./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test4-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4e7fbc69 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0df2452f-5146-4b36-a349-26165821568f/bin/utaipan-Q6hlc19bkW/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0df2452f-5146-4b36-a349-26165821568f/bin/utaipan-Q6hlc19bkW/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0df2452f-5146-4b36-a349-26165821568f/bin/utaipan-Q6hlc19bkW/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0df2452f-5146-4b36-a349-26165821568f/bin/utaipan-Q6hlc19bkW/config/TaipanReach.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test4-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0df2452f-5146-4b36-a349-26165821568f/bin/utaipan-Q6hlc19bkW/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0df2452f-5146-4b36-a349-26165821568f/bin/utaipan-Q6hlc19bkW --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 765142a1ef820c0c2cf2fa98a3978a1412f5a1196c629c20848264001100dcc9 --- 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-4e7fbc6 [2022-11-23 15:50:30,386 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-23 15:50:30,388 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-23 15:50:30,407 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-23 15:50:30,408 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-23 15:50:30,409 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-23 15:50:30,410 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-23 15:50:30,412 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-23 15:50:30,414 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-23 15:50:30,415 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-23 15:50:30,416 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-23 15:50:30,417 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-23 15:50:30,417 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-23 15:50:30,418 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-23 15:50:30,420 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-23 15:50:30,421 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-23 15:50:30,422 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-23 15:50:30,423 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-23 15:50:30,424 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-23 15:50:30,427 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-23 15:50:30,428 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-23 15:50:30,430 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-23 15:50:30,431 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-23 15:50:30,432 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-23 15:50:30,436 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-23 15:50:30,437 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-23 15:50:30,438 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-23 15:50:30,439 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-23 15:50:30,439 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-23 15:50:30,441 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-23 15:50:30,441 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-23 15:50:30,442 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-23 15:50:30,443 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-23 15:50:30,444 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-23 15:50:30,445 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-23 15:50:30,445 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-23 15:50:30,446 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-23 15:50:30,447 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-23 15:50:30,447 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-23 15:50:30,448 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-23 15:50:30,449 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-23 15:50:30,450 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0df2452f-5146-4b36-a349-26165821568f/bin/utaipan-Q6hlc19bkW/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-11-23 15:50:30,472 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-23 15:50:30,472 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-23 15:50:30,473 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-23 15:50:30,473 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-23 15:50:30,474 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-23 15:50:30,474 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-23 15:50:30,474 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-23 15:50:30,475 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-23 15:50:30,475 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-23 15:50:30,475 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-23 15:50:30,476 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-23 15:50:30,476 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-23 15:50:30,476 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-23 15:50:30,477 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-23 15:50:30,477 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-23 15:50:30,477 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-23 15:50:30,477 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-23 15:50:30,478 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-23 15:50:30,479 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-23 15:50:30,479 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-23 15:50:30,479 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-23 15:50:30,479 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-23 15:50:30,480 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-23 15:50:30,480 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-23 15:50:30,480 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-23 15:50:30,481 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-23 15:50:30,481 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-23 15:50:30,481 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-23 15:50:30,481 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-23 15:50:30,482 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-23 15:50:30,482 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-23 15:50:30,482 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-23 15:50:30,483 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 15:50:30,483 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-23 15:50:30,483 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-23 15:50:30,483 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-23 15:50:30,484 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-23 15:50:30,484 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-23 15:50:30,484 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-23 15:50:30,485 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-23 15:50:30,485 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-23 15:50:30,485 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_0df2452f-5146-4b36-a349-26165821568f/bin/utaipan-Q6hlc19bkW/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0df2452f-5146-4b36-a349-26165821568f/bin/utaipan-Q6hlc19bkW Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 765142a1ef820c0c2cf2fa98a3978a1412f5a1196c629c20848264001100dcc9 [2022-11-23 15:50:30,795 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-23 15:50:30,824 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-23 15:50:30,827 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-23 15:50:30,828 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-23 15:50:30,829 INFO L275 PluginConnector]: CDTParser initialized [2022-11-23 15:50:30,830 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0df2452f-5146-4b36-a349-26165821568f/bin/utaipan-Q6hlc19bkW/../../sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test4-1.i [2022-11-23 15:50:34,003 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-23 15:50:34,330 INFO L351 CDTParser]: Found 1 translation units. [2022-11-23 15:50:34,330 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0df2452f-5146-4b36-a349-26165821568f/sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test4-1.i [2022-11-23 15:50:34,347 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0df2452f-5146-4b36-a349-26165821568f/bin/utaipan-Q6hlc19bkW/data/e8308dd6d/b0c402fe89b242b0a87011998e9bc8cc/FLAG952463758 [2022-11-23 15:50:34,363 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0df2452f-5146-4b36-a349-26165821568f/bin/utaipan-Q6hlc19bkW/data/e8308dd6d/b0c402fe89b242b0a87011998e9bc8cc [2022-11-23 15:50:34,366 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-23 15:50:34,368 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-23 15:50:34,370 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-23 15:50:34,370 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-23 15:50:34,381 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-23 15:50:34,382 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:50:34" (1/1) ... [2022-11-23 15:50:34,383 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2d537552 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:50:34, skipping insertion in model container [2022-11-23 15:50:34,383 