./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-numeric/Binomial.c --full-output --architecture 64bit -------------------------------------------------------------------------------- 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_440af5d5-9251-428f-a6e1-14d8874de899/bin/utaipan-WLngWcDbfI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_440af5d5-9251-428f-a6e1-14d8874de899/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_440af5d5-9251-428f-a6e1-14d8874de899/bin/utaipan-WLngWcDbfI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_440af5d5-9251-428f-a6e1-14d8874de899/bin/utaipan-WLngWcDbfI/config/TaipanReach.xml -i ../../sv-benchmarks/c/termination-numeric/Binomial.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_440af5d5-9251-428f-a6e1-14d8874de899/bin/utaipan-WLngWcDbfI/config/svcomp-Overflow-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_440af5d5-9251-428f-a6e1-14d8874de899/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 64bit --witnessprinter.graph.data.programhash 7271d13f0b7b365fd7ecc81e9b65f9e103181ef3 ......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Using bit-precise analysis No suitable file found in config dir /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_440af5d5-9251-428f-a6e1-14d8874de899/bin/utaipan-WLngWcDbfI/config using search string *Overflow*64bit*_Bitvector*.epf No suitable settings file found using Overflow*64bit*_Bitvector ERROR: UNSUPPORTED PROPERTY Writing output log to file Ultimate.log Result: UNKNOWN --- Real Ultimate output --- This is Ultimate 0.2.0-7b2dab5 [2021-10-11 02:33:07,065 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-11 02:33:07,067 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-11 02:33:07,101 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-11 02:33:07,102 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-11 02:33:07,103 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-11 02:33:07,105 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-11 02:33:07,113 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-11 02:33:07,117 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-11 02:33:07,124 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-11 02:33:07,125 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-11 02:33:07,127 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-11 02:33:07,127 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-11 02:33:07,131 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-11 02:33:07,133 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-11 02:33:07,135 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-11 02:33:07,137 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-11 02:33:07,139 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-11 02:33:07,146 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-11 02:33:07,158 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-11 02:33:07,160 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-11 02:33:07,162 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-11 02:33:07,166 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-11 02:33:07,167 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-11 02:33:07,177 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-11 02:33:07,178 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-11 02:33:07,179 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-11 02:33:07,181 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-11 02:33:07,182 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-11 02:33:07,184 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-11 02:33:07,184 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-11 02:33:07,185 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-11 02:33:07,188 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-11 02:33:07,189 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-11 02:33:07,191 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-11 02:33:07,191 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-11 02:33:07,192 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-11 02:33:07,192 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-11 02:33:07,193 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-11 02:33:07,194 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-11 02:33:07,195 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-11 02:33:07,197 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_440af5d5-9251-428f-a6e1-14d8874de899/bin/utaipan-WLngWcDbfI/config/svcomp-Overflow-64bit-Taipan_Default.epf [2021-10-11 02:33:07,250 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-11 02:33:07,250 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-11 02:33:07,252 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-11 02:33:07,252 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-11 02:33:07,252 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-11 02:33:07,253 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-11 02:33:07,253 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-10-11 02:33:07,253 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-11 02:33:07,253 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-11 02:33:07,254 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-10-11 02:33:07,261 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-10-11 02:33:07,262 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-11 02:33:07,262 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-10-11 02:33:07,262 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-10-11 02:33:07,262 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-10-11 02:33:07,263 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-11 02:33:07,263 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-11 02:33:07,264 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-11 02:33:07,264 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-11 02:33:07,264 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-11 02:33:07,264 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-11 02:33:07,265 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-11 02:33:07,265 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2021-10-11 02:33:07,265 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-11 02:33:07,265 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-11 02:33:07,265 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-11 02:33:07,266 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-11 02:33:07,266 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-11 02:33:07,266 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-11 02:33:07,268 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-11 02:33:07,268 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-11 02:33:07,268 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-11 02:33:07,269 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-10-11 02:33:07,269 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-11 02:33:07,269 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-11 02:33:07,269 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-11 02:33:07,269 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-11 02:33:07,270 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_440af5d5-9251-428f-a6e1-14d8874de899/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_440af5d5-9251-428f-a6e1-14d8874de899/bin/utaipan-WLngWcDbfI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7271d13f0b7b365fd7ecc81e9b65f9e103181ef3 [2021-10-11 02:33:07,567 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-11 02:33:07,600 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-11 02:33:07,605 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-11 02:33:07,607 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-11 02:33:07,608 INFO L275 PluginConnector]: CDTParser initialized [2021-10-11 02:33:07,609 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_440af5d5-9251-428f-a6e1-14d8874de899/bin/utaipan-WLngWcDbfI/../../sv-benchmarks/c/termination-numeric/Binomial.c [2021-10-11 02:33:07,693 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_440af5d5-9251-428f-a6e1-14d8874de899/bin/utaipan-WLngWcDbfI/data/1ac0ff6ea/95240a6ac4a54ca1ba806c542619e7ca/FLAG8e4519ef1 [2021-10-11 02:33:08,249 INFO L306 CDTParser]: Found 1 translation units. [2021-10-11 02:33:08,250 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_440af5d5-9251-428f-a6e1-14d8874de899/sv-benchmarks/c/termination-numeric/Binomial.c [2021-10-11 02:33:08,261 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_440af5d5-9251-428f-a6e1-14d8874de899/bin/utaipan-WLngWcDbfI/data/1ac0ff6ea/95240a6ac4a54ca1ba806c542619e7ca/FLAG8e4519ef1 [2021-10-11 02:33:08,628 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_440af5d5-9251-428f-a6e1-14d8874de899/bin/utaipan-WLngWcDbfI/data/1ac0ff6ea/95240a6ac4a54ca1ba806c542619e7ca [2021-10-11 02:33:08,632 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-11 02:33:08,635 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-11 02:33:08,641 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-11 02:33:08,642 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-11 02:33:08,646 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-11 02:33:08,647 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 02:33:08" (1/1) ... [2021-10-11 02:33:08,650 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@18e9746f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:33:08, skipping insertion in model container [2021-10-11 02:33:08,651 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 02:33:08" (1/1) ... [2021-10-11 02:33:08,658 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-11 02:33:08,672 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-11 02:33:08,908 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 02:33:08,912 INFO L203 MainTranslator]: Completed pre-run [2021-10-11 02:33:08,929 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 02:33:08,941 INFO L208 MainTranslator]: Completed translation [2021-10-11 02:33:08,941 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:33:08 WrapperNode [2021-10-11 02:33:08,941 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-11 02:33:08,942 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-11 02:33:08,943 