./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test5-3.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 38b53e6a Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3fb8d48d-3e94-49d9-8699-58bbbca9da8d/bin/utaipan-ByfvJB40ur/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3fb8d48d-3e94-49d9-8699-58bbbca9da8d/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_3fb8d48d-3e94-49d9-8699-58bbbca9da8d/bin/utaipan-ByfvJB40ur/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3fb8d48d-3e94-49d9-8699-58bbbca9da8d/bin/utaipan-ByfvJB40ur/config/TaipanReach.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test5-3.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3fb8d48d-3e94-49d9-8699-58bbbca9da8d/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_3fb8d48d-3e94-49d9-8699-58bbbca9da8d/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 85752dfa9e642a242de1661b045d725551498d8fafaaba42a5d915ccb8e5b948 --- 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 22:33:57,182 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-25 22:33:57,184 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-25 22:33:57,206 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-25 22:33:57,206 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-25 22:33:57,207 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-25 22:33:57,209 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-25 22:33:57,211 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-25 22:33:57,213 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-25 22:33:57,216 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-25 22:33:57,217 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-25 22:33:57,218 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-25 22:33:57,219 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-25 22:33:57,220 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-25 22:33:57,221 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-25 22:33:57,222 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-25 22:33:57,223 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-25 22:33:57,225 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-25 22:33:57,230 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-25 22:33:57,238 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-25 22:33:57,243 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-25 22:33:57,249 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-25 22:33:57,252 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-25 22:33:57,253 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-25 22:33:57,260 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-25 22:33:57,262 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-25 22:33:57,263 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-25 22:33:57,263 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-25 22:33:57,264 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-25 22:33:57,265 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-25 22:33:57,265 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-25 22:33:57,266 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-25 22:33:57,267 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-25 22:33:57,268 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-25 22:33:57,269 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-25 22:33:57,269 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-25 22:33:57,273 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-25 22:33:57,274 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-25 22:33:57,274 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-25 22:33:57,277 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-25 22:33:57,277 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-25 22:33:57,278 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3fb8d48d-3e94-49d9-8699-58bbbca9da8d/bin/utaipan-ByfvJB40ur/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-11-25 22:33:57,319 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-25 22:33:57,319 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-25 22:33:57,320 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-25 22:33:57,320 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-25 22:33:57,321 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-25 22:33:57,322 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-25 22:33:57,322 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-25 22:33:57,322 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-25 22:33:57,322 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-25 22:33:57,323 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-25 22:33:57,324 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-25 22:33:57,324 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-25 22:33:57,324 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-25 22:33:57,324 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-25 22:33:57,325 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-25 22:33:57,325 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-25 22:33:57,325 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-25 22:33:57,325 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-25 22:33:57,326 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-25 22:33:57,326 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-25 22:33:57,327 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-25 22:33:57,327 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-25 22:33:57,327 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-25 22:33:57,327 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-25 22:33:57,328 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-25 22:33:57,328 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-25 22:33:57,328 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-25 22:33:57,328 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-25 22:33:57,329 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-25 22:33:57,329 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-25 22:33:57,329 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-25 22:33:57,330 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-25 22:33:57,330 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 22:33:57,330 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-25 22:33:57,330 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-25 22:33:57,331 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-25 22:33:57,331 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-25 22:33:57,331 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-25 22:33:57,331 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-25 22:33:57,331 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-25 22:33:57,332 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-25 22:33:57,332 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_3fb8d48d-3e94-49d9-8699-58bbbca9da8d/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3fb8d48d-3e94-49d9-8699-58bbbca9da8d/bin/utaipan-ByfvJB40ur Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 85752dfa9e642a242de1661b045d725551498d8fafaaba42a5d915ccb8e5b948 [2022-11-25 22:33:57,647 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-25 22:33:57,683 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-25 22:33:57,686 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-25 22:33:57,687 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-25 22:33:57,688 INFO L275 PluginConnector]: CDTParser initialized [2022-11-25 22:33:57,701 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3fb8d48d-3e94-49d9-8699-58bbbca9da8d/bin/utaipan-ByfvJB40ur/../../sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test5-3.i [2022-11-25 22:34:00,700 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-25 22:34:01,051 INFO L351 CDTParser]: Found 1 translation units. [2022-11-25 22:34:01,052 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3fb8d48d-3e94-49d9-8699-58bbbca9da8d/sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test5-3.i [2022-11-25 22:34:01,073 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3fb8d48d-3e94-49d9-8699-58bbbca9da8d/bin/utaipan-ByfvJB40ur/data/a635a89fe/ea5f8e06d16245af8874c72caf85a883/FLAG4ba7f01dc [2022-11-25 22:34:01,090 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3fb8d48d-3e94-49d9-8699-58bbbca9da8d/bin/utaipan-ByfvJB40ur/data/a635a89fe/ea5f8e06d16245af8874c72caf85a883 [2022-11-25 22:34:01,094 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-25 22:34:01,096 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-25 22:34:01,102 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-25 22:34:01,102 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-25 22:34:01,107 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-25 22:34:01,108 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 10:34:01" (1/1) ... [2022-11-25 22:34:01,109 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3fe8bdd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:34:01, skipping insertion in model container [2022-11-25 22:34:01,110 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 10:34:01" (1/1) ... [2022-11-25 22:34:01,118 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-25 22:34:01,184 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-25 22:34:01,643 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_3fb8d48d-3e94-49d9-8699-58bbbca9da8d/sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test5-3.i[33021,33034] [2022-11-25 22:34:01,848 WARN L623 FunctionHandler]: Unknown extern function memcmp [2022-11-25 22:34:01,851 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_3fb8d48d-3e94-49d9-8699-58bbbca9da8d/sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test5-3.i[49681,49694] [2022-11-25 22:34:01,897 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 22:34:01,918 INFO L203 MainTranslator]: Completed pre-run [2022-11-25 22:34:01,987 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_3fb8d48d-3e94-49d9-8699-58bbbca9da8d/sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test5-3.i[33021,33034] [2022-11-25 22:34:02,107 WARN L623 FunctionHandler]: Unknown extern function memcmp [2022-11-25 22:34:02,110 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_3fb8d48d-3e94-49d9-8699-58bbbca9da8d/sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test5-3.i[49681,49694] [2022-11-25 