./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/bitvector/soft_float_4-2.c.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 7b2dab56 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ca0983b-302c-4264-b1df-5eef430084b3/bin/utaipan-WLngWcDbfI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ca0983b-302c-4264-b1df-5eef430084b3/bin/utaipan-WLngWcDbfI/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ca0983b-302c-4264-b1df-5eef430084b3/bin/utaipan-WLngWcDbfI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ca0983b-302c-4264-b1df-5eef430084b3/bin/utaipan-WLngWcDbfI/config/TaipanReach.xml -i ../../sv-benchmarks/c/bitvector/soft_float_4-2.c.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ca0983b-302c-4264-b1df-5eef430084b3/bin/utaipan-WLngWcDbfI/config/svcomp-Overflow-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ca0983b-302c-4264-b1df-5eef430084b3/bin/utaipan-WLngWcDbfI --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 16cd8401275d965058442f4c39d1da335e2aa9f4 ...................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Using bit-precise analysis No suitable file found in config dir /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ca0983b-302c-4264-b1df-5eef430084b3/bin/utaipan-WLngWcDbfI/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 0.2.0-7b2dab5 [2021-10-11 02:33:10,194 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-11 02:33:10,195 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-11 02:33:10,244 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-11 02:33:10,244 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-11 02:33:10,250 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-11 02:33:10,253 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-11 02:33:10,258 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-11 02:33:10,261 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-11 02:33:10,269 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-11 02:33:10,270 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-11 02:33:10,271 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-11 02:33:10,272 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-11 02:33:10,275 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-11 02:33:10,277 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-11 02:33:10,278 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-11 02:33:10,279 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-11 02:33:10,280 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-11 02:33:10,282 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-11 02:33:10,285 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-11 02:33:10,287 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-11 02:33:10,288 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-11 02:33:10,290 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-11 02:33:10,291 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-11 02:33:10,294 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-11 02:33:10,294 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-11 02:33:10,295 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-11 02:33:10,296 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-11 02:33:10,297 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-11 02:33:10,298 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-11 02:33:10,298 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-11 02:33:10,299 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-11 02:33:10,300 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-11 02:33:10,301 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-11 02:33:10,302 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-11 02:33:10,303 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-11 02:33:10,304 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-11 02:33:10,304 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-11 02:33:10,305 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-11 02:33:10,306 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-11 02:33:10,307 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-11 02:33:10,308 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ca0983b-302c-4264-b1df-5eef430084b3/bin/utaipan-WLngWcDbfI/config/svcomp-Overflow-32bit-Taipan_Default.epf [2021-10-11 02:33:10,348 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-11 02:33:10,349 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-11 02:33:10,350 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-11 02:33:10,351 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-11 02:33:10,351 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-11 02:33:10,351 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-11 02:33:10,351 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-10-11 02:33:10,351 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-11 02:33:10,352 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-11 02:33:10,352 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-10-11 02:33:10,353 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-10-11 02:33:10,353 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-11 02:33:10,354 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-10-11 02:33:10,354 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-10-11 02:33:10,354 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-10-11 02:33:10,355 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-11 02:33:10,355 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-11 02:33:10,355 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-11 02:33:10,355 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-11 02:33:10,356 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-11 02:33:10,356 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-11 02:33:10,356 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-11 02:33:10,356 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-11 02:33:10,357 