./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test4-1.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_b8ff8b5b-e0f5-4c93-9949-afbe7183d6e4/bin/utaipan-EQgc7hIp5V/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8ff8b5b-e0f5-4c93-9949-afbe7183d6e4/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_b8ff8b5b-e0f5-4c93-9949-afbe7183d6e4/bin/utaipan-EQgc7hIp5V/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8ff8b5b-e0f5-4c93-9949-afbe7183d6e4/bin/utaipan-EQgc7hIp5V/config/TaipanReach.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test4-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8ff8b5b-e0f5-4c93-9949-afbe7183d6e4/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_b8ff8b5b-e0f5-4c93-9949-afbe7183d6e4/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 be1dcf4f68625d62d28b81607385317c3749a3b9c4401099e862ce9a8a6e6751 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-aef121e [2021-11-23 02:01:03,403 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 02:01:03,406 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 02:01:03,456 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 02:01:03,457 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 02:01:03,459 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 02:01:03,461 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 02:01:03,465 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 02:01:03,468 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 02:01:03,470 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 02:01:03,471 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 02:01:03,473 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 02:01:03,474 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 02:01:03,476 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 02:01:03,478 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 02:01:03,481 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 02:01:03,482 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 02:01:03,484 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 02:01:03,487 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 02:01:03,491 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 02:01:03,494 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 02:01:03,496 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 02:01:03,498 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 02:01:03,500 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 02:01:03,513 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 02:01:03,514 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 02:01:03,514 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 02:01:03,516 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 02:01:03,516 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 02:01:03,518 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 02:01:03,519 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 02:01:03,520 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 02:01:03,521 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 02:01:03,522 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 02:01:03,530 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 02:01:03,532 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 02:01:03,533 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 02:01:03,533 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 02:01:03,533 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 02:01:03,535 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 02:01:03,536 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 02:01:03,537 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8ff8b5b-e0f5-4c93-9949-afbe7183d6e4/bin/utaipan-EQgc7hIp5V/config/svcomp-Overflow-32bit-Taipan_Default.epf [2021-11-23 02:01:03,591 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 02:01:03,592 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 02:01:03,593 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-23 02:01:03,593 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-23 02:01:03,594 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 02:01:03,594 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-23 02:01:03,595 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-23 02:01:03,595 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-23 02:01:03,595 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-23 02:01:03,595 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-23 02:01:03,597 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-23 02:01:03,597 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-23 02:01:03,597 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-23 02:01:03,597 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-23 02:01:03,598 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-23 02:01:03,598 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-23 02:01:03,598 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-23 02:01:03,598 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-23 02:01:03,599 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 02:01:03,600 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 02:01:03,600 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-23 02:01:03,600 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 02:01:03,600 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 02:01:03,601 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 02:01:03,601 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 02:01:03,601 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 02:01:03,603 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 02:01:03,603 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2021-11-23 02:01:03,603 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 02:01:03,604 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 02:01:03,604 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 02:01:03,604 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 02:01:03,605 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 02:01:03,606 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-23 02:01:03,606 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 02:01:03,606 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 02:01:03,606 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 02:01:03,607 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 02:01:03,607 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-23 02:01:03,607 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-23 02:01:03,607 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 02:01:03,608 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-23 02:01:03,608 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-23 02:01:03,608 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_b8ff8b5b-e0f5-4c93-9949-afbe7183d6e4/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8ff8b5b-e0f5-4c93-9949-afbe7183d6e4/bin/utaipan-EQgc7hIp5V Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> be1dcf4f68625d62d28b81607385317c3749a3b9c4401099e862ce9a8a6e6751 [2021-11-23 02:01:03,986 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 02:01:04,020 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 02:01:04,023 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 02:01:04,025 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 02:01:04,025 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 02:01:04,027 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8ff8b5b-e0f5-4c93-9949-afbe7183d6e4/bin/utaipan-EQgc7hIp5V/../../sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test4-1.i [2021-11-23 02:01:04,106 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8ff8b5b-e0f5-4c93-9949-afbe7183d6e4/bin/utaipan-EQgc7hIp5V/data/7d5ad6d58/023410a11bbc4174834632b0f2c98f7d/FLAG9666cc340 [2021-11-23 02:01:04,781 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 02:01:04,782 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8ff8b5b-e0f5-4c93-9949-afbe7183d6e4/sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test4-1.i [2021-11-23 02:01:04,821 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8ff8b5b-e0f5-4c93-9949-afbe7183d6e4/bin/utaipan-EQgc7hIp5V/data/7d5ad6d58/023410a11bbc4174834632b0f2c98f7d/FLAG9666cc340 [2021-11-23 02:01:04,990 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8ff8b5b-e0f5-4c93-9949-afbe7183d6e4/bin/utaipan-EQgc7hIp5V/data/7d5ad6d58/023410a11bbc4174834632b0f2c98f7d [2021-11-23 02:01:04,993 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 02:01:04,995 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 02:01:04,997 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 02:01:04,997 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 02:01:05,034 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 02:01:05,035 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:01:04" (1/1) ... [2021-11-23 02:01:05,036 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@68091e89 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:01:05, skipping insertion in model container [2021-11-23 02:01:05,037 