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-11 02:33:08,943 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-11 02:33:08,950 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:33:08" (1/1) ... [2021-10-11 02:33:08,955 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:33:08" (1/1) ... [2021-10-11 02:33:08,978 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-11 02:33:08,979 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-11 02:33:08,979 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-11 02:33:08,979 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-11 02:33:08,988 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:33:08" (1/1) ... [2021-10-11 02:33:08,988 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:33:08" (1/1) ... [2021-10-11 02:33:08,990 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:33:08" (1/1) ... [2021-10-11 02:33:08,990 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:33:08" (1/1) ... [2021-10-11 02:33:08,994 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:33:08" (1/1) ... [2021-10-11 02:33:08,998 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:33:08" (1/1) ... [2021-10-11 02:33:08,999 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:33:08" (1/1) ... [2021-10-11 02:33:09,001 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-11 02:33:09,002 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-11 02:33:09,003 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-11 02:33:09,003 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-11 02:33:09,004 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:33:08" (1/1) ... No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_440af5d5-9251-428f-a6e1-14d8874de899/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 02:33:09,088 INFO L130 BoogieDeclarations]: Found specification of procedure fact [2021-10-11 02:33:09,088 INFO L138 BoogieDeclarations]: Found implementation of procedure fact [2021-10-11 02:33:09,088 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-11 02:33:09,088 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-11 02:33:09,633 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-11 02:33:09,633 INFO L299 CfgBuilder]: Removed 10 assume(true) statements. [2021-10-11 02:33:09,636 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:33:09 BoogieIcfgContainer [2021-10-11 02:33:09,636 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-11 02:33:09,638 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-11 02:33:09,638 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-11 02:33:09,644 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-11 02:33:09,645 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 02:33:08" (1/3) ... [2021-10-11 02:33:09,646 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@54563e4c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 02:33:09, skipping insertion in model container [2021-10-11 02:33:09,647 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:33:08" (2/3) ... [2021-10-11 02:33:09,647 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@54563e4c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 02:33:09, skipping insertion in model container [2021-10-11 02:33:09,648 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:33:09" (3/3) ... [2021-10-11 02:33:09,649 INFO L111 eAbstractionObserver]: Analyzing ICFG Binomial.c [2021-10-11 02:33:09,664 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-11 02:33:09,668 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 20 error locations. [2021-10-11 02:33:09,680 INFO L253 AbstractCegarLoop]: Starting to check reachability of 20 error locations. [2021-10-11 02:33:09,722 INFO L377 AbstractCegarLoop]: Interprodecural is true [2021-10-11 02:33:09,722 INFO L378 AbstractCegarLoop]: Hoare is true [2021-10-11 02:33:09,723 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-10-11 02:33:09,723 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-11 02:33:09,723 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-11 02:33:09,723 INFO L382 AbstractCegarLoop]: Difference is false [2021-10-11 02:33:09,723 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-11 02:33:09,723 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-10-11 02:33:09,752 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states. [2021-10-11 02:33:09,756 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-10-11 02:33:09,757 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:33:09,757 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2021-10-11 02:33:09,758 INFO L429 AbstractCegarLoop]: === Iteration 1 === [factErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2021-10-11 02:33:09,766 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:33:09,766 INFO L82 PathProgramCache]: Analyzing trace with hash 1395358707, now seen corresponding path program 1 times [2021-10-11 02:33:09,776 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:33:09,777 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1255554464] [2021-10-11 02:33:09,777 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:33:09,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:33:09,959 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 02:33:09,959 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1255554464] [2021-10-11 02:33:09,960 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:33:09,961 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-11 02:33:09,962 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1255622428] [2021-10-11 02:33:09,966 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-10-11 02:33:09,967 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-11 02:33:09,981 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-11 02:33:09,982 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-11 02:33:09,984 INFO L87 Difference]: Start difference. First operand 67 states. Second operand 4 states. [2021-10-11 02:33:10,134 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:33:10,134 INFO L93 Difference]: Finished difference Result 134 states and 154 transitions. [2021-10-11 02:33:10,135 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-11 02:33:10,136 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 6 [2021-10-11 02:33:10,136 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:33:10,145 INFO L225 Difference]: With dead ends: 134 [2021-10-11 02:33:10,145 INFO L226 Difference]: Without dead ends: 66 [2021-10-11 02:33:10,151 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-11 02:33:10,170 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2021-10-11 02:33:10,209 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 66. [2021-10-11 02:33:10,211 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 66 states. [2021-10-11 02:33:10,219 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 75 transitions. [2021-10-11 02:33:10,220 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 75 transitions. Word has length 6 [2021-10-11 02:33:10,221 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:33:10,221 INFO L481 AbstractCegarLoop]: Abstraction has 66 states and 75 transitions. [2021-10-11 02:33:10,221 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-10-11 02:33:10,222 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 75 transitions. [2021-10-11 02:33:10,223 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-10-11 02:33:10,223 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:33:10,223 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:33:10,223 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-11 02:33:10,224 INFO L429 AbstractCegarLoop]: === Iteration 2 === [factErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2021-10-11 02:33:10,225 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:33:10,225 INFO L82 PathProgramCache]: Analyzing trace with hash 154399188, now seen corresponding path program 1 times [2021-10-11 02:33:10,225 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:33:10,225 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1301169147] [2021-10-11 02:33:10,225 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:33:10,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:33:10,260 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 02:33:10,260 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1301169147] [2021-10-11 02:33:10,260 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:33:10,261 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-11 02:33:10,261 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1937997555] [2021-10-11 02:33:10,262 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-10-11 02:33:10,262 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-11 02:33:10,263 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-11 02:33:10,264 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-11 02:33:10,264 INFO L87 Difference]: Start difference. First operand 66 states and 75 transitions. Second operand 4 states. [2021-10-11 02:33:10,432 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:33:10,432 INFO L93 Difference]: Finished difference Result 189 states and 216 transitions. [2021-10-11 02:33:10,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-11 02:33:10,434 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 10 [2021-10-11 02:33:10,434 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:33:10,436 INFO L225 Difference]: With dead ends: 189 [2021-10-11 02:33:10,436 INFO L226 Difference]: Without dead ends: 126 [2021-10-11 02:33:10,438 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-11 02:33:10,439 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 126 states. [2021-10-11 02:33:10,453 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 126 to 69. [2021-10-11 02:33:10,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 69 states. [2021-10-11 02:33:10,455 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 78 transitions. [2021-10-11 02:33:10,455 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 78 transitions. Word has length 10 [2021-10-11 02:33:10,455 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:33:10,455 INFO L481 AbstractCegarLoop]: Abstraction has 69 states and 78 transitions. [2021-10-11 02:33:10,456 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-10-11 