./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test4-3.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version aef121e0 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2377264c-b6e7-45dc-ab03-07f119fb7340/bin/utaipan-EQgc7hIp5V/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2377264c-b6e7-45dc-ab03-07f119fb7340/bin/utaipan-EQgc7hIp5V/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2377264c-b6e7-45dc-ab03-07f119fb7340/bin/utaipan-EQgc7hIp5V/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2377264c-b6e7-45dc-ab03-07f119fb7340/bin/utaipan-EQgc7hIp5V/config/TaipanReach.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test4-3.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2377264c-b6e7-45dc-ab03-07f119fb7340/bin/utaipan-EQgc7hIp5V/config/svcomp-Overflow-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2377264c-b6e7-45dc-ab03-07f119fb7340/bin/utaipan-EQgc7hIp5V --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash c24ad121bcc9573550d02da9627a07166858762ae4177dec26b10c884148a83b --- Real Ultimate output --- This is Ultimate 0.2.1-dev-aef121e [2021-11-23 02:30:01,366 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 02:30:01,368 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 02:30:01,424 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 02:30:01,425 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 02:30:01,431 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 02:30:01,433 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 02:30:01,437 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 02:30:01,440 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 02:30:01,448 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 02:30:01,449 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 02:30:01,451 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 02:30:01,451 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 02:30:01,455 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 02:30:01,458 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 02:30:01,464 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 02:30:01,465 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 02:30:01,466 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 02:30:01,468 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 02:30:01,475 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 02:30:01,477 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 02:30:01,480 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 02:30:01,483 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 02:30:01,484 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 02:30:01,490 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 02:30:01,491 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 02:30:01,492 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 02:30:01,494 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 02:30:01,495 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 02:30:01,496 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 02:30:01,497 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 02:30:01,498 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 02:30:01,500 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 02:30:01,502 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 02:30:01,503 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 02:30:01,504 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 02:30:01,504 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 02:30:01,505 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 02:30:01,505 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 02:30:01,506 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 02:30:01,506 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 02:30:01,508 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2377264c-b6e7-45dc-ab03-07f119fb7340/bin/utaipan-EQgc7hIp5V/config/svcomp-Overflow-32bit-Taipan_Default.epf [2021-11-23 02:30:01,555 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 02:30:01,558 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 02:30:01,558 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-23 02:30:01,559 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-23 02:30:01,566 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 02:30:01,566 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-23 02:30:01,566 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-23 02:30:01,567 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-23 02:30:01,567 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-23 02:30:01,567 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-23 02:30:01,568 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-23 02:30:01,569 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-23 02:30:01,569 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-23 02:30:01,569 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-23 02:30:01,569 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-23 02:30:01,570 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-23 02:30:01,570 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-23 02:30:01,570 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-23 02:30:01,571 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 02:30:01,572 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 02:30:01,572 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-23 02:30:01,572 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 02:30:01,572 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 02:30:01,573 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 02:30:01,573 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 02:30:01,573 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 02:30:01,575 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 02:30:01,575 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2021-11-23 02:30:01,576 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 02:30:01,576 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 02:30:01,576 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 02:30:01,576 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 02:30:01,577 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 02:30:01,577 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-23 02:30:01,577 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 02:30:01,577 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 02:30:01,578 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 02:30:01,578 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 02:30:01,578 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-23 02:30:01,578 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-23 02:30:01,579 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 02:30:01,579 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-23 02:30:01,579 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-23 02:30:01,579 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_2377264c-b6e7-45dc-ab03-07f119fb7340/bin/utaipan-EQgc7hIp5V/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2377264c-b6e7-45dc-ab03-07f119fb7340/bin/utaipan-EQgc7hIp5V Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c24ad121bcc9573550d02da9627a07166858762ae4177dec26b10c884148a83b [2021-11-23 02:30:01,848 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 02:30:01,869 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 02:30:01,871 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 02:30:01,873 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 02:30:01,873 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 02:30:01,875 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2377264c-b6e7-45dc-ab03-07f119fb7340/bin/utaipan-EQgc7hIp5V/../../sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test4-3.i [2021-11-23 02:30:01,940 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2377264c-b6e7-45dc-ab03-07f119fb7340/bin/utaipan-EQgc7hIp5V/data/4bb3aa409/69070084ed9f4d5db4e181fffd5aeaa6/FLAGc5880d44a [2021-11-23 02:30:02,565 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 02:30:02,565 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2377264c-b6e7-45dc-ab03-07f119fb7340/sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test4-3.i [2021-11-23 02:30:02,582 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2377264c-b6e7-45dc-ab03-07f119fb7340/bin/utaipan-EQgc7hIp5V/data/4bb3aa409/69070084ed9f4d5db4e181fffd5aeaa6/FLAGc5880d44a [2021-11-23 02:30:02,763 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2377264c-b6e7-45dc-ab03-07f119fb7340/bin/utaipan-EQgc7hIp5V/data/4bb3aa409/69070084ed9f4d5db4e181fffd5aeaa6 [2021-11-23 02:30:02,765 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 02:30:02,766 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 02:30:02,770 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 02:30:02,771 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 