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:50:34" (1/1) ... [2022-11-23 15:50:34,393 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-23 15:50:34,459 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-23 15:50:34,895 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_0df2452f-5146-4b36-a349-26165821568f/sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test4-1.i[33021,33034] [2022-11-23 15:50:35,031 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 15:50:35,041 INFO L203 MainTranslator]: Completed pre-run [2022-11-23 15:50:35,073 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_0df2452f-5146-4b36-a349-26165821568f/sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test4-1.i[33021,33034] [2022-11-23 15:50:35,144 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 15:50:35,179 INFO L208 MainTranslator]: Completed translation [2022-11-23 15:50:35,179 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:50:35 WrapperNode [2022-11-23 15:50:35,179 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-23 15:50:35,181 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-23 15:50:35,181 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-23 15:50:35,181 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-23 15:50:35,188 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:50:35" (1/1) ... [2022-11-23 15:50:35,217 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:50:35" (1/1) ... [2022-11-23 15:50:35,306 INFO L138 Inliner]: procedures = 177, calls = 349, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 1145 [2022-11-23 15:50:35,307 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-23 15:50:35,307 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-23 15:50:35,308 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-23 15:50:35,308 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-23 15:50:35,317 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:50:35" (1/1) ... [2022-11-23 15:50:35,318 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:50:35" (1/1) ... [2022-11-23 15:50:35,336 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:50:35" (1/1) ... [2022-11-23 15:50:35,336 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:50:35" (1/1) ... [2022-11-23 15:50:35,421 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:50:35" (1/1) ... [2022-11-23 15:50:35,441 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:50:35" (1/1) ... [2022-11-23 15:50:35,446 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:50:35" (1/1) ... [2022-11-23 15:50:35,450 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:50:35" (1/1) ... [2022-11-23 15:50:35,480 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-23 15:50:35,481 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-23 15:50:35,481 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-23 15:50:35,481 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-23 15:50:35,482 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:50:35" (1/1) ... [2022-11-23 15:50:35,493 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 15:50:35,511 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0df2452f-5146-4b36-a349-26165821568f/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 15:50:35,532 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0df2452f-5146-4b36-a349-26165821568f/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-23 15:50:35,565 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0df2452f-5146-4b36-a349-26165821568f/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-23 15:50:35,585 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-23 15:50:35,585 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-11-23 15:50:35,586 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-11-23 15:50:35,586 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-23 15:50:35,586 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-23 15:50:35,586 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-23 15:50:35,586 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-23 15:50:35,587 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-23 15:50:35,587 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-23 15:50:35,587 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-23 15:50:35,587 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-23 15:50:35,588 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-23 15:50:35,588 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-23 15:50:35,589 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-23 15:50:35,589 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-23 15:50:35,852 INFO L235 CfgBuilder]: Building ICFG [2022-11-23 15:50:35,869 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-23 15:50:38,031 INFO L276 CfgBuilder]: Performing block encoding [2022-11-23 15:50:38,588 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-23 15:50:38,588 INFO L300 CfgBuilder]: Removed 60 assume(true) statements. [2022-11-23 15:50:38,591 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:50:38 BoogieIcfgContainer [2022-11-23 15:50:38,591 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-23 15:50:38,594 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-23 15:50:38,594 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-23 15:50:38,597 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-23 15:50:38,597 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 03:50:34" (1/3) ... [2022-11-23 15:50:38,598 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@44aeac81 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 03:50:38, skipping insertion in model container [2022-11-23 15:50:38,598 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:50:35" (2/3) ... [2022-11-23 15:50:38,599 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@44aeac81 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 03:50:38, skipping insertion in model container [2022-11-23 15:50:38,599 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:50:38" (3/3) ... [2022-11-23 15:50:38,600 INFO L112 eAbstractionObserver]: Analyzing ICFG uthash_OAT_test4-1.i [2022-11-23 15:50:38,619 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-23 15:50:38,619 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-23 15:50:38,670 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-23 15:50:38,683 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;@7b0ea8ad, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-23 15:50:38,684 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-23 15:50:38,688 INFO L276 IsEmpty]: Start isEmpty. Operand has 127 states, 107 states have (on average 1.794392523364486) internal successors, (192), 118 states have internal predecessors, (192), 16 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 7 states have call predecessors, (16), 16 states have call successors, (16) [2022-11-23 15:50:38,696 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-23 15:50:38,696 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:50:38,697 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 15:50:38,697 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 15:50:38,702 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:50:38,703 INFO L85 PathProgramCache]: Analyzing trace with hash 1318725013, now seen corresponding path program 1 times [2022-11-23 15:50:38,712 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:50:38,713 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [249500144] [2022-11-23 15:50:38,713 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:50:38,714 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:50:38,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:50:38,901 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 15:50:38,901 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:50:38,902 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [249500144] [2022-11-23 15:50:38,903 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [249500144] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:50:38,903 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:50:38,903 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-23 15:50:38,905 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1492028668] [2022-11-23 15:50:38,905 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:50:38,910 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 15:50:38,910 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:50:38,937 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 15:50:38,938 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 15:50:38,940 INFO L87 Difference]: Start difference. First operand has 127 states, 107 states have (on average 1.794392523364486) internal successors, (192), 118 states have internal predecessors, (192), 16 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 7 states have call predecessors, (16), 16 states have call successors, (16) Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 2 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 15:50:41,163 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.34s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-23 15:50:43,982 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.80s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-23 