./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test8-2.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_5582db89-68eb-4414-b8e9-3d516ee15bd4/bin/utaipan-ByfvJB40ur/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5582db89-68eb-4414-b8e9-3d516ee15bd4/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_5582db89-68eb-4414-b8e9-3d516ee15bd4/bin/utaipan-ByfvJB40ur/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5582db89-68eb-4414-b8e9-3d516ee15bd4/bin/utaipan-ByfvJB40ur/config/TaipanReach.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test8-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5582db89-68eb-4414-b8e9-3d516ee15bd4/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_5582db89-68eb-4414-b8e9-3d516ee15bd4/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 3011b5baaaedb6c621e2913d841379eae3b8a9da7212e43b784fc8c1004eda96 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-38b53e6 [2022-11-25 22:23:43,409 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-25 22:23:43,411 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-25 22:23:43,445 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-25 22:23:43,446 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-25 22:23:43,450 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-25 22:23:43,453 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-25 22:23:43,457 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-25 22:23:43,462 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-25 22:23:43,468 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-25 22:23:43,470 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-25 22:23:43,472 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-25 22:23:43,473 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-25 22:23:43,476 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-25 22:23:43,478 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-25 22:23:43,479 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-25 22:23:43,481 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-25 22:23:43,482 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-25 22:23:43,484 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-25 22:23:43,492 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-25 22:23:43,495 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-25 22:23:43,497 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-25 22:23:43,499 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-25 22:23:43,500 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-25 22:23:43,509 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-25 22:23:43,509 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-25 22:23:43,509 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-25 22:23:43,510 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-25 22:23:43,511 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-25 22:23:43,513 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-25 22:23:43,514 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-25 22:23:43,515 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-25 22:23:43,518 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-25 22:23:43,520 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-25 22:23:43,521 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-25 22:23:43,521 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-25 22:23:43,522 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-25 22:23:43,522 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-25 22:23:43,522 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-25 22:23:43,524 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-25 22:23:43,525 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-25 22:23:43,526 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5582db89-68eb-4414-b8e9-3d516ee15bd4/bin/utaipan-ByfvJB40ur/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-11-25 22:23:43,561 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-25 22:23:43,561 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-25 22:23:43,562 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-25 22:23:43,562 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-25 22:23:43,563 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-25 22:23:43,563 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-25 22:23:43,563 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-25 22:23:43,563 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-25 22:23:43,563 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-25 22:23:43,564 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-25 22:23:43,564 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-25 22:23:43,564 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-25 22:23:43,564 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-25 22:23:43,565 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-25 22:23:43,565 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-25 22:23:43,565 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-25 22:23:43,565 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-25 22:23:43,565 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-25 22:23:43,566 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-25 22:23:43,567 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-25 22:23:43,567 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-25 22:23:43,567 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-25 22:23:43,567 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-25 22:23:43,567 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-25 22:23:43,568 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-25 22:23:43,568 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-25 22:23:43,568 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-25 22:23:43,568 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-25 22:23:43,569 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-25 22:23:43,569 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-25 22:23:43,569 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-25 22:23:43,569 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-25 22:23:43,569 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 22:23:43,570 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-25 22:23:43,570 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-25 22:23:43,570 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-25 22:23:43,570 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-25 22:23:43,571 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-25 22:23:43,571 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-25 22:23:43,571 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-25 22:23:43,571 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-25 22:23:43,572 