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:01:04" (1/1) ... [2021-11-23 02:01:05,045 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 02:01:05,124 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 02:01:05,623 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_b8ff8b5b-e0f5-4c93-9949-afbe7183d6e4/sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test4-1.i[33021,33034] [2021-11-23 02:01:05,784 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 02:01:05,795 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 02:01:05,838 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_b8ff8b5b-e0f5-4c93-9949-afbe7183d6e4/sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test4-1.i[33021,33034] [2021-11-23 02:01:05,940 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 02:01:06,006 INFO L208 MainTranslator]: Completed translation [2021-11-23 02:01:06,006 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:01:06 WrapperNode [2021-11-23 02:01:06,006 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 02:01:06,008 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 02:01:06,008 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 02:01:06,008 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 02:01:06,018 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:01:06" (1/1) ... [2021-11-23 02:01:06,081 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:01:06" (1/1) ... [2021-11-23 02:01:06,241 INFO L137 Inliner]: procedures = 177, calls = 349, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 1159 [2021-11-23 02:01:06,242 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 02:01:06,243 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 02:01:06,244 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 02:01:06,245 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 02:01:06,256 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:01:06" (1/1) ... [2021-11-23 02:01:06,257 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:01:06" (1/1) ... [2021-11-23 02:01:06,304 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:01:06" (1/1) ... [2021-11-23 02:01:06,305 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:01:06" (1/1) ... [2021-11-23 02:01:06,392 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:01:06" (1/1) ... [2021-11-23 02:01:06,420 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:01:06" (1/1) ... [2021-11-23 02:01:06,428 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:01:06" (1/1) ... [2021-11-23 02:01:06,447 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 02:01:06,457 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 02:01:06,458 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 02:01:06,458 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 02:01:06,460 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:01:06" (1/1) ... [2021-11-23 02:01:06,468 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 02:01:06,483 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8ff8b5b-e0f5-4c93-9949-afbe7183d6e4/bin/utaipan-EQgc7hIp5V/z3 [2021-11-23 02:01:06,497 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8ff8b5b-e0f5-4c93-9949-afbe7183d6e4/bin/utaipan-EQgc7hIp5V/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-23 02:01:06,510 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8ff8b5b-e0f5-4c93-9949-afbe7183d6e4/bin/utaipan-EQgc7hIp5V/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-23 02:01:06,542 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-23 02:01:06,543 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-11-23 02:01:06,543 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-11-23 02:01:06,543 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-23 02:01:06,543 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-11-23 02:01:06,543 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-11-23 02:01:06,544 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-23 02:01:06,544 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 02:01:06,544 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-23 02:01:06,544 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-23 02:01:06,544 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-23 02:01:06,545 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-23 02:01:06,545 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-23 02:01:06,545 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 02:01:06,545 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 02:01:06,813 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 02:01:06,816 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 02:01:08,076 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 02:01:08,506 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-23 02:01:08,506 INFO L301 CfgBuilder]: Removed 60 assume(true) statements. [2021-11-23 02:01:08,512 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:01:08 BoogieIcfgContainer [2021-11-23 02:01:08,512 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-23 02:01:08,516 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-23 02:01:08,516 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-23 02:01:08,520 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-23 02:01:08,520 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 02:01:04" (1/3) ... [2021-11-23 02:01:08,522 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@544415b9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:01:08, skipping insertion in model container [2021-11-23 02:01:08,522 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:01:06" (2/3) ... [2021-11-23 02:01:08,523 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@544415b9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:01:08, skipping insertion in model container [2021-11-23 02:01:08,523 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:01:08" (3/3) ... [2021-11-23 02:01:08,534 INFO L111 eAbstractionObserver]: Analyzing ICFG uthash_FNV_test4-1.i [2021-11-23 02:01:08,541 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-23 02:01:08,542 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2021-11-23 02:01:08,611 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-23 02:01:08,632 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 02:01:08,632 INFO L340 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2021-11-23 02:01:08,661 INFO L276 IsEmpty]: Start isEmpty. Operand has 135 states, 110 states have (on average 1.809090909090909) internal successors, (199), 126 states have internal predecessors, (199), 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 02:01:08,664 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2021-11-23 02:01:08,665 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:01:08,665 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1] [2021-11-23 02:01:08,666 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 02:01:08,675 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:01:08,675 INFO L85 PathProgramCache]: Analyzing trace with hash 894004, now seen corresponding path program 1 times [2021-11-23 02:01:08,686 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:01:08,686 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [644046552] [2021-11-23 02:01:08,687 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:01:08,688 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:01:08,846 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-23 02:01:08,847 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1096507698] [2021-11-23 02:01:08,847 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:01:08,848 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 02:01:08,848 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8ff8b5b-e0f5-4c93-9949-afbe7183d6e4/bin/utaipan-EQgc7hIp5V/z3 [2021-11-23 02:01:08,853 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8ff8b5b-e0f5-4c93-9949-afbe7183d6e4/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 02:01:08,871 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8ff8b5b-e0f5-4c93-9949-afbe7183d6e4/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-23 02:01:09,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:01:09,069 INFO L263 TraceCheckSpWp]: Trace formula consists of 47 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-23 02:01:09,076 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 02:01:09,138 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 02:01:09,138 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-23 02:01:09,138 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:01:09,139 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [644046552] [2021-11-23 02:01:09,139 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-23 02:01:09,139 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1096507698] [2021-11-23 02:01:09,140 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1096507698] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:01:09,141 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:01:09,141 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-11-23 02:01:09,143 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1492232075] [2021-11-23 