02:30:02,775 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 02:30:02,776 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:30:02" (1/1) ... [2021-11-23 02:30:02,778 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@10fa73da and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:30:02, skipping insertion in model container [2021-11-23 02:30:02,778 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:30:02" (1/1) ... [2021-11-23 02:30:02,787 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 02:30:02,848 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 02:30:03,372 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2377264c-b6e7-45dc-ab03-07f119fb7340/sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test4-3.i[33021,33034] [2021-11-23 02:30:03,577 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 02:30:03,600 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 02:30:03,664 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2377264c-b6e7-45dc-ab03-07f119fb7340/sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test4-3.i[33021,33034] [2021-11-23 02:30:03,756 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 02:30:03,792 INFO L208 MainTranslator]: Completed translation [2021-11-23 02:30:03,792 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:30:03 WrapperNode [2021-11-23 02:30:03,792 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 02:30:03,794 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 02:30:03,794 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 02:30:03,794 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 02:30:03,802 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:30:03" (1/1) ... [2021-11-23 02:30:03,835 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:30:03" (1/1) ... [2021-11-23 02:30:03,935 INFO L137 Inliner]: procedures = 177, calls = 448, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 1451 [2021-11-23 02:30:03,936 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 02:30:03,937 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 02:30:03,937 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 02:30:03,937 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 02:30:03,945 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:30:03" (1/1) ... [2021-11-23 02:30:03,946 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:30:03" (1/1) ... [2021-11-23 02:30:03,957 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:30:03" (1/1) ... [2021-11-23 02:30:03,958 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:30:03" (1/1) ... [2021-11-23 02:30:04,026 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:30:03" (1/1) ... [2021-11-23 02:30:04,043 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:30:03" (1/1) ... [2021-11-23 02:30:04,048 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:30:03" (1/1) ... [2021-11-23 02:30:04,063 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 02:30:04,064 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 02:30:04,064 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 02:30:04,064 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 02:30:04,065 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:30:03" (1/1) ... [2021-11-23 02:30:04,073 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 02:30:04,086 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2377264c-b6e7-45dc-ab03-07f119fb7340/bin/utaipan-EQgc7hIp5V/z3 [2021-11-23 02:30:04,116 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2377264c-b6e7-45dc-ab03-07f119fb7340/bin/utaipan-EQgc7hIp5V/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-23 02:30:04,143 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2377264c-b6e7-45dc-ab03-07f119fb7340/bin/utaipan-EQgc7hIp5V/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-23 02:30:04,161 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-23 02:30:04,161 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-11-23 02:30:04,161 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-11-23 02:30:04,161 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-23 02:30:04,161 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-11-23 02:30:04,162 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-11-23 02:30:04,162 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-23 02:30:04,162 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 02:30:04,162 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-23 02:30:04,162 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-23 02:30:04,162 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-23 02:30:04,162 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-23 02:30:04,162 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-23 02:30:04,163 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 02:30:04,163 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 02:30:04,414 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 02:30:04,416 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 02:30:05,758 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 02:30:06,317 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-23 02:30:06,317 INFO L301 CfgBuilder]: Removed 77 assume(true) statements. [2021-11-23 02:30:06,323 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:30:06 BoogieIcfgContainer [2021-11-23 02:30:06,323 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-23 02:30:06,325 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-23 02:30:06,325 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-23 02:30:06,329 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-23 02:30:06,330 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 02:30:02" (1/3) ... [2021-11-23 02:30:06,331 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@56eb45a4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:30:06, skipping insertion in model container [2021-11-23 02:30:06,332 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:30:03" (2/3) ... [2021-11-23 02:30:06,332 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@56eb45a4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:30:06, skipping insertion in model container [2021-11-23 02:30:06,332 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:30:06" (3/3) ... [2021-11-23 02:30:06,337 INFO L111 eAbstractionObserver]: Analyzing ICFG uthash_SFH_test4-3.i [2021-11-23 02:30:06,343 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-23 02:30:06,343 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2021-11-23 02:30:06,397 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-23 02:30:06,402 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-23 02:30:06,403 INFO L340 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2021-11-23 02:30:06,421 INFO L276 IsEmpty]: Start isEmpty. Operand has 161 states, 136 states have (on average 1.8088235294117647) internal successors, (246), 152 states have internal predecessors, (246), 16 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 7 states have call predecessors, (16), 16 states have call successors, (16) [2021-11-23 02:30:06,423 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2021-11-23 02:30:06,423 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:30:06,424 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1] [2021-11-23 02:30:06,424 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-11-23 02:30:06,429 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:30:06,429 INFO L85 PathProgramCache]: Analyzing trace with hash 1114569, now seen corresponding path program 1 times [2021-11-23 02:30:06,439 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:30:06,439 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2047721142] [2021-11-23 02:30:06,440 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:30:06,440 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:30:06,567 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-23 02:30:06,568 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [777563866] [2021-11-23 02:30:06,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:30:06,569 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 02:30:06,569 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2377264c-b6e7-45dc-ab03-07f119fb7340/bin/utaipan-EQgc7hIp5V/z3 [2021-11-23 02:30:06,571 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2377264c-b6e7-45dc-ab03-07f119fb7340/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 02:30:06,593 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2377264c-b6e7-45dc-ab03-07f119fb7340/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-23 02:30:06,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:30:06,815 INFO L263 TraceCheckSpWp]: Trace formula consists of 47 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-23 02:30:06,821 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 02:30:06,855 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 