15:50:45,588 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.61s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-23 15:50:45,595 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:50:45,595 INFO L93 Difference]: Finished difference Result 347 states and 628 transitions. [2022-11-23 15:50:45,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 15:50:45,608 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 2 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2022-11-23 15:50:45,608 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:50:45,619 INFO L225 Difference]: With dead ends: 347 [2022-11-23 15:50:45,620 INFO L226 Difference]: Without dead ends: 220 [2022-11-23 15:50:45,623 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 15:50:45,627 INFO L413 NwaCegarLoop]: 164 mSDtfsCounter, 97 mSDsluCounter, 146 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 103 SdHoareTripleChecker+Valid, 310 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.6s IncrementalHoareTripleChecker+Time [2022-11-23 15:50:45,628 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [103 Valid, 310 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 6.6s Time] [2022-11-23 15:50:45,646 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 220 states. [2022-11-23 15:50:45,678 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 220 to 127. [2022-11-23 15:50:45,680 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 127 states, 108 states have (on average 1.212962962962963) internal successors, (131), 118 states have internal predecessors, (131), 16 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 7 states have call predecessors, (16), 16 states have call successors, (16) [2022-11-23 15:50:45,682 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127 states to 127 states and 163 transitions. [2022-11-23 15:50:45,684 INFO L78 Accepts]: Start accepts. Automaton has 127 states and 163 transitions. Word has length 8 [2022-11-23 15:50:45,684 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:50:45,685 INFO L495 AbstractCegarLoop]: Abstraction has 127 states and 163 transitions. [2022-11-23 15:50:45,685 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 2 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 15:50:45,685 INFO L276 IsEmpty]: Start isEmpty. Operand 127 states and 163 transitions. [2022-11-23 15:50:45,688 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2022-11-23 15:50:45,688 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:50:45,689 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] [2022-11-23 15:50:45,689 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-23 15:50:45,689 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 15:50:45,690 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:50:45,690 INFO L85 PathProgramCache]: Analyzing trace with hash -1742694732, now seen corresponding path program 1 times [2022-11-23 15:50:45,691 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:50:45,691 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [64745204] [2022-11-23 15:50:45,691 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:50:45,691 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:50:46,017 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-23 15:50:46,022 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2139213089] [2022-11-23 15:50:46,022 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:50:46,023 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 15:50:46,023 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0df2452f-5146-4b36-a349-26165821568f/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 15:50:46,030 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0df2452f-5146-4b36-a349-26165821568f/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 15:50:46,053 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0df2452f-5146-4b36-a349-26165821568f/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-23 15:50:47,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:50:47,425 INFO L263 TraceCheckSpWp]: Trace formula consists of 3056 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-23 15:50:47,433 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 15:50:47,595 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 15:50:47,595 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 15:50:47,727 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 15:50:47,728 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:50:47,731 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [64745204] [2022-11-23 15:50:47,731 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-23 15:50:47,732 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2139213089] [2022-11-23 15:50:47,732 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2139213089] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 15:50:47,732 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [976312319] [2022-11-23 15:50:47,762 INFO L159 IcfgInterpreter]: Started Sifa with 52 locations of interest [2022-11-23 15:50:47,763 INFO L166 IcfgInterpreter]: Building call graph [2022-11-23 15:50:47,775 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-23 15:50:47,781 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-23 15:50:47,785 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-23 15:50:47,927 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:50:47,936 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 [2022-11-23 15:50:47,952 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:50:47,953 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:50:47,956 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:50:48,014 INFO L321 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2022-11-23 15:50:48,015 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 [2022-11-23 15:50:48,082 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-11-23 15:50:48,084 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 27 treesize of output 41 [2022-11-23 15:50:48,106 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 [2022-11-23 15:50:48,127 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:50:48,128 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 [2022-11-23 15:50:48,623 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 [2022-11-23 15:50:48,658 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:50:48,659 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:50:48,660 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:50:48,661 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:50:48,662 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:50:48,664 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:50:48,665 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:50:48,666 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:50:48,667 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:50:48,668 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:50:48,669 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:50:48,671 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:50:48,673 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:50:48,688 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 [2022-11-23 15:50:48,723 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:50:48,724 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:50:48,725 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:50:48,726 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:50:48,727 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:50:48,728 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:50:48,729 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:50:48,730 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:50:48,731 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:50:48,732 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:50:48,734 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:50:48,735 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:50:48,736 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:50:48,740 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 [2022-11-23 15:50:48,780 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 [2022-11-23 15:50:48,825 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:50:48,826 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:50:48,828 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:50:48,842 INFO L321 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2022-11-23 15:50:48,842 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 [2022-11-23 15:50:48,881 INFO L321 Elim1Store]: treesize reduction 20, result has 48.7 percent of original size [2022-11-23 15:50:48,883 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 30 [2022-11-23 15:50:48,904 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:50:48,905 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 [2022-11-23 15:50:48,950 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-11-23 15:50:48,950 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 27 treesize of output 41 [2022-11-23 15:50:48,969 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:50:48,971 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 [2022-11-23 