02:01:09,144 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:01:09,162 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 02:01:09,162 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:01:09,193 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 02:01:09,194 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 02:01:09,197 INFO L87 Difference]: Start difference. First operand has 135 states, 110 states have (on average 1.809090909090909) internal successors, (199), 126 states have internal predecessors, (199), 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 02:01:10,942 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:01:10,943 INFO L93 Difference]: Finished difference Result 368 states and 640 transitions. [2021-11-23 02:01:10,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 02:01:10,956 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 02:01:10,956 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:01:10,969 INFO L225 Difference]: With dead ends: 368 [2021-11-23 02:01:10,969 INFO L226 Difference]: Without dead ends: 233 [2021-11-23 02:01:10,975 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 02:01:10,980 INFO L933 BasicCegarLoop]: 162 mSDtfsCounter, 102 mSDsluCounter, 162 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 108 SdHoareTripleChecker+Valid, 308 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2021-11-23 02:01:10,981 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [108 Valid, 308 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2021-11-23 02:01:11,003 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 233 states. [2021-11-23 02:01:11,046 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 233 to 135. [2021-11-23 02:01:11,048 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 02:01:11,051 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 135 states to 135 states and 171 transitions. [2021-11-23 02:01:11,054 INFO L78 Accepts]: Start accepts. Automaton has 135 states and 171 transitions. Word has length 3 [2021-11-23 02:01:11,055 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:01:11,055 INFO L470 AbstractCegarLoop]: Abstraction has 135 states and 171 transitions. [2021-11-23 02:01:11,055 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 02:01:11,056 INFO L276 IsEmpty]: Start isEmpty. Operand 135 states and 171 transitions. [2021-11-23 02:01:11,062 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2021-11-23 02:01:11,063 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:01:11,063 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 02:01:11,094 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8ff8b5b-e0f5-4c93-9949-afbe7183d6e4/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-11-23 02:01:11,275 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8ff8b5b-e0f5-4c93-9949-afbe7183d6e4/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 02:01:11,276 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 02:01:11,277 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:01:11,277 INFO L85 PathProgramCache]: Analyzing trace with hash -1485228930, now seen corresponding path program 1 times [2021-11-23 02:01:11,277 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:01:11,278 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1409443033] [2021-11-23 02:01:11,278 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:01:11,278 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:01:11,310 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-23 02:01:11,310 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [204949442] [2021-11-23 02:01:11,311 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:01:11,311 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 02:01:11,311 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8ff8b5b-e0f5-4c93-9949-afbe7183d6e4/bin/utaipan-EQgc7hIp5V/z3 [2021-11-23 02:01:11,313 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8ff8b5b-e0f5-4c93-9949-afbe7183d6e4/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 02:01:11,315 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8ff8b5b-e0f5-4c93-9949-afbe7183d6e4/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-23 02:01:11,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:01:11,659 INFO L263 TraceCheckSpWp]: Trace formula consists of 226 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-23 02:01:11,667 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 02:01:11,897 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 02:01:11,897 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-23 02:01:11,905 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:01:11,906 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1409443033] [2021-11-23 02:01:11,906 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-23 02:01:11,906 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [204949442] [2021-11-23 02:01:11,908 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [204949442] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:01:11,908 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:01:11,908 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-23 02:01:11,909 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1270724985] [2021-11-23 02:01:11,909 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:01:11,912 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-23 02:01:11,912 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:01:11,913 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-23 02:01:11,914 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-23 02:01:11,914 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 02:01:15,334 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 02:01:17,437 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:01:17,437 INFO L93 Difference]: Finished difference Result 233 states and 285 transitions. [2021-11-23 02:01:17,442 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-23 02:01:17,442 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 02:01:17,443 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:01:17,446 INFO L225 Difference]: With dead ends: 233 [2021-11-23 02:01:17,447 INFO L226 Difference]: Without dead ends: 232 [2021-11-23 02:01:17,447 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 02:01:17,449 INFO L933 BasicCegarLoop]: 151 mSDtfsCounter, 59 mSDsluCounter, 327 mSDsCounter, 0 mSdLazyCounter, 69 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 447 SdHoareTripleChecker+Invalid, 71 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 69 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.5s IncrementalHoareTripleChecker+Time [2021-11-23 02:01:17,450 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [65 Valid, 447 Invalid, 71 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 69 Invalid, 1 Unknown, 0 Unchecked, 5.5s Time] [2021-11-23 02:01:17,452 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 232 states. [2021-11-23 02:01:17,478 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 232 to 230. [2021-11-23 02:01:17,479 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 02:01:17,482 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 230 states to 230 states and 282 transitions. [2021-11-23 02:01:17,482 INFO L78 Accepts]: Start accepts. Automaton has 230 states and 282 transitions. Word has length 48 [2021-11-23 02:01:17,483 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:01:17,483 INFO L470 AbstractCegarLoop]: Abstraction has 230 states and 282 transitions. [2021-11-23 02:01:17,484 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 02:01:17,484 INFO L276 IsEmpty]: Start isEmpty. Operand 230 states and 282 transitions. [2021-11-23 02:01:17,486 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2021-11-23 02:01:17,487 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:01:17,487 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 02:01:17,520 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8ff8b5b-e0f5-4c93-9949-afbe7183d6e4/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-11-23 02:01:17,703 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8ff8b5b-e0f5-4c93-9949-afbe7183d6e4/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 02:01:17,704 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 02:01:17,707 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:01:17,708 INFO L85 PathProgramCache]: Analyzing trace with hash 1202544191, now seen corresponding path program 1 times [2021-11-23 02:01:17,708 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:01:17,708 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2137285160] [2021-11-23 02:01:17,709 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:01:17,709 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:01:17,734 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-23 02:01:17,734 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [359456353] [2021-11-23 02:01:17,735 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:01:17,735 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 02:01:17,735 