dead ends: 361 [2020-11-30 02:22:25,794 INFO L226 Difference]: Without dead ends: 263 [2020-11-30 02:22:25,794 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 145 GetRequests, 108 SyntacticMatches, 9 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 632 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=236, Invalid=634, Unknown=0, NotChecked=0, Total=870 [2020-11-30 02:22:25,795 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 263 states. [2020-11-30 02:22:25,810 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 263 to 180. [2020-11-30 02:22:25,810 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 180 states. [2020-11-30 02:22:25,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 180 states to 180 states and 208 transitions. [2020-11-30 02:22:25,811 INFO L78 Accepts]: Start accepts. Automaton has 180 states and 208 transitions. Word has length 46 [2020-11-30 02:22:25,812 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 02:22:25,812 INFO L481 AbstractCegarLoop]: Abstraction has 180 states and 208 transitions. [2020-11-30 02:22:25,813 INFO L482 AbstractCegarLoop]: Interpolant automaton has 17 states. [2020-11-30 02:22:25,813 INFO L276 IsEmpty]: Start isEmpty. Operand 180 states and 208 transitions. [2020-11-30 02:22:25,814 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2020-11-30 02:22:25,814 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 02:22:25,814 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 02:22:26,029 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable64 [2020-11-30 02:22:26,029 INFO L429 AbstractCegarLoop]: === Iteration 18 === [ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr34ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr36ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr44ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr38ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr42ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr40ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr45ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr35ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr43ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr41ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr39ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr37ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-11-30 02:22:26,030 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 02:22:26,030 INFO L82 PathProgramCache]: Analyzing trace with hash -671948002, now seen corresponding path program 2 times [2020-11-30 02:22:26,030 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-30 02:22:26,030 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1718866700] [2020-11-30 02:22:26,030 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 02:22:26,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 02:22:26,232 INFO L134 CoverageAnalysis]: Checked inductivity of 75 backedges. 0 proven. 75 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 02:22:26,232 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1718866700] [2020-11-30 02:22:26,232 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1302246469] [2020-11-30 02:22:26,232 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b54ffa6b-9abc-4389-b4f9-4eeec7ff6d0f/bin/utaipan/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-30 02:22:26,363 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2020-11-30 02:22:26,363 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-11-30 02:22:26,365 INFO L263 TraceCheckSpWp]: Trace formula consists of 138 conjuncts, 17 conjunts are in the unsatisfiable core [2020-11-30 02:22:26,366 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 02:22:26,589 INFO L134 CoverageAnalysis]: Checked inductivity of 75 backedges. 0 proven. 75 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 02:22:26,589 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-30 02:22:26,963 INFO L134 CoverageAnalysis]: Checked inductivity of 75 backedges. 0 proven. 75 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 02:22:26,963 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1494165704] [2020-11-30 02:22:26,966 INFO L159 IcfgInterpreter]: Started Sifa with 25 locations of interest [2020-11-30 02:22:26,966 INFO L166 IcfgInterpreter]: Building call graph [2020-11-30 02:22:26,966 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2020-11-30 02:22:26,967 INFO L176 IcfgInterpreter]: Starting interpretation [2020-11-30 02:22:26,967 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2020-11-30 02:22:27,318 INFO L180 IcfgInterpreter]: Interpretation finished [2020-11-30 02:22:27,593 WARN L193 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 47 [2020-11-30 02:22:28,040 WARN L193 SmtUtils]: Spent 354.