15:50:49,441 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 [2022-11-23 15:50:49,461 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:50:49,462 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:50:49,463 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:50:49,465 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:50:49,466 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:50:49,467 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:50:49,468 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:50:49,470 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:50:49,472 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:50:49,473 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:50:49,474 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:50:49,475 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:50:49,476 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:50:49,497 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 [2022-11-23 15:50:49,528 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:50:49,529 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:50:49,530 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:50:49,531 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:50:49,532 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:50:49,534 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:50:49,535 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:50:49,537 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:50:49,538 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:50:49,539 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:50:49,540 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:50:49,541 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:50:49,542 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:50:49,545 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 [2022-11-23 15:50:49,585 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 [2022-11-23 15:50:49,620 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-23 15:50:57,574 WARN L233 SmtUtils]: Spent 5.06s on a formula simplification. DAG size of input: 223 DAG size of output: 212 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 15:51:05,160 WARN L233 SmtUtils]: Spent 5.40s on a formula simplification. DAG size of input: 239 DAG size of output: 228 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 15:51:05,166 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [976312319] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:51:05,166 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-11-23 15:51:05,166 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [3, 3] total 11 [2022-11-23 15:51:05,167 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [448177282] [2022-11-23 15:51:05,168 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:51:05,168 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-23 15:51:05,169 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:51:05,169 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-23 15:51:05,169 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=69, Unknown=2, NotChecked=0, Total=132 [2022-11-23 15:51:05,170 INFO L87 Difference]: Start difference. First operand 127 states and 163 transitions. Second operand has 8 states, 8 states have (on average 6.375) internal successors, (51), 7 states have internal predecessors, (51), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 15:51:08,099 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] [2022-11-23 15:51:10,199 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-11-23 15:51:12,261 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-11-23 15:51:18,791 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.81s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-23 15:51:18,834 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:51:18,834 INFO L93 Difference]: Finished difference Result 265 states and 340 transitions. [2022-11-23 15:51:18,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-23 15:51:18,835 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.375) internal successors, (51), 7 states have internal predecessors, (51), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 52 [2022-11-23 15:51:18,835 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:51:18,837 INFO L225 Difference]: With dead ends: 265 [2022-11-23 15:51:18,837 INFO L226 Difference]: Without dead ends: 140 [2022-11-23 15:51:18,838 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 155 GetRequests, 144 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 16.2s TimeCoverageRelationStatistics Valid=71, Invalid=83, Unknown=2, NotChecked=0, Total=156 [2022-11-23 15:51:18,839 INFO L413 NwaCegarLoop]: 142 mSDtfsCounter, 7 mSDsluCounter, 324 mSDsCounter, 0 mSdLazyCounter, 215 mSolverCounterSat, 7 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 466 SdHoareTripleChecker+Invalid, 225 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 215 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.0s IncrementalHoareTripleChecker+Time [2022-11-23 15:51:18,842 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 466 Invalid, 225 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 215 Invalid, 3 Unknown, 0 Unchecked, 13.0s Time] [2022-11-23 15:51:18,843 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140 states. [2022-11-23 15:51:18,860 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140 to 137. [2022-11-23 15:51:18,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 137 states, 118 states have (on average 1.194915254237288) internal successors, (141), 128 states have internal predecessors, (141), 16 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 7 states have call predecessors, (16), 16 states have call successors, (16) [2022-11-23 15:51:18,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137 states to 137 states and 173 transitions. [2022-11-23 15:51:18,863 INFO L78 Accepts]: Start accepts. Automaton has 137 states and 173 transitions. Word has length 52 [2022-11-23 15:51:18,863 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:51:18,863 INFO L495 AbstractCegarLoop]: Abstraction has 137 states and 173 transitions. [2022-11-23 15:51:18,863 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.375) internal successors, (51), 7 states have internal predecessors, (51), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 15:51:18,864 INFO L276 IsEmpty]: Start isEmpty. Operand 137 states and 173 transitions. [2022-11-23 15:51:18,865 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2022-11-23 15:51:18,866 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:51:18,866 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] [2022-11-23 15:51:18,883 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0df2452f-5146-4b36-a349-26165821568f/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-23 15:51:19,083 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0df2452f-5146-4b36-a349-26165821568f/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2022-11-23 15:51:19,083 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 15:51:19,083 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:51:19,084 INFO L85 PathProgramCache]: Analyzing trace with hash 1270953821, now seen corresponding path program 1 times [2022-11-23 15:51:19,084 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:51:19,084 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [234955594] [2022-11-23 15:51:19,084 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:51:19,085 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:51:19,256 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-23 15:51:19,256 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [719811204] [2022-11-23 15:51:19,256 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:51:19,256 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 15:51:19,257 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0df2452f-5146-4b36-a349-26165821568f/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 15:51:19,258 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0df2452f-5146-4b36-a349-26165821568f/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 15:51:19,263 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0df2452f-5146-4b36-a349-26165821568f/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-23 15:51:20,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:51:20,401 INFO L263 TraceCheckSpWp]: Trace formula consists of 2193 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-23 15:51:20,406 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 15:51:20,516 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-23 15:51:20,516 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 15:51:20,632 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-23 15:51:20,632 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:51:20,632 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [234955594] [2022-11-23 15:51:20,633 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-23 15:51:20,633 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [719811204] [2022-11-23 15:51:20,633 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [719811204] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 