02:30:06,855 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-23 02:30:06,856 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:30:06,856 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2047721142] [2021-11-23 02:30:06,856 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-23 02:30:06,857 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [777563866] [2021-11-23 02:30:06,858 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [777563866] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:30:06,858 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:30:06,859 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-11-23 02:30:06,861 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [893262556] [2021-11-23 02:30:06,862 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:30:06,867 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 02:30:06,868 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:30:06,910 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 02:30:06,910 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 02:30:06,915 INFO L87 Difference]: Start difference. First operand has 161 states, 136 states have (on average 1.8088235294117647) internal successors, (246), 152 states have internal predecessors, (246), 16 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 7 states have call predecessors, (16), 16 states have call successors, (16) Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 02:30:10,768 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.58s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-23 02:30:10,940 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:30:10,940 INFO L93 Difference]: Finished difference Result 420 states and 734 transitions. [2021-11-23 02:30:10,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 02:30:10,946 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3 [2021-11-23 02:30:10,946 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:30:10,958 INFO L225 Difference]: With dead ends: 420 [2021-11-23 02:30:10,958 INFO L226 Difference]: Without dead ends: 233 [2021-11-23 02:30:10,962 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 02:30:10,966 INFO L933 BasicCegarLoop]: 189 mSDtfsCounter, 102 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 69 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 108 SdHoareTripleChecker+Valid, 357 SdHoareTripleChecker+Invalid, 70 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 69 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2021-11-23 02:30:10,967 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [108 Valid, 357 Invalid, 70 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 69 Invalid, 0 Unknown, 0 Unchecked, 3.9s Time] [2021-11-23 02:30:10,986 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 233 states. [2021-11-23 02:30:11,019 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 233 to 135. [2021-11-23 02:30:11,020 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 135 states, 112 states have (on average 1.2410714285714286) internal successors, (139), 126 states have internal predecessors, (139), 16 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 7 states have call predecessors, (16), 16 states have call successors, (16) [2021-11-23 02:30:11,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 135 states to 135 states and 171 transitions. [2021-11-23 02:30:11,024 INFO L78 Accepts]: Start accepts. Automaton has 135 states and 171 transitions. Word has length 3 [2021-11-23 02:30:11,024 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:30:11,024 INFO L470 AbstractCegarLoop]: Abstraction has 135 states and 171 transitions. [2021-11-23 02:30:11,025 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 02:30:11,025 INFO L276 IsEmpty]: Start isEmpty. Operand 135 states and 171 transitions. [2021-11-23 02:30:11,028 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2021-11-23 02:30:11,028 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:30:11,029 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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] [2021-11-23 02:30:11,054 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2377264c-b6e7-45dc-ab03-07f119fb7340/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-11-23 02:30:11,235 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2377264c-b6e7-45dc-ab03-07f119fb7340/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2021-11-23 02:30:11,235 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-11-23 02:30:11,236 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:30:11,236 INFO L85 PathProgramCache]: Analyzing trace with hash 1598010711, now seen corresponding path program 1 times [2021-11-23 02:30:11,236 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:30:11,236 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2133025340] [2021-11-23 02:30:11,237 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:30:11,237 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:30:11,266 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-23 02:30:11,267 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [69293365] [2021-11-23 02:30:11,267 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:30:11,267 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 02:30:11,268 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2377264c-b6e7-45dc-ab03-07f119fb7340/bin/utaipan-EQgc7hIp5V/z3 [2021-11-23 02:30:11,269 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2377264c-b6e7-45dc-ab03-07f119fb7340/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 02:30:11,285 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2377264c-b6e7-45dc-ab03-07f119fb7340/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-23 02:30:11,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:30:11,556 INFO L263 TraceCheckSpWp]: Trace formula consists of 226 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-23 02:30:11,563 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 02:30:11,773 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 02:30:11,774 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-23 02:30:11,774 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:30:11,774 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2133025340] [2021-11-23 02:30:11,774 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-23 02:30:11,775 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [69293365] [2021-11-23 02:30:11,775 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [69293365] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:30:11,775 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:30:11,775 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-23 02:30:11,776 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [397825547] [2021-11-23 02:30:11,776 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:30:11,777 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-23 02:30:11,777 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:30:11,777 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-23 02:30:11,778 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-23 02:30:11,778 INFO L87 Difference]: Start difference. First operand 135 states and 171 transitions. Second operand has 4 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 02:30:15,191 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:30:15,192 INFO L93 Difference]: Finished difference Result 233 states and 285 transitions. [2021-11-23 02:30:15,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-23 02:30:15,198 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 48 [2021-11-23 02:30:15,199 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:30:15,201 INFO L225 Difference]: With dead ends: 233 [2021-11-23 02:30:15,202 INFO L226 Difference]: Without dead ends: 232 [2021-11-23 02:30:15,202 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-23 02:30:15,204 INFO L933 BasicCegarLoop]: 159 mSDtfsCounter, 59 mSDsluCounter, 339 mSDsCounter, 0 mSdLazyCounter, 78 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 463 SdHoareTripleChecker+Invalid, 79 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 78 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2021-11-23 02:30:15,204 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [65 Valid, 463 Invalid, 79 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 78 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2021-11-23 02:30:15,205 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 232 states. [2021-11-23 02:30:15,247 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 232 to 230. [2021-11-23 02:30:15,248 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 230 states, 201 states have (on average 1.1840796019900497) internal successors, (238), 215 states have internal predecessors, (238), 22 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (22), 13 states have call predecessors, (22), 