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8ff8b5b-e0f5-4c93-9949-afbe7183d6e4/bin/utaipan-EQgc7hIp5V/z3 [2021-11-23 02:01:17,736 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8ff8b5b-e0f5-4c93-9949-afbe7183d6e4/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 02:01:17,766 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8ff8b5b-e0f5-4c93-9949-afbe7183d6e4/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-11-23 02:01:18,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:01:18,056 INFO L263 TraceCheckSpWp]: Trace formula consists of 227 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-23 02:01:18,062 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 02:01:18,232 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 02:01:18,233 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-23 02:01:18,233 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:01:18,234 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2137285160] [2021-11-23 02:01:18,234 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-23 02:01:18,235 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [359456353] [2021-11-23 02:01:18,235 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [359456353] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:01:18,235 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:01:18,237 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-23 02:01:18,238 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [733769345] [2021-11-23 02:01:18,238 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:01:18,239 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-23 02:01:18,240 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:01:18,241 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-23 02:01:18,241 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-23 02:01:18,241 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 02:01:19,762 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:01:19,763 INFO L93 Difference]: Finished difference Result 230 states and 282 transitions. [2021-11-23 02:01:19,773 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-23 02:01:19,774 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 02:01:19,774 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:01:19,777 INFO L225 Difference]: With dead ends: 230 [2021-11-23 02:01:19,777 INFO L226 Difference]: Without dead ends: 229 [2021-11-23 02:01:19,778 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 02:01:19,780 INFO L933 BasicCegarLoop]: 143 mSDtfsCounter, 86 mSDsluCounter, 178 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s 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, 1.5s IncrementalHoareTripleChecker+Time [2021-11-23 02:01:19,781 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [102 Valid, 304 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2021-11-23 02:01:19,783 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 229 states. [2021-11-23 02:01:19,812 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 229 to 229. [2021-11-23 02:01:19,813 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 02:01:19,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 229 states to 229 states and 281 transitions. [2021-11-23 02:01:19,816 INFO L78 Accepts]: Start accepts. Automaton has 229 states and 281 transitions. Word has length 49 [2021-11-23 02:01:19,817 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:01:19,817 INFO L470 AbstractCegarLoop]: Abstraction has 229 states and 281 transitions. [2021-11-23 02:01:19,818 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 02:01:19,818 INFO L276 IsEmpty]: Start isEmpty. Operand 229 states and 281 transitions. [2021-11-23 02:01:19,820 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2021-11-23 02:01:19,821 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:01:19,821 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 02:01:19,852 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8ff8b5b-e0f5-4c93-9949-afbe7183d6e4/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-11-23 02:01:20,027 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8ff8b5b-e0f5-4c93-9949-afbe7183d6e4/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 02:01:20,028 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 02:01:20,029 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:01:20,029 INFO L85 PathProgramCache]: Analyzing trace with hash 298795953, now seen corresponding path program 1 times [2021-11-23 02:01:20,029 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:01:20,029 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [112536071] [2021-11-23 02:01:20,029 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:01:20,030 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:01:20,055 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-23 02:01:20,055 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2136264336] [2021-11-23 02:01:20,055 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:01:20,056 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 02:01:20,056 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8ff8b5b-e0f5-4c93-9949-afbe7183d6e4/bin/utaipan-EQgc7hIp5V/z3 [2021-11-23 02:01:20,057 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8ff8b5b-e0f5-4c93-9949-afbe7183d6e4/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 02:01:20,080 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8ff8b5b-e0f5-4c93-9949-afbe7183d6e4/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-11-23 02:01:20,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:01:20,341 INFO L263 TraceCheckSpWp]: Trace formula consists of 243 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-23 02:01:20,351 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 02:01:20,651 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 02:01:20,652 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-23 02:01:20,652 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:01:20,652 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [112536071] [2021-11-23 02:01:20,652 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-23 02:01:20,653 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2136264336] [2021-11-23 02:01:20,653 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2136264336] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:01:20,653 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:01:20,653 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-23 02:01:20,654 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [758847300] [2021-11-23 02:01:20,654 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:01:20,655 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 02:01:20,655 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:01:20,655 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 02:01:20,656 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 02:01:20,656 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 02:01:22,362 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:01:22,362 INFO L93 Difference]: Finished difference Result 384 states and 476 transitions. [2021-11-23 02:01:22,368 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 02:01:22,368 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 02:01:22,369 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:01:22,371 INFO L225 Difference]: With dead ends: 384 [2021-11-23 02:01:22,371 INFO L226 Difference]: Without dead ends: 227 [2021-11-23 02:01:22,373 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 02:01:22,375 INFO L933 BasicCegarLoop]: 152 mSDtfsCounter, 38 mSDsluCounter, 152 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s 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, 1.7s IncrementalHoareTripleChecker+Time [2021-11-23 02:01:22,376 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [43 Valid, 289 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2021-11-23 02:01:22,378 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 227 states. [2021-11-23 02:01:22,398 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 227 to 227. [2021-11-23 02:01:22,399 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 02:01:22,402 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 227 states to 227 states and 278 transitions. [2021-11-23 02:01:22,402 INFO L78 Accepts]: Start accepts. Automaton has 227 states and 278 transitions. Word has length 51 [2021-11-23 02:01:22,403 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:01:22,403 INFO L470 AbstractCegarLoop]: Abstraction has 227 states and 278 transitions. [2021-11-23 02:01:22,403 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 02:01:22,404 INFO L276 IsEmpty]: Start isEmpty. Operand 227 states and 278 transitions. [2021-11-23 02:01:22,407 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2021-11-23 02:01:22,407 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:01:22,407 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 02:01:22,450 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8ff8b5b-e0f5-4c93-9949-afbe7183d6e4/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-11-23 