22:34:02,123 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 22:34:02,153 INFO L208 MainTranslator]: Completed translation [2022-11-25 22:34:02,154 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:34:02 WrapperNode [2022-11-25 22:34:02,154 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-25 22:34:02,155 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-25 22:34:02,156 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-25 22:34:02,156 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-25 22:34:02,166 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:34:02" (1/1) ... [2022-11-25 22:34:02,205 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:34:02" (1/1) ... [2022-11-25 22:34:02,285 INFO L138 Inliner]: procedures = 177, calls = 487, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 1686 [2022-11-25 22:34:02,286 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-25 22:34:02,286 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-25 22:34:02,287 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-25 22:34:02,287 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-25 22:34:02,296 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:34:02" (1/1) ... [2022-11-25 22:34:02,297 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:34:02" (1/1) ... [2022-11-25 22:34:02,310 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:34:02" (1/1) ... [2022-11-25 22:34:02,310 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:34:02" (1/1) ... [2022-11-25 22:34:02,396 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:34:02" (1/1) ... [2022-11-25 22:34:02,425 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:34:02" (1/1) ... [2022-11-25 22:34:02,430 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:34:02" (1/1) ... [2022-11-25 22:34:02,448 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:34:02" (1/1) ... [2022-11-25 22:34:02,460 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-25 22:34:02,461 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-25 22:34:02,461 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-25 22:34:02,461 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-25 22:34:02,462 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:34:02" (1/1) ... [2022-11-25 22:34:02,477 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 22:34:02,488 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3fb8d48d-3e94-49d9-8699-58bbbca9da8d/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 22:34:02,507 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3fb8d48d-3e94-49d9-8699-58bbbca9da8d/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-25 22:34:02,530 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3fb8d48d-3e94-49d9-8699-58bbbca9da8d/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-25 22:34:02,550 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-25 22:34:02,550 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-11-25 22:34:02,550 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-11-25 22:34:02,551 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-25 22:34:02,551 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-25 22:34:02,551 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-25 22:34:02,551 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-25 22:34:02,551 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-25 22:34:02,551 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-25 22:34:02,552 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-25 22:34:02,552 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2022-11-25 22:34:02,553 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-25 22:34:02,553 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-25 22:34:02,553 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-25 22:34:02,553 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-25 22:34:02,553 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-25 22:34:02,879 INFO L235 CfgBuilder]: Building ICFG [2022-11-25 22:34:02,882 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-25 22:34:05,077 INFO L276 CfgBuilder]: Performing block encoding [2022-11-25 22:34:05,658 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-25 22:34:05,658 INFO L300 CfgBuilder]: Removed 100 assume(true) statements. [2022-11-25 22:34:05,661 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 10:34:05 BoogieIcfgContainer [2022-11-25 22:34:05,661 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-25 22:34:05,664 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-25 22:34:05,664 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-25 22:34:05,667 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-25 22:34:05,667 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 10:34:01" (1/3) ... [2022-11-25 22:34:05,668 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@26cce768 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 10:34:05, skipping insertion in model container [2022-11-25 22:34:05,668 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:34:02" (2/3) ... [2022-11-25 22:34:05,669 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@26cce768 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 10:34:05, skipping insertion in model container [2022-11-25 22:34:05,669 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 10:34:05" (3/3) ... [2022-11-25 22:34:05,670 INFO L112 eAbstractionObserver]: Analyzing ICFG uthash_JEN_test5-3.i [2022-11-25 22:34:05,695 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-25 22:34:05,695 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-11-25 22:34:05,764 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-25 22:34:05,771 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;@7255349f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-25 22:34:05,771 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-11-25 22:34:05,776 INFO L276 IsEmpty]: Start isEmpty. Operand has 177 states, 161 states have (on average 1.813664596273292) internal successors, (292), 168 states have internal predecessors, (292), 11 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 7 states have call predecessors, (11), 11 states have call successors, (11) [2022-11-25 22:34:05,784 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-11-25 22:34:05,784 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:34:05,785 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-11-25 22:34:05,785 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 22:34:05,791 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:34:05,791 INFO L85 PathProgramCache]: Analyzing trace with hash 274883441, now seen corresponding path program 1 times [2022-11-25 22:34:05,801 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:34:05,802 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1420510304] [2022-11-25 22:34:05,802 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:34:05,803 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:34:05,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:34:05,967 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 22:34:05,967 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1420510304] [2022-11-25 22:34:05,968 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2022-11-25 22:34:05,968 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [805639758] [2022-11-25 22:34:05,968 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:34:05,969 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 22:34:05,969 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3fb8d48d-3e94-49d9-8699-58bbbca9da8d/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 22:34:05,974 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3fb8d48d-3e94-49d9-8699-58bbbca9da8d/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 22:34:05,982 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3fb8d48d-3e94-49d9-8699-58bbbca9da8d/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-25 22:34:06,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:34:06,253 INFO L263 TraceCheckSpWp]: Trace formula consists of 67 conjuncts, 1 conjunts are in the unsatisfiable core [2022-11-25 22:34:06,259 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 22:34:06,280 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 22:34:06,280 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 22:34:06,281 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [805639758] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 22:34:06,281 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 22:34:06,281 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-25 22:34:06,284 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1607843760] [2022-11-25 22:34:06,285 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:34:06,289 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-25 22:34:06,290 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 22:34:06,321 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-25 22:34:06,321 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-25 22:34:06,324 INFO L87 Difference]: Start difference. First operand has 177 states, 161 states have (on average 1.813664596273292) internal successors, (292), 168 states have internal predecessors, (292), 11 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 7 states have call predecessors, (11), 11 states have call successors, (11) Second operand has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 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 22:34:07,388 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:34:07,388 INFO L93 Difference]: Finished difference Result 353 states and 632 transitions. [2022-11-25 22:34:07,394 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-25 22:34:07,395 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 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 6 [2022-11-25 22:34:07,395 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:34:07,404 INFO L225 Difference]: With dead ends: 353 [2022-11-25 22:34:07,404 INFO L226 Difference]: Without dead ends: 150 [2022-11-25 22:34:07,409 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 5 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 22:34:07,415 INFO L413 NwaCegarLoop]: 186 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 