22 states have call successors, (22) [2021-11-23 02:30:15,251 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 230 states to 230 states and 282 transitions. [2021-11-23 02:30:15,251 INFO L78 Accepts]: Start accepts. Automaton has 230 states and 282 transitions. Word has length 48 [2021-11-23 02:30:15,251 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:30:15,252 INFO L470 AbstractCegarLoop]: Abstraction has 230 states and 282 transitions. [2021-11-23 02:30:15,252 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 02:30:15,252 INFO L276 IsEmpty]: Start isEmpty. Operand 230 states and 282 transitions. [2021-11-23 02:30:15,254 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2021-11-23 02:30:15,254 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:30:15,255 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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] [2021-11-23 02:30:15,291 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2377264c-b6e7-45dc-ab03-07f119fb7340/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-11-23 02:30:15,463 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2377264c-b6e7-45dc-ab03-07f119fb7340/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 02:30:15,463 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-11-23 02:30:15,464 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:30:15,464 INFO L85 PathProgramCache]: Analyzing trace with hash -2001274746, now seen corresponding path program 1 times [2021-11-23 02:30:15,464 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:30:15,464 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1791473392] [2021-11-23 02:30:15,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:30:15,465 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:30:15,487 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-23 02:30:15,487 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1555066004] [2021-11-23 02:30:15,487 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:30:15,488 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 02:30:15,488 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2377264c-b6e7-45dc-ab03-07f119fb7340/bin/utaipan-EQgc7hIp5V/z3 [2021-11-23 02:30:15,489 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2377264c-b6e7-45dc-ab03-07f119fb7340/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 02:30:15,505 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2377264c-b6e7-45dc-ab03-07f119fb7340/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-11-23 02:30:15,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:30:15,756 INFO L263 TraceCheckSpWp]: Trace formula consists of 227 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-23 02:30:15,761 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 02:30:15,955 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 02:30:15,955 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-23 02:30:15,956 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:30:15,956 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1791473392] [2021-11-23 02:30:15,956 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-23 02:30:15,956 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1555066004] [2021-11-23 02:30:15,957 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1555066004] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:30:15,957 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:30:15,957 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-23 02:30:15,957 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [848069748] [2021-11-23 02:30:15,957 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:30:15,958 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-23 02:30:15,958 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:30:15,959 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-23 02:30:15,959 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-23 02:30:15,959 INFO L87 Difference]: Start difference. First operand 230 states and 282 transitions. Second operand has 4 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 02:30:18,032 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.16s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-23 02:30:18,531 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:30:18,531 INFO L93 Difference]: Finished difference Result 230 states and 282 transitions. [2021-11-23 02:30:18,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-23 02:30:18,534 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 49 [2021-11-23 02:30:18,535 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:30:18,537 INFO L225 Difference]: With dead ends: 230 [2021-11-23 02:30:18,537 INFO L226 Difference]: Without dead ends: 229 [2021-11-23 02:30:18,538 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-23 02:30:18,539 INFO L933 BasicCegarLoop]: 143 mSDtfsCounter, 86 mSDsluCounter, 178 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 102 SdHoareTripleChecker+Valid, 304 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2021-11-23 02:30:18,540 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [102 Valid, 304 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2021-11-23 02:30:18,541 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 229 states. [2021-11-23 02:30:18,562 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 229 to 229. [2021-11-23 02:30:18,562 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 229 states, 201 states have (on average 1.1791044776119404) internal successors, (237), 214 states have internal predecessors, (237), 22 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (22), 13 states have call predecessors, (22), 22 states have call successors, (22) [2021-11-23 02:30:18,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 229 states to 229 states and 281 transitions. [2021-11-23 02:30:18,565 INFO L78 Accepts]: Start accepts. Automaton has 229 states and 281 transitions. Word has length 49 [2021-11-23 02:30:18,565 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:30:18,566 INFO L470 AbstractCegarLoop]: Abstraction has 229 states and 281 transitions. [2021-11-23 02:30:18,566 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 02:30:18,566 INFO L276 IsEmpty]: Start isEmpty. Operand 229 states and 281 transitions. [2021-11-23 02:30:18,568 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2021-11-23 02:30:18,568 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:30:18,569 INFO L514 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 02:30:18,595 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2377264c-b6e7-45dc-ab03-07f119fb7340/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-11-23 02:30:18,782 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2377264c-b6e7-45dc-ab03-07f119fb7340/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 02:30:18,783 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-11-23 02:30:18,783 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:30:18,784 INFO L85 PathProgramCache]: Analyzing trace with hash 920356912, now seen corresponding path program 1 times [2021-11-23 02:30:18,784 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:30:18,784 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1845718183] [2021-11-23 02:30:18,784 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:30:18,784 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:30:18,803 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-23 02:30:18,804 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [234132524] [2021-11-23 02:30:18,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:30:18,804 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 02:30:18,805 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2377264c-b6e7-45dc-ab03-07f119fb7340/bin/utaipan-EQgc7hIp5V/z3 [2021-11-23 02:30:18,806 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2377264c-b6e7-45dc-ab03-07f119fb7340/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 02:30:18,842 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2377264c-b6e7-45dc-ab03-07f119fb7340/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-11-23 02:30:19,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:30:19,115 INFO L263 TraceCheckSpWp]: Trace formula consists of 243 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-23 02:30:19,126 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 02:30:19,388 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 02:30:19,389 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-23 02:30:19,389 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:30:19,390 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1845718183] [2021-11-23 02:30:19,390 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-23 02:30:19,394 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [234132524] [2021-11-23 02:30:19,394 