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_5582db89-68eb-4414-b8e9-3d516ee15bd4/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5582db89-68eb-4414-b8e9-3d516ee15bd4/bin/utaipan-ByfvJB40ur Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3011b5baaaedb6c621e2913d841379eae3b8a9da7212e43b784fc8c1004eda96 [2022-11-25 22:23:43,888 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-25 22:23:43,926 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-25 22:23:43,931 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-25 22:23:43,933 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-25 22:23:43,934 INFO L275 PluginConnector]: CDTParser initialized [2022-11-25 22:23:43,936 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5582db89-68eb-4414-b8e9-3d516ee15bd4/bin/utaipan-ByfvJB40ur/../../sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test8-2.i [2022-11-25 22:23:47,055 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-25 22:23:47,381 INFO L351 CDTParser]: Found 1 translation units. [2022-11-25 22:23:47,382 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5582db89-68eb-4414-b8e9-3d516ee15bd4/sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test8-2.i [2022-11-25 22:23:47,406 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5582db89-68eb-4414-b8e9-3d516ee15bd4/bin/utaipan-ByfvJB40ur/data/8008202fa/4469f00fd952402fa45ca6a65f5e9e76/FLAG9a63e4254 [2022-11-25 22:23:47,428 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5582db89-68eb-4414-b8e9-3d516ee15bd4/bin/utaipan-ByfvJB40ur/data/8008202fa/4469f00fd952402fa45ca6a65f5e9e76 [2022-11-25 22:23:47,433 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-25 22:23:47,434 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-25 22:23:47,438 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-25 22:23:47,438 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-25 22:23:47,442 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-25 22:23:47,443 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 10:23:47" (1/1) ... [2022-11-25 22:23:47,444 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3f554201 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:23:47, skipping insertion in model container [2022-11-25 22:23:47,446 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 10:23:47" (1/1) ... [2022-11-25 22:23:47,454 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-25 22:23:47,525 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-25 22:23:47,984 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_5582db89-68eb-4414-b8e9-3d516ee15bd4/sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test8-2.i[33021,33034] [2022-11-25 22:23:48,128 WARN L623 FunctionHandler]: Unknown extern function memcmp [2022-11-25 22:23:48,145 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_5582db89-68eb-4414-b8e9-3d516ee15bd4/sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test8-2.i[45234,45247] [2022-11-25 22:23:48,159 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 22:23:48,170 INFO L203 MainTranslator]: Completed pre-run [2022-11-25 22:23:48,201 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_5582db89-68eb-4414-b8e9-3d516ee15bd4/sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test8-2.i[33021,33034] [2022-11-25 22:23:48,283 WARN L623 FunctionHandler]: Unknown extern function memcmp [2022-11-25 22:23:48,298 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_5582db89-68eb-4414-b8e9-3d516ee15bd4/sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test8-2.i[45234,45247] [2022-11-25 22:23:48,324 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 22:23:48,369 INFO L208 MainTranslator]: Completed translation [2022-11-25 22:23:48,370 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:23:48 WrapperNode [2022-11-25 22:23:48,370 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-25 22:23:48,372 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-25 22:23:48,372 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-25 22:23:48,373 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-25 22:23:48,381 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:23:48" (1/1) ... [2022-11-25 22:23:48,430 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:23:48" (1/1) ... [2022-11-25 22:23:48,529 INFO L138 Inliner]: procedures = 177, calls = 348, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 1147 [2022-11-25 22:23:48,533 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-25 22:23:48,534 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-25 22:23:48,535 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-25 22:23:48,535 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-25 22:23:48,545 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:23:48" (1/1) ... [2022-11-25 22:23:48,545 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:23:48" (1/1) ... [2022-11-25 22:23:48,554 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:23:48" (1/1) ... [2022-11-25 22:23:48,554 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:23:48" (1/1) ... [2022-11-25 22:23:48,598 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:23:48" (1/1) ... [2022-11-25 22:23:48,610 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:23:48" (1/1) ... [2022-11-25 22:23:48,614 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:23:48" (1/1) ... [2022-11-25 22:23:48,619 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:23:48" (1/1) ... [2022-11-25 22:23:48,628 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-25 22:23:48,629 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-25 22:23:48,629 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-25 22:23:48,629 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-25 22:23:48,630 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:23:48" (1/1) ... [2022-11-25 22:23:48,636 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 22:23:48,647 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5582db89-68eb-4414-b8e9-3d516ee15bd4/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 22:23:48,661 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5582db89-68eb-4414-b8e9-3d516ee15bd4/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-25 22:23:48,691 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5582db89-68eb-4414-b8e9-3d516ee15bd4/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-25 22:23:48,716 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-25 22:23:48,717 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-11-25 22:23:48,717 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-11-25 22:23:48,717 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-25 22:23:48,717 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-25 22:23:48,717 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-25 22:23:48,718 INFO L130 BoogieDeclarations]: Found specification of procedure test_int [2022-11-25 22:23:48,718 INFO L138 BoogieDeclarations]: Found implementation of procedure test_int [2022-11-25 22:23:48,718 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-25 22:23:48,718 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-25 22:23:48,718 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-25 22:23:48,719 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-25 22:23:48,720 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2022-11-25 22:23:48,720 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-25 22:23:48,720 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-25 22:23:48,720 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-25 22:23:48,721 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-25 22:23:48,721 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-25 22:23:49,034 INFO L235 CfgBuilder]: Building ICFG [2022-11-25 22:23:49,038 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-25 22:23:51,115 INFO L276 CfgBuilder]: Performing block encoding [2022-11-25 22:23:51,571 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-25 22:23:51,571 INFO L300 CfgBuilder]: Removed 71 assume(true) statements. [2022-11-25 22:23:51,574 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 10:23:51 BoogieIcfgContainer [2022-11-25 22:23:51,574 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-25 22:23:51,576 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-25 22:23:51,576 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-25 22:23:51,579 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-25 22:23:51,580 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 10:23:47" (1/3) ... [2022-11-25 22:23:51,580 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@74d7a6c9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 10:23:51, skipping insertion in model container [2022-11-25 22:23:51,580 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:23:48" (2/3) ... [2022-11-25 22:23:51,581 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@74d7a6c9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 10:23:51, skipping insertion in model container [2022-11-25 22:23:51,581 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 10:23:51" (3/3) ... [2022-11-25 22:23:51,582 INFO L112 eAbstractionObserver]: Analyzing ICFG uthash_OAT_test8-2.i [2022-11-25 22:23:51,601 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-25 22:23:51,601 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-11-25 22:23:51,655 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-25 22:23:51,662 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;@3f856cee, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-25 22:23:51,662 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-11-25 22:23:51,667 INFO L276 IsEmpty]: Start isEmpty. Operand has 162 states, 136 states have (on average 1.7941176470588236) internal successors, (244), 153 states have internal predecessors, (244), 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) [2022-11-25 22:23:51,674 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-25 22:23:51,674 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:23:51,675 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 22:23:51,676 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 22:23:51,681 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:23:51,681 INFO L85 PathProgramCache]: Analyzing trace with hash 1439031123, now seen corresponding path program 1 times [2022-11-25 22:23:51,691 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:23:51,691 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [69229714] [2022-11-25 22:23:51,691 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:23:51,692 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:23:51,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:23:51,863 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 22:23:51,863 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 22:23:51,864 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [69229714] [2022-11-25 22:23:51,864 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [69229714] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 22:23:51,865 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 22:23:51,865 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-25 22:23:51,866 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1511378057] [2022-11-25 22:23:51,867 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:23:51,872 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-25 22:23:51,873 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 22:23:51,922 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-25 22:23:51,922 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-25 22:23:51,928 INFO L87 Difference]: Start difference. First operand has 162 states, 136 states have (on average 1.7941176470588236) internal successors, (244), 153 states have internal predecessors, (244), 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) [2022-11-25 22:23:53,141 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:23:53,141 INFO L93 Difference]: Finished difference Result 323 states and 584 transitions. [2022-11-25 22:23:53,144 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-25 22:23:53,145 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 [2022-11-25 22:23:53,145 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:23:53,161 INFO L225 Difference]: With dead ends: 323 [2022-11-25 22:23:53,161 INFO L226 Difference]: Without dead ends: 146 [2022-11-25 22:23:53,173 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 [2022-11-25 22:23:53,181 INFO L413 NwaCegarLoop]: 189 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 189 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-11-25 22:23:53,183 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 189 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-11-25 22:23:53,202 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146 states. [2022-11-25 22:23:53,239 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146 to 146. [2022-11-25 22:23:53,240 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) [2022-11-25 22:23:53,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 146 states and 194 transitions. [2022-11-25 22:23:53,244 INFO L78 Accepts]: Start accepts. Automaton has 146 states and 194 transitions. Word has length 8 [2022-11-25 22:23:53,245 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:23:53,245 INFO L495 AbstractCegarLoop]: Abstraction has 146 states and 194 transitions. [2022-11-25 22:23:53,245 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) [2022-11-25 22:23:53,246 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 194 transitions. [2022-11-25 22:23:53,247 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-11-25 22:23:53,247 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:23:53,248 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 22:23:53,248 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-25 