15:51:20,633 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1735541304] [2022-11-23 15:51:20,637 INFO L159 IcfgInterpreter]: Started Sifa with 62 locations of interest [2022-11-23 15:51:20,637 INFO L166 IcfgInterpreter]: Building call graph [2022-11-23 15:51:20,638 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-23 15:51:20,638 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-23 15:51:20,638 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-23 15:51:20,821 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:51:20,822 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 [2022-11-23 15:51:20,861 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-11-23 15:51:20,862 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 27 treesize of output 41 [2022-11-23 15:51:20,881 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:51:20,882 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 [2022-11-23 15:51:20,892 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 [2022-11-23 15:51:20,902 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:51:20,903 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:51:20,906 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 [2022-11-23 15:51:21,194 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 [2022-11-23 15:51:21,210 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:51:21,212 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:51:21,213 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:51:21,214 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:51:21,216 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:51:21,217 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:51:21,219 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:51:21,220 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:51:21,221 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:51:21,222 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:51:21,224 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:51:21,225 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:51:21,226 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:51:21,239 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 [2022-11-23 15:51:21,304 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:51:21,305 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:51:21,306 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:51:21,307 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:51:21,308 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:51:21,310 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:51:21,311 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:51:21,312 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:51:21,313 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:51:21,314 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:51:21,315 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:51:21,317 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:51:21,318 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:51:21,321 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 9075036 treesize of output 5376290 [2022-11-23 15:51:21,357 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 [2022-11-23 15:51:21,391 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 [2022-11-23 15:51:21,412 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:51:21,413 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:51:21,415 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:51:21,419 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:51:21,421 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:51:21,422 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:51:21,423 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:51:21,424 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:51:21,426 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:51:21,427 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:51:21,428 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:51:21,429 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:51:21,430 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:51:21,431 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:51:21,433 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:51:21,434 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:51:21,435 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:51:21,452 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 [2022-11-23 15:51:21,481 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:51:21,482 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:51:21,484 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:51:21,485 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:51:21,486 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:51:21,487 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:51:21,488 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:51:21,489 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:51:21,490 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:51:21,491 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:51:21,492 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:51:21,493 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:51:21,494 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:51:21,495 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:51:21,497 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:51:21,498 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:51:21,499 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:51:21,501 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 [2022-11-23 15:51:21,530 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 [2022-11-23 15:51:21,574 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 [2022-11-23 15:51:21,645 INFO L321 Elim1Store]: treesize reduction 90, result has 33.8 percent of original size [2022-11-23 15:51:21,646 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 7 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 44 treesize of output 77 [2022-11-23 15:51:21,661 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 28 treesize of output 36 [2022-11-23 15:51:21,686 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 [2022-11-23 15:51:21,709 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:51:21,711 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:51:21,712 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:51:21,713 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:51:21,714 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:51:21,715 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:51:21,716 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:51:21,717 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:51:21,719 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:51:21,720 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:51:21,721 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:51:21,722 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:51:21,723 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:51:21,724 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:51:21,725 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:51:21,726 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:51:21,727 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:51:21,729 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 [2022-11-23 15:51:22,050 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:51:22,051 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 [2022-11-23 15:51:22,092 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-11-23 15:51:22,092 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 27 treesize of output 41 [2022-11-23 15:51:22,115 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:51:22,116 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 [2022-11-23 15:51:22,123 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:51:22,124 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:51:22,125 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 [2022-11-23 15:51:22,134 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 [2022-11-23 15:51:22,520 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 [2022-11-23 15:51:22,538 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 [2022-11-23 15:51:22,556 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:51:22,557 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:51:22,559 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:51:22,560 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:51:22,561 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:51:22,562 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:51:22,563 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:51:22,564 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:51:22,565 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:51:22,566 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:51:22,568 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:51:22,569 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:51:22,570 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:51:22,584 