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 66 [2020-11-30 02:22:28,515 WARN L193 SmtUtils]: Spent 364.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 68 [2020-11-30 02:22:29,010 WARN L193 SmtUtils]: Spent 375.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 68 [2020-11-30 02:22:29,365 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 41 [2020-11-30 02:22:29,606 WARN L193 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 43 [2020-11-30 02:22:29,943 WARN L193 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 49 [2020-11-30 02:22:30,558 WARN L193 SmtUtils]: Spent 215.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 53 [2020-11-30 02:22:30,750 WARN L193 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 45 [2020-11-30 02:22:31,214 WARN L193 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 48 [2020-11-30 02:22:31,603 WARN L193 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 45 [2020-11-30 02:22:31,847 WARN L193 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 45 [2020-11-30 02:22:32,119 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 47 [2020-11-30 02:22:32,338 WARN L193 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 45 [2020-11-30 02:22:32,569 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-11-30 02:22:32,569 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2020-11-30 02:22:32,569 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 17 [2020-11-30 02:22:32,569 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1438258595] [2020-11-30 02:22:32,570 INFO L461 AbstractCegarLoop]: Interpolant automaton has 17 states [2020-11-30 02:22:32,570 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-30 02:22:32,570 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2020-11-30 02:22:32,571 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=169, Invalid=823, Unknown=0, NotChecked=0, Total=992 [2020-11-30 02:22:32,571 INFO L87 Difference]: Start difference. First operand 180 states and 208 transitions. Second operand 17 states. [2020-11-30 02:22:49,268 WARN L193 SmtUtils]: Spent 16.42 s on a formula simplification. DAG size of input: 30 DAG size of output: 14 [2020-11-30 02:23:06,083 WARN L193 SmtUtils]: Spent 10.59 s on a formula simplification. DAG size of input: 26 DAG size of output: 14 [2020-11-30 02:23:20,873 WARN L193 SmtUtils]: Spent 8.47 s on a formula simplification. DAG size of input: 22 DAG size of output: 18 [2020-11-30 02:23:29,829 WARN L193 SmtUtils]: Spent 2.17 s on a formula simplification. DAG size of input: 18 DAG size of output: 10 [2020-11-30 02:23:42,442 WARN L193 SmtUtils]: Spent 2.10 s on a formula simplification that was a NOOP. DAG size: 14 [2020-11-30 02:23:47,163 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 02:23:47,164 INFO L93 Difference]: Finished difference Result 353 states and 399 transitions. [2020-11-30 02:23:47,165 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-11-30 02:23:47,166 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 49 [2020-11-30 02:23:47,166 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 02:23:47,167 INFO L225 Difference]: With dead ends: 353 [2020-11-30 02:23:47,167 INFO L226 Difference]: Without dead ends: 250 [2020-11-30 02:23:47,168 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 160 GetRequests, 107 SyntacticMatches, 17 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 562 ImplicationChecksByTransitivity, 75.1s TimeCoverageRelationStatistics Valid=282, Invalid=1112, Unknown=12, NotChecked=0, Total=1406 [2020-11-30 02:23:47,169 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 250 states. [2020-11-30 02:23:47,180 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 250 to 180. [2020-11-30 02:23:47,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 180 states. [2020-11-30 02:23:47,181 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 180 states to 180 states and 200 transitions. [2020-11-30 02:23:47,181 INFO L78 Accepts]: Start accepts. Automaton has 180 states and 200 transitions. Word has length 49 [2020-11-30 02:23:47,182 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 02:23:47,182 INFO L481 AbstractCegarLoop]: Abstraction has 180 states and 200 transitions. [2020-11-30 02:23:47,182 INFO L482 AbstractCegarLoop]: Interpolant automaton has 17 states. [2020-11-30 02:23:47,182 INFO L276 IsEmpty]: Start isEmpty. Operand 180 states and 200 transitions. [2020-11-30 02:23:47,183 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2020-11-30 02:23:47,183 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 02:23:47,183 INFO L422 BasicCegarLoop]: trace histogram [15, 14, 14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 02:23:47,386 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable77,7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-30 02:23:47,386 INFO L429 AbstractCegarLoop]: === Iteration 19 === [ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr34ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr36ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr44ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr38ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr42ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr40ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr45ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr35ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr43ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr41ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr39ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr37ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-11-30 02:23:47,387 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 02:23:47,387 INFO L82 PathProgramCache]: Analyzing trace with hash 775199026, now seen corresponding path program 3 times [2020-11-30 02:23:47,387 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-30 02:23:47,387 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [840183272] [2020-11-30 02:23:47,387 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 02:23:47,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 02:23:47,637 INFO L134 CoverageAnalysis]: Checked inductivity of 483 backedges. 0 proven. 483 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 02:23:47,638 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [840183272] [2020-11-30 02:23:47,638 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1165100472] [2020-11-30 02:23:47,638 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b54ffa6b-9abc-4389-b4f9-4eeec7ff6d0f/bin/utaipan/z3 Starting monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-30 02:23:47,695 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2020-11-30 02:23:47,695 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-11-30 02:23:47,696 INFO L263 TraceCheckSpWp]: Trace formula consists of 207 conjuncts, 17 conjunts are in the unsatisfiable core [2020-11-30 02:23:47,698 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 02:23:47,740 INFO L134 CoverageAnalysis]: Checked inductivity of 483 backedges. 0 proven. 483 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 02:23:47,741 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-30 02:23:48,195 INFO L134 CoverageAnalysis]: Checked inductivity of 483 backedges. 0 proven. 483 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 02:23:48,195 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1055997873] [2020-11-30 02:23:48,197 INFO L159 IcfgInterpreter]: Started Sifa with 20 locations of interest [2020-11-30 02:23:48,197 INFO L166 IcfgInterpreter]: Building call graph [2020-11-30 02:23:48,197 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2020-11-30 02:23:48,197 INFO L176 IcfgInterpreter]: Starting interpretation [2020-11-30 02:23:48,197 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2020-11-30 02:23:48,505 INFO L180 IcfgInterpreter]: Interpretation finished [2020-11-30 02:23:48,663 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 49 [2020-11-30 02:23:48,940 WARN L193 SmtUtils]: Spent 252.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 66 [2020-11-30 02:23:49,264 WARN L193 SmtUtils]: Spent 283.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 68 [2020-11-30 02:23:49,560 WARN L193 SmtUtils]: Spent 254.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 68 [2020-11-30 02:23:49,750 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 41 [2020-11-30 02:23:49,909 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 43 [2020-11-30 02:23:50,187 WARN L193 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 49 [2020-11-30 02:23:50,904 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 44 [2020-11-30 02:23:51,048 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 43 [2020-11-30 02:23:51,281 WARN L193 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 47 [2020-11-30 02:23:51,521 WARN L193 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 47 [2020-11-30 02:23:51,770 WARN L193 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 49 [2020-11-30 02:23:51,997 WARN L193 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 47 [2020-11-30 02:23:52,225 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-11-30 02:23:52,225 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2020-11-30 02:23:52,225 