22:23:53,248 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 22:23:53,249 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:23:53,249 INFO L85 PathProgramCache]: Analyzing trace with hash 607279358, now seen corresponding path program 1 times [2022-11-25 22:23:53,249 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:23:53,250 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [413291364] [2022-11-25 22:23:53,250 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:23:53,250 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:23:53,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:23:53,656 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 22:23:53,656 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 22:23:53,657 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [413291364] [2022-11-25 22:23:53,657 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [413291364] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 22:23:53,657 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 22:23:53,657 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 22:23:53,658 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1711948282] [2022-11-25 22:23:53,658 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:23:53,659 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-25 22:23:53,659 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 22:23:53,660 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-25 22:23:53,660 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-25 22:23:53,661 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) [2022-11-25 22:23:54,923 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:23:54,923 INFO L93 Difference]: Finished difference Result 293 states and 390 transitions. [2022-11-25 22:23:54,928 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-25 22:23:54,929 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.0) internal successors, (20), 3 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20 [2022-11-25 22:23:54,929 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:23:54,931 INFO L225 Difference]: With dead ends: 293 [2022-11-25 22:23:54,931 INFO L226 Difference]: Without dead ends: 202 [2022-11-25 22:23:54,932 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-25 22:23:54,933 INFO L413 NwaCegarLoop]: 167 mSDtfsCounter, 60 mSDsluCounter, 313 mSDsCounter, 0 mSdLazyCounter, 102 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s 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, 1.2s IncrementalHoareTripleChecker+Time [2022-11-25 22:23:54,934 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [61 Valid, 480 Invalid, 104 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 102 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-11-25 22:23:54,935 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 202 states. [2022-11-25 22:23:54,956 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 202 to 148. [2022-11-25 22:23:54,957 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) [2022-11-25 22:23:54,963 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 148 states and 196 transitions. [2022-11-25 22:23:54,963 INFO L78 Accepts]: Start accepts. Automaton has 148 states and 196 transitions. Word has length 20 [2022-11-25 22:23:54,963 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:23:54,964 INFO L495 AbstractCegarLoop]: Abstraction has 148 states and 196 transitions. [2022-11-25 22:23:54,964 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.0) internal successors, (20), 3 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 22:23:54,964 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 196 transitions. [2022-11-25 22:23:54,966 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-25 22:23:54,966 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:23:54,967 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] [2022-11-25 22:23:54,967 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-25 22:23:54,967 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 22:23:54,969 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:23:54,969 INFO L85 PathProgramCache]: Analyzing trace with hash 308617378, now seen corresponding path program 1 times [2022-11-25 22:23:54,969 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:23:54,970 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1962564801] [2022-11-25 22:23:54,970 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:23:54,971 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:23:55,162 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-25 22:23:55,162 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [926918728] [2022-11-25 22:23:55,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:23:55,163 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 22:23:55,164 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5582db89-68eb-4414-b8e9-3d516ee15bd4/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 22:23:55,171 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5582db89-68eb-4414-b8e9-3d516ee15bd4/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 22:23:55,195 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5582db89-68eb-4414-b8e9-3d516ee15bd4/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-25 22:23:55,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:23:55,961 INFO L263 TraceCheckSpWp]: Trace formula consists of 1597 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-25 22:23:55,969 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 22:23:56,104 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 22:23:56,104 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 22:23:56,105 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 22:23:56,105 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1962564801] [2022-11-25 22:23:56,105 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-25 22:23:56,106 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [926918728] [2022-11-25 22:23:56,106 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [926918728] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 22:23:56,106 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 22:23:56,106 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-25 22:23:56,107 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [966352391] [2022-11-25 22:23:56,107 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:23:56,107 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 22:23:56,107 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 22:23:56,108 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 22:23:56,108 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 22:23:56,108 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) [2022-11-25 22:23:57,443 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:23:57,443 INFO L93 Difference]: Finished difference