./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_BER_test2-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 38b53e6a Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_507ef987-83a3-4c70-8536-b1fdfa3cafce/bin/utaipan-ByfvJB40ur/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_507ef987-83a3-4c70-8536-b1fdfa3cafce/bin/utaipan-ByfvJB40ur/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_507ef987-83a3-4c70-8536-b1fdfa3cafce/bin/utaipan-ByfvJB40ur/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_507ef987-83a3-4c70-8536-b1fdfa3cafce/bin/utaipan-ByfvJB40ur/config/TaipanReach.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_BER_test2-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_507ef987-83a3-4c70-8536-b1fdfa3cafce/bin/utaipan-ByfvJB40ur/config/svcomp-Overflow-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_507ef987-83a3-4c70-8536-b1fdfa3cafce/bin/utaipan-ByfvJB40ur --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 f0735ebc421a940bb70b06777060abaef432af6ff0cfdeb82bfa2e45a81b4e11 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-38b53e6 [2022-11-25 22:16:46,194 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-25 22:16:46,196 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-25 22:16:46,230 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-25 22:16:46,231 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-25 22:16:46,233 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-25 22:16:46,236 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-25 22:16:46,241 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-25 22:16:46,244 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-25 22:16:46,245 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-25 22:16:46,247 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-25 22:16:46,248 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-25 22:16:46,249 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-25 22:16:46,250 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-25 22:16:46,251 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-25 22:16:46,252 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-25 22:16:46,255 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-25 22:16:46,260 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-25 22:16:46,262 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-25 22:16:46,264 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-25 22:16:46,269 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-25 22:16:46,270 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-25 22:16:46,271 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-25 22:16:46,272 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-25 22:16:46,276 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-25 22:16:46,276 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-25 22:16:46,277 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-25 22:16:46,278 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-25 22:16:46,278 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-25 22:16:46,279 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-25 22:16:46,280 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-25 22:16:46,280 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-25 22:16:46,281 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-25 22:16:46,282 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-25 22:16:46,290 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-25 22:16:46,290 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-25 22:16:46,291 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-25 22:16:46,292 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-25 22:16:46,292 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-25 22:16:46,296 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-25 22:16:46,297 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-25 22:16:46,297 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_507ef987-83a3-4c70-8536-b1fdfa3cafce/bin/utaipan-ByfvJB40ur/config/svcomp-Overflow-32bit-Taipan_Default.epf [2022-11-25 22:16:46,338 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-25 22:16:46,339 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-25 22:16:46,339 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-25 22:16:46,339 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-25 22:16:46,340 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-25 22:16:46,340 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-25 22:16:46,340 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-25 22:16:46,340 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-25 22:16:46,341 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-25 22:16:46,341 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-25 22:16:46,341 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-25 22:16:46,341 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-25 22:16:46,341 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-25 22:16:46,342 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-25 22:16:46,342 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-25 22:16:46,342 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-25 22:16:46,342 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-25 22:16:46,343 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-25 22:16:46,343 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-25 22:16:46,344 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-25 22:16:46,344 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-25 22:16:46,344 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-25 22:16:46,344 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-25 22:16:46,344 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-25 22:16:46,345 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-25 22:16:46,345 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-25 22:16:46,345 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-25 22:16:46,345 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-25 22:16:46,345 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-25 22:16:46,346 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-25 22:16:46,346 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-25 22:16:46,346 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-25 22:16:46,346 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-25 22:16:46,346 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-25 22:16:46,347 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 22:16:46,347 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-25 22:16:46,347 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-25 22:16:46,347 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-25 22:16:46,348 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-25 22:16:46,348 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-25 22:16:46,348 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-25 22:16:46,348 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-25 22:16:46,348 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-25 22:16:46,348 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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_507ef987-83a3-4c70-8536-b1fdfa3cafce/bin/utaipan-ByfvJB40ur/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_507ef987-83a3-4c70-8536-b1fdfa3cafce/bin/utaipan-ByfvJB40ur Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f0735ebc421a940bb70b06777060abaef432af6ff0cfdeb82bfa2e45a81b4e11 [2022-11-25 22:16:46,642 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-25 22:16:46,666 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-25 22:16:46,669 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-25 22:16:46,670 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-25 22:16:46,686 INFO L275 PluginConnector]: CDTParser initialized [2022-11-25 22:16:46,687 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_507ef987-83a3-4c70-8536-b1fdfa3cafce/bin/utaipan-ByfvJB40ur/../../sv-benchmarks/c/uthash-2.0.2/uthash_BER_test2-1.i [2022-11-25 22:16:49,789 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-25 22:16:50,134 INFO L351 CDTParser]: Found 1 translation units. [2022-11-25 22:16:50,135 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_507ef987-83a3-4c70-8536-b1fdfa3cafce/sv-benchmarks/c/uthash-2.0.2/uthash_BER_test2-1.i [2022-11-25 22:16:50,154 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_507ef987-83a3-4c70-8536-b1fdfa3cafce/bin/utaipan-ByfvJB40ur/data/87b104a38/53bf69f1ce764ec183854c725b0d67a2/FLAG09e25e0c9 [2022-11-25 22:16:50,174 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_507ef987-83a3-4c70-8536-b1fdfa3cafce/bin/utaipan-ByfvJB40ur/data/87b104a38/53bf69f1ce764ec183854c725b0d67a2 [2022-11-25 22:16:50,177 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-25 22:16:50,179 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-25 22:16:50,183 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-25 22:16:50,183 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-25 22:16:50,187 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-25 22:16:50,188 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 10:16:50" (1/1) ... [2022-11-25 22:16:50,189 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@32fac37e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:16:50, skipping insertion in model container [2022-11-25 22:16:50,190 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 10:16:50" (1/1) ... [2022-11-25 22:16:50,197 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-25 22:16:50,273 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-25 22:16:50,836 WARN L237 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_507ef987-83a3-4c70-8536-b1fdfa3cafce/sv-benchmarks/c/uthash-2.0.2/uthash_BER_test2-1.i[37019,37032] [2022-11-25 22:16:50,985 WARN L623 FunctionHandler]: Unknown extern function memcmp [2022-11-25 22:16:50,998 WARN L237 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_507ef987-83a3-4c70-8536-b1fdfa3cafce/sv-benchmarks/c/uthash-2.0.2/uthash_BER_test2-1.i[47352,47365] [2022-11-25 22:16:51,007 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 22:16:51,017 INFO L203 MainTranslator]: Completed pre-run [2022-11-25 22:16:51,048 WARN L237 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_507ef987-83a3-4c70-8536-b1fdfa3cafce/sv-benchmarks/c/uthash-2.0.2/uthash_BER_test2-1.i[37019,37032] [2022-11-25 22:16:51,097 WARN L623 FunctionHandler]: Unknown extern function memcmp [2022-11-25 22:16:51,100 WARN L237 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_507ef987-83a3-4c70-8536-b1fdfa3cafce/sv-benchmarks/c/uthash-2.0.2/uthash_BER_test2-1.i[47352,47365] [2022-11-25 22:16:51,102 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 22:16:51,179 INFO L208 MainTranslator]: Completed translation [2022-11-25 22:16:51,180 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:16:51 WrapperNode [2022-11-25 22:16:51,180 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-25 22:16:51,181 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-25 22:16:51,182 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-25 22:16:51,182 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-25 22:16:51,190 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:16:51" (1/1) ... [2022-11-25 22:16:51,255 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:16:51" (1/1) ... [2022-11-25 22:16:51,318 INFO L138 Inliner]: procedures = 208, calls = 235, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 888 [2022-11-25 22:16:51,319 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-25 22:16:51,320 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-25 22:16:51,320 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-25 22:16:51,320 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-25 22:16:51,330 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:16:51" (1/1) ... [2022-11-25 22:16:51,330 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:16:51" (1/1) ... [2022-11-25 22:16:51,338 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:16:51" (1/1) ... [2022-11-25 22:16:51,338 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:16:51" (1/1) ... [2022-11-25 22:16:51,375 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:16:51" (1/1) ... [2022-11-25 22:16:51,388 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:16:51" (1/1) ... [2022-11-25 22:16:51,391 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:16:51" (1/1) ... [2022-11-25 22:16:51,395 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:16:51" (1/1) ... [2022-11-25 22:16:51,402 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-25 22:16:51,403 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-25 22:16:51,404 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-25 22:16:51,404 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-25 22:16:51,405 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:16:51" (1/1) ... [2022-11-25 22:16:51,423 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 22:16:51,435 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_507ef987-83a3-4c70-8536-b1fdfa3cafce/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 22:16:51,462 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_507ef987-83a3-4c70-8536-b1fdfa3cafce/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-25 22:16:51,487 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_507ef987-83a3-4c70-8536-b1fdfa3cafce/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-25 22:16:51,513 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-25 22:16:51,514 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-25 22:16:51,514 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-25 22:16:51,514 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2022-11-25 22:16:51,514 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-25 22:16:51,515 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-25 22:16:51,515 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-25 22:16:51,515 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-11-25 22:16:51,515 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-11-25 22:16:51,515 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-25 22:16:51,515 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-25 22:16:51,517 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-25 22:16:51,517 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-25 22:16:51,517 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-25 22:16:51,518 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-25 22:16:51,518 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-25 22:16:51,775 INFO L235 CfgBuilder]: Building ICFG [2022-11-25 22:16:51,777 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-25 22:16:53,274 INFO L276 CfgBuilder]: Performing block encoding [2022-11-25 22:16:53,678 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-25 22:16:53,678 INFO L300 CfgBuilder]: Removed 54 assume(true) statements. [2022-11-25 22:16:53,682 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 10:16:53 BoogieIcfgContainer [2022-11-25 22:16:53,682 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-25 22:16:53,685 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-25 22:16:53,685 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-25 22:16:53,688 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-25 22:16:53,688 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 10:16:50" (1/3) ... [2022-11-25 22:16:53,689 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2cd443d8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 10:16:53, skipping insertion in model container [2022-11-25 22:16:53,690 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:16:51" (2/3) ... [2022-11-25 22:16:53,692 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2cd443d8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 10:16:53, skipping insertion in model container [2022-11-25 22:16:53,693 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 10:16:53" (3/3) ... [2022-11-25 22:16:53,694 INFO L112 eAbstractionObserver]: Analyzing ICFG uthash_BER_test2-1.i [2022-11-25 22:16:53,714 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-25 22:16:53,714 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2022-11-25 22:16:53,779 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-25 22:16:53,789 INFO L357 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, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@55b4e1f4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-25 22:16:53,789 INFO L358 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2022-11-25 22:16:53,794 INFO L276 IsEmpty]: Start isEmpty. Operand has 119 states, 100 states have (on average 1.82) internal successors, (182), 113 states have internal predecessors, (182), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2022-11-25 22:16:53,800 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-11-25 22:16:53,801 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:16:53,802 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-11-25 22:16:53,803 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-25 22:16:53,810 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:16:53,811 INFO L85 PathProgramCache]: Analyzing trace with hash 22737132, now seen corresponding path program 1 times [2022-11-25 22:16:53,821 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:16:53,821 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [579913537] [2022-11-25 22:16:53,822 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:16:53,822 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:16:53,930 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-25 22:16:53,931 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1407358106] [2022-11-25 22:16:53,931 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:16:53,932 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 22:16:53,932 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_507ef987-83a3-4c70-8536-b1fdfa3cafce/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 22:16:53,939 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_507ef987-83a3-4c70-8536-b1fdfa3cafce/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 22:16:53,959 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_507ef987-83a3-4c70-8536-b1fdfa3cafce/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-25 22:16:54,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:16:54,151 INFO L263 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 13 conjunts are in the unsatisfiable core [2022-11-25 22:16:54,158 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 22:16:54,229 INFO L350 Elim1Store]: Elim1 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 [2022-11-25 22:16:54,240 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 6 treesize of output 5 [2022-11-25 22:16:54,305 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:16:54,307 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2022-11-25 22:16:54,317 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 22:16:54,317 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 22:16:54,318 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 22:16:54,318 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [579913537] [2022-11-25 22:16:54,318 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-25 22:16:54,319 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1407358106] [2022-11-25 22:16:54,319 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1407358106] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 22:16:54,320 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 22:16:54,320 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-25 22:16:54,323 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [748314826] [2022-11-25 22:16:54,325 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:16:54,332 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-25 22:16:54,333 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 22:16:54,368 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-25 22:16:54,368 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-25 22:16:54,371 INFO L87 Difference]: Start difference. First operand has 119 states, 100 states have (on average 1.82) internal successors, (182), 113 states have internal predecessors, (182), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) Second operand has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 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) [2022-11-25 22:16:56,079 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:16:56,079 INFO L93 Difference]: Finished difference Result 308 states and 522 transitions. [2022-11-25 22:16:56,084 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-25 22:16:56,085 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 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 4 [2022-11-25 22:16:56,085 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:16:56,093 INFO L225 Difference]: With dead ends: 308 [2022-11-25 22:16:56,093 INFO L226 Difference]: Without dead ends: 187 [2022-11-25 22:16:56,096 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-25 22:16:56,100 INFO L413 NwaCegarLoop]: 120 mSDtfsCounter, 75 mSDsluCounter, 213 mSDsCounter, 0 mSdLazyCounter, 108 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 80 SdHoareTripleChecker+Valid, 333 SdHoareTripleChecker+Invalid, 112 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 108 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-11-25 22:16:56,101 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [80 Valid, 333 Invalid, 112 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 108 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2022-11-25 22:16:56,114 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 187 states. [2022-11-25 22:16:56,142 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 187 to 121. [2022-11-25 22:16:56,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 121 states, 103 states have (on average 1.2718446601941749) internal successors, (131), 115 states have internal predecessors, (131), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2022-11-25 22:16:56,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 121 states and 147 transitions. [2022-11-25 22:16:56,147 INFO L78 Accepts]: Start accepts. Automaton has 121 states and 147 transitions. Word has length 4 [2022-11-25 22:16:56,147 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:16:56,147 INFO L495 AbstractCegarLoop]: Abstraction has 121 states and 147 transitions. [2022-11-25 22:16:56,148 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 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) [2022-11-25 22:16:56,148 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 147 transitions. [2022-11-25 22:16:56,149 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-11-25 22:16:56,149 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:16:56,150 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 22:16:56,161 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_507ef987-83a3-4c70-8536-b1fdfa3cafce/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-25 22:16:56,356 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_507ef987-83a3-4c70-8536-b1fdfa3cafce/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2022-11-25 22:16:56,356 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-25 22:16:56,357 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:16:56,357 INFO L85 PathProgramCache]: Analyzing trace with hash 196565253, now seen corresponding path program 1 times [2022-11-25 22:16:56,357 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:16:56,357 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1779505703] [2022-11-25 22:16:56,357 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:16:56,357 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:16:56,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:16:56,847 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 22:16:56,847 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 22:16:56,848 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1779505703] [2022-11-25 22:16:56,848 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1779505703] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 22:16:56,848 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 22:16:56,848 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 22:16:56,849 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [897976328] [2022-11-25 22:16:56,849 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:16:56,852 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-25 22:16:56,852 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 22:16:56,853 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-25 22:16:56,853 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-25 22:16:56,854 INFO L87 Difference]: Start difference. First operand 121 states and 147 transitions. Second operand has 4 states, 4 states have (on average 5.0) internal successors, (20), 3 states have internal predecessors, (20), 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) [2022-11-25 22:16:58,443 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:16:58,443 INFO L93 Difference]: Finished difference Result 230 states and 289 transitions. [2022-11-25 22:16:58,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-25 22:16:58,450 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.0) internal successors, (20), 3 states have internal predecessors, (20), 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 20 [2022-11-25 22:16:58,450 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:16:58,452 INFO L225 Difference]: With dead ends: 230 [2022-11-25 22:16:58,452 INFO L226 Difference]: Without dead ends: 174 [2022-11-25 22:16:58,453 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-25 22:16:58,454 INFO L413 NwaCegarLoop]: 123 mSDtfsCounter, 61 mSDsluCounter, 217 mSDsCounter, 0 mSdLazyCounter, 94 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 340 SdHoareTripleChecker+Invalid, 96 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 94 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-11-25 22:16:58,454 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [66 Valid, 340 Invalid, 96 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 94 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2022-11-25 22:16:58,455 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 174 states. [2022-11-25 22:16:58,466 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 174 to 121. [2022-11-25 22:16:58,466 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 121 states, 103 states have (on average 1.2621359223300972) internal successors, (130), 115 states have internal predecessors, (130), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2022-11-25 22:16:58,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 121 states and 146 transitions. [2022-11-25 22:16:58,468 INFO L78 Accepts]: Start accepts. Automaton has 121 states and 146 transitions. Word has length 20 [2022-11-25 22:16:58,468 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:16:58,468 INFO L495 AbstractCegarLoop]: Abstraction has 121 states and 146 transitions. [2022-11-25 22:16:58,469 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.0) internal successors, (20), 3 states have internal predecessors, (20), 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) [2022-11-25 22:16:58,469 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 146 transitions. [2022-11-25 22:16:58,470 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2022-11-25 22:16:58,470 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:16:58,470 INFO L195 NwaCegarLoop]: 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] [2022-11-25 22:16:58,470 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-25 22:16:58,471 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-25 22:16:58,471 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:16:58,471 INFO L85 PathProgramCache]: Analyzing trace with hash 592905191, now seen corresponding path program 1 times [2022-11-25 22:16:58,471 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:16:58,472 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [462106265] [2022-11-25 22:16:58,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:16:58,472 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:16:58,608 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-25 22:16:58,609 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [58637508] [2022-11-25 22:16:58,609 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:16:58,609 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 22:16:58,609 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_507ef987-83a3-4c70-8536-b1fdfa3cafce/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 22:16:58,610 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_507ef987-83a3-4c70-8536-b1fdfa3cafce/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 22:16:58,639 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_507ef987-83a3-4c70-8536-b1fdfa3cafce/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-25 22:16:59,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:16:59,316 INFO L263 TraceCheckSpWp]: Trace formula consists of 1578 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-25 22:16:59,319 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 22:16:59,441 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 22:16:59,441 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 22:16:59,441 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 22:16:59,443 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [462106265] [2022-11-25 22:16:59,444 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-25 22:16:59,444 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [58637508] [2022-11-25 22:16:59,444 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [58637508] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 22:16:59,445 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 22:16:59,445 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-25 22:16:59,446 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1227856048] [2022-11-25 22:16:59,446 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:16:59,446 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 22:16:59,448 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 22:16:59,448 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 22:16:59,449 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 22:16:59,449 INFO L87 Difference]: Start difference. First operand 121 states and 146 transitions. Second operand has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 2 states have internal predecessors, (28), 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) [2022-11-25 22:17:00,201 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:17:00,201 INFO L93 Difference]: Finished difference Result 288 states and 352 transitions. [2022-11-25 22:17:00,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 22:17:00,205 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 2 states have internal predecessors, (28), 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 28 [2022-11-25 22:17:00,206 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:17:00,207 INFO L225 Difference]: With dead ends: 288 [2022-11-25 22:17:00,207 INFO L226 Difference]: Without dead ends: 172 [2022-11-25 22:17:00,207 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 22:17:00,208 INFO L413 NwaCegarLoop]: 147 mSDtfsCounter, 49 mSDsluCounter, 109 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 256 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-11-25 22:17:00,209 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [56 Valid, 256 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-11-25 22:17:00,210 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 172 states. [2022-11-25 22:17:00,223 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 172 to 168. [2022-11-25 22:17:00,224 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 168 states, 145 states have (on average 1.2620689655172415) internal successors, (183), 162 states have internal predecessors, (183), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 5 states have call predecessors, (13), 13 states have call successors, (13) [2022-11-25 22:17:00,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 168 states to 168 states and 209 transitions. [2022-11-25 22:17:00,225 INFO L78 Accepts]: Start accepts. Automaton has 168 states and 209 transitions. Word has length 28 [2022-11-25 22:17:00,225 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:17:00,226 INFO L495 AbstractCegarLoop]: Abstraction has 168 states and 209 transitions. [2022-11-25 22:17:00,226 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 2 states have internal predecessors, (28), 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) [2022-11-25 22:17:00,226 INFO L276 IsEmpty]: Start isEmpty. Operand 168 states and 209 transitions. [2022-11-25 22:17:00,227 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2022-11-25 22:17:00,227 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:17:00,227 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-11-25 22:17:00,239 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_507ef987-83a3-4c70-8536-b1fdfa3cafce/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-25 22:17:00,436 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_507ef987-83a3-4c70-8536-b1fdfa3cafce/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 22:17:00,436 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-25 22:17:00,437 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:17:00,437 INFO L85 PathProgramCache]: Analyzing trace with hash -1496687605, now seen corresponding path program 1 times [2022-11-25 22:17:00,437 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:17:00,437 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1775930174] [2022-11-25 22:17:00,437 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:17:00,437 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:17:00,506 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-25 22:17:00,507 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [293076765] [2022-11-25 22:17:00,507 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:17:00,508 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 22:17:00,508 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_507ef987-83a3-4c70-8536-b1fdfa3cafce/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 22:17:00,509 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_507ef987-83a3-4c70-8536-b1fdfa3cafce/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 22:17:00,535 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_507ef987-83a3-4c70-8536-b1fdfa3cafce/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-25 22:17:14,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:17:14,127 INFO L263 TraceCheckSpWp]: Trace formula consists of 715 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-25 22:17:14,130 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 22:17:14,150 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 22:17:14,150 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 22:17:14,150 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 22:17:14,150 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1775930174] [2022-11-25 22:17:14,150 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-25 22:17:14,151 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [293076765] [2022-11-25 22:17:14,151 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [293076765] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 22:17:14,151 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 22:17:14,151 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-25 22:17:14,152 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2130452368] [2022-11-25 22:17:14,152 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:17:14,152 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-25 22:17:14,152 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 22:17:14,153 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-25 22:17:14,154 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-25 22:17:14,154 INFO L87 Difference]: Start difference. First operand 168 states and 209 transitions. Second operand has 4 states, 3 states have (on average 12.333333333333334) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-25 22:17:15,726 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:17:15,726 INFO L93 Difference]: Finished difference Result 320 states and 404 transitions. [2022-11-25 22:17:15,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-25 22:17:15,731 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 12.333333333333334) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 41 [2022-11-25 22:17:15,731 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:17:15,732 INFO L225 Difference]: With dead ends: 320 [2022-11-25 22:17:15,732 INFO L226 Difference]: Without dead ends: 170 [2022-11-25 22:17:15,733 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-25 22:17:15,734 INFO L413 NwaCegarLoop]: 127 mSDtfsCounter, 1 mSDsluCounter, 250 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 377 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-11-25 22:17:15,743 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 377 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2022-11-25 22:17:15,744 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 170 states. [2022-11-25 22:17:15,763 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 170 to 170. [2022-11-25 22:17:15,764 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 170 states, 146 states have (on average 1.2671232876712328) internal successors, (185), 164 states have internal predecessors, (185), 13 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (14), 5 states have call predecessors, (14), 13 states have call successors, (14) [2022-11-25 22:17:15,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 170 states to 170 states and 212 transitions. [2022-11-25 22:17:15,765 INFO L78 Accepts]: Start accepts. Automaton has 170 states and 212 transitions. Word has length 41 [2022-11-25 22:17:15,766 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:17:15,766 INFO L495 AbstractCegarLoop]: Abstraction has 170 states and 212 transitions. [2022-11-25 22:17:15,766 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 12.333333333333334) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-25 22:17:15,766 INFO L276 IsEmpty]: Start isEmpty. Operand 170 states and 212 transitions. [2022-11-25 22:17:15,767 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2022-11-25 22:17:15,767 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:17:15,767 INFO L195 NwaCegarLoop]: 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] [2022-11-25 22:17:15,800 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_507ef987-83a3-4c70-8536-b1fdfa3cafce/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-25 22:17:15,988 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_507ef987-83a3-4c70-8536-b1fdfa3cafce/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable3 [2022-11-25 22:17:15,988 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-25 22:17:15,989 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:17:15,989 INFO L85 PathProgramCache]: Analyzing trace with hash 1899561301, now seen corresponding path program 1 times [2022-11-25 22:17:15,989 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:17:15,989 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [797731891] [2022-11-25 22:17:15,989 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:17:15,989 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:17:16,120 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-25 22:17:16,121 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1231582765] [2022-11-25 22:17:16,121 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:17:16,121 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 22:17:16,122 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_507ef987-83a3-4c70-8536-b1fdfa3cafce/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 22:17:16,123 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_507ef987-83a3-4c70-8536-b1fdfa3cafce/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 22:17:16,143 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_507ef987-83a3-4c70-8536-b1fdfa3cafce/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-25 22:17:40,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:17:40,196 INFO L263 TraceCheckSpWp]: Trace formula consists of 745 conjuncts, 12 conjunts are in the unsatisfiable core [2022-11-25 22:17:40,200 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 22:17:40,259 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-25 22:17:40,259 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 22:17:40,407 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 5 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-25 22:17:40,408 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 22:17:40,408 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [797731891] [2022-11-25 22:17:40,408 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-25 22:17:40,408 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1231582765] [2022-11-25 22:17:40,409 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1231582765] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 22:17:40,409 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2046223317] [2022-11-25 22:17:40,438 INFO L159 IcfgInterpreter]: Started Sifa with 39 locations of interest [2022-11-25 22:17:40,438 INFO L166 IcfgInterpreter]: Building call graph [2022-11-25 22:17:40,441 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-25 22:17:40,447 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-25 22:17:40,447 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-25 22:17:40,514 INFO L350 Elim1Store]: Elim1 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 [2022-11-25 22:17:40,520 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:17:40,535 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-11-25 22:17:40,535 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 17 treesize of output 26 [2022-11-25 22:17:40,544 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:17:40,545 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 28 [2022-11-25 22:17:40,554 INFO L350 Elim1Store]: Elim1 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 [2022-11-25 22:17:40,562 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:17:40,578 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-25 22:17:40,579 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 27 treesize of output 37 [2022-11-25 22:17:40,633 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:17:40,636 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:17:40,650 INFO L321 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2022-11-25 22:17:40,653 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 37 treesize of output 42 [2022-11-25 22:17:40,667 INFO L350 Elim1Store]: Elim1 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 [2022-11-25 22:17:40,679 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:17:40,680 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:17:40,721 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-11-25 22:17:40,721 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 8 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 32 treesize of output 49 [2022-11-25 22:17:40,735 INFO L350 Elim1Store]: Elim1 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 15 treesize of output 1 [2022-11-25 22:17:40,750 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:17:40,751 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:17:40,754 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 8 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 30 [2022-11-25 22:17:40,805 INFO L350 Elim1Store]: Elim1 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 [2022-11-25 22:17:40,814 INFO L350 Elim1Store]: Elim1 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 [2022-11-25 22:17:40,826 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:17:40,827 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:17:40,828 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:17:40,831 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 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 84 treesize of output 64 [2022-11-25 22:17:41,364 INFO L350 Elim1Store]: Elim1 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 [2022-11-25 22:17:41,388 INFO L350 Elim1Store]: Elim1 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 [2022-11-25 22:17:41,444 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:17:41,445 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:17:41,446 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:17:41,448 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:17:41,449 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:17:41,450 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:17:41,451 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:17:41,453 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:17:41,454 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:17:41,455 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:17:41,457 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:17:41,458 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:17:41,460 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:17:41,461 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:17:41,462 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:17:41,481 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 29 disjoint index pairs (out of 36 index pairs), introduced 8 new quantified variables, introduced 0 case distinctions, treesize of input 9896995 treesize of output 5376286 [2022-11-25 22:17:41,513 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:17:41,515 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:17:41,516 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:17:41,518 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:17:41,520 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:17:41,521 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:17:41,522 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:17:41,523 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:17:41,524 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:17:41,525 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:17:41,526 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:17:41,527 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:17:41,528 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:17:41,529 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:17:41,530 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:17:41,535 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 29 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 9896993 treesize of output 5376298 [2022-11-25 22:17:41,621 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:17:41,622 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:17:41,623 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:17:41,624 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:17:41,626 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:17:41,628 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:17:41,629 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:17:41,630 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:17:41,631 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:17:41,632 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:17:41,634 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:17:41,635 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:17:41,636 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:17:41,642 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:17:41,643 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:17:41,644 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:17:41,645 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:17:41,647 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:17:41,648 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:17:41,667 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 10 select indices, 10 select index equivalence classes, 36 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 0 case distinctions, treesize of input 8458592 treesize of output 4759837 [2022-11-25 22:17:41,701 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:17:41,702 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:17:41,703 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:17:41,704 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:17:41,705 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:17:41,707 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:17:41,708 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:17:41,709 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:17:41,710 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:17:41,711 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:17:41,712 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:17:41,713 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:17:41,714 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:17:41,716 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:17:41,717 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:17:41,718 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:17:41,719 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:17:41,720 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:17:41,722 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:17:41,725 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 10 select indices, 10 select index equivalence classes, 36 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 0 case distinctions, treesize of input 8458592 treesize of output 4759837 [2022-11-25 22:17:41,758 INFO L350 Elim1Store]: Elim1 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 [2022-11-25 22:17:41,775 INFO L350 Elim1Store]: Elim1 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 [2022-11-25 22:17:41,841 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 10 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 [2022-11-25 22:17:41,856 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:17:41,860 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:17:41,862 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:17:41,925 INFO L321 Elim1Store]: treesize reduction 90, result has 33.8 percent of original size [2022-11-25 22:17:41,925 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 12 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 6 case distinctions, treesize of input 49 treesize of output 85 [2022-11-25 22:17:41,949 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:17:41,951 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:17:41,952 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:17:41,953 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 13 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 44 [2022-11-25 22:17:41,986 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:17:41,987 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:17:41,988 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:17:41,990 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:17:41,991 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:17:41,992 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:17:41,993 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:17:41,994 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:17:41,996 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:17:41,997 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:17:41,998 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:17:41,999 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:17:42,032 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:17:42,034 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:17:42,035 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:17:42,036 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:17:42,037 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:17:42,038 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:17:42,039 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:17:42,044 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 10 select indices, 10 select index equivalence classes, 36 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 0 case distinctions, treesize of input 8458592 treesize of output 4759837 [2022-11-25 22:17:42,089 INFO L350 Elim1Store]: Elim1 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 [2022-11-25 22:17:42,297 INFO L350 Elim1Store]: Elim1 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 [2022-11-25 22:17:42,303 INFO L350 Elim1Store]: Elim1 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 [2022-11-25 22:17:42,310 INFO L350 Elim1Store]: Elim1 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 [2022-11-25 22:17:42,334 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 66 treesize of output 65 [2022-11-25 22:17:42,342 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 64 treesize of output 63 [2022-11-25 22:17:42,349 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 64 treesize of output 63 [2022-11-25 22:17:42,369 INFO L350 Elim1Store]: Elim1 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 [2022-11-25 22:17:42,374 INFO L350 Elim1Store]: Elim1 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 [2022-11-25 22:17:42,380 INFO L350 Elim1Store]: Elim1 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 [2022-11-25 22:17:42,441 INFO L350 Elim1Store]: Elim1 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 [2022-11-25 22:17:42,468 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:17:42,469 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:17:42,470 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:17:42,471 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:17:42,472 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:17:42,473 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:17:42,474 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:17:42,475 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:17:42,476 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:17:42,477 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:17:42,478 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:17:42,479 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:17:42,480 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:17:42,481 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:17:42,482 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:17:42,483 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:17:42,484 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:17:42,487 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 10 select indices, 10 select index equivalence classes, 30 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 0 case distinctions, treesize of input 8458573 treesize of output 4759755 [2022-11-25 22:17:42,530 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 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 46 treesize of output 16 [2022-11-25 22:17:42,726 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:17:42,727 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:17:42,728 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:17:42,729 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:17:42,731 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:17:42,734 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:17:42,735 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:17:42,736 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:17:42,737 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:17:42,738 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:17:42,739 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:17:42,740 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:17:42,741 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:17:42,742 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:17:42,743 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:17:42,744 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:17:42,745 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:17:42,748 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 10 select indices, 10 select index equivalence classes, 29 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 0 case distinctions, treesize of input 8458573 treesize of output 4759755 [2022-11-25 22:17:42,772 INFO L350 Elim1Store]: Elim1 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 [2022-11-25 22:17:42,793 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 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 46 treesize of output 16 [2022-11-25 22:17:44,091 INFO L217 Elim1Store]: Index analysis took 944 ms [2022-11-25 22:17:50,856 WARN L233 SmtUtils]: Spent 6.76s on a formula simplification. DAG size of input: 109 DAG size of output: 31 (called from [L 318] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2022-11-25 22:17:50,857 INFO L321 Elim1Store]: treesize reduction 190, result has 18.1 percent of original size [2022-11-25 22:17:50,858 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 7 select indices, 7 select index equivalence classes, 4 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 22 case distinctions, treesize of input 9519777 treesize of output 9519796 [2022-11-25 22:17:53,794 INFO L217 Elim1Store]: Index analysis took 2709 ms [2022-11-25 22:17:55,762 INFO L321 Elim1Store]: treesize reduction 87, result has 5.4 percent of original size [2022-11-25 22:17:55,763 INFO L350 Elim1Store]: Elim1 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 10 case distinctions, treesize of input 9519772 treesize of output 9519776 [2022-11-25 22:18:07,599 WARN L233 SmtUtils]: Spent 11.69s on a formula simplification. DAG size of input: 67 DAG size of output: 32 (called from [L 318] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2022-11-25 22:18:07,600 INFO L321 Elim1Store]: treesize reduction 340, result has 16.0 percent of original size [2022-11-25 22:18:07,601 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 1986 treesize of output 1476 [2022-11-25 22:18:08,040 INFO L217 Elim1Store]: Index analysis took 231 ms [2022-11-25 22:18:34,941 WARN L233 SmtUtils]: Spent 26.90s on a formula simplification. DAG size of input: 90 DAG size of output: 45 (called from [L 318] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2022-11-25 22:18:34,941 INFO L321 Elim1Store]: treesize reduction 266, result has 31.6 percent of original size [2022-11-25 22:18:34,942 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 4 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 7 new quantified variables, introduced 8 case distinctions, treesize of input 2005 treesize of output 1814 [2022-11-25 22:18:36,477 INFO L217 Elim1Store]: Index analysis took 776 ms [2022-11-25 22:19:07,579 WARN L233 SmtUtils]: Spent 30.23s on a formula simplification. DAG size of input: 261 DAG size of output: 159 (called from [L 318] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2022-11-25 22:19:07,579 INFO L321 Elim1Store]: treesize reduction 22290, result has 25.6 percent of original size [2022-11-25 22:19:07,580 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 4 stores, 0 select indices, 0 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 4 new quantified variables, introduced 16 case distinctions, treesize of input 5638 treesize of output 15985 [2022-11-25 22:19:08,509 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:19:08,513 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 23 treesize of output 15 [2022-11-25 22:19:08,800 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-25 22:19:08,862 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-25 22:19:08,992 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:19:09,081 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:19:09,083 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 70 treesize of output 61 [2022-11-25 22:19:09,157 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:19:09,157 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:19:09,160 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 28 [2022-11-25 22:19:09,387 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:19:09,389 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 90 treesize of output 69 [2022-11-25 22:19:09,526 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:19:09,527 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:19:09,529 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 69 treesize of output 55 [2022-11-25 22:19:11,510 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:19:11,511 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 17 treesize of output 11 [2022-11-25 22:19:34,438 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-25 22:20:23,609 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:20:23,621 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:20:23,622 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 20 [2022-11-25 22:20:50,821 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:20:50,822 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 19 treesize of output 13