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [234132524] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:30:19,394 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:30:19,394 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-23 02:30:19,396 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1786465738] [2021-11-23 02:30:19,396 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:30:19,397 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 02:30:19,398 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:30:19,399 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 02:30:19,404 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 02:30:19,405 INFO L87 Difference]: Start difference. First operand 229 states and 281 transitions. Second operand has 3 states, 3 states have (on average 17.0) internal successors, (51), 2 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 02:30:21,704 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:30:21,705 INFO L93 Difference]: Finished difference Result 384 states and 476 transitions. [2021-11-23 02:30:21,709 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 02:30:21,709 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 2 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 51 [2021-11-23 02:30:21,710 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:30:21,712 INFO L225 Difference]: With dead ends: 384 [2021-11-23 02:30:21,712 INFO L226 Difference]: Without dead ends: 227 [2021-11-23 02:30:21,715 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 02:30:21,717 INFO L933 BasicCegarLoop]: 152 mSDtfsCounter, 38 mSDsluCounter, 152 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 289 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2021-11-23 02:30:21,718 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [43 Valid, 289 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2021-11-23 02:30:21,719 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 227 states. [2021-11-23 02:30:21,740 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 227 to 227. [2021-11-23 02:30:21,741 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 227 states, 199 states have (on average 1.1758793969849246) internal successors, (234), 212 states have internal predecessors, (234), 22 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (22), 13 states have call predecessors, (22), 22 states have call successors, (22) [2021-11-23 02:30:21,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 227 states to 227 states and 278 transitions. [2021-11-23 02:30:21,743 INFO L78 Accepts]: Start accepts. Automaton has 227 states and 278 transitions. Word has length 51 [2021-11-23 02:30:21,744 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:30:21,744 INFO L470 AbstractCegarLoop]: Abstraction has 227 states and 278 transitions. [2021-11-23 02:30:21,744 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 2 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 02:30:21,745 INFO L276 IsEmpty]: Start isEmpty. Operand 227 states and 278 transitions. [2021-11-23 02:30:21,747 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2021-11-23 02:30:21,747 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:30:21,748 INFO L514 BasicCegarLoop]: trace histogram [2, 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, 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] [2021-11-23 02:30:21,786 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2377264c-b6e7-45dc-ab03-07f119fb7340/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-11-23 02:30:21,974 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2377264c-b6e7-45dc-ab03-07f119fb7340/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 02:30:21,975 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-11-23 02:30:21,975 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:30:21,975 INFO L85 PathProgramCache]: Analyzing trace with hash -1681483749, now seen corresponding path program 1 times [2021-11-23 02:30:21,976 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:30:21,976 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1819569578] [2021-11-23 02:30:21,976 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:30:21,976 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:30:22,026 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-23 02:30:22,026 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1510735398] [2021-11-23 02:30:22,027 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:30:22,027 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 02:30:22,027 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2377264c-b6e7-45dc-ab03-07f119fb7340/bin/utaipan-EQgc7hIp5V/z3 [2021-11-23 02:30:22,043 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2377264c-b6e7-45dc-ab03-07f119fb7340/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 02:30:22,064 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2377264c-b6e7-45dc-ab03-07f119fb7340/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-11-23 02:30:22,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:30:22,334 INFO L263 TraceCheckSpWp]: Trace formula consists of 348 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-23 02:30:22,345 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 02:30:22,512 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-23 02:30:22,512 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-23 02:30:22,512 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:30:22,513 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1819569578] [2021-11-23 02:30:22,513 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-23 02:30:22,513 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1510735398] [2021-11-23 02:30:22,513 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1510735398] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:30:22,513 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:30:22,514 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-23 02:30:22,514 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1746179046] [2021-11-23 02:30:22,514 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:30:22,514 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 02:30:22,516 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:30:22,516 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 02:30:22,516 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 02:30:22,517 INFO L87 Difference]: Start difference. First operand 227 states and 278 transitions. Second operand has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 2 states have internal predecessors, (58), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-11-23 02:30:24,316 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:30:24,316 INFO L93 Difference]: Finished difference Result 426 states and 524 transitions. [2021-11-23 02:30:24,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 02:30:24,325 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 2 states have internal predecessors, (58), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 64 [2021-11-23 02:30:24,326 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:30:24,327 INFO L225 Difference]: With dead ends: 426 [2021-11-23 02:30:24,327 INFO L226 Difference]: Without dead ends: 225 [2021-11-23 02:30:24,328 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 02:30:24,329 INFO L933 BasicCegarLoop]: 149 mSDtfsCounter, 11 mSDsluCounter, 153 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 286 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2021-11-23 02:30:24,330 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [13 Valid, 286 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2021-11-23 02:30:24,331 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 225 states. [2021-11-23 02:30:24,343 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 225 to 225. [2021-11-23 02:30:24,344 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 225 states, 197 states have (on average 1.1725888324873097) internal successors, (231), 210 states have internal predecessors, (231), 22 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (22), 13 states have call predecessors, (22), 22 states have call successors, (22) [2021-11-23 02:30:24,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 225 states to 225 states and 275 transitions. [2021-11-23 02:30:24,346 INFO L78 Accepts]: Start accepts. Automaton has 225 states and 275 transitions. Word has length 64 [2021-11-23 02:30:24,346 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:30:24,347 INFO L470 AbstractCegarLoop]: Abstraction has 225 states and 275 transitions. [2021-11-23 02:30:24,347 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 2 states have internal predecessors, (58), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-11-23 02:30:24,347 INFO L276 IsEmpty]: Start isEmpty. Operand 225 states and 275 transitions. [2021-11-23 02:30:24,350 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2021-11-23 