Result 341 states and 444 transitions. [2022-11-25 22:23:57,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 22:23:57,444 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 [2022-11-25 22:23:57,444 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:23:57,446 INFO L225 Difference]: With dead ends: 341 [2022-11-25 22:23:57,446 INFO L226 Difference]: Without dead ends: 196 [2022-11-25 22:23:57,447 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 [2022-11-25 22:23:57,448 INFO L413 NwaCegarLoop]: 189 mSDtfsCounter, 45 mSDsluCounter, 152 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s 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, 1.3s IncrementalHoareTripleChecker+Time [2022-11-25 22:23:57,448 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [48 Valid, 341 Invalid, 59 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 54 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-11-25 22:23:57,449 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 196 states. [2022-11-25 22:23:57,463 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 196 to 193. [2022-11-25 22:23:57,463 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) [2022-11-25 22:23:57,465 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 193 states to 193 states and 247 transitions. [2022-11-25 22:23:57,465 INFO L78 Accepts]: Start accepts. Automaton has 193 states and 247 transitions. Word has length 32 [2022-11-25 22:23:57,465 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:23:57,465 INFO L495 AbstractCegarLoop]: Abstraction has 193 states and 247 transitions. [2022-11-25 22:23:57,466 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) [2022-11-25 22:23:57,466 INFO L276 IsEmpty]: Start isEmpty. Operand 193 states and 247 transitions. [2022-11-25 22:23:57,467 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2022-11-25 22:23:57,467 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:23:57,467 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] [2022-11-25 22:23:57,483 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5582db89-68eb-4414-b8e9-3d516ee15bd4/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-11-25 22:23:57,676 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5582db89-68eb-4414-b8e9-3d516ee15bd4/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 22:23:57,677 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 22:23:57,677 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:23:57,677 INFO L85 PathProgramCache]: Analyzing trace with hash 922198994, now seen corresponding path program 1 times [2022-11-25 22:23:57,677 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:23:57,678 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [596832060] [2022-11-25 22:23:57,678 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:23:57,678 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:23:57,754 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-25 22:23:57,755 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [749415495] [2022-11-25 22:23:57,755 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:23:57,755 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 22:23:57,756 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5582db89-68eb-4414-b8e9-3d516ee15bd4/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 22:23:57,757 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5582db89-68eb-4414-b8e9-3d516ee15bd4/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 22:23:57,765 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5582db89-68eb-4414-b8e9-3d516ee15bd4/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-25 22:24:39,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:24:39,556 INFO L263 TraceCheckSpWp]: Trace formula consists of 734 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-25 22:24:39,561 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 22:24:39,625 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-25 22:24:39,625 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 22:24:39,626 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 22:24:39,627 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [596832060] [2022-11-25 22:24:39,627 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-25 22:24:39,631 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [749415495] [2022-11-25 22:24:39,631 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [749415495] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 22:24:39,631 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 22:24:39,632 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-25 22:24:39,632 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1384887100] [2022-11-25 22:24:39,632 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:24:39,633 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-25 22:24:39,633 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 22:24:39,634 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-25 22:24:39,634 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-25 22:24:39,635 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), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-25 22:24:42,396 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.65s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-25 22:24:42,535 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:24:42,536 INFO L93 Difference]: Finished difference Result 372 states and 482 transitions. [2022-11-25 22:24:42,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-25 22:24:42,541 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), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 45 [2022-11-25 22:24:42,542 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:24:42,543 INFO L225 Difference]: With dead ends: 372 [2022-11-25 22:24:42,544 INFO L226 Difference]: Without dead ends: 195 [2022-11-25 22:24:42,545 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 [2022-11-25 22:24:42,546 INFO L413 NwaCegarLoop]: 175 mSDtfsCounter, 1 mSDsluCounter, 346 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s 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, 2.9s IncrementalHoareTripleChecker+Time [2022-11-25 22:24:42,547 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 521 Invalid, 61 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2022-11-25 22:24:42,552 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 195 states. [2022-11-25 22:24:42,576 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 195 to 195. [2022-11-25 22:24:42,577 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) [2022-11-25 22:24:42,580 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 195 states to 195 states and 250 transitions. [2022-11-25 22:24:42,581 INFO L78 Accepts]: Start accepts. Automaton has 195 states and 250 transitions. Word has length 45 [2022-11-25 22:24:42,581 