186 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-11-25 22:34:07,418 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 186 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-11-25 22:34:07,435 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 150 states. [2022-11-25 22:34:07,465 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 150 to 150. [2022-11-25 22:34:07,466 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 150 states, 135 states have (on average 1.1925925925925926) internal successors, (161), 141 states have internal predecessors, (161), 11 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 7 states have call predecessors, (11), 11 states have call successors, (11) [2022-11-25 22:34:07,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150 states to 150 states and 183 transitions. [2022-11-25 22:34:07,470 INFO L78 Accepts]: Start accepts. Automaton has 150 states and 183 transitions. Word has length 6 [2022-11-25 22:34:07,470 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:34:07,470 INFO L495 AbstractCegarLoop]: Abstraction has 150 states and 183 transitions. [2022-11-25 22:34:07,471 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 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 22:34:07,471 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states and 183 transitions. [2022-11-25 22:34:07,473 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-11-25 22:34:07,473 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:34:07,473 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 22:34:07,486 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3fb8d48d-3e94-49d9-8699-58bbbca9da8d/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-25 22:34:07,686 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3fb8d48d-3e94-49d9-8699-58bbbca9da8d/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2022-11-25 22:34:07,686 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 22:34:07,687 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:34:07,687 INFO L85 PathProgramCache]: Analyzing trace with hash -1671934868, now seen corresponding path program 1 times [2022-11-25 22:34:07,687 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:34:07,687 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1665997536] [2022-11-25 22:34:07,687 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:34:07,688 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:34:07,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:34:07,723 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 22:34:07,724 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1665997536] [2022-11-25 22:34:07,724 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2022-11-25 22:34:07,724 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [655388813] [2022-11-25 22:34:07,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:34:07,725 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 22:34:07,725 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3fb8d48d-3e94-49d9-8699-58bbbca9da8d/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 22:34:07,726 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3fb8d48d-3e94-49d9-8699-58bbbca9da8d/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 22:34:07,731 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3fb8d48d-3e94-49d9-8699-58bbbca9da8d/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-25 22:34:08,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:34:08,034 INFO L263 TraceCheckSpWp]: Trace formula consists of 122 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-25 22:34:08,038 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 22:34:08,065 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 22:34:08,065 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 22:34:08,065 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [655388813] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 22:34:08,066 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 22:34:08,066 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-25 22:34:08,066 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1715370452] [2022-11-25 22:34:08,067 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:34:08,067 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 22:34:08,067 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 22:34:08,068 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 22:34:08,069 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 22:34:08,069 INFO L87 Difference]: Start difference. First operand 150 states and 183 transitions. Second operand has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 2 states have internal predecessors, (17), 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 22:34:10,370 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-25 22:34:10,372 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:34:10,372 INFO L93 Difference]: Finished difference Result 342 states and 425 transitions. [2022-11-25 22:34:10,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 22:34:10,379 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 2 states have internal predecessors, (17), 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 17 [2022-11-25 22:34:10,379 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:34:10,382 INFO L225 Difference]: With dead ends: 342 [2022-11-25 22:34:10,382 INFO L226 Difference]: Without dead ends: 290 [2022-11-25 22:34:10,383 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 15 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 22:34:10,384 INFO L413 NwaCegarLoop]: 173 mSDtfsCounter, 149 mSDsluCounter, 162 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 160 SdHoareTripleChecker+Valid, 335 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-11-25 22:34:10,385 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [160 Valid, 335 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2022-11-25 22:34:10,386 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 290 states. [2022-11-25 22:34:10,402 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 290 to 151. [2022-11-25 22:34:10,403 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 151 states, 136 states have (on average 1.1911764705882353) internal successors, (162), 142 states have internal predecessors, (162), 11 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 7 states have call predecessors, (11), 11 states have call successors, (11) [2022-11-25 22:34:10,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 151 states to 151 states and 184 transitions. [2022-11-25 22:34:10,405 INFO L78 Accepts]: Start accepts. Automaton has 151 states and 184 transitions. Word has length 17 [2022-11-25 22:34:10,405 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:34:10,405 INFO L495 AbstractCegarLoop]: Abstraction has 151 states and 184 transitions. [2022-11-25 22:34:10,405 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 2 states have internal predecessors, (17), 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 22:34:10,406 INFO L276 IsEmpty]: Start isEmpty. Operand 151 states and 184 transitions. [2022-11-25 22:34:10,407 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2022-11-25 22:34:10,407 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:34:10,408 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, 1, 1, 1, 1, 1, 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 22:34:10,415 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3fb8d48d-3e94-49d9-8699-58bbbca9da8d/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-25 22:34:10,615 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3fb8d48d-3e94-49d9-8699-58bbbca9da8d/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 22:34:10,615 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 22:34:10,616 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:34:10,616 INFO L85 PathProgramCache]: Analyzing trace with hash 700872651, now seen corresponding path program 1 times [2022-11-25 22:34:10,616 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:34:10,617 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1812740964] [2022-11-25 22:34:10,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:34:10,617 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:34:10,933 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-25 22:34:10,933 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [816751362] [2022-11-25 22:34:10,933 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:34:10,933 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 22:34:10,934 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3fb8d48d-3e94-49d9-8699-58bbbca9da8d/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 22:34:10,939 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3fb8d48d-3e94-49d9-8699-58bbbca9da8d/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 22:34:10,967 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3fb8d48d-3e94-49d9-8699-58bbbca9da8d/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-25 22:34:12,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:34:12,336 INFO L263 TraceCheckSpWp]: Trace formula consists of 3112 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-25 22:34:12,342 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 22:34:12,444 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 22:34:12,445 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 22:34:12,536 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 22:34:12,536 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 22:34:12,536 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1812740964] [2022-11-25 22:34:12,537 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-25 22:34:12,537 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [816751362] [2022-11-25 22:34:12,537 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [816751362] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 22:34:12,537 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [986817346] [2022-11-25 22:34:12,558 INFO L159 IcfgInterpreter]: Started Sifa with 61 locations of interest [2022-11-25 22:34:12,558 INFO L166 IcfgInterpreter]: Building call graph [2022-11-25 22:34:12,562 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-25 22:34:12,568 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-25 