02:30:24,350 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:30:24,350 INFO L514 BasicCegarLoop]: trace histogram [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, 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, 1, 1, 1] [2021-11-23 02:30:24,384 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2377264c-b6e7-45dc-ab03-07f119fb7340/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2021-11-23 02:30:24,576 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2377264c-b6e7-45dc-ab03-07f119fb7340/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 02:30:24,576 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-11-23 02:30:24,577 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:30:24,577 INFO L85 PathProgramCache]: Analyzing trace with hash 1167209906, now seen corresponding path program 1 times [2021-11-23 02:30:24,577 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:30:24,577 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1583936413] [2021-11-23 02:30:24,577 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:30:24,577 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:30:24,611 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-23 02:30:24,614 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [242649418] [2021-11-23 02:30:24,615 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:30:24,617 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 02:30:24,618 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2377264c-b6e7-45dc-ab03-07f119fb7340/bin/utaipan-EQgc7hIp5V/z3 [2021-11-23 02:30:24,619 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2377264c-b6e7-45dc-ab03-07f119fb7340/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 02:30:24,634 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2377264c-b6e7-45dc-ab03-07f119fb7340/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-11-23 02:30:25,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:30:25,209 INFO L263 TraceCheckSpWp]: Trace formula consists of 453 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-23 02:30:25,213 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 02:30:25,365 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-23 02:30:25,365 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-23 02:30:25,365 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:30:25,365 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1583936413] [2021-11-23 02:30:25,366 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-23 02:30:25,366 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [242649418] [2021-11-23 02:30:25,366 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [242649418] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:30:25,366 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:30:25,366 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-23 02:30:25,367 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [76092795] [2021-11-23 02:30:25,367 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:30:25,367 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-23 02:30:25,367 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:30:25,368 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-23 02:30:25,368 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-23 02:30:25,368 INFO L87 Difference]: Start difference. First operand 225 states and 275 transitions. Second operand has 4 states, 3 states have (on average 22.333333333333332) internal successors, (67), 4 states have internal predecessors, (67), 2 states have call successors, (4), 2 states have call predecessors, (4), 3 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2021-11-23 02:30:29,954 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-23 02:30:29,954 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:30:29,954 INFO L93 Difference]: Finished difference Result 432 states and 542 transitions. [2021-11-23 02:30:29,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-23 02:30:29,967 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 22.333333333333332) internal successors, (67), 4 states have internal predecessors, (67), 2 states have call successors, (4), 2 states have call predecessors, (4), 3 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 77 [2021-11-23 02:30:29,968 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:30:29,972 INFO L225 Difference]: With dead ends: 432 [2021-11-23 02:30:29,972 INFO L226 Difference]: Without dead ends: 227 [2021-11-23 02:30:29,973 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 74 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-23 02:30:29,974 INFO L933 BasicCegarLoop]: 147 mSDtfsCounter, 1 mSDsluCounter, 321 mSDsCounter, 0 mSdLazyCounter, 68 mSolverCounterSat, 3 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 434 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 68 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time [2021-11-23 02:30:29,974 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1 Valid, 434 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 68 Invalid, 1 Unknown, 0 Unchecked, 4.6s Time] [2021-11-23 02:30:29,975 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 227 states. [2021-11-23 02:30:29,989 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 227 to 227. [2021-11-23 02:30:29,990 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 227 states, 198 states have (on average 1.1767676767676767) internal successors, (233), 212 states have internal predecessors, (233), 22 states have call successors, (22), 2 states have call predecessors, (22), 3 states have return successors, (26), 13 states have call predecessors, (26), 22 states have call successors, (26) [2021-11-23 02:30:29,992 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 227 states to 227 states and 281 transitions. [2021-11-23 02:30:29,992 INFO L78 Accepts]: Start accepts. Automaton has 227 states and 281 transitions. Word has length 77 [2021-11-23 02:30:29,993 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:30:29,993 INFO L470 AbstractCegarLoop]: Abstraction has 227 states and 281 transitions. [2021-11-23 02:30:29,993 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 22.333333333333332) internal successors, (67), 4 states have internal predecessors, (67), 2 states have call successors, (4), 2 states have call predecessors, (4), 3 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2021-11-23 02:30:29,993 INFO L276 IsEmpty]: Start isEmpty. Operand 227 states and 281 transitions. [2021-11-23 02:30:29,997 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2021-11-23 02:30:29,997 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:30:29,997 INFO L514 BasicCegarLoop]: trace histogram [4, 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, 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, 1, 1, 1] [2021-11-23 02:30:30,023 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2377264c-b6e7-45dc-ab03-07f119fb7340/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2021-11-23 02:30:30,206 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2377264c-b6e7-45dc-ab03-07f119fb7340/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 02:30:30,207 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-11-23 02:30:30,207 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:30:30,207 INFO L85 PathProgramCache]: Analyzing trace with hash -872916030, now seen corresponding path program 1 times [2021-11-23 02:30:30,207 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:30:30,208 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1794858569] [2021-11-23 02:30:30,208 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:30:30,208 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:30:30,220 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-23 02:30:30,220 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1200654846] [2021-11-23 02:30:30,220 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:30:30,221 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 02:30:30,223 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2377264c-b6e7-45dc-ab03-07f119fb7340/bin/utaipan-EQgc7hIp5V/z3 [2021-11-23 02:30:30,224 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2377264c-b6e7-45dc-ab03-07f119fb7340/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 02:30:30,227 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2377264c-b6e7-45dc-ab03-07f119fb7340/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2021-11-23 02:30:31,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:30:31,653 INFO L263 TraceCheckSpWp]: Trace formula consists of 477 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-23 02:30:31,656 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 02:30:31,820 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 20 proven. 