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-11 02:33:10,357 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2021-10-11 02:33:10,357 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-11 02:33:10,357 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-11 02:33:10,358 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-11 02:33:10,358 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-11 02:33:10,358 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-11 02:33:10,358 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-11 02:33:10,358 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-11 02:33:10,359 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-11 02:33:10,359 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-11 02:33:10,359 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-11 02:33:10,360 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-10-11 02:33:10,360 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-11 02:33:10,360 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-11 02:33:10,360 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-11 02:33:10,361 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-11 02:33:10,361 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_worker_vcloud-master_on_vcloud-master/run_dir_1ca0983b-302c-4264-b1df-5eef430084b3/bin/utaipan-WLngWcDbfI/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ca0983b-302c-4264-b1df-5eef430084b3/bin/utaipan-WLngWcDbfI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 16cd8401275d965058442f4c39d1da335e2aa9f4 [2021-10-11 02:33:10,651 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-11 02:33:10,676 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-11 02:33:10,681 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-11 02:33:10,683 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-11 02:33:10,684 INFO L275 PluginConnector]: CDTParser initialized [2021-10-11 02:33:10,685 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ca0983b-302c-4264-b1df-5eef430084b3/bin/utaipan-WLngWcDbfI/../../sv-benchmarks/c/bitvector/soft_float_4-2.c.cil.c [2021-10-11 02:33:10,759 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ca0983b-302c-4264-b1df-5eef430084b3/bin/utaipan-WLngWcDbfI/data/253faea25/646073d242b74bec81298daf5d4a803f/FLAG5c63912cc [2021-10-11 02:33:11,199 INFO L306 CDTParser]: Found 1 translation units. [2021-10-11 02:33:11,200 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ca0983b-302c-4264-b1df-5eef430084b3/sv-benchmarks/c/bitvector/soft_float_4-2.c.cil.c [2021-10-11 02:33:11,207 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ca0983b-302c-4264-b1df-5eef430084b3/bin/utaipan-WLngWcDbfI/data/253faea25/646073d242b74bec81298daf5d4a803f/FLAG5c63912cc [2021-10-11 02:33:11,568 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ca0983b-302c-4264-b1df-5eef430084b3/bin/utaipan-WLngWcDbfI/data/253faea25/646073d242b74bec81298daf5d4a803f [2021-10-11 02:33:11,570 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-11 02:33:11,572 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-11 02:33:11,581 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-11 02:33:11,582 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-11 02:33:11,585 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-11 02:33:11,586 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 02:33:11" (1/1) ... [2021-10-11 02:33:11,588 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@492b6c25 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:33:11, skipping insertion in model container [2021-10-11 02:33:11,588 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 02:33:11" (1/1) ... [2021-10-11 02:33:11,596 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-11 02:33:11,645 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-11 02:33:11,801 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ca0983b-302c-4264-b1df-5eef430084b3/sv-benchmarks/c/bitvector/soft_float_4-2.c.cil.c[511,524] [2021-10-11 02:33:11,852 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 02:33:11,862 INFO L203 MainTranslator]: Completed pre-run [2021-10-11 02:33:11,875 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ca0983b-302c-4264-b1df-5eef430084b3/sv-benchmarks/c/bitvector/soft_float_4-2.c.cil.c[511,524] [2021-10-11 02:33:11,906 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 02:33:11,922 INFO L208 MainTranslator]: Completed translation [2021-10-11 02:33:11,922 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:33:11 WrapperNode [2021-10-11 02:33:11,923 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-11 02:33:11,924 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-11 02:33:11,924 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-11 02:33:11,924 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-11 02:33:11,932 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:33:11" (1/1) ... [2021-10-11 02:33:11,943 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:33:11" (1/1) ... [2021-10-11 02:33:11,985 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-11 02:33:11,986 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-11 02:33:11,986 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-11 02:33:11,986 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-11 02:33:11,995 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:33:11" (1/1) ... [2021-10-11 02:33:11,996 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:33:11" (1/1) ... [2021-10-11 02:33:12,001 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:33:11" (1/1) ... [2021-10-11 02:33:12,002 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:33:11" (1/1) ... [2021-10-11 02:33:12,010 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:33:11" (1/1) ... [2021-10-11 02:33:12,017 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:33:11" (1/1) ... [2021-10-11 02:33:12,020 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:33:11" (1/1) ... [2021-10-11 02:33:12,025 