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:24:42,582 INFO L495 AbstractCegarLoop]: Abstraction has 195 states and 250 transitions. [2022-11-25 22:24:42,582 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), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-25 22:24:42,582 INFO L276 IsEmpty]: Start isEmpty. Operand 195 states and 250 transitions. [2022-11-25 22:24:42,584 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-11-25 22:24:42,584 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:24:42,585 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] [2022-11-25 22:24:42,635 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5582db89-68eb-4414-b8e9-3d516ee15bd4/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-25 22:24:42,799 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5582db89-68eb-4414-b8e9-3d516ee15bd4/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 22:24:42,799 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 22:24:42,800 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:24:42,800 INFO L85 PathProgramCache]: Analyzing trace with hash -1894472968, now seen corresponding path program 1 times [2022-11-25 22:24:42,800 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:24:42,800 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1578321335] [2022-11-25 22:24:42,800 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:24:42,801 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:24:42,893 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-25 22:24:42,893 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [148353929] [2022-11-25 22:24:42,893 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:24:42,894 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 22:24:42,894 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5582db89-68eb-4414-b8e9-3d516ee15bd4/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 22:24:42,903 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5582db89-68eb-4414-b8e9-3d516ee15bd4/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 22:24:42,923 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5582db89-68eb-4414-b8e9-3d516ee15bd4/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-25 22:25:01,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:25:01,690 INFO L263 TraceCheckSpWp]: Trace formula consists of 764 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-25 22:25:01,695 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 22:25:01,723 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 6 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-25 22:25:01,723 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 22:25:01,896 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-25 22:25:01,897 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 22:25:01,897 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1578321335] [2022-11-25 22:25:01,897 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-25 22:25:01,897 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [148353929] [2022-11-25 22:25:01,898 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [148353929] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 22:25:01,898 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2142929176] [2022-11-25 22:25:01,921 INFO L159 IcfgInterpreter]: Started Sifa with 43 locations of interest [2022-11-25 22:25:01,921 INFO L166 IcfgInterpreter]: Building call graph [2022-11-25 22:25:01,925 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-25 22:25:01,930 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-25 22:25:01,931 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-25 22:25:02,038 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-11-25 22:25:02,047 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-11-25 22:25:02,055 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:02,078 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-25 22:25:02,079 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 27 treesize of output 37 [2022-11-25 22:25:02,094 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:02,100 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 26 treesize of output 28 [2022-11-25 22:25:02,112 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:02,114 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 [2022-11-25 22:25:02,170 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:02,176 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:02,179 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:02,180 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:02,183 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:02,201 INFO L321 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2022-11-25 22:25:02,203 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 8 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 52 treesize of output 53 [2022-11-25 22:25:02,228 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:02,232 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:02,270 INFO L321 Elim1Store]: treesize reduction 20, result has 48.7 percent of original size [2022-11-25 22:25:02,271 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 [2022-11-25 22:25:02,303 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:02,306 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 [2022-11-25 22:25:02,323 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:02,328 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 [2022-11-25 22:25:02,340 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:02,341 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:02,385 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-11-25 22:25:02,389 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 8 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 32 treesize of output 49 [2022-11-25 22:25:02,980 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:02,982 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:02,984 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:02,986 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:02,987 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:02,988 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:02,990 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:02,991 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:02,992 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:02,993 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:02,995 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:02,996 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:02,997 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:02,999 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:03,000 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:03,017 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 [2022-11-25 22:25:03,050 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:03,051 