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 33 [2020-11-30 02:23:52,225 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1659059485] [2020-11-30 02:23:52,226 INFO L461 AbstractCegarLoop]: Interpolant automaton has 33 states [2020-11-30 02:23:52,226 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-30 02:23:52,227 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2020-11-30 02:23:52,227 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=692, Invalid=1378, Unknown=0, NotChecked=0, Total=2070 [2020-11-30 02:23:52,228 INFO L87 Difference]: Start difference. First operand 180 states and 200 transitions. Second operand 33 states. [2020-11-30 02:23:52,687 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 02:23:52,687 INFO L93 Difference]: Finished difference Result 489 states and 559 transitions. [2020-11-30 02:23:52,687 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2020-11-30 02:23:52,688 INFO L78 Accepts]: Start accepts. Automaton has 33 states. Word has length 86 [2020-11-30 02:23:52,688 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 02:23:52,690 INFO L225 Difference]: With dead ends: 489 [2020-11-30 02:23:52,690 INFO L226 Difference]: Without dead ends: 391 [2020-11-30 02:23:52,690 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 273 GetRequests, 212 SyntacticMatches, 17 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1616 ImplicationChecksByTransitivity, 4.3s TimeCoverageRelationStatistics Valid=692, Invalid=1378, Unknown=0, NotChecked=0, Total=2070 [2020-11-30 02:23:52,691 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 391 states. [2020-11-30 02:23:52,707 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 391 to 260. [2020-11-30 02:23:52,708 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 260 states. [2020-11-30 02:23:52,709 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 260 states to 260 states and 296 transitions. [2020-11-30 02:23:52,709 INFO L78 Accepts]: Start accepts. Automaton has 260 states and 296 transitions. Word has length 86 [2020-11-30 02:23:52,709 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 02:23:52,709 INFO L481 AbstractCegarLoop]: Abstraction has 260 states and 296 transitions. [2020-11-30 02:23:52,710 INFO L482 AbstractCegarLoop]: Interpolant automaton has 33 states. [2020-11-30 02:23:52,710 INFO L276 IsEmpty]: Start isEmpty. Operand 260 states and 296 transitions. [2020-11-30 02:23:52,711 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2020-11-30 02:23:52,711 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 02:23:52,711 INFO L422 BasicCegarLoop]: trace histogram [14, 14, 14, 14, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 02:23:52,925 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable90,8 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-30 02:23:52,925 INFO L429 AbstractCegarLoop]: === Iteration 20 === [ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr34ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr36ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr44ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr38ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr42ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr40ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr45ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr35ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr43ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr41ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr39ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr37ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-11-30 02:23:52,926 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 02:23:52,926 INFO L82 PathProgramCache]: Analyzing trace with hash 1543231902, now seen corresponding path program 3 times [2020-11-30 02:23:52,926 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-30 02:23:52,926 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2065117630] [2020-11-30 02:23:52,926 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 02:23:52,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 02:23:53,385 INFO L134 CoverageAnalysis]: Checked inductivity of 455 backedges. 0 proven. 455 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 02:23:53,386 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2065117630] [2020-11-30 02:23:53,386 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1025845234] [2020-11-30 02:23:53,386 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b54ffa6b-9abc-4389-b4f9-4eeec7ff6d0f/bin/utaipan/z3 Starting monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-30 02:23:53,452 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2020-11-30 02:23:53,452 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-11-30 02:23:53,453 INFO L263 TraceCheckSpWp]: Trace formula consists of 210 conjuncts, 33 conjunts are in the unsatisfiable core [2020-11-30 02:23:53,456 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 02:23:54,180 INFO L134 CoverageAnalysis]: Checked inductivity of 455 backedges. 