1 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2021-11-23 02:30:31,820 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 02:30:32,052 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 2 proven. 16 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-11-23 02:30:32,055 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:30:32,055 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1794858569] [2021-11-23 02:30:32,056 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-23 02:30:32,056 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1200654846] [2021-11-23 02:30:32,056 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1200654846] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-23 02:30:32,056 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2077597625] [2021-11-23 02:30:32,088 INFO L159 IcfgInterpreter]: Started Sifa with 67 locations of interest [2021-11-23 02:30:32,088 INFO L166 IcfgInterpreter]: Building call graph [2021-11-23 02:30:32,092 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-23 02:30:32,098 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-23 02:30:32,098 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-23 02:30:32,475 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-23 02:30:32,506 INFO L354 Elim1Store]: treesize reduction 20, result has 48.7 percent of original size [2021-11-23 02:30:32,510 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 30 [2021-11-23 02:30:32,525 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-23 02:30:32,546 INFO L354 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2021-11-23 02:30:32,547 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 32 [2021-11-23 02:30:32,589 INFO L354 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2021-11-23 02:30:32,590 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 27 treesize of output 41 [2021-11-23 02:30:32,645 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:30:32,647 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 42 [2021-11-23 02:30:32,675 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2021-11-23 02:30:32,684 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2021-11-23 02:30:33,046 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:30:33,047 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:30:33,048 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:30:33,052 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 19 [2021-11-23 02:30:33,072 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:30:33,073 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:30:33,074 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:30:33,076 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 19 [2021-11-23 02:30:33,106 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:30:33,107 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:30:33,108 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:30:33,109 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:30:33,110 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:30:33,111 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:30:33,112 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:30:33,114 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 70 treesize of output 67 [2021-11-23 02:30:33,151 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:30:33,152 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:30:33,153 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:30:33,154 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:30:33,154 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:30:33,155 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:30:33,156 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:30:33,158 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 55 treesize of output 66 [2021-11-23 02:30:33,198 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:30:33,199 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:30:33,200 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:30:33,200 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:30:33,201 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:30:33,202 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:30:33,203 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:30:33,204 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:30:33,205 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:30:33,206 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:30:33,207 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:30:33,209 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 14 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 89 treesize of output 88 [2021-11-23 02:30:33,226 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:30:33,227 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:30:33,228 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:30:33,229 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:30:33,230 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:30:33,231 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:30:33,232 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:30:33,233 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:30:33,234 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:30:33,235 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:30:33,236 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:30:33,239 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 14 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 70 treesize of output 69 [2021-11-23 02:30:33,255 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:30:33,256 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:30:33,257 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:30:33,258 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 31 [2021-11-23 02:30:33,282 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:30:33,283 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:30:33,284 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:30:33,285 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 31 [2021-11-23 02:30:33,325 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:30:33,326 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:30:33,327 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:30:33,328 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:30:33,329 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:30:33,330 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:30:33,336 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 9 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 46 [2021-11-23 02:30:33,356 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:30:33,357 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:30:33,358 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:30:33,359 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:30:33,360 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:30:33,361 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:30:33,362 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 9 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 100 treesize of output 105 [2021-11-23 02:30:33,443 INFO L354 Elim1Store]: treesize reduction 130, result has 28.2 percent of original size [2021-11-23 02:30:33,444 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 117 treesize of output 150 [2021-11-23 02:30:33,489 INFO L354 Elim1Store]: treesize reduction 78, result has 17.0 percent of original size [2021-11-23 02:30:33,490 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 135 treesize of output 143 [2021-11-23 02:30:33,516 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:30:33,517 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:30:33,518 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:30:33,519 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:30:33,520 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:30:33,521 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:30:33,523 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:30:33,524 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:30:33,525 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:30:33,526 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:30:33,527 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:30:33,528 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 14 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 70 treesize of output 69 [2021-11-23 02:30:33,621 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-23 02:30:33,625 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-23 02:30:33,631 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-23 02:30:33,677 INFO L354 Elim1Store]: treesize reduction 19, result has 36.7 percent of original size [2021-11-23 02:30:33,678 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 85 treesize of output 88 [2021-11-23 02:30:33,706 INFO L354 Elim1Store]: treesize reduction 21, result has 34.4 percent of original size [2021-11-23 