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 [2022-11-23 15:51:22,614 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:51:22,615 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:51:22,616 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:51:22,617 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:51:22,618 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:51:22,620 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:51:22,621 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:51:22,622 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:51:22,623 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:51:22,624 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:51:22,625 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:51:22,626 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:51:22,627 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:51:22,630 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 [2022-11-23 15:51:22,708 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 [2022-11-23 15:51:22,733 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:51:22,734 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:51:22,735 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:51:22,736 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:51:22,738 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:51:22,739 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:51:22,740 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:51:22,741 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:51:22,742 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:51:22,743 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:51:22,744 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:51:22,745 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:51:22,746 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:51:22,747 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:51:22,749 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:51:22,750 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:51:22,751 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:51:22,768 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 [2022-11-23 15:51:22,797 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:51:22,799 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:51:22,800 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:51:22,801 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:51:22,802 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:51:22,803 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:51:22,804 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:51:22,805 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:51:22,806 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:51:22,808 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:51:22,809 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:51:22,810 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:51:22,811 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:51:22,812 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:51:22,813 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:51:22,814 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:51:22,815 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:51:22,818 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 [2022-11-23 15:51:22,846 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 [2022-11-23 15:51:22,907 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 [2022-11-23 15:51:22,979 INFO L321 Elim1Store]: treesize reduction 90, result has 33.8 percent of original size [2022-11-23 15:51:22,979 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 7 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 44 treesize of output 77 [2022-11-23 15:51:22,997 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 28 treesize of output 36 [2022-11-23 15:51:23,023 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:51:23,024 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:51:23,026 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:51:23,027 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:51:23,028 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:51:23,030 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:51:23,031 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:51:23,032 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:51:23,033 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:51:23,035 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:51:23,036 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:51:23,037 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:51:23,038 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:51:23,040 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:51:23,041 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:51:23,042 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:51:23,043 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:51:23,048 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 [2022-11-23 15:51:23,083 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 [2022-11-23 15:51:23,439 INFO L197 IcfgInterpreter]: Interpreting procedure #Ultimate.C_memset with input of size 241 for LOIs [2022-11-23 15:51:23,537 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-23 15:51:29,625 WARN L233 SmtUtils]: Spent 5.10s on a formula simplification. DAG size of input: 223 DAG size of output: 212 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 15:51:37,875 WARN L233 SmtUtils]: Spent 6.13s on a formula simplification. DAG size of input: 239 DAG size of output: 228 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 15:51:48,030 WARN L233 SmtUtils]: Spent 6.00s on a formula simplification. DAG size of input: 250 DAG size of output: 240 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 15:52:00,102 WARN L233 SmtUtils]: Spent 5.92s on a formula simplification. DAG size of input: 272 DAG size of output: 254 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 15:52:12,417 WARN L233 SmtUtils]: Spent 6.13s on a formula simplification. DAG size of input: 272 DAG size of output: 254 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 15:52:13,081 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [1735541304] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:52:13,081 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-11-23 15:52:13,082 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [4, 4] total 17 [2022-11-23 15:52:13,082 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1829660326] [2022-11-23 15:52:13,082 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:52:13,083 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-23 15:52:13,083 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:52:13,083 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-23 15:52:13,084 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=91, Invalid=172, Unknown=9, NotChecked=0, Total=272 [2022-11-23 15:52:13,084 INFO L87 Difference]: Start difference. First operand 137 states and 173 transitions. Second operand has 13 states, 12 states have (on average 4.833333333333333) internal successors, (58), 11 states have internal predecessors, (58), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-23 15:52:15,644 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] [2022-11-23 15:52:17,868 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-11-23 15:52:19,948 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-11-23 15:52:22,050 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-11-23 15:52:24,076 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-11-23 15:52:26,087 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-11-23 15:52:28,132 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-11-23 15:52:30,165 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-11-23 15:52:32,175 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-11-23 15:52:38,227 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.16s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-23 15:52:41,592 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-11-23 15:52:43,845 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.19s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-23 15:52:45,403 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.03s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-23 15:52:46,891 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.19s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-23 15:52:47,018 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:52:47,019 INFO L93 Difference]: Finished difference Result 267 states and 342 transitions. [2022-11-23 15:52:47,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-23 15:52:47,019 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 4.833333333333333) internal successors, (58), 11 states have internal predecessors, (58), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 65 [2022-11-23 15:52:47,020 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:52:47,021 INFO L225 Difference]: With dead ends: 267 [2022-11-23 15:52:47,022 INFO L226 Difference]: Without dead ends: 142 [2022-11-23 15:52:47,023 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 193 GetRequests, 176 SyntacticMatches, 2 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 86 ImplicationChecksByTransitivity, 49.5s TimeCoverageRelationStatistics Valid=91, Invalid=172, Unknown=9, NotChecked=0, Total=272 [2022-11-23 15:52:47,024 INFO L413 NwaCegarLoop]: 141 mSDtfsCounter, 10 mSDsluCounter, 500 mSDsCounter, 0 mSdLazyCounter, 390 mSolverCounterSat, 6 mSolverCounterUnsat, 10 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 33.