02:01:22,623 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8ff8b5b-e0f5-4c93-9949-afbe7183d6e4/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 02:01:22,624 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 02:01:22,624 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:01:22,624 INFO L85 PathProgramCache]: Analyzing trace with hash 122534312, now seen corresponding path program 1 times [2021-11-23 02:01:22,625 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:01:22,625 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2057998210] [2021-11-23 02:01:22,625 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:01:22,625 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:01:22,667 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-23 02:01:22,679 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1379898513] [2021-11-23 02:01:22,680 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:01:22,680 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 02:01:22,680 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8ff8b5b-e0f5-4c93-9949-afbe7183d6e4/bin/utaipan-EQgc7hIp5V/z3 [2021-11-23 02:01:22,696 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8ff8b5b-e0f5-4c93-9949-afbe7183d6e4/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 02:01:22,719 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8ff8b5b-e0f5-4c93-9949-afbe7183d6e4/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-11-23 02:01:22,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:01:22,991 INFO L263 TraceCheckSpWp]: Trace formula consists of 348 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-23 02:01:22,996 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 02:01:23,264 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 02:01:23,265 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-23 02:01:23,265 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:01:23,265 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2057998210] [2021-11-23 02:01:23,265 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-23 02:01:23,266 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1379898513] [2021-11-23 02:01:23,266 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1379898513] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:01:23,266 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:01:23,266 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-23 02:01:23,267 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [407487219] [2021-11-23 02:01:23,267 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:01:23,268 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 02:01:23,269 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:01:23,270 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 02:01:23,270 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 02:01:23,270 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 02:01:25,667 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:01:25,668 INFO L93 Difference]: Finished difference Result 426 states and 524 transitions. [2021-11-23 02:01:25,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 02:01:25,681 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 02:01:25,681 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:01:25,683 INFO L225 Difference]: With dead ends: 426 [2021-11-23 02:01:25,683 INFO L226 Difference]: Without dead ends: 225 [2021-11-23 02:01:25,685 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 02:01:25,688 INFO L933 BasicCegarLoop]: 149 mSDtfsCounter, 11 mSDsluCounter, 153 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s 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, 2.4s IncrementalHoareTripleChecker+Time [2021-11-23 02:01:25,689 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [13 Valid, 286 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2021-11-23 02:01:25,691 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 225 states. [2021-11-23 02:01:25,711 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 225 to 225. [2021-11-23 02:01:25,712 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 02:01:25,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 225 states to 225 states and 275 transitions. [2021-11-23 02:01:25,715 INFO L78 Accepts]: Start accepts. Automaton has 225 states and 275 transitions. Word has length 64 [2021-11-23 02:01:25,715 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:01:25,715 INFO L470 AbstractCegarLoop]: Abstraction has 225 states and 275 transitions. [2021-11-23 02:01:25,716 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 02:01:25,716 INFO L276 IsEmpty]: Start isEmpty. Operand 225 states and 275 transitions. [2021-11-23 02:01:25,720 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2021-11-23 02:01:25,720 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:01:25,720 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 02:01:25,754 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8ff8b5b-e0f5-4c93-9949-afbe7183d6e4/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2021-11-23 02:01:25,935 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8ff8b5b-e0f5-4c93-9949-afbe7183d6e4/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 02:01:25,936 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 02:01:25,936 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:01:25,936 INFO L85 PathProgramCache]: Analyzing trace with hash 1762473051, now seen corresponding path program 1 times [2021-11-23 02:01:25,937 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:01:25,937 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1291091750] [2021-11-23 02:01:25,937 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:01:25,937 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:01:25,996 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-23 02:01:26,001 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [209627648] [2021-11-23 02:01:26,001 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:01:26,002 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 02:01:26,002 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8ff8b5b-e0f5-4c93-9949-afbe7183d6e4/bin/utaipan-EQgc7hIp5V/z3 [2021-11-23 02:01:26,003 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8ff8b5b-e0f5-4c93-9949-afbe7183d6e4/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 02:01:26,019 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8ff8b5b-e0f5-4c93-9949-afbe7183d6e4/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-11-23 02:01:29,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:01:29,285 INFO L263 TraceCheckSpWp]: Trace formula consists of 453 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-23 02:01:29,290 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 02:01:29,445 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-11-23 02:01:29,446 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-23 02:01:29,446 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:01:29,446 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1291091750] [2021-11-23 02:01:29,447 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-23 02:01:29,447 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [209627648] [2021-11-23 02:01:29,447 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [209627648] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:01:29,447 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:01:29,447 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-23 02:01:29,448 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1112447441] [2021-11-23 02:01:29,448 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:01:29,449 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-23 02:01:29,449 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:01:29,449 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-23 02:01:29,450 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-23 02:01:29,450 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 02:01:31,970 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 02:01:33,993 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-23 02:01:35,404 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:01:35,404 INFO L93 Difference]: Finished difference Result 432 states and 542 transitions. [2021-11-23 02:01:35,413 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-23 02:01:35,413 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 02:01:35,414 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:01:35,416 INFO L225 Difference]: With dead ends: 432 [2021-11-23 02:01:35,417 INFO L226 Difference]: Without dead ends: 227 [2021-11-23 02:01:35,418 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 02:01:35,419 INFO L933 BasicCegarLoop]: 147 mSDtfsCounter, 1 mSDsluCounter, 321 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 3 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 434 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.9s IncrementalHoareTripleChecker+Time [2021-11-23 02:01:35,420 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1 Valid, 434 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 