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-11 02:33:12,026 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-11 02:33:12,026 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-11 02:33:12,026 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-11 02:33:12,027 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:33:11" (1/1) ... No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ca0983b-302c-4264-b1df-5eef430084b3/bin/utaipan-WLngWcDbfI/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 [2021-10-11 02:33:12,125 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-11 02:33:12,126 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-11 02:33:12,126 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-11 02:33:12,126 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-11 02:33:13,124 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-11 02:33:13,126 INFO L299 CfgBuilder]: Removed 34 assume(true) statements. [2021-10-11 02:33:13,129 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:33:13 BoogieIcfgContainer [2021-10-11 02:33:13,130 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-11 02:33:13,132 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-11 02:33:13,132 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-11 02:33:13,136 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-11 02:33:13,136 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 02:33:11" (1/3) ... [2021-10-11 02:33:13,137 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2a4374d5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 02:33:13, skipping insertion in model container [2021-10-11 02:33:13,138 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:33:11" (2/3) ... [2021-10-11 02:33:13,138 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2a4374d5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 02:33:13, skipping insertion in model container [2021-10-11 02:33:13,138 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:33:13" (3/3) ... [2021-10-11 02:33:13,141 INFO L111 eAbstractionObserver]: Analyzing ICFG soft_float_4-2.c.cil.c [2021-10-11 02:33:13,160 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-11 02:33:13,164 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 48 error locations. [2021-10-11 02:33:13,176 INFO L253 AbstractCegarLoop]: Starting to check reachability of 48 error locations. [2021-10-11 02:33:13,215 INFO L377 AbstractCegarLoop]: Interprodecural is true [2021-10-11 02:33:13,215 INFO L378 AbstractCegarLoop]: Hoare is true [2021-10-11 02:33:13,216 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-10-11 02:33:13,216 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-11 02:33:13,216 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-11 02:33:13,216 INFO L382 AbstractCegarLoop]: Difference is false [2021-10-11 02:33:13,216 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-11 02:33:13,216 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-10-11 02:33:13,239 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states. [2021-10-11 02:33:13,244 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-10-11 02:33:13,245 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:33:13,245 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2021-10-11 02:33:13,246 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.startErr46ASSERT_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.startErr47ASSERT_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]=== [2021-10-11 02:33:13,253 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:33:13,254 INFO L82 PathProgramCache]: Analyzing trace with hash 378489815, now seen corresponding path program 1 times [2021-10-11 02:33:13,263 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:33:13,264 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [179236841] [2021-10-11 02:33:13,264 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:33:13,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:33:13,410 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:33:13,410 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [179236841] [2021-10-11 02:33:13,411 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:33:13,411 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-11 02:33:13,412 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1352510797] [2021-10-11 02:33:13,416 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2021-10-11 02:33:13,416 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-11 02:33:13,428 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-11 02:33:13,429 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-11 02:33:13,431 INFO L87 Difference]: Start difference. First operand 140 states. Second operand 2 states. [2021-10-11 02:33:13,460 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:33:13,462 INFO L93 Difference]: Finished difference Result 259 states and 317 transitions. [2021-10-11 02:33:13,463 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-11 02:33:13,464 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 6 [2021-10-11 02:33:13,465 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:33:13,487 INFO L225 Difference]: With dead ends: 259 [2021-10-11 02:33:13,490 INFO L226 Difference]: Without dead ends: 134 [2021-10-11 02:33:13,495 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 [2021-10-11 02:33:13,514 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 134 states. [2021-10-11 02:33:13,562 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 134 to 134. [2021-10-11 02:33:13,564 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 134 states. [2021-10-11 02:33:13,573 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 134 states and 156 transitions. [2021-10-11 02:33:13,576 INFO L78 Accepts]: Start accepts. Automaton has 134 states and 156 transitions. Word has length 6 [2021-10-11 02:33:13,577 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:33:13,577 INFO L481 AbstractCegarLoop]: Abstraction