02:33:10,456 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 78 transitions. [2021-10-11 02:33:10,456 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-10-11 02:33:10,456 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:33:10,456 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:33:10,457 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-11 02:33:10,457 INFO L429 AbstractCegarLoop]: === Iteration 3 === [factErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2021-10-11 02:33:10,462 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:33:10,463 INFO L82 PathProgramCache]: Analyzing trace with hash 133902980, now seen corresponding path program 1 times [2021-10-11 02:33:10,463 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:33:10,463 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [377415350] [2021-10-11 02:33:10,463 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:33:10,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:33:10,543 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 02:33:10,544 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [377415350] [2021-10-11 02:33:10,544 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:33:10,544 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-11 02:33:10,544 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [414396301] [2021-10-11 02:33:10,545 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-10-11 02:33:10,545 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-11 02:33:10,546 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-11 02:33:10,546 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-10-11 02:33:10,546 INFO L87 Difference]: Start difference. First operand 69 states and 78 transitions. Second operand 6 states. [2021-10-11 02:33:10,716 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:33:10,717 INFO L93 Difference]: Finished difference Result 199 states and 240 transitions. [2021-10-11 02:33:10,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-11 02:33:10,717 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 10 [2021-10-11 02:33:10,723 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:33:10,728 INFO L225 Difference]: With dead ends: 199 [2021-10-11 02:33:10,728 INFO L226 Difference]: Without dead ends: 136 [2021-10-11 02:33:10,734 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2021-10-11 02:33:10,735 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 136 states. [2021-10-11 02:33:10,766 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 136 to 102. [2021-10-11 02:33:10,767 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 102 states. [2021-10-11 02:33:10,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 132 transitions. [2021-10-11 02:33:10,770 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 132 transitions. Word has length 10 [2021-10-11 02:33:10,771 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:33:10,771 INFO L481 AbstractCegarLoop]: Abstraction has 102 states and 132 transitions. [2021-10-11 02:33:10,771 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2021-10-11 02:33:10,771 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 132 transitions. [2021-10-11 02:33:10,772 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-10-11 02:33:10,772 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:33:10,772 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:33:10,772 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-10-11 02:33:10,773 INFO L429 AbstractCegarLoop]: === Iteration 4 === [factErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2021-10-11 02:33:10,774 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:33:10,775 INFO L82 PathProgramCache]: Analyzing trace with hash -2023579039, now seen corresponding path program 1 times [2021-10-11 02:33:10,775 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:33:10,776 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [28623739] [2021-10-11 02:33:10,776 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:33:10,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:33:10,873 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:33:10,877 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [28623739] [2021-10-11 02:33:10,878 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:33:10,878 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-11 02:33:10,878 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [605005126] [2021-10-11 02:33:10,879 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-10-11 02:33:10,879 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-11 02:33:10,879 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-11 02:33:10,880 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-10-11 02:33:10,881 INFO L87 Difference]: Start difference. First operand 102 states and 132 transitions. Second operand 6 states. [2021-10-11 02:33:11,042 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:33:11,043 INFO L93 Difference]: Finished difference Result 272 states and 374 transitions. [2021-10-11 02:33:11,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-11 02:33:11,044 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 16 [2021-10-11 02:33:11,044 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:33:11,046 INFO L225 Difference]: With dead ends: 272 [2021-10-11 02:33:11,046 INFO L226 Difference]: Without dead ends: 176 [2021-10-11 02:33:11,048 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2021-10-11 02:33:11,049 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 176 states. [2021-10-11 02:33:11,064 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 176 to 116. [2021-10-11 02:33:11,065 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 116 states. [2021-10-11 02:33:11,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 116 states and 152 transitions. [2021-10-11 02:33:11,067 INFO L78 Accepts]: Start accepts. Automaton has 116 states and 152 transitions. Word has length 16 [2021-10-11 02:33:11,067 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:33:11,067 INFO L481 AbstractCegarLoop]: Abstraction has 116 states and 152 transitions. [2021-10-11 02:33:11,067 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2021-10-11 02:33:11,067 INFO L276 IsEmpty]: Start isEmpty. Operand 116 states and 152 transitions. [2021-10-11 02:33:11,068 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-10-11 02:33:11,068 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:33:11,068 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:33:11,069 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-10-11 02:33:11,069 INFO L429 AbstractCegarLoop]: === Iteration 5 === [factErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2021-10-11 02:33:11,070 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:33:11,070 INFO L82 PathProgramCache]: Analyzing trace with hash -282699610, now seen corresponding path program 1 times [2021-10-11 02:33:11,070 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:33:11,070 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1981035158] [2021-10-11 02:33:11,071 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:33:11,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:33:11,127 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-10-11 02:33:11,127 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1981035158] [2021-10-11 02:33:11,127 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:33:11,128 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-11 02:33:11,128 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [6021090] [2021-10-11 02:33:11,128 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-10-11 02:33:11,129 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-11 02:33:11,129 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-11 02:33:11,129 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-11 02:33:11,130 INFO L87 Difference]: Start difference. First operand 116 states and 152 transitions. Second operand 5 states. [2021-10-11 02:33:11,252 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:33:11,252 INFO L93 Difference]: Finished difference Result 173 states and 199 transitions. [2021-10-11 02:33:11,253 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-11 02:33:11,253 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 19 [2021-10-11 02:33:11,253 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:33:11,255 INFO L225 Difference]: With dead ends: 173 [2021-10-11 02:33:11,255 INFO L226 Difference]: Without dead ends: 172 [2021-10-11 02:33:11,256 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-10-11 02:33:11,256 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 172 states. [2021-10-11 02:33:11,269 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 172 to 118. [2021-10-11 02:33:11,270 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 118 states. [2021-10-11 02:33:11,271 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 118 states to 118 states and 154 transitions. [2021-10-11 02:33:11,271 INFO L78 Accepts]: Start accepts. Automaton has 118 states and 154 transitions. Word has length 19 [2021-10-11 02:33:11,272 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:33:11,272 INFO L481 AbstractCegarLoop]: Abstraction has 118 states and 154 transitions. [2021-10-11 02:33:11,272 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-10-11 02:33:11,272 INFO L276 IsEmpty]: Start isEmpty. Operand 118 states and 154 transitions. [2021-10-11 02:33:11,273 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-10-11 02:33:11,273 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:33:11,273 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:33:11,274 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-10-11 02:33:11,274 INFO L429 AbstractCegarLoop]: === Iteration 6 === [factErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2021-10-11 02:33:11,275 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:33:11,275 INFO L82 PathProgramCache]: Analyzing trace with hash -173753234, now seen corresponding path program 1 times [2021-10-11 02:33:11,275 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:33:11,275 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1144885206] [2021-10-11 02:33:11,275 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:33:11,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:33:11,315 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-10-11 02:33:11,315 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1144885206] [2021-10-11 02:33:11,316 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:33:11,316 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-11 02:33:11,316 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [573339928] [2021-10-11 02:33:11,317 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-10-11 02:33:11,317 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-11 02:33:11,317 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-11 02:33:11,318 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-11 02:33:11,318 INFO L87 Difference]: Start difference. First operand 118 states and 154 transitions. Second operand 5 states. [2021-10-11 02:33:11,440 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:33:11,440 INFO L93 Difference]: Finished difference Result 144 states and 168 transitions. [2021-10-11 02:33:11,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-11 02:33:11,441 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 20 [2021-10-11 02:33:11,441 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:33:11,442 INFO L225 Difference]: With dead ends: 144 [2021-10-11 02:33:11,443 INFO L226 Difference]: Without dead ends: 142 [2021-10-11 02:33:11,443 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-10-11 02:33:11,444 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 142 states. [2021-10-11 02:33:11,455 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 142 to 116. [2021-10-11 02:33:11,455 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 116 states. [2021-10-11 02:33:11,456 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 116 states and 150 transitions. [2021-10-11 02:33:11,456 INFO L78 Accepts]: Start accepts. Automaton has 116 states and 150 transitions. Word has length 20 [2021-10-11 02:33:11,457 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:33:11,457 INFO L481 AbstractCegarLoop]: Abstraction has 116 states and 150 transitions. [2021-10-11 02:33:11,457 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-10-11 02:33:11,457 INFO L276 IsEmpty]: Start isEmpty. Operand 116 states and 150 transitions. [2021-10-11 02:33:11,458 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-10-11 02:33:11,458 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:33:11,458 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:33:11,459 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-10-11 02:33:11,459 INFO L429 AbstractCegarLoop]: === Iteration 7 === [factErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2021-10-11 02:33:11,459 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:33:11,460 INFO L82 PathProgramCache]: Analyzing trace with hash -482951234, now seen corresponding path program 1 times [2021-10-11 02:33:11,460 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:33:11,460 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [625267052] [2021-10-11 02:33:11,460 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:33:11,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:33:11,515 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-10-11 02:33:11,515 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [625267052] [2021-10-11 02:33:11,515 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:33:11,516 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-10-11 02:33:11,516 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [175253045] [2021-10-11 02:33:11,516 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-10-11 02:33:11,516 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-11 02:33:11,517 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-11 02:33:11,517 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-10-11 02:33:11,518 INFO L87 Difference]: Start difference. First operand 116 states and 150 transitions. Second operand 7 states. [2021-10-11 02:33:11,736 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:33:11,737 INFO L93 Difference]: Finished difference Result 278 states and 350 transitions. [2021-10-11 02:33:11,737 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-10-11 02:33:11,738 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 24 [2021-10-11 02:33:11,738 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:33:11,742 INFO L225 Difference]: With dead ends: 278 [2021-10-11 02:33:11,743 INFO L226 Difference]: Without dead ends: 173 [2021-10-11 02:33:11,744 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2021-10-11 02:33:11,745 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 173 states. [2021-10-11 02:33:11,772 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 173 to 122. [2021-10-11 02:33:11,772 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 122 states. [2021-10-11 02:33:11,774 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 122 states and 156 transitions. [2021-10-11 02:33:11,775 INFO L78 Accepts]: Start accepts. Automaton has 122 states and 156 transitions. Word has length 24 [2021-10-11 02:33:11,778 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:33:11,778 INFO L481 AbstractCegarLoop]: Abstraction has 122 states and 156 transitions. [2021-10-11 02:33:11,778 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2021-10-11 02:33:11,778 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states and 156 transitions. [2021-10-11 02:33:11,779 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-10-11 02:33:11,780 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:33:11,780 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:33:11,780 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-10-11 02:33:11,780 INFO L429 AbstractCegarLoop]: === Iteration 8 === [factErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2021-10-11 02:33:11,781 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:33:11,781 INFO L82 PathProgramCache]: Analyzing trace with hash 539716203, now seen corresponding path program 1 times [2021-10-11 02:33:11,781 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:33:11,782 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [87324060] [2021-10-11 02:33:11,782 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:33:11,799 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-11 02:33:11,800 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [379654226] [2021-10-11 02:33:11,800 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_440af5d5-9251-428f-a6e1-14d8874de899/bin/utaipan-WLngWcDbfI/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-11 02:33:11,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:33:11,846 INFO L263 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 9 conjunts are in the unsatisfiable core [2021-10-11 02:33:11,852 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 02:33:12,006 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2021-10-11 02:33:12,006 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-11 02:33:12,125 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [87324060] [2021-10-11 02:33:12,125 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-11 02:33:12,126 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [379654226] [2021-10-11 02:33:12,126 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: cannot handle proper monomial [2021-10-11 02:33:12,126 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [415927047] [2021-10-11 02:33:12,156 INFO L159 IcfgInterpreter]: Started Sifa with 20 locations of interest [2021-10-11 02:33:12,156 INFO L166 IcfgInterpreter]: Building call graph [2021-10-11 02:33:12,161 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-10-11 02:33:12,168 INFO L176 IcfgInterpreter]: Starting interpretation [2021-10-11 02:33:12,168 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-10-11 02:33:12,753 INFO L197 IcfgInterpreter]: Interpreting procedure fact with input of size 6 for LOIs [2021-10-11 02:33:12,756 INFO L180 IcfgInterpreter]: Interpretation finished [2021-10-11 02:33:13,142 WARN L197 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 33 [2021-10-11 02:33:13,353 WARN L197 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 36 [2021-10-11 02:33:13,682 WARN L197 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 38 [2021-10-11 02:33:13,730 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:33:13,731 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-10-11 02:33:13,731 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [453441542] [2021-10-11 02:33:13,732 INFO L461 AbstractCegarLoop]: Interpolant automaton has 13 states [2021-10-11 02:33:13,732 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-11 02:33:13,732 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-10-11 02:33:13,732 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=231, Unknown=0, NotChecked=0, Total=306 [2021-10-11 02:33:13,733 INFO L87 Difference]: Start difference. First operand 122 states and 156 transitions. Second operand 13 states. [2021-10-11 02:33:14,045 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:33:14,045 INFO L93 Difference]: Finished difference Result 160 states and 180 transitions. [2021-10-11 02:33:14,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-10-11 02:33:14,047 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 27 [2021-10-11 02:33:14,047 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:33:14,049 INFO L225 Difference]: With dead ends: 160 [2021-10-11 02:33:14,049 INFO L226 Difference]: Without dead ends: 156 [2021-10-11 02:33:14,050 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 33 SyntacticMatches, 7 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 84 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=75, Invalid=231, Unknown=0, NotChecked=0, Total=306 [2021-10-11 02:33:14,050 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 156 states. [2021-10-11 02:33:14,072 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 156 to 135. [2021-10-11 02:33:14,073 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 135 states. [2021-10-11 02:33:14,074 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 135 states to 135 states and 167 transitions. [2021-10-11 02:33:14,075 INFO