22:34:12,568 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-25 22:34:12,705 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:34:12,733 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-25 22:34:12,733 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 22:34:12,748 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:34:12,751 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 22:34:12,808 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:34:12,809 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 22:34:12,819 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:34:12,822 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:34:12,824 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:34:12,839 INFO L321 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2022-11-25 22:34:12,839 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 1 case distinctions, treesize of input 33 treesize of output 43 [2022-11-25 22:34:12,857 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:34:12,859 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:34:12,897 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-11-25 22:34:12,898 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 22:34:12,922 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:34:12,924 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 7 [2022-11-25 22:34:12,934 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:34:12,936 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:34:12,937 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 8 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 30 [2022-11-25 22:34:13,424 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 22:34:13,461 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:34:13,462 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:34:13,463 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:34:13,464 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:34:13,466 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:34:13,467 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:34:13,468 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:34:13,469 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:34:13,470 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:34:13,472 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:34:13,474 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:34:13,475 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:34:13,476 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:34:13,491 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 25 disjoint index pairs (out of 28 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 9896990 treesize of output 5376278 [2022-11-25 22:34:13,535 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:34:13,536 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:34:13,538 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:34:13,539 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:34:13,540 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:34:13,542 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:34:13,543 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:34:13,544 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:34:13,546 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:34:13,547 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:34:13,548 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:34:13,555 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:34:13,556 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:34:13,560 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 25 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 0 case distinctions, treesize of input 9075036 treesize of output 5376290 [2022-11-25 22:34:13,616 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 22:34:14,147 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 22:34:14,165 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 22:34:14,187 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:34:14,189 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:34:14,190 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:34:14,196 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:34:14,198 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:34:14,200 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:34:14,202 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:34:14,203 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:34:14,204 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:34:14,213 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:34:14,215 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:34:14,217 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:34:14,218 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:34:14,236 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 25 disjoint index pairs (out of 28 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 9896990 treesize of output 5376278 [2022-11-25 22:34:14,269 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:34:14,271 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:34:14,272 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:34:14,273 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:34:14,274 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:34:14,275 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:34:14,276 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:34:14,277 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:34:14,278 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:34:14,279 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:34:14,280 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:34:14,281 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:34:14,283 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:34:14,286 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 25 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 0 case distinctions, treesize of input 9075036 treesize of output 5376290 [2022-11-25 22:34:14,334 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-25 22:34:28,541 WARN L233 SmtUtils]: Spent 6.81s on a formula simplification. DAG size of input: 251 DAG size of output: 236 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-25 22:34:28,546 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [986817346] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 22:34:28,547 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-11-25 22:34:28,547 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [3, 3] total 11 [2022-11-25 22:34:28,548 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1918466284] [2022-11-25 22:34:28,548 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:34:28,548 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-25 22:34:28,548 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 22:34:28,549 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-25 22:34:28,549 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=69, Unknown=1, NotChecked=0, Total=132 [2022-11-25 22:34:28,550 INFO L87 Difference]: Start difference. First operand 151 states and 184 transitions. Second operand has 8 states, 8 states have (on average 7.625) internal successors, (61), 7 states have internal predecessors, (61), 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 22:34:30,788 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-11-25 22:34:32,847 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-11-25 22:34:37,754 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.64s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-25 22:34:39,764 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-11-25 22:34:41,297 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:34:41,297 INFO L93 Difference]: Finished difference Result 310 states and 378 transitions. [2022-11-25 22:34:41,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-25 22:34:41,298 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.625) internal successors, (61), 7 states have internal predecessors, (61), 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 61 [2022-11-25 22:34:41,298 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:34:41,300 INFO L225 Difference]: With dead ends: 310 [2022-11-25 22:34:41,300 INFO L226 Difference]: Without dead ends: 161 [2022-11-25 22:34:41,301 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 181 GetRequests, 171 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 14.2s TimeCoverageRelationStatistics Valid=62, Invalid=69, Unknown=1, NotChecked=0, Total=132 [2022-11-25 22:34:41,302 INFO L413 NwaCegarLoop]: 161 mSDtfsCounter, 0 mSDsluCounter, 441 mSDsCounter, 0 mSdLazyCounter, 314 mSolverCounterSat, 1 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 602 SdHoareTripleChecker+Invalid, 318 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 314 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.7s IncrementalHoareTripleChecker+Time [2022-11-25 22:34:41,302 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 602 Invalid, 318 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 314 Invalid, 3 Unknown, 0 Unchecked, 12.7s Time] [2022-11-25 22:34:41,303 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 161 states. [2022-11-25 22:34:41,320 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 161 to 161. [2022-11-25 22:34:41,320 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 161 states, 146 states have (on average 1.178082191780822) internal successors, (172), 152 states have internal predecessors, (172), 11 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 7 states have call predecessors, (11), 11 states have call successors, (11) [2022-11-25 22:34:41,322 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 161 states to 161 states and 194 transitions. [2022-11-25 22:34:41,322 INFO L78 Accepts]: Start accepts. Automaton has 161 states and 194 transitions. Word has length 61 [2022-11-25 22:34:41,322 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:34:41,323 INFO L495 AbstractCegarLoop]: Abstraction has 161 states and 194 transitions. [2022-11-25 22:34:41,323 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.625) internal successors, (61), 7 states have internal predecessors, (61), 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 