67 Invalid, 2 Unknown, 0 Unchecked, 5.9s Time] [2021-11-23 02:01:35,421 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 227 states. [2021-11-23 02:01:35,441 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 227 to 227. [2021-11-23 02:01:35,442 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 02:01:35,444 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 227 states to 227 states and 281 transitions. [2021-11-23 02:01:35,445 INFO L78 Accepts]: Start accepts. Automaton has 227 states and 281 transitions. Word has length 77 [2021-11-23 02:01:35,445 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:01:35,445 INFO L470 AbstractCegarLoop]: Abstraction has 227 states and 281 transitions. [2021-11-23 02:01:35,446 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 02:01:35,446 INFO L276 IsEmpty]: Start isEmpty. Operand 227 states and 281 transitions. [2021-11-23 02:01:35,450 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2021-11-23 02:01:35,450 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:01:35,451 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 02:01:35,500 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8ff8b5b-e0f5-4c93-9949-afbe7183d6e4/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2021-11-23 02:01:35,675 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8ff8b5b-e0f5-4c93-9949-afbe7183d6e4/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2021-11-23 02:01:35,676 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 02:01:35,676 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:01:35,676 INFO L85 PathProgramCache]: Analyzing trace with hash -211946721, now seen corresponding path program 1 times [2021-11-23 02:01:35,676 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:01:35,677 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2051998672] [2021-11-23 02:01:35,677 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:01:35,677 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:01:35,698 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-23 02:01:35,698 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [246606718] [2021-11-23 02:01:35,699 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:01:35,699 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 02:01:35,699 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8ff8b5b-e0f5-4c93-9949-afbe7183d6e4/bin/utaipan-EQgc7hIp5V/z3 [2021-11-23 02:01:35,700 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8ff8b5b-e0f5-4c93-9949-afbe7183d6e4/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 02:01:35,731 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8ff8b5b-e0f5-4c93-9949-afbe7183d6e4/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2021-11-23 02:01:37,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:01:37,282 INFO L263 TraceCheckSpWp]: Trace formula consists of 477 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-23 02:01:37,285 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 02:01:37,449 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 28 proven. 5 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-23 02:01:37,449 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 02:01:37,675 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 12 proven. 6 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-11-23 02:01:37,676 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:01:37,676 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2051998672] [2021-11-23 02:01:37,676 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-23 02:01:37,676 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [246606718] [2021-11-23 02:01:37,676 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [246606718] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-23 02:01:37,677 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1145490167] [2021-11-23 02:01:37,703 INFO L159 IcfgInterpreter]: Started Sifa with 67 locations of interest [2021-11-23 02:01:37,704 INFO L166 IcfgInterpreter]: Building call graph [2021-11-23 02:01:37,709 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-23 02:01:37,716 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-23 02:01:37,716 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-23 02:01:38,119 INFO L354 Elim1Store]: treesize reduction 20, result has 48.7 percent of original size [2021-11-23 02:01:38,120 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 02:01:38,137 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 02:01:38,146 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 02:01:38,170 INFO L354 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2021-11-23 02:01:38,171 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 02:01:38,225 INFO L354 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2021-11-23 02:01:38,226 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 02:01:38,283 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 02:01:38,294 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 02:01:38,313 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:01:38,315 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 02:01:38,707 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:01:38,708 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:01:38,710 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:01:38,711 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 02:01:38,736 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:01:38,737 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:01:38,739 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:01:38,740 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 02:01:38,757 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:01:38,759 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:01:38,760 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:01:38,761 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:01:38,762 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:01:38,763 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:01:38,765 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:01:38,767 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 02:01:38,783 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:01:38,784 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:01:38,786 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:01:38,787 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:01:38,788 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:01:38,789 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:01:38,790 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:01:38,792 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 02:01:38,839 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:01:38,840 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:01:38,841 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:01:38,843 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 02:01:38,861 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:01:38,862 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:01:38,863 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:01:38,865 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 02:01:38,899 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:01:38,900 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:01:38,901 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:01:38,902 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:01:38,904 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:01:38,905 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:01:38,906 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:01:38,907 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:01:38,908 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:01:38,909 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:01:38,910 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:01:38,912 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:01:38,913 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:01:38,914 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:01:38,915 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:01:38,917 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:01:38,919 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 19 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 75 treesize of output 78 [2021-11-23 02:01:38,977 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:01:38,978 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:01:38,982 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:01:38,983 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:01:38,984 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:01:38,985 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:01:38,987 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:01:38,988 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:01:38,989 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:01:38,990 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:01:38,991 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:01:38,993 