has 134 states and 156 transitions. [2021-10-11 02:33:13,577 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2021-10-11 02:33:13,577 INFO L276 IsEmpty]: Start isEmpty. Operand 134 states and 156 transitions. [2021-10-11 02:33:13,579 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-10-11 02:33:13,579 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:33:13,579 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2021-10-11 02:33:13,579 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-11 02:33:13,580 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.startErr46ASSERT_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.startErr47ASSERT_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]=== [2021-10-11 02:33:13,583 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:33:13,583 INFO L82 PathProgramCache]: Analyzing trace with hash 377176642, now seen corresponding path program 1 times [2021-10-11 02:33:13,583 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:33:13,584 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [588852148] [2021-10-11 02:33:13,584 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:33:13,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:33:13,636 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:33:13,637 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [588852148] [2021-10-11 02:33:13,637 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:33:13,637 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-10-11 02:33:13,638 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [804402347] [2021-10-11 02:33:13,639 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-10-11 02:33:13,639 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-11 02:33:13,640 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-11 02:33:13,640 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 02:33:13,640 INFO L87 Difference]: Start difference. First operand 134 states and 156 transitions. Second operand 3 states. [2021-10-11 02:33:13,856 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:33:13,856 INFO L93 Difference]: Finished difference Result 265 states and 306 transitions. [2021-10-11 02:33:13,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-11 02:33:13,857 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 6 [2021-10-11 02:33:13,857 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:33:13,862 INFO L225 Difference]: With dead ends: 265 [2021-10-11 02:33:13,863 INFO L226 Difference]: Without dead ends: 149 [2021-10-11 02:33:13,866 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 [2021-10-11 02:33:13,868 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 149 states. [2021-10-11 02:33:13,889 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 149 to 147. [2021-10-11 02:33:13,892 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 147 states. [2021-10-11 02:33:13,893 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 147 states to 147 states and 170 transitions. [2021-10-11 02:33:13,893 INFO L78 Accepts]: Start accepts. Automaton has 147 states and 170 transitions. Word has length 6 [2021-10-11 02:33:13,893 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:33:13,894 INFO L481 AbstractCegarLoop]: Abstraction has 147 states and 170 transitions. [2021-10-11 02:33:13,894 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-10-11 02:33:13,894 INFO L276 IsEmpty]: Start isEmpty. Operand 147 states and 170 transitions. [2021-10-11 02:33:13,895 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-10-11 02:33:13,895 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:33:13,896 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:33:13,896 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-11 02:33:13,896 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.startErr46ASSERT_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.startErr47ASSERT_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]=== [2021-10-11 02:33:13,897 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:33:13,898 INFO L82 PathProgramCache]: Analyzing trace with hash -624648321, now seen corresponding path program 1 times [2021-10-11 02:33:13,899 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:33:13,902 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1577543685] [2021-10-11 02:33:13,902 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:33:13,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:33:14,000 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:33:14,000 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1577543685] [2021-10-11 02:33:14,001 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:33:14,001 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-11 02:33:14,002 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [40476342] [2021-10-11 02:33:14,002 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-10-11 02:33:14,002 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-11 02:33:14,003 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-11 02:33:14,007 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-11 02:33:14,007 INFO L87 Difference]: Start difference. First operand 147 states and 170 transitions. Second operand 4 states. [2021-10-11 02:33:14,165 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:33:14,165 INFO L93 Difference]: Finished difference Result 220 states and 251 transitions. [2021-10-11 02:33:14,166 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-11 02:33:14,166 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 8 [2021-10-11 02:33:14,167 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:33:14,169 INFO L225 Difference]: With dead ends: 220 [2021-10-11 02:33:14,169 INFO L226 Difference]: Without dead ends: 213 [2021-10-11 02:33:14,170 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 [2021-10-11 02:33:14,172 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 213 states. [2021-10-11 02:33:14,194 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 213 to 148. [2021-10-11 02:33:14,194 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 148 states. [2021-10-11 02:33:14,195 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 148 states and 172 transitions. [2021-10-11 02:33:14,196 INFO L78 Accepts]: Start accepts. Automaton has 148 states and 172 transitions. Word has length 8 [2021-10-11 02:33:14,196 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:33:14,196 INFO L481 AbstractCegarLoop]: Abstraction has 148 states and 172 transitions. [2021-10-11 02:33:14,196 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-10-11 02:33:14,197 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 172 transitions. [2021-10-11 02:33:14,198 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-10-11 02:33:14,198 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:33:14,198 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:33:14,199 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-10-11 02:33:14,199 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.startErr46ASSERT_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.startErr47ASSERT_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]=== [2021-10-11 02:33:14,200 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:33:14,200 INFO L82 PathProgramCache]: Analyzing trace with hash 2110738667, now seen corresponding path program 1 times [2021-10-11 02:33:14,200 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:33:14,201 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1858714230] [2021-10-11 02:33:14,201 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:33:14,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:33:14,264 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:33:14,265 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1858714230] [2021-10-11 02:33:14,265 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:33:14,265 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-11 02:33:14,265 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1443169539] [2021-10-11 02:33:14,266 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-10-11 02:33:14,266 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-11 02:33:14,266 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-11 02:33:14,267 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 02:33:14,267 INFO L87 Difference]: Start difference. First operand 148 states and 172 transitions. Second operand 3 states. [2021-10-11 02:33:14,390 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:33:14,390 INFO L93 Difference]: Finished difference Result 211 states and 240 transitions. [2021-10-11 02:33:14,390 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-11 02:33:14,391 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2021-10-11 02:33:14,391 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:33:14,392 INFO L225 Difference]: With dead ends: 211 [2021-10-11 02:33:14,392 INFO L226 Difference]: Without dead ends: 205 [2021-10-11 02:33:14,394 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 [2021-10-11 02:33:14,395 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 205 states. [2021-10-11 02:33:14,413 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 205 to 143. [2021-10-11 02:33:14,413 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 143 states. [2021-10-11 02:33:14,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 143 states to 143 states and 168 transitions. [2021-10-11 02:33:14,414 INFO L78 Accepts]: Start accepts. Automaton has 143 states and 168 transitions. Word has length 9 [2021-10-11 02:33:14,414 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:33:14,415 INFO L481 AbstractCegarLoop]: Abstraction has 143 states and 168 transitions. [2021-10-11 02:33:14,415 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-10-11 02:33:14,415 INFO L276 IsEmpty]: Start isEmpty. Operand 143 states and 168 transitions. [2021-10-11 02:33:14,417 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-10-11 02:33:14,418 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:33:14,418 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:33:14,418 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-10-11 02:33:14,418 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.startErr46ASSERT_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.startErr47ASSERT_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]=== [2021-10-11 02:33:14,419 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:33:14,419 INFO L82 PathProgramCache]: Analyzing trace with hash -1716833415, now seen corresponding path program 1 times [2021-10-11 02:33:14,419 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:33:14,421 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [289059284] [2021-10-11 02:33:14,421 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:33:14,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:33:14,486 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:33:14,487 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [289059284] [2021-10-11 02:33:14,487 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:33:14,487 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-11 02:33:14,487 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [370928781] [2021-10-11 02:33:14,488 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-10-11 02:33:14,488 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-11 02:33:14,488 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-11 02:33:14,489 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 02:33:14,490 INFO L87 Difference]: Start difference. First operand 143 states and 168 transitions. Second operand 3 states. [2021-10-11 02:33:14,547 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:33:14,547 INFO L93 Difference]: Finished difference Result 250 states and 292 transitions. [2021-10-11 02:33:14,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-11 02:33:14,548 