22:34:41,323 INFO L276 IsEmpty]: Start isEmpty. Operand 161 states and 194 transitions. [2022-11-25 22:34:41,325 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2022-11-25 22:34:41,325 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:34:41,325 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, 1, 1, 1, 1, 1, 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 22:34:41,339 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3fb8d48d-3e94-49d9-8699-58bbbca9da8d/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-25 22:34:41,538 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3fb8d48d-3e94-49d9-8699-58bbbca9da8d/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 22:34:41,539 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 22:34:41,539 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:34:41,539 INFO L85 PathProgramCache]: Analyzing trace with hash -385397690, now seen corresponding path program 1 times [2022-11-25 22:34:41,540 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:34:41,540 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [474983474] [2022-11-25 22:34:41,540 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:34:41,540 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:34:41,730 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-25 22:34:41,730 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [258639895] [2022-11-25 22:34:41,730 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:34:41,730 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 22:34:41,731 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3fb8d48d-3e94-49d9-8699-58bbbca9da8d/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 22:34:41,732 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3fb8d48d-3e94-49d9-8699-58bbbca9da8d/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 22:34:41,737 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3fb8d48d-3e94-49d9-8699-58bbbca9da8d/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-25 22:34:42,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:34:42,941 INFO L263 TraceCheckSpWp]: Trace formula consists of 2249 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-25 22:34:42,947 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 22:34:43,059 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-25 22:34:43,059 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 22:34:43,186 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-25 22:34:43,187 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 22:34:43,187 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [474983474] [2022-11-25 22:34:43,187 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-25 22:34:43,187 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [258639895] [2022-11-25 22:34:43,188 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [258639895] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 22:34:43,188 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [166497729] [2022-11-25 22:34:43,192 INFO L159 IcfgInterpreter]: Started Sifa with 71 locations of interest [2022-11-25 22:34:43,192 INFO L166 IcfgInterpreter]: Building call graph [2022-11-25 22:34:43,193 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-25 22:34:43,193 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-25 22:34:43,193 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-25 22:34:43,285 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:34:43,303 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-25 22:34:43,303 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 22:34:43,315 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:34:43,316 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 22:34:43,338 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:34:43,340 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:34:43,370 INFO L321 Elim1Store]: treesize reduction 20, result has 48.7 percent of original size [2022-11-25 22:34:43,370 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 22:34:43,387 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:34:43,388 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 22:34:43,401 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:34:43,402 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:34:43,439 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-11-25 22:34:43,439 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 22:34:43,454 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:34:43,455 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:34:43,456 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 39 [2022-11-25 22:34:43,474 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:34:43,475 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 7 [2022-11-25 22:34:43,851 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 22:34:43,869 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 22:34:43,887 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:34:43,888 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:34:43,890 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:34:43,891 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:34:43,892 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:34:43,893 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:34:43,894 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:34:43,896 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:34:43,897 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:34:43,898 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:34:43,899 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:34:43,900 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:34:43,902 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:34:43,915 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 25 disjoint index pairs (out of 28 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 9896990 treesize of output 5376278 [2022-11-25 22:34:43,945 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:34:43,947 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:34:43,948 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:34:43,949 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:34:43,950 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:34:43,951 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:34:43,952 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:34:43,954 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:34:43,955 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:34:43,956 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:34:43,957 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:34:43,958 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:34:43,960 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:34:43,963 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 25 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 0 case distinctions, treesize of input 9896988 treesize of output 5376290 [2022-11-25 22:34:44,020 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 22:34:44,037 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 22:34:44,076 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:34:44,077 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:34:44,078 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:34:44,080 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:34:44,081 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:34:44,082 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:34:44,083 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:34:44,084 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:34:44,086 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:34:44,087 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:34:44,088 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:34:44,089 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:34:44,091 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:34:44,092 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:34:44,093 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:34:44,094 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:34:44,096 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:34:44,116 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 32 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 9075051 treesize of output 5376293 [2022-11-25 22:34:44,148 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:34:44,149 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:34:44,150 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:34:44,151 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:34:44,153 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:34:44,154 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:34:44,155 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:34:44,156 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:34:44,157 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:34:44,159 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:34:44,160 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:34:44,161 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:34:44,162 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:34:44,163 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:34:44,164 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:34:44,165 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:34:44,166 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:34:44,169 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 32 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 9075051 treesize of output 5376293 [2022-11-25 22:34:44,229 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:34:44,230 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:34:44,232 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:34:44,233 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:34:44,234 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:34:44,236 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:34:44,237 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:34:44,238 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:34:44,240 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:34:44,241 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:34:44,242 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:34:44,243 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:34:44,244 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:34:44,245 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:34:44,246 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:34:44,247 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:34:44,249 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:34:44,252 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 32 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 9075051 treesize of output 5376293 [2022-11-25 22:34:44,286 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 22:34:44,316 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 22:34:44,336 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:34:44,337 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:34:44,339 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:34:44,390 INFO L321 Elim1Store]: treesize reduction 48, result has 48.9 percent of original size [2022-11-25 22:34:44,390 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 33 treesize of output 74 [2022-11-25 22:34:44,414 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:34:44,415 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:34:44,417 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:34:44,477 INFO L321 Elim1Store]: treesize reduction 90, result has 33.8 percent of original size [2022-11-25 22:34:44,478 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 22:34:45,208 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 22:34:45,228 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 22:34:45,249 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:34:45,250 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:34:45,252 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:34:45,253 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:34:45,254 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:34:45,255 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:34:45,257 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:34:45,258 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:34:45,259 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:34:45,260 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:34:45,261 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:34:45,262 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:34:45,263 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:34:45,277 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 25 disjoint index pairs (out of 28 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 9896990 treesize of output 5376278 [2022-11-25 22:34:45,305 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:34:45,306 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:34:45,307 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:34:45,308 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:34:45,310 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:34:45,311 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:34:45,312 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:34:45,313 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:34:45,314 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:34:45,315 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:34:45,316 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:34:45,317 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:34:45,318 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:34:45,321 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 25 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 0 case distinctions, treesize of input 9896988 treesize of output 5376290 [2022-11-25 22:34:45,424 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:34:45,426 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:34:45,427 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:34:45,428 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:34:45,429 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:34:45,430 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:34:45,431 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:34:45,432 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:34:45,433 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:34:45,434 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:34:45,435 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:34:45,437 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:34:45,438 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:34:45,439 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:34:45,440 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:34:45,441 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:34:45,442 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:34:45,457 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 32 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 9897003 treesize of output 5376293 [2022-11-25 22:34:45,487 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:34:45,488 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:34:45,489 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:34:45,490 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:34:45,492 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:34:45,493 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:34:45,494 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:34:45,495 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:34:45,496 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:34:45,497 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:34:45,498 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:34:45,499 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:34:45,500 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:34:45,501 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:34:45,502 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:34:45,503 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:34:45,504 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:34:45,507 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 32 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 9897003 treesize of output 5376293 [2022-11-25 22:34:45,543 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 22:34:45,556 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 22:34:45,615 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 22:34:45,633 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:34:45,635 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:34:45,636 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:34:45,637 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:34:45,638 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:34:45,639 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:34:45,640 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:34:45,641 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:34:45,642 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:34:45,643 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:34:45,644 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:34:45,645 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:34:45,646 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:34:45,648 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:34:45,649 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:34:45,650 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:34:45,651 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:34:45,654 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 32 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 9075051 treesize of output 5376293 [2022-11-25 22:34:45,697 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 22:34:45,713 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:34:45,715 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:34:45,716 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:34:45,777 INFO L321 Elim1Store]: treesize reduction 90, result has 33.8 percent of original size [2022-11-25 22:34:45,777 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 22:34:45,800 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:34:45,802 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:34:45,803 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:34:45,805 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 22:34:46,206 INFO L197 IcfgInterpreter]: Interpreting procedure #Ultimate.C_memset with input of size 253 for LOIs [2022-11-25 22:34:46,332 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-25 22:34:52,731 WARN L233 SmtUtils]: Spent 5.22s on a formula simplification. DAG size of input: 235 DAG size of output: 220 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-25 22:35:00,208 WARN L233 SmtUtils]: Spent 5.36s on a formula simplification. DAG size of input: 251 DAG size of output: 236 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-25 22:35:10,028 WARN L233 SmtUtils]: Spent 5.66s on a formula simplification. DAG size of input: 262 DAG size of output: 248 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-25 22:35:22,865 WARN L233 SmtUtils]: Spent 6.68s on a formula simplification. DAG size of input: 284 DAG size of output: 262 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-25 22:35:36,983 WARN L233 SmtUtils]: Spent 7.59s on a formula simplification. DAG size of input: 284 DAG size of output: 262 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-25 22:35:37,916 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [166497729] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 22:35:37,916 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-11-25 22:35:37,916 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [4, 4] total 17 [2022-11-25 22:35:37,917 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [529774526] [2022-11-25 22:35:37,917 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:35:37,917 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-25 22:35:37,917 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 22:35:37,918 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-25 22:35:37,919 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=91, Invalid=172, Unknown=9, NotChecked=0, Total=272 [2022-11-25 22:35:37,919 INFO L87 Difference]: Start difference. First operand 161 states and 194 transitions. Second operand has 13 states, 12 states have (on average 5.666666666666667) internal successors, (68), 11 states have internal predecessors, (68), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-25 22:35:40,396 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-11-25 22:35:42,607 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-11-25 22:35:44,673 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-11-25 22:35:46,783 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-11-25 22:35:48,794 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-11-25 22:35:50,806 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-11-25 22:35:52,891 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-11-25 22:35:54,911 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-11-25 22:35:56,920 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-11-25 22:36:02,854 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.10s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-11-25 22:36:05,383 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:36:05,383 INFO L93 Difference]: Finished difference Result 315 states and 384 transitions. [2022-11-25 22:36:05,384 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-25 22:36:05,384 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 5.666666666666667) internal successors, (68), 11 states have internal predecessors, (68), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 74 [2022-11-25 22:36:05,384 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:36:05,385 INFO L225 Difference]: With dead ends: 315 [2022-11-25 22:36:05,385 INFO L226 Difference]: Without dead ends: 166 [2022-11-25 22:36:05,386 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 220 GetRequests, 203 SyntacticMatches, 2 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 86 ImplicationChecksByTransitivity, 51.6s TimeCoverageRelationStatistics Valid=91, Invalid=172, Unknown=9, NotChecked=0, Total=272 [2022-11-25 22:36:05,387 INFO L413 NwaCegarLoop]: 159 mSDtfsCounter, 0 mSDsluCounter, 452 mSDsCounter, 0 mSdLazyCounter, 378 mSolverCounterSat, 0 mSolverCounterUnsat, 9 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 27.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 611 SdHoareTripleChecker+Invalid, 387 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 378 IncrementalHoareTripleChecker+Invalid, 9 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 27.4s IncrementalHoareTripleChecker+Time [2022-11-25 22:36:05,387 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 611 Invalid, 387 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 378 Invalid, 9 Unknown, 0 Unchecked, 27.4s Time] [2022-11-25 22:36:05,388 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 166 states. [2022-11-25 22:36:05,415 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 166 to 166. [2022-11-25 22:36:05,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 166 states, 150 states have (on average 1.1733333333333333) internal successors, (176), 156 states have internal predecessors, (176), 12 states have call successors, (12), 3 states have call predecessors, (12), 2 states have return successors, (12), 7 states have call predecessors, (12), 12 states have call successors, (12) [2022-11-25 22:36:05,417 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 166 states to 166 states and 200 transitions. [2022-11-25 22:36:05,417 INFO L78 Accepts]: Start accepts. Automaton has 166 states and 200 transitions. Word has length 74 [2022-11-25 22:36:05,417 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:36:05,417 INFO L495 AbstractCegarLoop]: Abstraction has 166 states and 200 transitions. [2022-11-25 22:36:05,417 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 5.666666666666667) internal successors, (68), 11 states have internal predecessors, (68), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-25 22:36:05,418 INFO L276 IsEmpty]: Start isEmpty. Operand 166 states and 200 transitions. [2022-11-25 22:36:05,420 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2022-11-25 22:36:05,420 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:36:05,420 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, 1, 1, 1, 1, 1, 1, 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 22:36:05,437 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3fb8d48d-3e94-49d9-8699-58bbbca9da8d/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-25 22:36:05,632 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3fb8d48d-3e94-49d9-8699-58bbbca9da8d/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 22:36:05,632 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 22:36:05,632 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:36:05,633 INFO L85 PathProgramCache]: Analyzing trace with hash -102741374, now seen corresponding path program 1 times [2022-11-25 22:36:05,633 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:36:05,633 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [852732443] [2022-11-25 22:36:05,633 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:36:05,633 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:36:05,801 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-25 22:36:05,802 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [204547776] [2022-11-25 22:36:05,802 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:36:05,802 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 22:36:05,802 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3fb8d48d-3e94-49d9-8699-58bbbca9da8d/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 22:36:05,803 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3fb8d48d-3e94-49d9-8699-58bbbca9da8d/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 22:36:05,826 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3fb8d48d-3e94-49d9-8699-58bbbca9da8d/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-25 22:36:07,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:36:07,122 INFO L263 TraceCheckSpWp]: Trace formula consists of 2264 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-25 22:36:07,127 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 22:36:07,228 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-11-25 22:36:07,228 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 22:36:07,338 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-11-25 22:36:07,338 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 22:36:07,338 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [852732443] [2022-11-25 22:36:07,338 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-25 22:36:07,339 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [204547776] [2022-11-25 22:36:07,339 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [204547776] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 22:36:07,339 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [31142027] [2022-11-25 22:36:07,342 INFO L159 IcfgInterpreter]: Started Sifa with 71 locations of interest [2022-11-25 22:36:07,343 INFO L166 IcfgInterpreter]: Building call graph [2022-11-25 22:36:07,343 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-25 22:36:07,344 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-25 22:36:07,344 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-25 22:36:07,404 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:36:07,423 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-25 22:36:07,423 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 22:36:07,434 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:36:07,435 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 22:36:07,461 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:36:07,462 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 22:36:07,469 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:36:07,470 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:36:07,504 INFO L321 Elim1Store]: treesize reduction 20, result has 48.7 percent of original size [2022-11-25 22:36:07,504 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 22:36:07,518 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:36:07,520 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:36:07,561 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-11-25 22:36:07,561 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 22:36:07,576 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:36:07,577 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:36:07,578 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 39 [2022-11-25 22:36:07,596 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:36:07,597 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 7 [2022-11-25 22:36:07,928 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 22:36:07,951 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:36:07,952 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:36:07,954 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:36:07,955 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:36:07,956 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:36:07,957 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:36:07,958 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:36:07,959 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:36:07,961 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:36:07,962 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:36:07,963 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:36:07,964 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:36:07,965 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:36:07,978 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 25 disjoint index pairs (out of 28 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 9896990 treesize of output 5376278 [2022-11-25 22:36:08,004 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:36:08,005 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:36:08,006 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:36:08,008 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:36:08,009 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:36:08,010 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:36:08,011 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:36:08,012 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:36:08,013 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:36:08,014 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:36:08,015 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:36:08,016 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:36:08,017 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:36:08,020 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 25 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 0 case distinctions, treesize of input 9075036 treesize of output 5376290 [2022-11-25 22:36:08,059 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 22:36:08,091 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 22:36:08,155 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:36:08,156 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:36:08,157 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:36:08,159 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:36:08,160 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:36:08,161 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:36:08,163 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:36:08,164 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:36:08,166 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:36:08,167 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:36:08,169 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:36:08,170 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:36:08,172 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:36:08,173 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:36:08,175 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:36:08,176 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:36:08,178 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:36:08,197 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 32 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 9075051 treesize of output 5376293 [2022-11-25 22:36:08,226 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:36:08,227 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:36:08,228 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:36:08,229 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:36:08,231 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:36:08,232 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:36:08,233 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:36:08,234 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:36:08,235 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:36:08,236 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:36:08,237 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:36:08,238 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:36:08,239 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:36:08,240 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:36:08,241 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:36:08,242 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:36:08,244 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:36:08,246 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 32 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 9075051 treesize of output 5376293 [2022-11-25 22:36:08,273 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 22:36:08,325 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 22:36:08,338 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:36:08,339 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:36:08,341 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:36:08,399 INFO L321 Elim1Store]: treesize reduction 48, result has 48.9 percent of original size [2022-11-25 22:36:08,399 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 33 treesize of output 74 [2022-11-25 22:36:08,417 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:36:08,419 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:36:08,421 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:36:08,482 INFO L321 Elim1Store]: treesize reduction 90, result has 33.8 percent of original size [2022-11-25 22:36:08,483 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 22:36:08,513 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:36:08,514 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:36:08,515 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:36:08,516 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:36:08,517 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:36:08,518 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:36:08,520 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:36:08,521 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:36:08,522 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:36:08,523 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:36:08,525 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:36:08,526 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:36:08,527 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:36:08,528 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:36:08,530 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:36:08,531 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:36:08,532 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:36:08,535 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 32 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 9075051 treesize of output 5376293 [2022-11-25 22:36:08,571 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 22:36:08,730 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 22:36:08,734 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 22:36:08,754 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 22:36:08,783 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 64 treesize of output 63 [2022-11-25 22:36:08,791 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 66 treesize of output 65 [2022-11-25 22:36:08,800 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 64 treesize of output 63 [2022-11-25 22:36:08,821 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 22:36:08,827 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 22:36:08,833 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 22:36:08,902 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:36:08,904 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:36:08,905 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:36:08,906 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:36:08,908 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:36:08,909 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:36:08,910 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:36:08,911 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:36:08,912 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:36:08,914 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:36:08,915 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:36:08,916 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:36:08,917 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:36:08,919 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 9 select indices, 9 select index equivalence classes, 25 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 9075032 treesize of output 5376218 [2022-11-25 22:36:08,951 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 22:36:08,972 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 22:36:09,143 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:36:09,144 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:36:09,145 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:36:09,146 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:36:09,148 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:36:09,149 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:36:09,150 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:36:09,151 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:36:09,152 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:36:09,153 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:36:09,154 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:36:09,156 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:36:09,157 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:36:09,159 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 9 select indices, 9 select index equivalence classes, 25 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 9075032 treesize of output 5376218 [2022-11-25 22:36:09,176 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 22:36:09,193 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 22:36:10,594 INFO L217 Elim1Store]: Index analysis took 1028 ms [2022-11-25 22:36:22,129 WARN L233 SmtUtils]: Spent 11.53s on a formula simplification. DAG size of input: 109 DAG size of output: 31 (called from [L 318] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2022-11-25 22:36:22,130 INFO L321 Elim1Store]: treesize reduction 190, result has 18.1 percent of original size [2022-11-25 22:36:22,130 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 10752723 treesize of output 10752742 [2022-11-25 22:36:23,497 INFO L217 Elim1Store]: Index analysis took 1168 ms [2022-11-25 22:36:24,394 INFO L321 Elim1Store]: treesize reduction 87, result has 5.4 percent of original size [2022-11-25 22:36:24,395 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 10752718 treesize of output 10752722 [2022-11-25 22:39:52,771 WARN L233 SmtUtils]: Spent 3.47m on a formula simplification. DAG size of input: 198 DAG size of output: 104 (called from [L 318] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2022-11-25 22:39:52,772 INFO L321 Elim1Store]: treesize reduction 1636, result has 23.4 percent of original size [2022-11-25 22:39:52,772 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 6 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 9 new quantified variables, introduced 18 case distinctions, treesize of input 7904 treesize of output 5832 [2022-11-25 22:39:53,629 INFO L217 Elim1Store]: Index analysis took 568 ms [2022-11-25 22:41:32,647 WARN L233 SmtUtils]: Spent 1.65m on a formula simplification. DAG size of input: 90 DAG size of output: 45 (called from [L 318] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2022-11-25 22:41:32,648 INFO L321 Elim1Store]: treesize reduction 266, result has 31.6 percent of original size [2022-11-25 22:41:32,649 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 7135 treesize of output 5975 [2022-11-25 22:41:41,961 INFO L217 Elim1Store]: Index analysis took 6326 ms