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 641 SdHoareTripleChecker+Invalid, 406 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 390 IncrementalHoareTripleChecker+Invalid, 10 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 33.9s IncrementalHoareTripleChecker+Time [2022-11-23 15:52:47,024 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 641 Invalid, 406 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 390 Invalid, 10 Unknown, 0 Unchecked, 33.9s Time] [2022-11-23 15:52:47,025 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 142 states. [2022-11-23 15:52:47,059 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 142 to 142. [2022-11-23 15:52:47,060 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 142 states, 122 states have (on average 1.1885245901639345) internal successors, (145), 132 states have internal predecessors, (145), 17 states have call successors, (17), 3 states have call predecessors, (17), 2 states have return successors, (17), 7 states have call predecessors, (17), 17 states have call successors, (17) [2022-11-23 15:52:47,062 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142 states to 142 states and 179 transitions. [2022-11-23 15:52:47,062 INFO L78 Accepts]: Start accepts. Automaton has 142 states and 179 transitions. Word has length 65 [2022-11-23 15:52:47,063 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:52:47,063 INFO L495 AbstractCegarLoop]: Abstraction has 142 states and 179 transitions. [2022-11-23 15:52:47,063 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 4.833333333333333) internal successors, (58), 11 states have internal predecessors, (58), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-23 15:52:47,063 INFO L276 IsEmpty]: Start isEmpty. Operand 142 states and 179 transitions. [2022-11-23 15:52:47,066 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-11-23 15:52:47,066 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:52:47,066 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] [2022-11-23 15:52:47,085 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0df2452f-5146-4b36-a349-26165821568f/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-23 15:52:47,279 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0df2452f-5146-4b36-a349-26165821568f/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 15:52:47,279 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 15:52:47,280 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:52:47,280 INFO L85 PathProgramCache]: Analyzing trace with hash -1298103213, now seen corresponding path program 1 times [2022-11-23 15:52:47,280 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:52:47,280 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1016361706] [2022-11-23 15:52:47,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:52:47,281 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:52:47,511 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-23 15:52:47,511 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1726626285] [2022-11-23 15:52:47,512 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:52:47,512 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 15:52:47,512 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0df2452f-5146-4b36-a349-26165821568f/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 15:52:47,513 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0df2452f-5146-4b36-a349-26165821568f/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 15:52:47,522 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0df2452f-5146-4b36-a349-26165821568f/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-23 15:52:48,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:52:48,822 INFO L263 TraceCheckSpWp]: Trace formula consists of 2208 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-23 15:52:48,830 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 15:52:48,965 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-11-23 15:52:48,966 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 15:52:49,162 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-11-23 15:52:49,162 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:52:49,162 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1016361706] [2022-11-23 15:52:49,162 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-23 15:52:49,162 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1726626285] [2022-11-23 15:52:49,162 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1726626285] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 15:52:49,163 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [618663683] [2022-11-23 15:52:49,167 INFO L159 IcfgInterpreter]: Started Sifa with 62 locations of interest [2022-11-23 15:52:49,168 INFO L166 IcfgInterpreter]: Building call graph [2022-11-23 15:52:49,168 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-23 15:52:49,169 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-23 15:52:49,169 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-23 15:52:49,256 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:52:49,257 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:52:49,259 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:52:49,277 INFO L321 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2022-11-23 15:52:49,277 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 [2022-11-23 15:52:49,337 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-11-23 15:52:49,338 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 27 treesize of output 41 [2022-11-23 15:52:49,367 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:52:49,368 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 [2022-11-23 15:52:49,377 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 [2022-11-23 15:52:49,398 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:52:49,399 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 [2022-11-23 15:52:49,755 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 [2022-11-23 15:52:49,775 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:52:49,776 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:52:49,777 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:52:49,779 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:52:49,780 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:52:49,781 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:52:49,783 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:52:49,784 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:52:49,785 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:52:49,786 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:52:49,788 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:52:49,789 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:52:49,790 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:52:49,805 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 [2022-11-23 15:52:49,834 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:52:49,836 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:52:49,837 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:52:49,838 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:52:49,839 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:52:49,841 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:52:49,842 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:52:49,843 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:52:49,845 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:52:49,846 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:52:49,847 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:52:49,848 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:52:49,850 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:52:49,852 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 [2022-11-23 15:52:49,887 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 [2022-11-23 15:52:49,926 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:52:49,928 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:52:49,929 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:52:49,930 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:52:49,932 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:52:49,933 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:52:49,934 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:52:49,936 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:52:49,937 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:52:49,938 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:52:49,939 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:52:49,941 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:52:49,942 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:52:49,943 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:52:49,945 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:52:49,946 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:52:49,948 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:52:49,968 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 [2022-11-23 15:52:49,999 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:52:50,000 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:52:50,001 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:52:50,003 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:52:50,004 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:52:50,005 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:52:50,006 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:52:50,007 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:52:50,009 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:52:50,010 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:52:50,011 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:52:50,012 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:52:50,014 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:52:50,015 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:52:50,016 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:52:50,017 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:52:50,019 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:52:50,021 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 [2022-11-23 15:52:50,050 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 [2022-11-23 15:52:50,065 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 [2022-11-23 15:52:50,121 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 [2022-11-23 15:52:50,140 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:52:50,142 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:52:50,143 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:52:50,144 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:52:50,146 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:52:50,147 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:52:50,148 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:52:50,150 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:52:50,151 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:52:50,153 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:52:50,154 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:52:50,156 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:52:50,157 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:52:50,158 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:52:50,160 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:52:50,161 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:52:50,162 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:52:50,165 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 [2022-11-23 15:52:50,208 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 [2022-11-23 15:52:50,287 INFO L321 Elim1Store]: treesize reduction 48, result has 48.9 percent of original size [2022-11-23 15:52:50,287 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 28 treesize of output 66 [2022-11-23 15:52:50,388 INFO L321 Elim1Store]: treesize reduction 90, result has 33.8 percent of original size [2022-11-23 15:52:50,388 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 7 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 44 treesize of output 77 [2022-11-23 15:52:50,569 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 [2022-11-23 15:52:50,574 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 [2022-11-23 15:52:50,580 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 [2022-11-23 15:52:50,600 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 [2022-11-23 15:52:50,610 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 [2022-11-23 15:52:50,619 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 [2022-11-23 15:52:50,646 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 [2022-11-23 15:52:50,652 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 [2022-11-23 15:52:50,660 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 [2022-11-23 15:52:50,750 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:52:50,752 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:52:50,753 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:52:50,754 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:52:50,756 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:52:50,757 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:52:50,758 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:52:50,760 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:52:50,761 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:52:50,762 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:52:50,764 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:52:50,765 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:52:50,766 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:52:50,769 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 [2022-11-23 15:52:50,805 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 [2022-11-23 15:52:50,826 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 [2022-11-23 15:52:51,007 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:52:51,009 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:52:51,010 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:52:51,012 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:52:51,013 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:52:51,015 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:52:51,016 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:52:51,018 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:52:51,019 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:52:51,020 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:52:51,022 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:52:51,023 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:52:51,025 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:52:51,027 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 [2022-11-23 15:52:51,049 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 [2022-11-23 15:52:51,070 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 [2022-11-23 15:52:52,328 INFO L217 Elim1Store]: Index analysis took 993 ms [2022-11-23 15:52:55,104 INFO L321 Elim1Store]: treesize reduction 96, result has 17.9 percent of original size [2022-11-23 15:52:55,105 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 9 case distinctions, treesize of input 10752670 treesize of output 10752673 [2022-11-23 15:52:56,037 INFO L217 Elim1Store]: Index analysis took 677 ms [2022-11-23 15:53:00,417 INFO L321 Elim1Store]: treesize reduction 144, result has 12.7 percent of original size [2022-11-23 15:53:00,418 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 4 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 10752675 treesize of output 10752677 [2022-11-23 15:53:10,300 WARN L233 SmtUtils]: Spent 9.84s on a formula simplification. DAG size of input: 67 DAG size of output: 32 (called from [L 318] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2022-11-23 15:53:10,301 INFO L321 Elim1Store]: treesize reduction 340, result has 16.0 percent of original size [2022-11-23 15:53:10,301 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 1986 treesize of output 1481 [2022-11-23 15:53:35,656 WARN L233 SmtUtils]: Spent 25.19s 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) [2022-11-23 15:53:35,656 INFO L321 Elim1Store]: treesize reduction 266, result has 31.6 percent of original size [2022-11-23 15:53:35,657 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 4 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 7 new quantified variables, introduced 8 case distinctions, treesize of input 2005 treesize of output 1829 [2022-11-23 15:53:36,600 INFO L217 Elim1Store]: Index analysis took 735 ms [2022-11-23 15:54:00,422 WARN L233 SmtUtils]: Spent 23.28s on a formula simplification. DAG size of input: 249 DAG size of output: 147 (called from [L 318] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2022-11-23 15:54:00,423 INFO L321 Elim1Store]: treesize reduction 2466, result has 32.0 percent of original size [2022-11-23 15:54:00,424 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 4 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 4 new quantified variables, introduced 16 case distinctions, treesize of input 1606 treesize of output 2097 [2022-11-23 15:54:02,269 INFO L217 Elim1Store]: Index analysis took 119 ms [2022-11-23 15:54:02,679 INFO L321 Elim1Store]: treesize reduction 13, result has 38.1 percent of original size [2022-11-23 15:54:02,679 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 91 treesize of output 73 [2022-11-23 15:54:02,816 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-11-23 15:54:03,500 INFO L217 Elim1Store]: Index analysis took 529 ms [2022-11-23 15:54:04,749 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-23 15:54:04,750 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 70 treesize of output 94 [2022-11-23 15:54:10,322 INFO L217 Elim1Store]: Index analysis took 556 ms