0 proven. 455 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 02:23:54,180 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-30 02:23:56,034 INFO L134 CoverageAnalysis]: Checked inductivity of 455 backedges. 0 proven. 455 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 02:23:56,035 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1558483625] [2020-11-30 02:23:56,036 INFO L159 IcfgInterpreter]: Started Sifa with 25 locations of interest [2020-11-30 02:23:56,036 INFO L166 IcfgInterpreter]: Building call graph [2020-11-30 02:23:56,037 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2020-11-30 02:23:56,037 INFO L176 IcfgInterpreter]: Starting interpretation [2020-11-30 02:23:56,037 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2020-11-30 02:23:56,395 INFO L180 IcfgInterpreter]: Interpretation finished [2020-11-30 02:23:56,694 WARN L193 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 47 [2020-11-30 02:23:57,332 WARN L193 SmtUtils]: Spent 338.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 66 [2020-11-30 02:23:57,885 WARN L193 SmtUtils]: Spent 330.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 68 [2020-11-30 02:23:58,425 WARN L193 SmtUtils]: Spent 315.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 68 [2020-11-30 02:23:58,889 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 41 [2020-11-30 02:23:59,120 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 43 [2020-11-30 02:23:59,655 WARN L193 SmtUtils]: Spent 198.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 49 [2020-11-30 02:24:01,949 WARN L193 SmtUtils]: Spent 270.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 53 [2020-11-30 02:24:02,233 WARN L193 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 45 [2020-11-30 02:24:03,152 WARN L193 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 48 [2020-11-30 02:24:03,810 WARN L193 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 45 [2020-11-30 02:24:04,239 WARN L193 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 45 [2020-11-30 02:24:04,693 WARN L193 SmtUtils]: Spent 193.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 47 [2020-11-30 02:24:05,146 WARN L193 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 45 [2020-11-30 02:24:05,684 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-11-30 02:24:05,685 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2020-11-30 02:24:05,685 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 33 [2020-11-30 02:24:05,685 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1325853489] [2020-11-30 02:24:05,686 INFO L461 AbstractCegarLoop]: Interpolant automaton has 33 states [2020-11-30 02:24:05,686 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-30 02:24:05,686 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2020-11-30 02:24:05,687 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=397, Invalid=1859, Unknown=0, NotChecked=0, Total=2256 [2020-11-30 02:24:05,687 INFO L87 Difference]: Start difference. First operand 260 states and 296 transitions. Second operand 33 states. [2020-11-30 02:24:30,117 WARN L193 SmtUtils]: Spent 12.67 s on a formula simplification. DAG size of input: 38 DAG size of output: 14 [2020-11-30 02:24:47,940 WARN L193 SmtUtils]: Spent 4.30 s on a formula simplification. DAG size of input: 34 DAG size of output: 10 [2020-11-30 02:25:18,953 WARN L193 SmtUtils]: Spent 21.01 s on a formula simplification. DAG size of input: 30 DAG size of output: 10 [2020-11-30 02:25:42,982 WARN L193 SmtUtils]: Spent 8.55 s on a formula simplification. DAG size of input: 26 DAG size of output: 14 [2020-11-30 02:25:58,732 WARN L193 SmtUtils]: Spent 6.49 s on a formula simplification. DAG size of input: 22 DAG size of output: 10 [2020-11-30 02:26:21,096 WARN L193 SmtUtils]: Spent 4.22 s on a formula simplification. DAG size of input: 18 DAG size of output: 14 [2020-11-30 02:27:04,395 WARN L193 SmtUtils]: Spent 18.47 s on a formula simplification. DAG size of input: 62 DAG size of output: 18 [2020-11-30 02:27:05,293 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 02:27:05,293 INFO L93 Difference]: Finished difference Result 433 states and 487 transitions. [2020-11-30 02:27:05,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2020-11-30 02:27:05,296 INFO L78 Accepts]: Start accepts. Automaton has 33 states. Word has length 89 [2020-11-30 02:27:05,296 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 02:27:05,298 INFO L225 Difference]: With dead ends: 433 [2020-11-30 02:27:05,299 INFO L226 Difference]: Without dead ends: 330 [2020-11-30 02:27:05,300 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 292 GetRequests, 203 SyntacticMatches, 33 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1145 ImplicationChecksByTransitivity, 185.2s TimeCoverageRelationStatistics Valid=698, Invalid=2568, Unknown=40, NotChecked=0, Total=3306 [2020-11-30 02:27:05,301 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 330 states. [2020-11-30 02:27:05,317 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 330 to 260. [2020-11-30 02:27:05,318 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 260 states. [2020-11-30 02:27:05,319 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 260 states to 260 states and 286 transitions. [2020-11-30 02:27:05,319 INFO L78 Accepts]: Start accepts. Automaton has 260 states and 286 transitions. Word has length 89 [2020-11-30 02:27:05,319 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 02:27:05,320 INFO L481 AbstractCegarLoop]: Abstraction has 260 states and 286 transitions. [2020-11-30 02:27:05,320 INFO L482 AbstractCegarLoop]: Interpolant automaton has 33 states. [2020-11-30 02:27:05,320 INFO L276 IsEmpty]: Start isEmpty. Operand 260 states and 286 transitions. [2020-11-30 02:27:05,321 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2020-11-30 02:27:05,322 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 02:27:05,322 INFO L422 BasicCegarLoop]: trace histogram [24, 24, 24, 24, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 02:27:05,545 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable103 [2020-11-30 02:27:05,546 INFO L429 AbstractCegarLoop]: === Iteration 21 === [ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr34ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr36ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr44ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr38ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr42ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr40ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr45ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr35ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr43ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr41ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr39ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr37ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-11-30 02:27:05,546 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 02:27:05,546 INFO L82 PathProgramCache]: Analyzing trace with hash 609982910, now seen corresponding path program 4 times [2020-11-30 02:27:05,546 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-30 02:27:05,546 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1556654973] [2020-11-30 02:27:05,546 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 02:27:05,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 02:27:05,584 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 02:27:05,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 02:27:05,634 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 02:27:05,685 INFO L173 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2020-11-30 02:27:05,686 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-30 02:27:05,686 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable116 [2020-11-30 02:27:05,795 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.11 02:27:05 BoogieIcfgContainer [2020-11-30 02:27:05,795 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-30 02:27:05,795 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-30 02:27:05,795 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-30 02:27:05,796 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-30 02:27:05,796 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 02:21:58" (3/4) ... [2020-11-30 02:27:05,799 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-11-30 02:27:05,799 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-30 02:27:05,800 INFO L168 Benchmark]: Toolchain (without parser) took 308983.39 ms. Allocated memory was 142.6 MB in the beginning and 318.8 MB in the end (delta: 176.2 MB). Free memory was 114.5 MB in the beginning and 168.7 MB in the end (delta: -54.2 MB). Peak memory consumption was 120.6 MB. Max. memory is 16.1 GB. [2020-11-30 02:27:05,801 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 88.1 MB. Free memory is still 48.1 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 02:27:05,801 INFO L168 Benchmark]: CACSL2BoogieTranslator took 353.85 ms. Allocated memory is still 142.6 MB. Free memory was 114.1 MB in the beginning and 117.3 MB in the end (delta: -3.2 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-30 02:27:05,801 INFO L168 Benchmark]: Boogie Procedure Inliner took 51.49 ms. Allocated memory is still 142.6 MB. Free memory was 117.3 MB in the beginning and 114.9 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-30 02:27:05,802 INFO L168 Benchmark]: Boogie Preprocessor took 40.69 ms. Allocated memory is still 142.6 MB. Free memory was 114.9 MB in the beginning and 113.2 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-30 02:27:05,802 INFO L168 Benchmark]: RCFGBuilder took 1152.84 ms. Allocated memory is still 142.6 MB. Free memory was 113.2 MB in the beginning and 96.1 MB in the end (delta: 17.0 MB). Peak memory consumption was 40.3 MB. Max. memory is 16.1 GB. [2020-11-30 02:27:05,802 INFO L168 Benchmark]: TraceAbstraction took 307372.29 ms. Allocated memory was 142.6 MB in the beginning and 318.8 MB in the end (delta: 176.2 MB). Free memory was 95.5 MB in the beginning and 169.7 MB in the end (delta: -74.2 MB). Peak memory consumption was 102.8 MB. Max. memory is 16.1 GB. [2020-11-30 02:27:05,803 INFO L168 Benchmark]: Witness Printer took 4.34 ms. Allocated memory is still 318.8 MB. Free memory was 169.7 MB in the beginning and 168.7 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 02:27:05,805 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 88.1 MB. Free memory is still 48.1 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 353.85 ms. Allocated memory is still 142.6 MB. Free memory was 114.1 MB in the beginning and 117.3 MB in the end (delta: -3.2 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 51.49 ms. Allocated memory is still 142.6 MB. Free memory was 117.3 MB in the beginning and 114.9 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 40.69 ms. Allocated memory is still 142.6 MB. Free memory was 114.9 MB in the beginning and 113.2 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1152.84 ms. Allocated memory is still 142.6 MB. Free memory was 113.2 MB in the beginning and 96.1 MB in the end (delta: 17.0 MB). Peak memory consumption was 40.3 MB. Max. memory is 16.1 GB. * TraceAbstraction took 307372.29 ms. Allocated memory was 142.6 MB in the beginning and 318.8 MB in the end (delta: 176.2 MB). Free memory was 95.5 MB in the beginning and 169.7 MB in the end (delta: -74.2 MB). Peak memory consumption was 102.8 MB. Max. memory is 16.1 GB. * Witness Printer took 4.34 ms. Allocated memory is still 318.8 MB. Free memory was 169.7 MB in the beginning and 168.7 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 69]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of bitwiseOr at line 69, overapproximation of bitwiseAnd at line 68. Possible FailurePath: [L213] unsigned int a ; [L214] unsigned int ma = __VERIFIER_nondet_uint(); [L215] signed char ea = __VERIFIER_nondet_char(); [L216] unsigned int b ; [L217] unsigned int mb = __VERIFIER_nondet_uint(); [L218] signed char eb = __VERIFIER_nondet_char(); [L219] unsigned int r_mul ; [L220] unsigned int zero ; [L221] unsigned int one ; [L222] int sb ; [L223] int tmp ; [L224] int tmp___0 ; [L225] int tmp___1 ; [L226] int __retres16 ; [L17] unsigned int res ; [L18] unsigned int __retres4 ; [L21] COND TRUE ! m [L22] __retres4 = 0U [L72] return (__retres4); [L230] zero = base2flt(0, 0) [L17] unsigned int res ; [L18] unsigned int __retres4 ; [L21] COND FALSE !(! m) [L27] COND TRUE m < 1U << 24U [L29] COND TRUE 1 [L31] COND FALSE !(e <= -128) [L37] EXPR e - 1 [L37] e = e - 1 [L38] m = m << 1U [L39] COND TRUE m < 1U << 24U [L29] COND TRUE 1 [L31] COND FALSE !(e <= -128) [L37] EXPR e - 1 [L37] e = e - 1 [L38] m = m << 1U [L39] COND TRUE m < 1U << 24U [L29] COND TRUE 1 [L31] COND FALSE !(e <= -128) [L37] EXPR e - 1 [L37] e = e - 1 [L38] m = m << 1U [L39] COND TRUE m < 1U << 24U [L29] COND TRUE 1 [L31] COND FALSE !(e <= -128) [L37] EXPR e - 1 [L37] e = e - 1 [L38] m = m << 1U [L39] COND TRUE m < 1U << 24U [L29] COND TRUE 1 [L31] COND FALSE !(e <= -128) [L37] EXPR e - 1 [L37] e = e - 1 [L38] m = m << 1U [L39] COND TRUE m < 1U << 24U [L29] COND TRUE 1 [L31] COND FALSE !(e <= -128) [L37] EXPR e - 1 [L37] e = e - 1 [L38] m = m << 1U [L39] COND TRUE m < 1U << 24U [L29] COND TRUE 1 [L31] COND FALSE !(e <= -128) [L37] EXPR e - 1 [L37] e = e - 1 [L38] m = m << 1U [L39] COND TRUE m < 1U << 24U [L29] COND TRUE 1 [L31] COND FALSE !(e <= -128) [L37] EXPR e - 1 [L37] e = e - 1 [L38] m = m << 1U [L39] COND TRUE m < 1U << 24U [L29] COND TRUE 1 [L31] COND FALSE !(e <= -128) [L37] EXPR e - 1 [L37] e = e - 1 [L38] m = m << 1U [L39] COND TRUE m < 1U << 24U [L29] COND TRUE 1 [L31] COND FALSE !(e <= -128) [L37] EXPR e - 1 [L37] e = e - 1 [L38] m = m << 1U [L39] COND TRUE m < 1U << 24U [L29] COND TRUE 1 [L31] COND FALSE !(e <= -128) [L37] EXPR e - 1 [L37] e = e - 1 [L38] m = m << 1U [L39] COND TRUE m < 1U << 24U [L29] COND TRUE 1 [L31] COND FALSE !(e <= -128) [L37] EXPR e - 1 [L37] e = e - 1 [L38] m = m << 1U [L39] COND TRUE m < 1U << 24U [L29] COND TRUE 1 [L31] COND FALSE !(e <= -128) [L37] EXPR e - 1 [L37] e = e - 1 [L38] m = m << 1U [L39] COND TRUE m < 1U << 24U [L29] COND TRUE 1 [L31] COND FALSE !(e <= -128) [L37] EXPR e - 1 [L37] e = e - 1 [L38] m = m << 1U [L39] COND TRUE m < 1U << 24U [L29] COND TRUE 1 [L31] COND FALSE !(e <= -128) [L37] EXPR e - 1 [L37] e = e - 1 [L38] m = m << 1U [L39] COND TRUE m < 1U << 24U [L29] COND TRUE 1 [L31] COND FALSE !(e <= -128) [L37] EXPR e - 1 [L37] e = e - 1 [L38] m = m << 1U [L39] COND TRUE m < 1U << 24U [L29] COND TRUE 1 [L31] COND FALSE !(e <= -128) [L37] EXPR e - 1 [L37] e = e - 1 [L38] m = m << 1U [L39] COND TRUE m < 1U << 24U [L29] COND TRUE 1 [L31] COND FALSE !(e <= -128) [L37] EXPR e - 1 [L37] e = e - 1 [L38] m = m << 1U [L39] COND TRUE m < 1U << 24U [L29] COND TRUE 1 [L31] COND FALSE !(e <= -128) [L37] EXPR e - 1 [L37] e = e - 1 [L38] m = m << 1U [L39] COND TRUE m < 1U << 24U [L29] COND TRUE 1 [L31] COND FALSE !(e <= -128) [L37] EXPR e - 1 [L37] e = e - 1 [L38] m = m << 1U [L39] COND TRUE m < 1U << 24U [L29] COND TRUE 1 [L31] COND FALSE !(e <= -128) [L37] EXPR e - 1 [L37] e = e - 1 [L38] m = m << 1U [L39] COND TRUE m < 1U << 24U [L29] COND TRUE 1 [L31] COND FALSE !(e <= -128) [L37] EXPR e - 1 [L37] e = e - 1 [L38] m = m << 1U [L39] COND TRUE m < 1U << 24U [L29] COND TRUE 1 [L31] COND FALSE !(e <= -128) [L37] EXPR e - 1 [L37] e = e - 1 [L38] m = m << 1U [L39] COND TRUE m < 1U << 24U [L29] COND TRUE 1 [L31] COND FALSE !(e <= -128) [L37] EXPR e - 1 [L37] e = e - 1 [L38] m = m << 1U [L39] COND FALSE !(m < 1U << 24U) [L68] m = m & ~ (1U << 24U) [L69] EXPR e + 128 [L69] EXPR (e + 128) << 24U [L69] res = m | (unsigned int )((e + 128) << 24U) [L70] __retres4 = res [L72] return (__retres4); [L231] one = base2flt(1, 0) [L17] unsigned int res ; [L18] unsigned int __retres4 ; [L21] COND FALSE !(! m) [L27] COND FALSE !(m < 1U << 24U) [L49] COND TRUE 1 [L51] COND FALSE !(m >= 1U << 25U) [L68] m = m & ~ (1U << 24U) [L69] EXPR e + 128 [L69] (e + 128) << 24U - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 142 locations, 46 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 307.2s, OverallIterations: 21, TraceHistogramMax: 24, AutomataDifference: 261.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 2548 SDtfs, 2899 SDslu, 6475 SDs, 0 SdLazy, 4070 SolverSat, 366 SolverUnsat, 4 SolverUnknown, 0 SolverNotchecked, 13.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1245 GetRequests, 871 SyntacticMatches, 102 SemanticMatches, 272 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5034 ImplicationChecksByTransitivity, 283.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=260occurred in iteration=19, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 20 MinimizatonAttempts, 916 StatesRemovedByMinimization, 18 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 5.9s InterpolantComputationTime, 1067 NumberOfCodeBlocks, 1067 NumberOfCodeBlocksAsserted, 42 NumberOfCheckSat, 1270 ConstructedInterpolants, 0 QuantifiedInterpolants, 318757 SizeOfPredicates, 16 NumberOfNonLiveVariables, 1138 ConjunctsInSsa, 104 ConjunctsInUnsatCore, 36 InterpolantComputations, 12 PerfectInterpolantSequences, 23/3407 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]: 920, ICFG_INTERPRETER_ENTERED_PROCEDURES: 2, DAG_INTERPRETER_EARLY_EXIT_QUERIES_NONTRIVIAL: 38, DAG_INTERPRETER_EARLY_EXITS: 2, TOOLS_POST_APPLICATIONS: 67, TOOLS_POST_TIME[ms]: 375, 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: 67, TOOLS_QUANTIFIERELIM_TIME[ms]: 353, TOOLS_QUANTIFIERELIM_MAX_TIME[ms]: 210, FLUID_QUERY_TIME[ms]: 6, FLUID_QUERIES: 120, 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: 4, DOMAIN_WIDEN_TIME[ms]: 356, DOMAIN_ISSUBSETEQ_APPLICATIONS: 6, DOMAIN_ISSUBSETEQ_TIME[ms]: 38, DOMAIN_ISBOTTOM_APPLICATIONS: 38, DOMAIN_ISBOTTOM_TIME[ms]: 76, LOOP_SUMMARIZER_APPLICATIONS: 2, LOOP_SUMMARIZER_CACHE_MISSES: 2, LOOP_SUMMARIZER_OVERALL_TIME[ms]: 441, LOOP_SUMMARIZER_NEW_COMPUTATION_TIME[ms]: 440, LOOP_SUMMARIZER_FIXPOINT_ITERATIONS: 6, 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]: 3, PATH_EXPR_TIME[ms]: 4, REGEX_TO_DAG_TIME[ms]: 5, DAG_COMPRESSION_TIME[ms]: 26, DAG_COMPRESSION_PROCESSED_NODES: 520, DAG_COMPRESSION_RETAINED_NODES: 106, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request...