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2021-10-11 02:33:14,548 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:33:14,549 INFO L225 Difference]: With dead ends: 250 [2021-10-11 02:33:14,549 INFO L226 Difference]: Without dead ends: 109 [2021-10-11 02:33:14,553 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 [2021-10-11 02:33:14,553 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2021-10-11 02:33:14,557 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 109. [2021-10-11 02:33:14,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 109 states. [2021-10-11 02:33:14,558 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 126 transitions. [2021-10-11 02:33:14,558 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 126 transitions. Word has length 9 [2021-10-11 02:33:14,558 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:33:14,558 INFO L481 AbstractCegarLoop]: Abstraction has 109 states and 126 transitions. [2021-10-11 02:33:14,558 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-10-11 02:33:14,559 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 126 transitions. [2021-10-11 02:33:14,559 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-10-11 02:33:14,559 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:33:14,559 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:33:14,559 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-10-11 02:33:14,561 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.startErr46ASSERT_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.startErr47ASSERT_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]=== [2021-10-11 02:33:14,562 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:33:14,562 INFO L82 PathProgramCache]: Analyzing trace with hash 619464257, now seen corresponding path program 1 times [2021-10-11 02:33:14,562 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:33:14,562 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [754130790] [2021-10-11 02:33:14,562 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:33:14,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:33:14,747 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:33:14,748 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [754130790] [2021-10-11 02:33:14,748 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:33:14,748 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-11 02:33:14,749 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [20849956] [2021-10-11 02:33:14,749 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-10-11 02:33:14,749 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-11 02:33:14,750 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-11 02:33:14,750 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-10-11 02:33:14,751 INFO L87 Difference]: Start difference. First operand 109 states and 126 transitions. Second operand 6 states. [2021-10-11 02:33:14,856 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:33:14,856 INFO L93 Difference]: Finished difference Result 301 states and 336 transitions. [2021-10-11 02:33:14,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-11 02:33:14,857 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 10 [2021-10-11 02:33:14,857 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:33:14,859 INFO L225 Difference]: With dead ends: 301 [2021-10-11 02:33:14,859 INFO L226 Difference]: Without dead ends: 300 [2021-10-11 02:33:14,860 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-10-11 02:33:14,861 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 300 states. [2021-10-11 02:33:14,866 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 300 to 121. [2021-10-11 02:33:14,866 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 121 states. [2021-10-11 02:33:14,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 121 states and 144 transitions. [2021-10-11 02:33:14,867 INFO L78 Accepts]: Start accepts. Automaton has 121 states and 144 transitions. Word has length 10 [2021-10-11 02:33:14,872 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:33:14,873 INFO L481 AbstractCegarLoop]: Abstraction has 121 states and 144 transitions. [2021-10-11 02:33:14,873 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2021-10-11 02:33:14,873 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 144 transitions. [2021-10-11 02:33:14,877 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-10-11 02:33:14,877 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:33:14,877 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:33:14,878 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-10-11 02:33:14,878 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.startErr46ASSERT_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.startErr47ASSERT_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]=== [2021-10-11 02:33:14,879 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:33:14,879 INFO L82 PathProgramCache]: Analyzing trace with hash 612986831, now seen corresponding path program 1 times [2021-10-11 02:33:14,879 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:33:14,879 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2073133885] [2021-10-11 02:33:14,880 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:33:14,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:33:14,924 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:33:14,924 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2073133885] [2021-10-11 02:33:14,924 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:33:14,924 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-11 02:33:14,925 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1252266070] [2021-10-11 02:33:14,925 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-10-11 02:33:14,926 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-11 02:33:14,926 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-11 02:33:14,927 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-11 02:33:14,927 INFO L87 Difference]: Start difference. First operand 121 states and 144 transitions. Second operand 4 states. [2021-10-11 02:33:15,002 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:33:15,003 INFO L93 Difference]: Finished difference Result 188 states and 218 transitions. [2021-10-11 02:33:15,003 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-11 02:33:15,003 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 10 [2021-10-11 02:33:15,004 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:33:15,005 INFO L225 Difference]: With dead ends: 188 [2021-10-11 02:33:15,005 INFO L226 Difference]: Without dead ends: 186 [2021-10-11 02:33:15,006 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 [2021-10-11 02:33:15,007 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 186 states. [2021-10-11 02:33:15,011 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 186 to 124. [2021-10-11 02:33:15,012 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 124 states. [2021-10-11 02:33:15,012 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 124 states and 147 transitions. [2021-10-11 02:33:15,013 INFO L78 Accepts]: Start accepts. Automaton has 124 states and 147 transitions. Word has length 10 [2021-10-11 02:33:15,013 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:33:15,013 INFO L481 AbstractCegarLoop]: Abstraction has 124 states and 147 transitions. [2021-10-11 02:33:15,013 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-10-11 02:33:15,013 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 147 transitions. [2021-10-11 02:33:15,015 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-10-11 02:33:15,016 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:33:15,016 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:33:15,016 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-10-11 02:33:15,017 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.startErr46ASSERT_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.startErr47ASSERT_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]=== [2021-10-11 02:33:15,018 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:33:15,018 INFO L82 PathProgramCache]: Analyzing trace with hash 1895837447, now seen corresponding path program 1 times [2021-10-11 02:33:15,018 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:33:15,019 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1462337423] [2021-10-11 02:33:15,019 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:33:15,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:33:15,075 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:33:15,076 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1462337423] [2021-10-11 02:33:15,076 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:33:15,076 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-11 02:33:15,076 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [206210859] [2021-10-11 02:33:15,077 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-10-11 02:33:15,077 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-11 02:33:15,078 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-11 02:33:15,078 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-11 02:33:15,078 INFO L87 Difference]: Start difference. First operand 124 states and 147 transitions. Second operand 4 states. [2021-10-11 02:33:15,178 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:33:15,178 INFO L93 Difference]: Finished difference Result 191 states and 220 transitions. [2021-10-11 02:33:15,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-11 02:33:15,179 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 10 [2021-10-11 02:33:15,179 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:33:15,181 INFO L225 Difference]: With dead ends: 191 [2021-10-11 02:33:15,181 INFO L226 Difference]: Without dead ends: 188 [2021-10-11 02:33:15,181 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 [2021-10-11 02:33:15,182 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 188 states. [2021-10-11 02:33:15,188 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 188 to 128. [2021-10-11 02:33:15,189 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 128 states. [2021-10-11 02:33:15,189 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 128 states to 128 states and 152 transitions. [2021-10-11 02:33:15,190 INFO L78 Accepts]: Start accepts. Automaton has 128 states and 152 transitions. Word has length 10 [2021-10-11 02:33:15,190 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:33:15,190 INFO L481 AbstractCegarLoop]: Abstraction has 128 states and 152 transitions. [2021-10-11 02:33:15,190 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-10-11 02:33:15,190 INFO L276 IsEmpty]: Start isEmpty. Operand 128 states and 152 transitions. [2021-10-11 02:33:15,191 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-10-11 02:33:15,191 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:33:15,191 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:33:15,191 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-10-11 02:33:15,192 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.startErr46ASSERT_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.startErr47ASSERT_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]=== [2021-10-11 02:33:15,192 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:33:15,192 INFO L82 PathProgramCache]: Analyzing trace with hash -1356487797, now seen corresponding path program 1 times [2021-10-11 02:33:15,193 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:33:15,193 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [652450009] [2021-10-11 02:33:15,193 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:33:15,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 02:33:15,212 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 02:33:15,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 02:33:15,230 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 