02:30:33,707 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 88 treesize of output 91 [2021-11-23 02:30:33,730 INFO L354 Elim1Store]: treesize reduction 19, result has 36.7 percent of original size [2021-11-23 02:30:33,731 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 91 treesize of output 94 [2021-11-23 02:30:33,776 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2021-11-23 02:30:33,781 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2021-11-23 02:30:33,787 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2021-11-23 02:30:33,851 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:30:33,852 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:30:33,853 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:30:33,853 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:30:33,854 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:30:33,855 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:30:33,856 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 9 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 16 [2021-11-23 02:30:33,873 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:30:33,875 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:30:33,876 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:30:33,876 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:30:33,877 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:30:33,878 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:30:33,879 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:30:33,880 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 10 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 51 treesize of output 21 [2021-11-23 02:30:33,897 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:30:33,897 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:30:33,898 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:30:33,899 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:30:33,901 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:30:33,902 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:30:33,903 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 9 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 108 treesize of output 42 [2021-11-23 02:30:34,061 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:30:34,062 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:30:34,063 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:30:34,064 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:30:34,065 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:30:34,065 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:30:34,066 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 9 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 16 [2021-11-23 02:30:34,079 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:30:34,080 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:30:34,081 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:30:34,082 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:30:34,083 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:30:34,084 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:30:34,085 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 9 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 108 treesize of output 42 [2021-11-23 02:30:34,103 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:30:34,104 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:30:34,105 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:30:34,106 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:30:34,107 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:30:34,108 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:30:34,109 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:30:34,110 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 11 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 51 treesize of output 21 [2021-11-23 02:30:42,510 WARN L227 SmtUtils]: Spent 8.30s on a formula simplification. DAG size of input: 66 DAG size of output: 32 (called from [L 351] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2021-11-23 02:30:42,511 INFO L354 Elim1Store]: treesize reduction 348, result has 15.7 percent of original size [2021-11-23 02:30:42,512 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 2853 treesize of output 2330 [2021-11-23 02:30:42,551 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:30:54,490 WARN L227 SmtUtils]: Spent 11.94s on a formula simplification. DAG size of input: 90 DAG size of output: 46 (called from [L 351] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2021-11-23 02:30:54,491 INFO L354 Elim1Store]: treesize reduction 262, result has 32.6 percent of original size [2021-11-23 02:30:54,492 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 4 stores, 1 select indices, 1 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 7 new quantified variables, introduced 8 case distinctions, treesize of input 2954 treesize of output 2672 [2021-11-23 02:31:05,903 WARN L227 SmtUtils]: Spent 11.22s on a formula simplification. DAG size of input: 251 DAG size of output: 142 (called from [L 351] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2021-11-23 02:31:05,904 INFO L354 Elim1Store]: treesize reduction 2750, result has 29.6 percent of original size [2021-11-23 02:31:05,905 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 4 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 4 new quantified variables, introduced 16 case distinctions, treesize of input 2922 treesize of output 2692 [2021-11-23 02:31:07,101 INFO L354 Elim1Store]: treesize reduction 80, result has 20.8 percent of original size [2021-11-23 02:31:07,102 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 7 case distinctions, treesize of input 25960 treesize of output 25971 [2021-11-23 02:31:08,083 INFO L354 Elim1Store]: treesize reduction 142, result has 15.5 percent of original size [2021-11-23 02:31:08,084 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 6 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 14 case distinctions, treesize of input 25959 treesize of output 25971 [2021-11-23 02:31:08,879 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:31:08,940 INFO L354 Elim1Store]: treesize reduction 32, result has 3.0 percent of original size [2021-11-23 02:31:08,940 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 38 treesize of output 20 [2021-11-23 02:31:09,143 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:31:09,379 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-23 02:31:09,379 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 51 treesize of output 61 [2021-11-23 02:31:09,553 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:31:09,569 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:31:09,571 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 55 treesize of output 39 [2021-11-23 02:31:09,598 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 02:31:09,690 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 02:31:09,879 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:31:10,087 INFO L354 Elim1Store]: treesize reduction 15, result has 48.3 percent of original size [2021-11-23 02:31:10,088 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 50 treesize of output 46 [2021-11-23 02:31:13,734 INFO L354 Elim1Store]: treesize reduction 13558, result has 36.1 percent of original size [2021-11-23 02:31:13,734 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 34294 treesize of output 39218 [2021-11-23 02:31:13,790 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:31:17,627 INFO L354 Elim1Store]: treesize reduction 13426, result has 36.7 percent of original size [2021-11-23 02:31:17,628 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 1 disjoint index pairs (out of 10 index pairs), introduced 6 new quantified variables, introduced 14 case distinctions, treesize of input 40623 treesize of output 45655 [2021-11-23 02:31:20,140 INFO L354 Elim1Store]: treesize reduction 13562, result has 36.1 percent of original size [2021-11-23 02:31:20,141 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 3 disjoint index pairs (out of 10 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 47060 treesize of output 51984 [2021-11-23 02:31:20,207 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:31:21,199 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-23 02:31:21,200 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 4 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 53389 treesize of output 54061 [2021-11-23 02:36:34,126 WARN L227 SmtUtils]: Spent 5.68s on a formula simplification that was a NOOP. DAG size: 1742 (called from [L1066] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2021-11-23 02:43:29,896 WARN L227 SmtUtils]: Spent 11.37s on a formula simplification that was a NOOP. DAG size: 2480 (called from [L1066] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify)