./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test8-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability 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_4a40792d-c8c0-4886-9802-00c2a08b6e35/bin/utaipan-ByfvJB40ur/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a40792d-c8c0-4886-9802-00c2a08b6e35/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_4a40792d-c8c0-4886-9802-00c2a08b6e35/bin/utaipan-ByfvJB40ur/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a40792d-c8c0-4886-9802-00c2a08b6e35/bin/utaipan-ByfvJB40ur/config/TaipanReach.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test8-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a40792d-c8c0-4886-9802-00c2a08b6e35/bin/utaipan-ByfvJB40ur/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a40792d-c8c0-4886-9802-00c2a08b6e35/bin/utaipan-ByfvJB40ur --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash b6c6a722152c52daf4f5e799c877f12032a99023b4a9ea1a935c1ce634969e85 --- 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 [2022-11-26 00:56:38,361 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-26 00:56:38,364 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-26 00:56:38,391 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-26 00:56:38,392 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-26 00:56:38,396 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-26 00:56:38,398 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-26 00:56:38,402 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-26 00:56:38,404 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-26 00:56:38,410 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-26 00:56:38,412 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-26 00:56:38,414 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-26 00:56:38,415 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-26 00:56:38,417 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-26 00:56:38,420 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-26 00:56:38,425 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-26 00:56:38,426 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-26 00:56:38,427 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-26 00:56:38,429 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-26 00:56:38,433 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-26 00:56:38,435 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-26 00:56:38,438 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-26 00:56:38,439 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-26 00:56:38,440 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-26 00:56:38,450 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-26 00:56:38,452 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-26 00:56:38,453 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-26 00:56:38,454 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-26 00:56:38,455 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-26 00:56:38,456 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-26 00:56:38,457 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-26 00:56:38,458 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-26 00:56:38,460 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-26 00:56:38,461 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-26 00:56:38,462 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-26 00:56:38,463 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-26 00:56:38,463 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-26 00:56:38,464 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-26 00:56:38,464 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-26 00:56:38,465 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-26 00:56:38,466 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-26 00:56:38,467 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a40792d-c8c0-4886-9802-00c2a08b6e35/bin/utaipan-ByfvJB40ur/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-11-26 00:56:38,507 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-26 00:56:38,508 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-26 00:56:38,509 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-26 00:56:38,509 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-26 00:56:38,510 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-26 00:56:38,510 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-26 00:56:38,510 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-26 00:56:38,511 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-26 00:56:38,511 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-26 00:56:38,511 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-26 00:56:38,512 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-26 00:56:38,512 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-26 00:56:38,513 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-26 00:56:38,513 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-26 00:56:38,513 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-26 00:56:38,513 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-26 00:56:38,513 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-26 00:56:38,514 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-26 00:56:38,514 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-26 00:56:38,515 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-26 00:56:38,515 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-26 00:56:38,515 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-26 00:56:38,515 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-26 00:56:38,516 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-26 00:56:38,516 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-26 00:56:38,516 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-26 00:56:38,516 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-26 00:56:38,516 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-26 00:56:38,517 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-26 00:56:38,517 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-26 00:56:38,517 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-26 00:56:38,517 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-26 00:56:38,518 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-26 00:56:38,518 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-26 00:56:38,518 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-26 00:56:38,518 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-26 00:56:38,519 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-26 00:56:38,519 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-26 00:56:38,519 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-26 00:56:38,519 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-26 00:56:38,519 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-26 00:56:38,520 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_4a40792d-c8c0-4886-9802-00c2a08b6e35/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a40792d-c8c0-4886-9802-00c2a08b6e35/bin/utaipan-ByfvJB40ur Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b6c6a722152c52daf4f5e799c877f12032a99023b4a9ea1a935c1ce634969e85 [2022-11-26 00:56:38,828 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-26 00:56:38,862 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-26 00:56:38,865 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-26 00:56:38,866 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-26 00:56:38,867 INFO L275 PluginConnector]: CDTParser initialized [2022-11-26 00:56:38,868 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a40792d-c8c0-4886-9802-00c2a08b6e35/bin/utaipan-ByfvJB40ur/../../sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test8-1.i [2022-11-26 00:56:41,982 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-26 00:56:42,400 INFO L351 CDTParser]: Found 1 translation units. [2022-11-26 00:56:42,400 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a40792d-c8c0-4886-9802-00c2a08b6e35/sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test8-1.i [2022-11-26 00:56:42,419 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a40792d-c8c0-4886-9802-00c2a08b6e35/bin/utaipan-ByfvJB40ur/data/0942fea52/82d24f4c2cba4ad593d5dd940e831dbd/FLAGa6a13d064 [2022-11-26 00:56:42,440 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a40792d-c8c0-4886-9802-00c2a08b6e35/bin/utaipan-ByfvJB40ur/data/0942fea52/82d24f4c2cba4ad593d5dd940e831dbd [2022-11-26 00:56:42,444 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-26 00:56:42,445 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-26 00:56:42,450 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-26 00:56:42,450 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-26 00:56:42,454 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-26 00:56:42,455 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 12:56:42" (1/1) ... [2022-11-26 00:56:42,457 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2baa1e12 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:56:42, skipping insertion in model container [2022-11-26 00:56:42,458 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 12:56:42" (1/1) ... [2022-11-26 00:56:42,467 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-26 00:56:42,552 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-26 00:56:43,089 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_4a40792d-c8c0-4886-9802-00c2a08b6e35/sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test8-1.i[33021,33034] [2022-11-26 00:56:43,228 WARN L623 FunctionHandler]: Unknown extern function memcmp [2022-11-26 00:56:43,241 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_4a40792d-c8c0-4886-9802-00c2a08b6e35/sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test8-1.i[45234,45247] [2022-11-26 00:56:43,247 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-26 00:56:43,257 INFO L203 MainTranslator]: Completed pre-run [2022-11-26 00:56:43,289 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_4a40792d-c8c0-4886-9802-00c2a08b6e35/sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test8-1.i[33021,33034] [2022-11-26 00:56:43,354 WARN L623 FunctionHandler]: Unknown extern function memcmp [2022-11-26 00:56:43,366 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_4a40792d-c8c0-4886-9802-00c2a08b6e35/sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test8-1.i[45234,45247] [2022-11-26 00:56:43,371 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-26 00:56:43,440 INFO L208 MainTranslator]: Completed translation [2022-11-26 00:56:43,440 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:56:43 WrapperNode [2022-11-26 00:56:43,440 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-26 00:56:43,442 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-26 00:56:43,442 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-26 00:56:43,442 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-26 00:56:43,455 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:56:43" (1/1) ... [2022-11-26 00:56:43,495 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:56:43" (1/1) ... [2022-11-26 00:56:43,560 INFO L138 Inliner]: procedures = 177, calls = 297, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 992 [2022-11-26 00:56:43,560 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-26 00:56:43,561 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-26 00:56:43,561 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-26 00:56:43,561 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-26 00:56:43,572 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:56:43" (1/1) ... [2022-11-26 00:56:43,573 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:56:43" (1/1) ... [2022-11-26 00:56:43,597 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:56:43" (1/1) ... [2022-11-26 00:56:43,597 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:56:43" (1/1) ... [2022-11-26 00:56:43,671 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:56:43" (1/1) ... [2022-11-26 00:56:43,681 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:56:43" (1/1) ... [2022-11-26 00:56:43,701 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:56:43" (1/1) ... [2022-11-26 00:56:43,705 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:56:43" (1/1) ... [2022-11-26 00:56:43,721 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-26 00:56:43,722 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-26 00:56:43,722 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-26 00:56:43,722 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-26 00:56:43,723 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:56:43" (1/1) ... [2022-11-26 00:56:43,732 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-26 00:56:43,744 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a40792d-c8c0-4886-9802-00c2a08b6e35/bin/utaipan-ByfvJB40ur/z3 [2022-11-26 00:56:43,769 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a40792d-c8c0-4886-9802-00c2a08b6e35/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-26 00:56:43,783 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a40792d-c8c0-4886-9802-00c2a08b6e35/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-26 00:56:43,823 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-26 00:56:43,823 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-11-26 00:56:43,823 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-11-26 00:56:43,823 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-26 00:56:43,823 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-26 00:56:43,823 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-26 00:56:43,824 INFO L130 BoogieDeclarations]: Found specification of procedure test_int [2022-11-26 00:56:43,824 INFO L138 BoogieDeclarations]: Found implementation of procedure test_int [2022-11-26 00:56:43,824 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-26 00:56:43,824 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-26 00:56:43,824 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-26 00:56:43,825 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-26 00:56:43,826 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2022-11-26 00:56:43,826 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-26 00:56:43,826 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-26 00:56:43,826 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-26 00:56:43,827 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-26 00:56:43,827 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-26 00:56:44,115 INFO L235 CfgBuilder]: Building ICFG [2022-11-26 00:56:44,117 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-26 00:56:45,957 INFO L276 CfgBuilder]: Performing block encoding [2022-11-26 00:56:46,355 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-26 00:56:46,356 INFO L300 CfgBuilder]: Removed 62 assume(true) statements. [2022-11-26 00:56:46,359 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:56:46 BoogieIcfgContainer [2022-11-26 00:56:46,359 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-26 00:56:46,365 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-26 00:56:46,365 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-26 00:56:46,369 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-26 00:56:46,370 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 12:56:42" (1/3) ... [2022-11-26 00:56:46,372 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@497c8da7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 12:56:46, skipping insertion in model container [2022-11-26 00:56:46,372 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:56:43" (2/3) ... [2022-11-26 00:56:46,373 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@497c8da7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 12:56:46, skipping insertion in model container [2022-11-26 00:56:46,373 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:56:46" (3/3) ... [2022-11-26 00:56:46,374 INFO L112 eAbstractionObserver]: Analyzing ICFG uthash_FNV_test8-1.i [2022-11-26 00:56:46,395 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-26 00:56:46,396 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-11-26 00:56:46,449 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-26 00:56:46,457 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;@6c3b1234, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-26 00:56:46,457 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-11-26 00:56:46,463 INFO L276 IsEmpty]: Start isEmpty. Operand has 148 states, 122 states have (on average 1.7950819672131149) internal successors, (219), 139 states have internal predecessors, (219), 20 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (20), 6 states have call predecessors, (20), 20 states have call successors, (20) [2022-11-26 00:56:46,471 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-26 00:56:46,471 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:56:46,472 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:56:46,472 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-26 00:56:46,478 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:56:46,478 INFO L85 PathProgramCache]: Analyzing trace with hash 888261009, now seen corresponding path program 1 times [2022-11-26 00:56:46,489 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:56:46,489 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1602498704] [2022-11-26 00:56:46,490 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:56:46,490 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:56:46,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:56:46,653 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:56:46,654 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:56:46,654 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1602498704] [2022-11-26 00:56:46,655 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1602498704] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:56:46,655 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:56:46,655 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-26 00:56:46,657 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1143241939] [2022-11-26 00:56:46,657 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:56:46,662 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-26 00:56:46,662 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:56:46,690 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-26 00:56:46,691 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-26 00:56:46,694 INFO L87 Difference]: Start difference. First operand has 148 states, 122 states have (on average 1.7950819672131149) internal successors, (219), 139 states have internal predecessors, (219), 20 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (20), 6 states have call predecessors, (20), 20 states have call successors, (20) Second operand has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 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) [2022-11-26 00:56:47,839 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:56:47,839 INFO L93 Difference]: Finished difference Result 295 states and 534 transitions. [2022-11-26 00:56:47,841 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-26 00:56:47,842 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 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 8 [2022-11-26 00:56:47,842 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:56:47,853 INFO L225 Difference]: With dead ends: 295 [2022-11-26 00:56:47,853 INFO L226 Difference]: Without dead ends: 146 [2022-11-26 00:56:47,858 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-26 00:56:47,862 INFO L413 NwaCegarLoop]: 178 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 178 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-11-26 00:56:47,864 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 178 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-11-26 00:56:47,884 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146 states. [2022-11-26 00:56:47,914 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146 to 146. [2022-11-26 00:56:47,916 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 146 states, 121 states have (on average 1.2727272727272727) internal successors, (154), 137 states have internal predecessors, (154), 20 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (20), 6 states have call predecessors, (20), 20 states have call successors, (20) [2022-11-26 00:56:47,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 146 states and 194 transitions. [2022-11-26 00:56:47,921 INFO L78 Accepts]: Start accepts. Automaton has 146 states and 194 transitions. Word has length 8 [2022-11-26 00:56:47,921 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:56:47,922 INFO L495 AbstractCegarLoop]: Abstraction has 146 states and 194 transitions. [2022-11-26 00:56:47,922 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 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) [2022-11-26 00:56:47,922 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 194 transitions. [2022-11-26 00:56:47,924 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-11-26 00:56:47,924 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:56:47,925 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] [2022-11-26 00:56:47,925 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-26 00:56:47,925 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-26 00:56:47,926 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:56:47,926 INFO L85 PathProgramCache]: Analyzing trace with hash -1250356048, now seen corresponding path program 1 times [2022-11-26 00:56:47,927 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:56:47,927 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1861424362] [2022-11-26 00:56:47,927 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:56:47,927 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:56:47,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:56:48,419 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:56:48,421 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:56:48,421 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1861424362] [2022-11-26 00:56:48,421 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1861424362] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:56:48,422 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:56:48,422 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-26 00:56:48,422 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [195737987] [2022-11-26 00:56:48,423 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:56:48,426 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-26 00:56:48,430 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:56:48,432 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-26 00:56:48,432 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-26 00:56:48,433 INFO L87 Difference]: Start difference. First operand 146 states and 194 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) [2022-11-26 00:56:50,838 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:56:50,838 INFO L93 Difference]: Finished difference Result 293 states and 390 transitions. [2022-11-26 00:56:50,840 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-26 00:56:50,841 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 [2022-11-26 00:56:50,841 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:56:50,843 INFO L225 Difference]: With dead ends: 293 [2022-11-26 00:56:50,844 INFO L226 Difference]: Without dead ends: 202 [2022-11-26 00:56:50,845 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 [2022-11-26 00:56:50,846 INFO L413 NwaCegarLoop]: 167 mSDtfsCounter, 60 mSDsluCounter, 313 mSDsCounter, 0 mSdLazyCounter, 102 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 480 SdHoareTripleChecker+Invalid, 104 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 102 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-11-26 00:56:50,847 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [61 Valid, 480 Invalid, 104 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 102 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2022-11-26 00:56:50,848 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 202 states. [2022-11-26 00:56:50,864 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 202 to 148. [2022-11-26 00:56:50,869 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 148 states, 123 states have (on average 1.2682926829268293) internal successors, (156), 139 states have internal predecessors, (156), 20 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (20), 6 states have call predecessors, (20), 20 states have call successors, (20) [2022-11-26 00:56:50,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 148 states and 196 transitions. [2022-11-26 00:56:50,882 INFO L78 Accepts]: Start accepts. Automaton has 148 states and 196 transitions. Word has length 20 [2022-11-26 00:56:50,882 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:56:50,883 INFO L495 AbstractCegarLoop]: Abstraction has 148 states and 196 transitions. [2022-11-26 00:56:50,883 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) [2022-11-26 00:56:50,883 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 196 transitions. [2022-11-26 00:56:50,884 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-26 00:56:50,885 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:56:50,885 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, 1, 1, 1, 1] [2022-11-26 00:56:50,886 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-26 00:56:50,886 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-26 00:56:50,887 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:56:50,887 INFO L85 PathProgramCache]: Analyzing trace with hash -1118312460, now seen corresponding path program 1 times [2022-11-26 00:56:50,887 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:56:50,888 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1201364722] [2022-11-26 00:56:50,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:56:50,888 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:56:51,068 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-26 00:56:51,069 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [455803982] [2022-11-26 00:56:51,069 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:56:51,069 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-26 00:56:51,070 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a40792d-c8c0-4886-9802-00c2a08b6e35/bin/utaipan-ByfvJB40ur/z3 [2022-11-26 00:56:51,075 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a40792d-c8c0-4886-9802-00c2a08b6e35/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-26 00:56:51,114 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a40792d-c8c0-4886-9802-00c2a08b6e35/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-26 00:56:51,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:56:52,022 INFO L263 TraceCheckSpWp]: Trace formula consists of 1597 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-26 00:56:52,033 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 00:56:52,137 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:56:52,142 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-26 00:56:52,142 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:56:52,143 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1201364722] [2022-11-26 00:56:52,144 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-26 00:56:52,144 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [455803982] [2022-11-26 00:56:52,147 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [455803982] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:56:52,150 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:56:52,150 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-26 00:56:52,151 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [965210307] [2022-11-26 00:56:52,151 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:56:52,151 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-26 00:56:52,152 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:56:52,153 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-26 00:56:52,153 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-26 00:56:52,154 INFO L87 Difference]: Start difference. First operand 148 states and 196 transitions. Second operand has 3 states, 3 states have (on average 10.0) internal successors, (30), 2 states have internal predecessors, (30), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:56:53,998 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.16s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-26 00:56:54,278 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:56:54,278 INFO L93 Difference]: Finished difference Result 341 states and 444 transitions. [2022-11-26 00:56:54,279 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-26 00:56:54,279 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 2 states have internal predecessors, (30), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 32 [2022-11-26 00:56:54,280 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:56:54,281 INFO L225 Difference]: With dead ends: 341 [2022-11-26 00:56:54,282 INFO L226 Difference]: Without dead ends: 196 [2022-11-26 00:56:54,283 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-26 00:56:54,284 INFO L413 NwaCegarLoop]: 189 mSDtfsCounter, 45 mSDsluCounter, 152 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 341 SdHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2022-11-26 00:56:54,284 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [48 Valid, 341 Invalid, 59 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 54 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2022-11-26 00:56:54,288 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 196 states. [2022-11-26 00:56:54,315 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 196 to 193. [2022-11-26 00:56:54,316 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 193 states, 167 states have (on average 1.2275449101796407) internal successors, (205), 183 states have internal predecessors, (205), 21 states have call successors, (21), 3 states have call predecessors, (21), 3 states have return successors, (21), 7 states have call predecessors, (21), 21 states have call successors, (21) [2022-11-26 00:56:54,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 193 states to 193 states and 247 transitions. [2022-11-26 00:56:54,318 INFO L78 Accepts]: Start accepts. Automaton has 193 states and 247 transitions. Word has length 32 [2022-11-26 00:56:54,319 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:56:54,319 INFO L495 AbstractCegarLoop]: Abstraction has 193 states and 247 transitions. [2022-11-26 00:56:54,319 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 2 states have internal predecessors, (30), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:56:54,320 INFO L276 IsEmpty]: Start isEmpty. Operand 193 states and 247 transitions. [2022-11-26 00:56:54,321 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2022-11-26 00:56:54,321 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:56:54,322 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, 1, 1, 1, 1] [2022-11-26 00:56:54,339 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a40792d-c8c0-4886-9802-00c2a08b6e35/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-26 00:56:54,535 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a40792d-c8c0-4886-9802-00c2a08b6e35/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-26 00:56:54,536 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-26 00:56:54,537 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:56:54,537 INFO L85 PathProgramCache]: Analyzing trace with hash -119168274, now seen corresponding path program 1 times [2022-11-26 00:56:54,537 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:56:54,538 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1917331305] [2022-11-26 00:56:54,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:56:54,538 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:56:54,617 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-26 00:56:54,618 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [820821190] [2022-11-26 00:56:54,618 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:56:54,619 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-26 00:56:54,619 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a40792d-c8c0-4886-9802-00c2a08b6e35/bin/utaipan-ByfvJB40ur/z3 [2022-11-26 00:56:54,620 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a40792d-c8c0-4886-9802-00c2a08b6e35/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-26 00:56:54,639 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a40792d-c8c0-4886-9802-00c2a08b6e35/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-26 00:57:13,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:57:13,954 INFO L263 TraceCheckSpWp]: Trace formula consists of 734 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-26 00:57:13,959 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 00:57:14,003 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:57:14,004 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-26 00:57:14,004 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:57:14,004 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1917331305] [2022-11-26 00:57:14,005 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-26 00:57:14,005 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [820821190] [2022-11-26 00:57:14,005 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [820821190] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:57:14,005 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:57:14,006 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-26 00:57:14,006 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [294660193] [2022-11-26 00:57:14,006 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:57:14,007 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-26 00:57:14,007 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:57:14,008 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-26 00:57:14,008 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-26 00:57:14,009 INFO L87 Difference]: Start difference. First operand 193 states and 247 transitions. Second operand has 4 states, 3 states have (on average 13.0) internal successors, (39), 4 states have internal predecessors, (39), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-26 00:57:15,678 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:57:15,678 INFO L93 Difference]: Finished difference Result 372 states and 482 transitions. [2022-11-26 00:57:15,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-26 00:57:15,684 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 13.0) internal successors, (39), 4 states have internal predecessors, (39), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 45 [2022-11-26 00:57:15,684 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:57:15,686 INFO L225 Difference]: With dead ends: 372 [2022-11-26 00:57:15,686 INFO L226 Difference]: Without dead ends: 195 [2022-11-26 00:57:15,687 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-26 00:57:15,688 INFO L413 NwaCegarLoop]: 175 mSDtfsCounter, 1 mSDsluCounter, 346 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 521 SdHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 60 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-11-26 00:57:15,688 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 521 Invalid, 61 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2022-11-26 00:57:15,689 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 195 states. [2022-11-26 00:57:15,702 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 195 to 195. [2022-11-26 00:57:15,703 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 195 states, 168 states have (on average 1.2321428571428572) internal successors, (207), 185 states have internal predecessors, (207), 21 states have call successors, (21), 3 states have call predecessors, (21), 4 states have return successors, (22), 7 states have call predecessors, (22), 21 states have call successors, (22) [2022-11-26 00:57:15,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 195 states to 195 states and 250 transitions. [2022-11-26 00:57:15,705 INFO L78 Accepts]: Start accepts. Automaton has 195 states and 250 transitions. Word has length 45 [2022-11-26 00:57:15,705 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:57:15,705 INFO L495 AbstractCegarLoop]: Abstraction has 195 states and 250 transitions. [2022-11-26 00:57:15,706 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 13.0) internal successors, (39), 4 states have internal predecessors, (39), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-26 00:57:15,706 INFO L276 IsEmpty]: Start isEmpty. Operand 195 states and 250 transitions. [2022-11-26 00:57:15,707 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-11-26 00:57:15,708 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:57:15,708 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, 1, 1, 1, 1] [2022-11-26 00:57:15,740 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a40792d-c8c0-4886-9802-00c2a08b6e35/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-26 00:57:15,933 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a40792d-c8c0-4886-9802-00c2a08b6e35/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-26 00:57:15,933 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-26 00:57:15,934 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:57:15,934 INFO L85 PathProgramCache]: Analyzing trace with hash 1646850426, now seen corresponding path program 1 times [2022-11-26 00:57:15,934 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:57:15,934 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1792976431] [2022-11-26 00:57:15,934 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:57:15,935 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:57:16,018 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-26 00:57:16,019 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1270554957] [2022-11-26 00:57:16,019 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:57:16,019 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-26 00:57:16,019 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a40792d-c8c0-4886-9802-00c2a08b6e35/bin/utaipan-ByfvJB40ur/z3 [2022-11-26 00:57:16,021 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a40792d-c8c0-4886-9802-00c2a08b6e35/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-26 00:57:16,050 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a40792d-c8c0-4886-9802-00c2a08b6e35/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-26 00:57:19,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:57:19,184 INFO L263 TraceCheckSpWp]: Trace formula consists of 764 conjuncts, 12 conjunts are in the unsatisfiable core [2022-11-26 00:57:19,188 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 00:57:19,232 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-26 00:57:19,233 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-26 00:57:19,356 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 5 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-26 00:57:19,357 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:57:19,357 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1792976431] [2022-11-26 00:57:19,357 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-26 00:57:19,358 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1270554957] [2022-11-26 00:57:19,358 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1270554957] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-26 00:57:19,358 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1776407638] [2022-11-26 00:57:19,390 INFO L159 IcfgInterpreter]: Started Sifa with 43 locations of interest [2022-11-26 00:57:19,390 INFO L166 IcfgInterpreter]: Building call graph [2022-11-26 00:57:19,394 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-26 00:57:19,400 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-26 00:57:19,401 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-26 00:57:19,517 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 [2022-11-26 00:57:19,522 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 [2022-11-26 00:57:19,529 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:57:19,531 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 [2022-11-26 00:57:19,540 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:57:19,561 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-26 00:57:19,562 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 [2022-11-26 00:57:19,573 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:57:19,575 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 22 [2022-11-26 00:57:19,609 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:57:19,610 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:57:19,638 INFO L321 Elim1Store]: treesize reduction 20, result has 48.7 percent of original size [2022-11-26 00:57:19,639 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 2 case distinctions, treesize of input 22 treesize of output 38 [2022-11-26 00:57:19,659 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:57:19,661 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 7 [2022-11-26 00:57:19,669 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:57:19,671 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:57:19,710 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-11-26 00:57:19,711 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 [2022-11-26 00:57:19,726 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:57:19,733 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:57:19,734 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:57:19,736 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:57:19,738 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 52 treesize of output 49 [2022-11-26 00:57:19,761 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:57:19,762 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 7 [2022-11-26 00:57:20,361 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 [2022-11-26 00:57:20,393 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 [2022-11-26 00:57:20,422 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:57:20,424 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:57:20,425 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:57:20,427 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:57:20,429 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:57:20,436 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:57:20,437 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:57:20,439 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:57:20,441 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:57:20,442 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:57:20,444 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:57:20,445 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:57:20,447 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:57:20,449 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:57:20,450 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:57:20,471 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 9897009 treesize of output 5376288 [2022-11-26 00:57:20,513 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:57:20,514 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:57:20,516 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:57:20,518 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:57:20,519 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:57:20,521 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:57:20,523 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:57:20,525 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:57:20,526 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:57:20,528 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:57:20,529 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:57:20,531 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:57:20,533 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:57:20,534 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:57:20,536 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:57:20,540 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 8458577 treesize of output 4759834 [2022-11-26 00:57:20,632 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 [2022-11-26 00:57:20,647 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 [2022-11-26 00:57:20,674 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:57:20,676 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:57:20,677 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:57:20,678 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:57:20,680 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:57:20,681 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:57:20,683 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:57:20,684 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:57:20,685 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:57:20,687 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:57:20,688 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:57:20,690 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:57:20,691 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:57:20,693 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:57:20,694 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:57:20,695 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:57:20,697 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:57:20,698 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:57:20,699 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:57:20,721 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 [2022-11-26 00:57:20,758 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:57:20,759 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:57:20,761 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:57:20,762 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:57:20,764 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:57:20,765 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:57:20,766 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:57:20,768 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:57:20,769 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:57:20,770 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:57:20,772 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:57:20,773 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:57:20,774 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:57:20,776 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:57:20,777 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:57:20,779 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:57:20,780 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:57:20,781 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:57:20,782 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:57:20,784 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:57:20,785 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:57:20,788 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 [2022-11-26 00:57:20,914 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:57:20,915 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:57:20,916 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:57:20,918 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:57:20,919 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:57:20,920 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:57:20,921 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:57:20,922 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:57:20,924 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:57:20,925 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:57:20,926 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:57:20,928 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:57:20,929 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:57:20,930 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:57:20,932 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:57:20,933 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:57:20,934 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:57:20,935 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:57:20,936 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:57:20,940 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 [2022-11-26 00:57:20,985 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 [2022-11-26 00:57:21,002 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:57:21,007 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:57:21,008 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:57:21,067 INFO L321 Elim1Store]: treesize reduction 90, result has 33.8 percent of original size [2022-11-26 00:57:21,068 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 [2022-11-26 00:57:21,091 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:57:21,093 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:57:21,094 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:57:21,096 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 [2022-11-26 00:57:21,125 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 [2022-11-26 00:57:21,356 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 13 treesize of output 9 [2022-11-26 00:57:21,362 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 [2022-11-26 00:57:21,368 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 [2022-11-26 00:57:21,431 INFO L321 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2022-11-26 00:57:21,432 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 51 treesize of output 54 [2022-11-26 00:57:21,471 INFO L321 Elim1Store]: treesize reduction 15, result has 42.3 percent of original size [2022-11-26 00:57:21,472 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 49 treesize of output 52 [2022-11-26 00:57:21,510 INFO L321 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2022-11-26 00:57:21,511 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 43 treesize of output 46 [2022-11-26 00:57:21,557 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 [2022-11-26 00:57:21,563 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 [2022-11-26 00:57:21,571 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 [2022-11-26 00:57:21,653 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:57:21,655 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:57:21,656 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:57:21,658 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:57:21,660 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:57:21,661 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:57:21,663 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:57:21,664 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:57:21,666 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:57:21,667 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:57:21,669 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:57:21,670 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:57:21,671 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:57:21,673 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:57:21,674 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:57:21,676 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:57:21,677 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:57:21,680 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 [2022-11-26 00:57:21,711 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 [2022-11-26 00:57:21,733 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 [2022-11-26 00:57:21,988 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:57:21,989 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:57:21,991 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:57:21,992 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:57:21,993 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:57:21,995 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:57:21,996 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:57:21,997 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:57:21,999 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:57:22,000 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:57:22,002 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:57:22,003 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:57:22,004 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:57:22,006 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:57:22,007 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:57:22,008 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:57:22,009 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:57:22,012 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 [2022-11-26 00:57:22,042 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 [2022-11-26 00:57:22,063 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 [2022-11-26 00:57:23,184 INFO L217 Elim1Store]: Index analysis took 699 ms [2022-11-26 00:57:30,467 WARN L233 SmtUtils]: Spent 7.28s 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) [2022-11-26 00:57:30,468 INFO L321 Elim1Store]: treesize reduction 190, result has 18.1 percent of original size [2022-11-26 00:57:30,469 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 [2022-11-26 00:57:31,918 INFO L217 Elim1Store]: Index analysis took 856 ms [2022-11-26 00:57:32,680 INFO L321 Elim1Store]: treesize reduction 87, result has 5.4 percent of original size [2022-11-26 00:57:32,681 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 [2022-11-26 01:00:50,167 WARN L233 SmtUtils]: Spent 3.29m on a formula simplification. DAG size of input: 198 DAG size of output: 106 (called from [L 318] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2022-11-26 01:00:50,168 INFO L321 Elim1Store]: treesize reduction 1611, result has 24.6 percent of original size [2022-11-26 01:00:50,169 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 6 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 9 new quantified variables, introduced 18 case distinctions, treesize of input 7904 treesize of output 5832 [2022-11-26 01:00:50,835 INFO L217 Elim1Store]: Index analysis took 185 ms [2022-11-26 01:02:37,998 WARN L233 SmtUtils]: Spent 1.79m 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) [2022-11-26 01:02:37,998 INFO L321 Elim1Store]: treesize reduction 266, result has 31.6 percent of original size [2022-11-26 01:02:38,000 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 7180 treesize of output 5998 [2022-11-26 01:02:43,225 INFO L217 Elim1Store]: Index analysis took 3219 ms