02:33:15,254 INFO L173 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2021-10-11 02:33:15,255 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2021-10-11 02:33:15,255 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-10-11 02:33:15,300 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.10 02:33:15 BoogieIcfgContainer [2021-10-11 02:33:15,300 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-11 02:33:15,301 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-11 02:33:15,301 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-11 02:33:15,301 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-11 02:33:15,302 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:33:13" (3/4) ... [2021-10-11 02:33:15,305 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-10-11 02:33:15,306 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-11 02:33:15,313 INFO L168 Benchmark]: Toolchain (without parser) took 3734.48 ms. Allocated memory was 104.9 MB in the beginning and 130.0 MB in the end (delta: 25.2 MB). Free memory was 70.9 MB in the beginning and 88.2 MB in the end (delta: -17.3 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-11 02:33:15,314 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 104.9 MB. Free memory was 75.8 MB in the beginning and 75.8 MB in the end (delta: 30.3 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 02:33:15,315 INFO L168 Benchmark]: CACSL2BoogieTranslator took 341.64 ms. Allocated memory is still 104.9 MB. Free memory was 70.6 MB in the beginning and 79.2 MB in the end (delta: -8.5 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-11 02:33:15,316 INFO L168 Benchmark]: Boogie Procedure Inliner took 61.48 ms. Allocated memory is still 104.9 MB. Free memory was 79.2 MB in the beginning and 76.6 MB in the end (delta: 2.6 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-11 02:33:15,316 INFO L168 Benchmark]: Boogie Preprocessor took 39.00 ms. Allocated memory is still 104.9 MB. Free memory was 76.6 MB in the beginning and 74.5 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-11 02:33:15,320 INFO L168 Benchmark]: RCFGBuilder took 1104.83 ms. Allocated memory is still 104.9 MB. Free memory was 74.5 MB in the beginning and 61.4 MB in the end (delta: 13.1 MB). Peak memory consumption was 46.1 MB. Max. memory is 16.1 GB. [2021-10-11 02:33:15,321 INFO L168 Benchmark]: TraceAbstraction took 2168.04 ms. Allocated memory was 104.9 MB in the beginning and 130.0 MB in the end (delta: 25.2 MB). Free memory was 60.8 MB in the beginning and 88.2 MB in the end (delta: -27.4 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 02:33:15,321 INFO L168 Benchmark]: Witness Printer took 4.99 ms. Allocated memory is still 130.0 MB. Free memory is still 88.2 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 02:33:15,328 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 104.9 MB. Free memory was 75.8 MB in the beginning and 75.8 MB in the end (delta: 30.3 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 341.64 ms. Allocated memory is still 104.9 MB. Free memory was 70.6 MB in the beginning and 79.2 MB in the end (delta: -8.5 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 61.48 ms. Allocated memory is still 104.9 MB. Free memory was 79.2 MB in the beginning and 76.6 MB in the end (delta: 2.6 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 39.00 ms. Allocated memory is still 104.9 MB. Free memory was 76.6 MB in the beginning and 74.5 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1104.83 ms. Allocated memory is still 104.9 MB. Free memory was 74.5 MB in the beginning and 61.4 MB in the end (delta: 13.1 MB). Peak memory consumption was 46.1 MB. Max. memory is 16.1 GB. * TraceAbstraction took 2168.04 ms. Allocated memory was 104.9 MB in the beginning and 130.0 MB in the end (delta: 25.2 MB). Free memory was 60.8 MB in the beginning and 88.2 MB in the end (delta: -27.4 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 4.99 ms. Allocated memory is still 130.0 MB. Free memory is still 88.2 MB. There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 73]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of bitwiseAnd at line 72. Possible FailurePath: [L222] unsigned int a ; [L223] unsigned int ma = __VERIFIER_nondet_uint(); [L224] signed char ea = __VERIFIER_nondet_char(); [L225] unsigned int b ; [L226] unsigned int mb = __VERIFIER_nondet_uint(); [L227] signed char eb = __VERIFIER_nondet_char(); [L228] unsigned int r_add1 ; [L229] unsigned int r_add2 ; [L230] unsigned int zero ; [L231] int tmp ; [L232] int tmp___0 ; [L233] int __retres14 ; [L21] unsigned int res ; [L22] unsigned int __retres4 ; [L25] COND TRUE ! m [L26] __retres4 = 0U [L76] return (__retres4); [L237] zero = base2flt(0, 0) [L21] unsigned int res ; [L22] unsigned int __retres4 ; [L25] COND FALSE !(! m) [L31] COND FALSE !(m < 1U << 24U) [L53] COND TRUE 1 [L55] COND FALSE !(m >= 1U << 25U) [L72] m = m & ~ (1U << 24U) [L73] EXPR e + 128 [L73] (e + 128) << 24U - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 140 locations, 48 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 2.0s, OverallIterations: 9, TraceHistogramMax: 1, AutomataDifference: 0.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1165 SDtfs, 1194 SDslu, 857 SDs, 0 SdLazy, 328 SolverSat, 88 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 24 GetRequests, 5 SyntacticMatches, 2 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=148occurred in iteration=3, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 8 MinimizatonAttempts, 430 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 79 NumberOfCodeBlocks, 79 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 60 ConstructedInterpolants, 0 QuantifiedInterpolants, 1344 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 PerfectInterpolantSequences, 0/0 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: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request...