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:03,053 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:03,054 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:03,055 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:03,056 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:03,058 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:03,059 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:03,060 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:03,061 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:03,062 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:03,064 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:03,065 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:03,066 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:03,069 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:03,074 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 [2022-11-25 22:25:03,118 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 19 [2022-11-25 22:25:03,140 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 19 [2022-11-25 22:25:03,203 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:03,204 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:03,206 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:03,207 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:03,209 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:03,210 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:03,211 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:03,212 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:03,214 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:03,215 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:03,220 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:03,221 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:03,223 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:03,224 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:03,225 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:03,226 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:03,227 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:03,229 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:03,230 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:03,253 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 10 select indices, 10 select index equivalence classes, 36 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 0 case distinctions, treesize of input 8458592 treesize of output 4759837 [2022-11-25 22:25:03,290 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:03,294 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:03,296 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:03,298 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:03,299 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:03,301 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:03,303 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:03,305 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:03,306 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:03,308 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:03,313 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:03,315 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:03,316 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:03,318 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:03,319 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:03,320 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:03,322 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:03,324 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:03,325 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:03,326 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:03,328 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:03,331 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 10 select indices, 10 select index equivalence classes, 36 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 0 case distinctions, treesize of input 8458592 treesize of output 4759837 [2022-11-25 22:25:03,366 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 31 [2022-11-25 22:25:03,381 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 31 [2022-11-25 22:25:03,450 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 10 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 46 [2022-11-25 22:25:03,470 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:03,476 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:03,477 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:03,550 INFO L321 Elim1Store]: treesize reduction 90, result has 33.8 percent of original size [2022-11-25 22:25:03,551 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 12 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 6 case distinctions, treesize of input 49 treesize of output 85 [2022-11-25 22:25:03,571 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:03,573 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:03,575 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:03,576 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 13 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 44 [2022-11-25 22:25:03,607 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 9 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 46 [2022-11-25 22:25:03,630 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:03,632 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:03,633 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:03,634 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:03,635 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:03,637 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:03,638 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:03,639 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:03,640 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:03,641 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:03,642 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:03,643 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:03,645 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:03,646 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:03,647 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:03,648 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:03,649 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:03,650 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:03,651 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:03,655 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 10 select indices, 10 select index equivalence classes, 36 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 0 case distinctions, treesize of input 8458592 treesize of output 4759837 [2022-11-25 22:25:03,879 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-25 22:25:03,883 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 [2022-11-25 22:25:03,889 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-25 22:25:03,939 INFO L321 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2022-11-25 22:25:03,940 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 [2022-11-25 22:25:03,972 INFO L321 Elim1Store]: treesize reduction 15, result has 42.3 percent of original size [2022-11-25 22:25:03,973 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 [2022-11-25 22:25:04,004 INFO L321 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2022-11-25 22:25:04,004 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 [2022-11-25 22:25:04,043 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2022-11-25 22:25:04,048 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2022-11-25 22:25:04,054 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2022-11-25 22:25:04,123 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:04,124 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:04,126 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:04,127 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:04,128 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:04,130 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:04,131 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:04,132 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:04,133 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:04,135 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:04,136 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:04,137 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:04,138 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:04,140 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:04,141 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:04,142 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:04,143 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:04,146 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 10 select indices, 10 select index equivalence classes, 29 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 0 case distinctions, treesize of input 8458573 treesize of output 4759755 [2022-11-25 22:25:04,169 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 9 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 108 treesize of output 42 [2022-11-25 22:25:04,188 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 16 [2022-11-25 22:25:04,392 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:04,394 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:04,395 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:04,396 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:04,397 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:04,398 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:04,400 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:04,401 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:04,402 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:04,403 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:04,404 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:04,405 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:04,406 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:04,407 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:04,408 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:04,409 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:04,410 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:04,413 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 10 select indices, 10 select index equivalence classes, 29 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 0 case distinctions, treesize of input 8458573 treesize of output 4759755 [2022-11-25 22:25:04,436 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 9 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 108 treesize of output 42 [2022-11-25 22:25:04,477 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 16 [2022-11-25 22:25:06,038 INFO L217 Elim1Store]: Index analysis took 1270 ms [2022-11-25 22:25:11,009 INFO L321 Elim1Store]: treesize reduction 190, result has 18.1 percent of original size [2022-11-25 22:25:11,011 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 7 select indices, 7 select index equivalence classes, 4 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 22 case distinctions, treesize of input 9519777 treesize of output 9519796 [2022-11-25 22:25:12,036 INFO L217 Elim1Store]: Index analysis took 844 ms [2022-11-25 22:25:12,831 INFO L321 Elim1Store]: treesize reduction 87, result has 5.4 percent of original size [2022-11-25 22:25:12,832 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 9519772 treesize of output 9519776 [2022-11-25 22:27:52,972 WARN L233 SmtUtils]: Spent 2.67m on a formula simplification. DAG size of input: 175 DAG size of output: 92 (called from [L 318] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2022-11-25 22:27:52,973 INFO L321 Elim1Store]: treesize reduction 1193, result has 25.3 percent of original size [2022-11-25 22:27:52,975 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 5 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 9 new quantified variables, introduced 13 case distinctions, treesize of input 9890 treesize of output 6802 [2022-11-25 22:28:17,658 WARN L233 SmtUtils]: Spent 24.40s on a formula simplification. DAG size of input: 80 DAG size of output: 13 (called from [L 318] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2022-11-25 22:28:17,659 INFO L321 Elim1Store]: treesize reduction 252, result has 6.7 percent of original size [2022-11-25 22:28:17,660 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 4 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 11 case distinctions, treesize of input 10021 treesize of output 9263 [2022-11-25 22:28:18,116 INFO L217 Elim1Store]: Index analysis took 179 ms [2022-11-25 22:29:35,885 WARN L233 SmtUtils]: Spent 1.30m on a formula simplification. DAG size of input: 91 DAG size of output: 46 (called from [L 318] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2022-11-25 22:29:35,885 INFO L321 Elim1Store]: treesize reduction 338, result has 31.4 percent of original size [2022-11-25 22:29:35,887 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 10438 treesize of output 9115 [2022-11-25 22:29:42,442 INFO L217 Elim1Store]: Index analysis took 4511 ms [2022-11-25 22:33:37,626 WARN L233 SmtUtils]: Spent 3.90m on a formula simplification. DAG size of input: 408 DAG size of output: 225 (called from [L 318] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2022-11-25 22:33:37,629 INFO L321 Elim1Store]: treesize reduction 11269, result has 26.7 percent of original size [2022-11-25 22:33:37,630 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 8 stores, 0 select indices, 0 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 8 new quantified variables, introduced 32 case distinctions, treesize of input 9192 treesize of output 12130