L78 Accepts]: Start accepts. Automaton has 135 states and 167 transitions. Word has length 27 [2021-10-11 02:33:14,077 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:33:14,077 INFO L481 AbstractCegarLoop]: Abstraction has 135 states and 167 transitions. [2021-10-11 02:33:14,077 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2021-10-11 02:33:14,078 INFO L276 IsEmpty]: Start isEmpty. Operand 135 states and 167 transitions. [2021-10-11 02:33:14,078 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2021-10-11 02:33:14,079 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:33:14,079 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:33:14,293 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2021-10-11 02:33:14,294 INFO L429 AbstractCegarLoop]: === Iteration 9 === [factErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2021-10-11 02:33:14,294 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:33:14,294 INFO L82 PathProgramCache]: Analyzing trace with hash -534920370, now seen corresponding path program 1 times [2021-10-11 02:33:14,294 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:33:14,295 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [261736916] [2021-10-11 02:33:14,295 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:33:14,316 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-11 02:33:14,316 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [857721809] [2021-10-11 02:33:14,317 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_440af5d5-9251-428f-a6e1-14d8874de899/bin/utaipan-WLngWcDbfI/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-11 02:33:14,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:33:14,375 INFO L263 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-11 02:33:14,377 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 02:33:14,414 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-10-11 02:33:14,414 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-11 02:33:14,459 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-10-11 02:33:14,459 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [261736916] [2021-10-11 02:33:14,459 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-11 02:33:14,459 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [857721809] [2021-10-11 02:33:14,460 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:33:14,460 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 5 [2021-10-11 02:33:14,460 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1508506018] [2021-10-11 02:33:14,460 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-10-11 02:33:14,460 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-11 02:33:14,461 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-11 02:33:14,461 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-10-11 02:33:14,461 INFO L87 Difference]: Start difference. First operand 135 states and 167 transitions. Second operand 6 states. [2021-10-11 02:33:14,556 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:33:14,556 INFO L93 Difference]: Finished difference Result 245 states and 310 transitions. [2021-10-11 02:33:14,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-11 02:33:14,557 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 32 [2021-10-11 02:33:14,557 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:33:14,559 INFO L225 Difference]: With dead ends: 245 [2021-10-11 02:33:14,559 INFO L226 Difference]: Without dead ends: 244 [2021-10-11 02:33:14,560 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2021-10-11 02:33:14,560 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 244 states. [2021-10-11 02:33:14,579 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 244 to 215. [2021-10-11 02:33:14,580 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 215 states. [2021-10-11 02:33:14,582 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 215 states to 215 states and 297 transitions. [2021-10-11 02:33:14,582 INFO L78 Accepts]: Start accepts. Automaton has 215 states and 297 transitions. Word has length 32 [2021-10-11 02:33:14,583 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:33:14,583 INFO L481 AbstractCegarLoop]: Abstraction has 215 states and 297 transitions. [2021-10-11 02:33:14,583 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2021-10-11 02:33:14,583 INFO L276 IsEmpty]: Start isEmpty. Operand 215 states and 297 transitions. [2021-10-11 02:33:14,584 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-10-11 02:33:14,584 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:33:14,584 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:33:14,809 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-11 02:33:14,810 INFO L429 AbstractCegarLoop]: === Iteration 10 === [factErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2021-10-11 02:33:14,810 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:33:14,810 INFO L82 PathProgramCache]: Analyzing trace with hash 597337838, now seen corresponding path program 1 times [2021-10-11 02:33:14,810 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:33:14,811 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [48534209] [2021-10-11 02:33:14,811 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:33:14,822 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-11 02:33:14,822 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1577236305] [2021-10-11 02:33:14,822 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_440af5d5-9251-428f-a6e1-14d8874de899/bin/utaipan-WLngWcDbfI/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-11 02:33:14,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:33:14,861 INFO L263 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-11 02:33:14,863 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 02:33:14,901 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-10-11 02:33:14,901 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-11 02:33:14,967 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-10-11 02:33:14,967 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [48534209] [2021-10-11 02:33:14,967 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-11 02:33:14,968 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1577236305] [2021-10-11 02:33:14,968 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:33:14,968 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 5 [2021-10-11 02:33:14,968 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1908136062] [2021-10-11 02:33:14,968 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-10-11 02:33:14,969 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-11 02:33:14,969 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-11 02:33:14,969 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-10-11 02:33:14,970 INFO L87 Difference]: Start difference. First operand 215 states and 297 transitions. Second operand 6 states. [2021-10-11 02:33:15,020 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:33:15,021 INFO L93 Difference]: Finished difference Result 215 states and 297 transitions. [2021-10-11 02:33:15,021 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-11 02:33:15,021 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 33 [2021-10-11 02:33:15,022 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:33:15,024 INFO L225 Difference]: With dead ends: 215 [2021-10-11 02:33:15,024 INFO L226 Difference]: Without dead ends: 214 [2021-10-11 02:33:15,025 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 60 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-10-11 02:33:15,025 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 214 states. [2021-10-11 02:33:15,051 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 214 to 214. [2021-10-11 02:33:15,052 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 214 states. [2021-10-11 02:33:15,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 214 states to 214 states and 293 transitions. [2021-10-11 02:33:15,054 INFO L78 Accepts]: Start accepts. Automaton has 214 states and 293 transitions. Word has length 33 [2021-10-11 02:33:15,055 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:33:15,055 INFO L481 AbstractCegarLoop]: Abstraction has 214 states and 293 transitions. [2021-10-11 02:33:15,055 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2021-10-11 02:33:15,055 INFO L276 IsEmpty]: Start isEmpty. Operand 214 states and 293 transitions. [2021-10-11 02:33:15,066 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2021-10-11 02:33:15,066 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:33:15,066 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:33:15,267 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-11 02:33:15,267 INFO L429 AbstractCegarLoop]: === Iteration 11 === [factErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2021-10-11 02:33:15,268 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:33:15,268 INFO L82 PathProgramCache]: Analyzing trace with hash -1483950380, now seen corresponding path program 1 times [2021-10-11 02:33:15,268 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:33:15,268 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [722992813] [2021-10-11 02:33:15,268 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:33:15,276 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-11 02:33:15,276 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1289001056] [2021-10-11 02:33:15,277 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_440af5d5-9251-428f-a6e1-14d8874de899/bin/utaipan-WLngWcDbfI/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-11 02:33:15,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:33:15,323 INFO L263 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-11 02:33:15,325 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 02:33:15,372 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2021-10-11 02:33:15,372 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-11 02:33:15,426 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2021-10-11 02:33:15,426 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [722992813] [2021-10-11 02:33:15,426 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-11 02:33:15,430 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1289001056] [2021-10-11 02:33:15,430 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:33:15,430 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 5 [2021-10-11 02:33:15,430 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1821014335] [2021-10-11 02:33:15,431 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-10-11 02:33:15,431 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-11 02:33:15,432 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-11 02:33:15,433 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-10-11 02:33:15,433 INFO L87 Difference]: Start difference. First operand 214 states and 293 transitions. Second operand 6 states. [2021-10-11 02:33:15,534 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:33:15,534 INFO L93 Difference]: Finished difference Result 330 states and 442 transitions. [2021-10-11 02:33:15,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-11 02:33:15,535 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 35 [2021-10-11 02:33:15,535 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:33:15,537 INFO L225 Difference]: With dead ends: 330 [2021-10-11 02:33:15,537 INFO L226 Difference]: Without dead ends: 329 [2021-10-11 02:33:15,538 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 64 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2021-10-11 02:33:15,539 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 329 states. [2021-10-11 02:33:15,562 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 329 to 304. [2021-10-11 02:33:15,562 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 304 states. [2021-10-11 02:33:15,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 304 states to 304 states and 438 transitions. [2021-10-11 02:33:15,565 INFO L78 Accepts]: Start accepts. Automaton has 304 states and 438 transitions. Word has length 35 [2021-10-11 02:33:15,565 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:33:15,566 INFO L481 AbstractCegarLoop]: Abstraction has 304 states and 438 transitions. [2021-10-11 02:33:15,566 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2021-10-11 02:33:15,566 INFO L276 IsEmpty]: Start isEmpty. Operand 304 states and 438 transitions. [2021-10-11 02:33:15,566 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2021-10-11 02:33:15,566 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:33:15,566 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:33:15,785 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-11 02:33:15,786 INFO L429 AbstractCegarLoop]: === Iteration 12 === [factErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2021-10-11 02:33:15,786 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:33:15,786 INFO L82 PathProgramCache]: Analyzing trace with hash 1242178608, now seen corresponding path program 1 times [2021-10-11 02:33:15,786 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:33:15,787 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [683285468] [2021-10-11 02:33:15,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:33:15,795 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-11 02:33:15,795 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [777214927] [2021-10-11 02:33:15,795 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_440af5d5-9251-428f-a6e1-14d8874de899/bin/utaipan-WLngWcDbfI/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-11 02:33:15,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:33:15,838 INFO L263 TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-11 02:33:15,839 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 02:33:15,876 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2021-10-11 02:33:15,876 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-11 02:33:15,919 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2021-10-11 02:33:15,919 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [683285468] [2021-10-11 02:33:15,920 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-11 02:33:15,920 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [777214927] [2021-10-11 02:33:15,920 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:33:15,920 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 5 [2021-10-11 02:33:15,920 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1704007112] [2021-10-11 02:33:15,921 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-10-11 02:33:15,921 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-11 02:33:15,921 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-11 02:33:15,921 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-10-11 02:33:15,922 INFO L87 Difference]: Start difference. First operand 304 states and 438 transitions. Second operand 6 states. [2021-10-11 02:33:15,993 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:33:15,993 INFO L93 Difference]: Finished difference Result 304 states and 438 transitions. [2021-10-11 02:33:15,993 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-11 02:33:15,994 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 36 [2021-10-11 02:33:15,995 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:33:15,998 INFO L225 Difference]: With dead ends: 304 [2021-10-11 02:33:15,998 INFO L226 Difference]: Without dead ends: 303 [2021-10-11 02:33:15,999 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 66 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-10-11 02:33:16,000 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 303 states. [2021-10-11 02:33:16,027 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 303 to 303. [2021-10-11 02:33:16,027 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 303 states. [2021-10-11 02:33:16,030 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 303 states to 303 states and 436 transitions. [2021-10-11 02:33:16,030 INFO L78 Accepts]: Start accepts. Automaton has 303 states and 436 transitions. Word has length 36 [2021-10-11 02:33:16,030 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:33:16,031 INFO L481 AbstractCegarLoop]: Abstraction has 303 states and 436 transitions. [2021-10-11 02:33:16,031 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2021-10-11 02:33:16,031 INFO L276 IsEmpty]: Start isEmpty. Operand 303 states and 436 transitions. [2021-10-11 02:33:16,031 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2021-10-11 02:33:16,032 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:33:16,032 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:33:16,245 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable43 [2021-10-11 02:33:16,246 INFO L429 AbstractCegarLoop]: === Iteration 13 === [factErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2021-10-11 02:33:16,246 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:33:16,246 INFO L82 PathProgramCache]: Analyzing trace with hash -2100636619, now seen corresponding path program 1 times [2021-10-11 02:33:16,246 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:33:16,247 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [538897959] [2021-10-11 02:33:16,247 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:33:16,254 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-11 02:33:16,254 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [966902439] [2021-10-11 02:33:16,254 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_440af5d5-9251-428f-a6e1-14d8874de899/bin/utaipan-WLngWcDbfI/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-11 02:33:16,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:33:16,316 INFO L263 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 8 conjunts are in the unsatisfiable core [2021-10-11 02:33:16,318 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 02:33:16,407 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 6 proven. 2 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-10-11 02:33:16,407 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-11 02:33:16,509 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 6 proven. 2 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-10-11 02:33:16,509 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [538897959] [2021-10-11 02:33:16,510 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-11 02:33:16,510 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [966902439] [2021-10-11 02:33:16,510 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1139024203] [2021-10-11 02:33:16,513 INFO L159 IcfgInterpreter]: Started Sifa with 28 locations of interest [2021-10-11 02:33:16,513 INFO L166 IcfgInterpreter]: Building call graph [2021-10-11 02:33:16,513 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-10-11 02:33:16,514 INFO L176 IcfgInterpreter]: Starting interpretation [2021-10-11 02:33:16,514 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-10-11 02:33:17,388 INFO L197 IcfgInterpreter]: Interpreting procedure fact with input of size 6 for LOIs [2021-10-11 02:33:17,391 INFO L180 IcfgInterpreter]: Interpretation finished [2021-10-11 02:33:17,638 WARN L197 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 35 [2021-10-11 02:33:17,840 WARN L197 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 42 [2021-10-11 02:33:18,070 WARN L197 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 29 [2021-10-11 02:33:18,366 WARN L197 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 34 [2021-10-11 02:33:18,598 WARN L197 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 36 [2021-10-11 02:33:18,966 WARN L197 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 38 [2021-10-11 02:33:19,708 WARN L197 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 30 [2021-10-11 02:33:19,769 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2021-10-11 02:33:19,770 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [7, 7] total 29 [2021-10-11 02:33:19,770 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [84376500] [2021-10-11 02:33:19,770 INFO L461 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-10-11 02:33:19,770 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-11 02:33:19,771 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-10-11 02:33:19,771 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=187, Invalid=683, Unknown=0, NotChecked=0, Total=870 [2021-10-11 02:33:19,772 INFO L87 Difference]: Start difference. First operand 303 states and 436 transitions. Second operand 18 states. [2021-10-11 02:33:20,305 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:33:20,305 INFO L93 Difference]: Finished difference Result 637 states and 925 transitions. [2021-10-11 02:33:20,305 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-10-11 02:33:20,306 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 39 [2021-10-11 02:33:20,306 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:33:20,310 INFO L225 Difference]: With dead ends: 637 [2021-10-11 02:33:20,310 INFO L226 Difference]: Without dead ends: 373 [2021-10-11 02:33:20,317 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 115 GetRequests, 77 SyntacticMatches, 10 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 363 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=187, Invalid=683, Unknown=0, NotChecked=0, Total=870 [2021-10-11 02:33:20,319 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 373 states. [2021-10-11 02:33:20,372 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 373 to 331. [2021-10-11 02:33:20,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 331 states. [2021-10-11 02:33:20,376 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 331 states to 331 states and 464 transitions. [2021-10-11 02:33:20,376 INFO L78 Accepts]: Start accepts. Automaton has 331 states and 464 transitions. Word has length 39 [2021-10-11 02:33:20,376 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:33:20,376 INFO L481 AbstractCegarLoop]: Abstraction has 331 states and 464 transitions. [2021-10-11 02:33:20,376 INFO L482 AbstractCegarLoop]: Interpolant automaton has 18 states. [2021-10-11 02:33:20,377 INFO L276 IsEmpty]: Start isEmpty. Operand 331 states and 464 transitions. [2021-10-11 02:33:20,377 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2021-10-11 02:33:20,377 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:33:20,378 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:33:20,602 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44,7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-11 02:33:20,603 INFO L429 AbstractCegarLoop]: === Iteration 14 === [factErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2021-10-11 02:33:20,603 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:33:20,603 INFO L82 PathProgramCache]: Analyzing trace with hash 1273784600, now seen corresponding path program 1 times [2021-10-11 02:33:20,603 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:33:20,603 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [608761739] [2021-10-11 02:33:20,603 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:33:20,611 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-11 02:33:20,611 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1598784162] [2021-10-11 02:33:20,612 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_440af5d5-9251-428f-a6e1-14d8874de899/bin/utaipan-WLngWcDbfI/z3 Starting monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-11 02:33:20,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:33:20,677 INFO L263 TraceCheckSpWp]: Trace formula consists of 117 conjuncts, 8 conjunts are in the unsatisfiable core [2021-10-11 02:33:20,686 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 02:33:20,779 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 10 proven. 1 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-10-11 02:33:20,779 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-11 02:33:20,886 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 9 proven. 2 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-10-11 02:33:20,886 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [608761739] [2021-10-11 02:33:20,887 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-11 02:33:20,887 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1598784162] [2021-10-11 02:33:20,887 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [790818456] [2021-10-11 02:33:20,893 INFO L159 IcfgInterpreter]: Started Sifa with 30 locations of interest [2021-10-11 02:33:20,894 INFO L166 IcfgInterpreter]: Building call graph [2021-10-11 02:33:20,894 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-10-11 02:33:20,895 INFO L176 IcfgInterpreter]: Starting interpretation [2021-10-11 02:33:20,895 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-10-11 02:33:21,527 FATAL L? ?]: Ignoring exception! java.util.ConcurrentModificationException at java.base/java.util.HashMap.computeIfAbsent(HashMap.java:1134) at de.uni_freiburg.informatik.ultimate.lib.sifa.summarizers.FixpointLoopSummarizer.summarize(FixpointLoopSummarizer.java:94) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretLoop(DagInterpreter.java:177) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretNode(DagInterpreter.java:168) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:123) at de.uni_freiburg.informatik.ultimate.lib.sifa.IcfgInterpreter.interpretLoisInProcedure(IcfgInterpreter.java:136) at de.uni_freiburg.informatik.ultimate.lib.sifa.IcfgInterpreter.interpret(IcfgInterpreter.java:127) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.SifaRunner.(SifaRunner.java:102) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSifa.construct(IpTcStrategyModuleSifa.java:67) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:100) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:76) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:289) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:189) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:179) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:84) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:74) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:511) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:438) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:372) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopResult.iterate(CegarLoopResult.java:138) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterateNew(TraceAbstractionStarter.java:345) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:198) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:150) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-10-11 02:33:21,529 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-11 02:33:21,533 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 13 [2021-10-11 02:33:21,533 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [210151588] [2021-10-11 02:33:21,535 INFO L461 AbstractCegarLoop]: Interpolant automaton has 13 states [2021-10-11 02:33:21,535 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-11 02:33:21,536 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-10-11 02:33:21,536 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2021-10-11 02:33:21,536 INFO L87 Difference]: Start difference. First operand 331 states and 464 transitions. Second operand 13 states. [2021-10-11 02:33:21,949 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:33:21,949 INFO L93 Difference]: Finished difference Result 694 states and 955 transitions. [2021-10-11 02:33:21,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-10-11 02:33:21,950 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 43 [2021-10-11 02:33:21,950 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:33:21,953 INFO L225 Difference]: With dead ends: 694 [2021-10-11 02:33:21,954 INFO L226 Difference]: Without dead ends: 479 [2021-10-11 02:33:21,955 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 73 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 104 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=130, Invalid=422, Unknown=0, NotChecked=0, Total=552 [2021-10-11 02:33:21,956 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 479 states. [2021-10-11 02:33:21,985 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 479 to 356. [2021-10-11 02:33:21,985 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 356 states. [2021-10-11 02:33:21,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 356 states to 356 states and 492 transitions. [2021-10-11 02:33:21,989 INFO L78 Accepts]: Start accepts. Automaton has 356 states and 492 transitions. Word has length 43 [2021-10-11 02:33:21,990 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:33:21,991 INFO L481 AbstractCegarLoop]: Abstraction has 356 states and 492 transitions. [2021-10-11 02:33:21,991 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2021-10-11 02:33:21,991 INFO L276 IsEmpty]: Start isEmpty. Operand 356 states and 492 transitions. [2021-10-11 02:33:21,991 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2021-10-11 02:33:21,992 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:33:21,992 INFO L422 BasicCegarLoop]: trace histogram [5, 4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:33:22,217 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable112 [2021-10-11 02:33:22,218 INFO L429 AbstractCegarLoop]: === Iteration 15 === [factErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2021-10-11 02:33:22,218 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:33:22,218 INFO L82 PathProgramCache]: Analyzing trace with hash -1685891300, now seen corresponding path program 1 times [2021-10-11 02:33:22,218 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:33:22,218 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1562096340] [2021-10-11 02:33:22,219 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:33:22,226 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-11 02:33:22,226 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2133429865] [2021-10-11 02:33:22,226 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_440af5d5-9251-428f-a6e1-14d8874de899/bin/utaipan-WLngWcDbfI/z3 Starting monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-11 02:33:22,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:33:22,268 INFO L263 TraceCheckSpWp]: Trace formula consists of 123 conjuncts, 19 conjunts are in the unsatisfiable core [2021-10-11 02:33:22,270 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 02:33:22,350 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 12 proven. 4 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2021-10-11 02:33:22,350 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-11 02:33:22,386 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1562096340] [2021-10-11 02:33:22,386 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-11 02:33:22,386 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2133429865] [2021-10-11 02:33:22,387 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: cannot handle proper monomial [2021-10-11 02:33:22,387 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [352234719] [2021-10-11 02:33:22,389 INFO L159 IcfgInterpreter]: Started Sifa with 32 locations of interest [2021-10-11 02:33:22,390 INFO L166 IcfgInterpreter]: Building call graph [2021-10-11 02:33:22,390 FATAL L? ?]: Ignoring exception! java.lang.IllegalArgumentException: Recursive programs are not supported. at de.uni_freiburg.informatik.ultimate.lib.sifa.CallGraph.topsortRelevant(CallGraph.java:132) at de.uni_freiburg.informatik.ultimate.lib.sifa.CallGraph.(CallGraph.java:97) at de.uni_freiburg.informatik.ultimate.lib.sifa.IcfgInterpreter.(IcfgInterpreter.java:92) at de.uni_freiburg.informatik.ultimate.plugins.sifa.SifaBuilder.construct(SifaBuilder.java:94) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.SifaRunner.(SifaRunner.java:98) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSifa.construct(IpTcStrategyModuleSifa.java:67) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:100) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:76) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:289) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:189) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:179) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:84) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:74) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:511) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:438) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:372) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopResult.iterate(CegarLoopResult.java:138) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterateNew(TraceAbstractionStarter.java:345) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:198) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:150) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-10-11 02:33:22,391 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:33:22,391 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [] total 0 [2021-10-11 02:33:22,391 ERROR L205 FreeRefinementEngine]: Strategy SIFA_TAIPAN failed to provide any proof altough trace is infeasible [2021-10-11 02:33:22,392 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2021-10-11 02:33:22,609 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable158 [2021-10-11 02:33:22,631 WARN L254 ceAbstractionStarter]: Unable to decide correctness. Please check the following counterexample manually. [2021-10-11 02:33:22,632 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.10 02:33:22 BoogieIcfgContainer [2021-10-11 02:33:22,632 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-11 02:33:22,632 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-11 02:33:22,633 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-11 02:33:22,633 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-11 02:33:22,633 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:33:09" (3/4) ... [2021-10-11 02:33:22,635 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-10-11 02:33:22,635 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-11 02:33:22,636 INFO L168 Benchmark]: Toolchain (without parser) took 14000.91 ms. Allocated memory was 134.2 MB in the beginning and 283.1 MB in the end (delta: 148.9 MB). Free memory was 105.1 MB in the beginning and 95.5 MB in the end (delta: 9.5 MB). Peak memory consumption was 158.4 MB. Max. memory is 16.1 GB. [2021-10-11 02:33:22,637 INFO L168 Benchmark]: CDTParser took 0.29 ms. Allocated memory is still 96.5 MB. Free memory is still 54.4 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 02:33:22,637 INFO L168 Benchmark]: CACSL2BoogieTranslator took 300.08 ms. Allocated memory is still 134.2 MB. Free memory was 105.0 MB in the beginning and 111.5 MB in the end (delta: -6.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-11 02:33:22,637 INFO L168 Benchmark]: Boogie Procedure Inliner took 36.00 ms. Allocated memory is still 134.2 MB. Free memory was 111.5 MB in the beginning and 110.1 MB in the end (delta: 1.5 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 02:33:22,638 INFO L168 Benchmark]: Boogie Preprocessor took 22.71 ms. Allocated memory is still 134.2 MB. Free memory was 110.1 MB in the beginning and 109.0 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-11 02:33:22,638 INFO L168 Benchmark]: RCFGBuilder took 633.71 ms. Allocated memory is still 134.2 MB. Free memory was 109.0 MB in the beginning and 87.0 MB in the end (delta: 22.0 MB). Peak memory consumption was 21.0 MB. Max. memory is 16.1 GB. [2021-10-11 02:33:22,639 INFO L168 Benchmark]: TraceAbstraction took 12994.24 ms. Allocated memory was 134.2 MB in the beginning and 283.1 MB in the end (delta: 148.9 MB). Free memory was 86.5 MB in the beginning and 95.5 MB in the end (delta: -9.1 MB). Peak memory consumption was 140.3 MB. Max. memory is 16.1 GB. [2021-10-11 02:33:22,639 INFO L168 Benchmark]: Witness Printer took 3.04 ms. Allocated memory is still 283.1 MB. Free memory is still 95.5 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 02:33:22,641 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29 ms. Allocated memory is still 96.5 MB. Free memory is still 54.4 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 300.08 ms. Allocated memory is still 134.2 MB. Free memory was 105.0 MB in the beginning and 111.5 MB in the end (delta: -6.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 36.00 ms. Allocated memory is still 134.2 MB. Free memory was 111.5 MB in the beginning and 110.1 MB in the end (delta: 1.5 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 22.71 ms. Allocated memory is still 134.2 MB. Free memory was 110.1 MB in the beginning and 109.0 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 633.71 ms. Allocated memory is still 134.2 MB. Free memory was 109.0 MB in the beginning and 87.0 MB in the end (delta: 22.0 MB). Peak memory consumption was 21.0 MB. Max. memory is 16.1 GB. * TraceAbstraction took 12994.24 ms. Allocated memory was 134.2 MB in the beginning and 283.1 MB in the end (delta: 148.9 MB). Free memory was 86.5 MB in the beginning and 95.5 MB in the end (delta: -9.1 MB). Peak memory consumption was 140.3 MB. Max. memory is 16.1 GB. * Witness Printer took 3.04 ms. Allocated memory is still 283.1 MB. Free memory is still 95.5 MB. There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 26]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: unable to decide satisfiability of path constraint. Possible FailurePath: [L34] int x = __VERIFIER_nondet_int(); [L35] COND FALSE !(x < 0) [L37] int y = __VERIFIER_nondet_int(); [L38] COND FALSE !(y < 0) [L40] int z = __VERIFIER_nondet_int(); [L41] int n = 0; [L41] COND TRUE n <= x [L42] int k = 0; [L42] COND TRUE k <= x [L43] COND TRUE k <= n [L30] CALL, EXPR fact(n) [L25] COND TRUE n <= 0 [L25] return 1; [L30] RET, EXPR fact(n) [L30] CALL, EXPR fact(k) [L25] COND TRUE n <= 0 [L25] return 1; [L30] RET, EXPR fact(k) [L30] EXPR n - k [L30] CALL, EXPR fact(n - k) [L25] COND TRUE n <= 0 [L25] return 1; [L30] RET, EXPR fact(n - k) [L30] EXPR fact(k) * fact(n - k) [L30] EXPR fact(n) / (fact(k) * fact(n - k)) [L30] return fact(n) / (fact(k) * fact(n - k)); [L42] k++ [L42] COND TRUE k <= x [L43] COND FALSE !(k <= n) [L30] CALL fact(n) [L25] COND FALSE !(n <= 0) [L26] EXPR n - 1 [L26] CALL, EXPR fact(n - 1) [L25] COND TRUE n <= 0 [L25] return 1; [L26] RET, EXPR fact(n - 1) [L26] n * fact(n - 1) - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 67 locations, 20 error locations. Started 1 CEGAR loops. VerificationResult: UNKNOWN, OverallTime: 12.8s, OverallIterations: 15, TraceHistogramMax: 5, AutomataDifference: 2.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1053 SDtfs, 1704 SDslu, 3270 SDs, 0 SdLazy, 1264 SolverSat, 302 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 588 GetRequests, 440 SyntacticMatches, 17 SemanticMatches, 131 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 576 ImplicationChecksByTransitivity, 4.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=356occurred in iteration=14, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.4s AutomataMinimizationTime, 14 MinimizatonAttempts, 522 StatesRemovedByMinimization, 11 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.0s InterpolantComputationTime, 323 NumberOfCodeBlocks, 323 NumberOfCodeBlocksAsserted, 13 NumberOfCheckSat, 522 ConstructedInterpolants, 0 QuantifiedInterpolants, 41802 SizeOfPredicates, 14 NumberOfNonLiveVariables, 584 ConjunctsInSsa, 28 ConjunctsInUnsatCore, 19 InterpolantComputations, 15 PerfectInterpolantSequences, 197/204 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: OVERALL_TIME[ms]: 1480, ICFG_INTERPRETER_ENTERED_PROCEDURES: 4, DAG_INTERPRETER_EARLY_EXIT_QUERIES_NONTRIVIAL: 55, DAG_INTERPRETER_EARLY_EXITS: 1, TOOLS_POST_APPLICATIONS: 60, TOOLS_POST_TIME[ms]: 178, TOOLS_POST_CALL_APPLICATIONS: 25, TOOLS_POST_CALL_TIME[ms]: 315, TOOLS_POST_RETURN_APPLICATIONS: 18, TOOLS_POST_RETURN_TIME[ms]: 158, TOOLS_QUANTIFIERELIM_APPLICATIONS: 103, TOOLS_QUANTIFIERELIM_TIME[ms]: 601, TOOLS_QUANTIFIERELIM_MAX_TIME[ms]: 43, FLUID_QUERY_TIME[ms]: 8, FLUID_QUERIES: 143, FLUID_YES_ANSWERS: 0, DOMAIN_JOIN_APPLICATIONS: 24, DOMAIN_JOIN_TIME[ms]: 665, DOMAIN_ALPHA_APPLICATIONS: 0, DOMAIN_ALPHA_TIME[ms]: 0, DOMAIN_WIDEN_APPLICATIONS: 0, DOMAIN_WIDEN_TIME[ms]: 0, DOMAIN_ISSUBSETEQ_APPLICATIONS: 1, DOMAIN_ISSUBSETEQ_TIME[ms]: 0, DOMAIN_ISBOTTOM_APPLICATIONS: 55, DOMAIN_ISBOTTOM_TIME[ms]: 70, LOOP_SUMMARIZER_APPLICATIONS: 1, LOOP_SUMMARIZER_CACHE_MISSES: 1, LOOP_SUMMARIZER_OVERALL_TIME[ms]: 127, LOOP_SUMMARIZER_NEW_COMPUTATION_TIME[ms]: 126, LOOP_SUMMARIZER_FIXPOINT_ITERATIONS: 1, CALL_SUMMARIZER_APPLICATIONS: 18, CALL_SUMMARIZER_CACHE_MISSES: 2, CALL_SUMMARIZER_OVERALL_TIME[ms]: 5, CALL_SUMMARIZER_NEW_COMPUTATION_TIME[ms]: 4, PROCEDURE_GRAPH_BUILDER_TIME[ms]: 5, PATH_EXPR_TIME[ms]: 5, REGEX_TO_DAG_TIME[ms]: 5, DAG_COMPRESSION_TIME[ms]: 28, DAG_COMPRESSION_PROCESSED_NODES: 900, DAG_COMPRESSION_RETAINED_NODES: 152, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request...