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 02:01:39,033 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:01:39,034 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:01:39,037 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:01:39,039 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:01:39,040 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:01:39,041 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:01:39,043 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 02:01:39,162 INFO L354 Elim1Store]: treesize reduction 130, result has 28.2 percent of original size [2021-11-23 02:01:39,162 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 02:01:39,221 INFO L354 Elim1Store]: treesize reduction 78, result has 17.0 percent of original size [2021-11-23 02:01:39,222 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 02:01:39,250 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:01:39,251 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:01:39,252 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:01:39,254 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:01:39,255 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:01:39,256 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:01:39,265 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 02:01:39,387 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 02:01:39,391 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 02:01:39,396 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 02:01:39,452 INFO L354 Elim1Store]: treesize reduction 19, result has 36.7 percent of original size [2021-11-23 02:01:39,452 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 02:01:39,486 INFO L354 Elim1Store]: treesize reduction 21, result has 34.4 percent of original size [2021-11-23 02:01:39,486 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 02:01:39,519 INFO L354 Elim1Store]: treesize reduction 19, result has 36.7 percent of original size [2021-11-23 02:01:39,520 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 02:01:39,573 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 02:01:39,580 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 02:01:39,588 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 02:01:39,662 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:01:39,663 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:01:39,664 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:01:39,666 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:01:39,667 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:01:39,668 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:01:39,669 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 02:01:39,689 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:01:39,690 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:01:39,692 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:01:39,693 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:01:39,694 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:01:39,695 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:01:39,697 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:01:39,703 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 02:01:39,721 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:01:39,722 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:01:39,724 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:01:39,725 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:01:39,727 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:01:39,728 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:01:39,730 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 02:01:39,876 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:01:39,877 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:01:39,878 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:01:39,879 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:01:39,880 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:01:39,882 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:01:39,884 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 02:01:39,900 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:01:39,901 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:01:39,902 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:01:39,904 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:01:39,905 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:01:39,906 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:01:39,907 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 02:01:39,967 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:01:39,968 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:01:39,970 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:01:39,971 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:01:39,972 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:01:39,974 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:01:39,975 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:01:39,976 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 02:01:48,787 WARN L227 SmtUtils]: Spent 8.69s 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 02:01:48,788 INFO L354 Elim1Store]: treesize reduction 348, result has 15.7 percent of original size [2021-11-23 02:01:48,789 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 02:01:48,842 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:02:02,176 WARN L227 SmtUtils]: Spent 13.33s 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 02:02:02,177 INFO L354 Elim1Store]: treesize reduction 262, result has 32.6 percent of original size [2021-11-23 02:02:02,178 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 02:02:16,002 WARN L227 SmtUtils]: Spent 13.66s on a formula simplification. DAG size of input: 252 DAG size of output: 143 (called from [L 351] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2021-11-23 02:02:16,004 INFO L354 Elim1Store]: treesize reduction 2662, result has 30.3 percent of original size [2021-11-23 02:02:16,005 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 2858 treesize of output 2688 [2021-11-23 02:02:17,428 INFO L354 Elim1Store]: treesize reduction 80, result has 20.8 percent of original size [2021-11-23 02:02:17,429 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 25956 treesize of output 25967 [2021-11-23 02:02:18,514 INFO L354 Elim1Store]: treesize reduction 142, result has 15.5 percent of original size [2021-11-23 02:02:18,515 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 25955 treesize of output 25967 [2021-11-23 02:02:19,302 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:02:19,409 INFO L354 Elim1Store]: treesize reduction 28, result has 3.4 percent of original size [2021-11-23 02:02:19,410 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 36 treesize of output 20 [2021-11-23 02:02:19,486 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 02:02:19,611 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 02:02:19,648 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 02:02:19,857 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:02:20,081 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-23 02:02:20,081 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 53 treesize of output 63 [2021-11-23 02:02:20,217 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 02:02:20,265 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 02:02:20,357 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:02:20,359 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 15 [2021-11-23 02:02:20,456 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 02:02:20,643 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:02:20,678 INFO L354 Elim1Store]: treesize reduction 24, result has 4.0 percent of original size [2021-11-23 02:02:20,679 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 36 treesize of output 20 [2021-11-23 02:02:20,715 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 02:02:20,966 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:02:20,968 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 15 [2021-11-23 02:02:21,074 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 02:02:21,111 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 02:02:21,354 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:02:21,481 INFO L354 Elim1Store]: treesize reduction 17, result has 37.0 percent of original size [2021-11-23 02:02:21,481 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 38 treesize of output 32 [2021-11-23 02:02:21,787 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:02:21,799 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:02:21,811 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:02:21,813 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 69 treesize of output 47 [2021-11-23 02:02:21,883 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 02:02:22,937 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:02:22,970 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:02:22,999 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:02:23,001 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:02:23,025 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:02:23,051 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:02:23,095 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:02:23,125 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:02:23,126 INFO L244 Elim1Store]: Index analysis took 190 ms [2021-11-23 02:02:23,128 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 3577 treesize of output 3127 [2021-11-23 02:02:23,339 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:02:23,367 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:02:23,369 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:02:23,419 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:02:23,439 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:02:23,461 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:02:23,473 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:02:23,495 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:02:23,495 INFO L244 Elim1Store]: Index analysis took 156 ms [2021-11-23 02:02:23,497 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 3689 treesize of output 3227 [2021-11-23 02:02:23,648 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:02:23,669 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:02:23,671 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:02:23,689 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:02:23,707 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:02:23,733 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:02:23,746 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:02:23,762 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:02:23,763 INFO L244 Elim1Store]: Index analysis took 116 ms [2021-11-23 02:02:23,765 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 3589 treesize of output 3133 [2021-11-23 02:02:24,257 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:02:24,317 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:02:24,353 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:02:24,399 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:02:24,430 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:02:24,446 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:02:24,447 INFO L244 Elim1Store]: Index analysis took 190 ms [2021-11-23 02:02:24,660 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-23 02:02:24,660 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 3577 treesize of output 3197 [2021-11-23 02:02:25,197 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 02:02:25,293 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 02:02:25,398 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:02:25,438 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:02:25,471 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:02:25,522 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:02:25,532 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:02:25,546 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:02:25,567 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:02:25,568 INFO L244 Elim1Store]: Index analysis took 170 ms [2021-11-23 02:02:25,713 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-23 02:02:25,714 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 1 case distinctions, treesize of input 3689 treesize of output 3279 [2021-11-23 02:02:25,911 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:02:26,005 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:02:26,056 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:02:26,068 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:02:26,094 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:02:26,117 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:02:26,117 INFO L244 Elim1Store]: Index analysis took 206 ms [2021-11-23 02:02:26,132 INFO L354 Elim1Store]: treesize reduction 51, result has 1.9 percent of original size [2021-11-23 02:02:26,132 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 1 case distinctions, treesize of input 3589 treesize of output 3133 [2021-11-23 02:02:26,794 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:02:26,822 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:02:26,865 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:02:26,866 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:02:26,906 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:02:26,936 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:02:26,959 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:02:26,981 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:02:26,982 INFO L244 Elim1Store]: Index analysis took 188 ms [2021-11-23 02:02:26,984 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 3577 treesize of output 3127 [2021-11-23 02:02:27,149 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 02:02:27,222 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 02:02:27,343 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:02:27,381 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:02:27,383 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:02:27,428 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:02:27,452 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:02:27,481 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:02:27,500 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:02:27,519 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:02:27,520 INFO L244 Elim1Store]: Index analysis took 177 ms [2021-11-23 02:02:27,521 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 3689 treesize of output 3227 [2021-11-23 02:02:27,693 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:02:27,694 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:02:27,716 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:02:27,730 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:02:27,759 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:02:27,775 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:02:27,786 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:02:27,786 INFO L244 Elim1Store]: Index analysis took 107 ms [2021-11-23 02:02:27,788 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 3589 treesize of output 3133 [2021-11-23 02:02:28,377 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 02:02:28,658 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:02:28,694 INFO L244 Elim1Store]: Index analysis took 213 ms [2021-11-23 02:02:31,409 INFO L354 Elim1Store]: treesize reduction 480, result has 74.4 percent of original size [2021-11-23 02:02:31,410 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 9 case distinctions, treesize of input 3698 treesize of output 4622 [2021-11-23 02:02:32,132 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 02:02:32,837 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:02:32,850 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:02:32,850 INFO L244 Elim1Store]: Index analysis took 153 ms [2021-11-23 02:02:34,662 INFO L354 Elim1Store]: treesize reduction 470, result has 74.2 percent of original size [2021-11-23 02:02:34,663 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 5 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 3598 treesize of output 4488 [2021-11-23 02:02:35,842 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:02:35,887 INFO L244 Elim1Store]: Index analysis took 221 ms [2021-11-23 02:02:36,237 INFO L354 Elim1Store]: treesize reduction 1848, result has 0.1 percent of original size [2021-11-23 02:02:36,237 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 9 case distinctions, treesize of input 3586 treesize of output 3130 [2021-11-23 02:02:38,396 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:02:38,416 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:02:38,449 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:02:38,478 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:02:38,491 INFO L244 Elim1Store]: Index analysis took 233 ms [2021-11-23 02:02:44,150 WARN L227 SmtUtils]: Spent 5.40s on a formula simplification. DAG size of input: 152 DAG size of output: 122 (called from [L 351] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2021-11-23 02:02:44,151 INFO L354 Elim1Store]: treesize reduction 1554, result has 60.0 percent of original size [2021-11-23 02:02:44,152 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 9 select indices, 9 select index equivalence classes, 7 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 31 case distinctions, treesize of input 95710 treesize of output 96552 [2021-11-23 02:07:16,445 WARN L227 SmtUtils]: Spent 6.35s on a formula simplification that was a NOOP. DAG size: 2560 (called from [L1066] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2021-11-23 02:13:25,249 WARN L227 SmtUtils]: Spent 7.43s on a formula simplification that was a NOOP. DAG size: 2914 (called from [L1066] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2021-11-23 02:13:40,410 WARN L227 SmtUtils]: Spent 7.69s on a formula simplification that was a NOOP. DAG size: 2912 (called from [L1066] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify)