./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test3-1.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_da495177-3619-467e-ab43-59e94c9bbf74/bin/utaipan-Q6hlc19bkW/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da495177-3619-467e-ab43-59e94c9bbf74/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_da495177-3619-467e-ab43-59e94c9bbf74/bin/utaipan-Q6hlc19bkW/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da495177-3619-467e-ab43-59e94c9bbf74/bin/utaipan-Q6hlc19bkW/config/TaipanReach.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test3-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da495177-3619-467e-ab43-59e94c9bbf74/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_da495177-3619-467e-ab43-59e94c9bbf74/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 f6bf6d70eb07e52125f91259e05d2dabd63dc1b16a64b1f25a229511f6ff83f8 --- 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 16:09:34,328 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-23 16:09:34,331 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-23 16:09:34,371 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-23 16:09:34,372 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-23 16:09:34,376 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-23 16:09:34,378 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-23 16:09:34,381 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-23 16:09:34,383 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-23 16:09:34,388 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-23 16:09:34,390 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-23 16:09:34,391 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-23 16:09:34,392 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-23 16:09:34,395 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-23 16:09:34,396 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-23 16:09:34,398 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-23 16:09:34,400 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-23 16:09:34,401 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-23 16:09:34,402 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-23 16:09:34,409 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-23 16:09:34,410 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-23 16:09:34,412 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-23 16:09:34,414 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-23 16:09:34,415 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-23 16:09:34,424 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-23 16:09:34,425 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-23 16:09:34,425 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-23 16:09:34,427 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-23 16:09:34,427 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-23 16:09:34,429 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-23 16:09:34,430 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-23 16:09:34,431 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-23 16:09:34,433 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-23 16:09:34,434 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-23 16:09:34,435 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-23 16:09:34,435 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-23 16:09:34,436 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-23 16:09:34,436 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-23 16:09:34,436 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-23 16:09:34,438 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-23 16:09:34,439 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-23 16:09:34,440 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da495177-3619-467e-ab43-59e94c9bbf74/bin/utaipan-Q6hlc19bkW/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-11-23 16:09:34,474 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-23 16:09:34,475 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-23 16:09:34,476 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-23 16:09:34,476 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-23 16:09:34,477 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-23 16:09:34,477 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-23 16:09:34,477 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-23 16:09:34,478 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-23 16:09:34,478 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-23 16:09:34,478 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-23 16:09:34,479 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-23 16:09:34,480 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-23 16:09:34,480 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-23 16:09:34,480 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-23 16:09:34,481 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-23 16:09:34,481 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-23 16:09:34,481 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-23 16:09:34,481 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-23 16:09:34,482 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-23 16:09:34,482 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-23 16:09:34,483 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-23 16:09:34,483 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-23 16:09:34,483 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-23 16:09:34,484 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-23 16:09:34,484 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-23 16:09:34,484 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-23 16:09:34,484 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-23 16:09:34,485 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-23 16:09:34,485 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-23 16:09:34,486 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-23 16:09:34,486 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-23 16:09:34,486 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-23 16:09:34,487 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 16:09:34,487 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-23 16:09:34,487 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-23 16:09:34,488 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-23 16:09:34,488 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-23 16:09:34,488 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-23 16:09:34,488 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-23 16:09:34,489 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-23 16:09:34,489 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-23 16:09:34,489 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_da495177-3619-467e-ab43-59e94c9bbf74/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da495177-3619-467e-ab43-59e94c9bbf74/bin/utaipan-Q6hlc19bkW Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f6bf6d70eb07e52125f91259e05d2dabd63dc1b16a64b1f25a229511f6ff83f8 [2022-11-23 16:09:34,806 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-23 16:09:34,838 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-23 16:09:34,841 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-23 16:09:34,842 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-23 16:09:34,843 INFO L275 PluginConnector]: CDTParser initialized [2022-11-23 16:09:34,844 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da495177-3619-467e-ab43-59e94c9bbf74/bin/utaipan-Q6hlc19bkW/../../sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test3-1.i [2022-11-23 16:09:37,879 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-23 16:09:38,205 INFO L351 CDTParser]: Found 1 translation units. [2022-11-23 16:09:38,206 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da495177-3619-467e-ab43-59e94c9bbf74/sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test3-1.i [2022-11-23 16:09:38,225 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da495177-3619-467e-ab43-59e94c9bbf74/bin/utaipan-Q6hlc19bkW/data/a7ed404c6/4c6c183d7b77440bb599d7967645352b/FLAG90ac5da05 [2022-11-23 16:09:38,240 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da495177-3619-467e-ab43-59e94c9bbf74/bin/utaipan-Q6hlc19bkW/data/a7ed404c6/4c6c183d7b77440bb599d7967645352b [2022-11-23 16:09:38,242 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-23 16:09:38,244 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-23 16:09:38,245 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-23 16:09:38,245 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-23 16:09:38,249 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-23 16:09:38,250 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 04:09:38" (1/1) ... [2022-11-23 16:09:38,251 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3ecc2b40 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:09:38, skipping insertion in model container [2022-11-23 16:09:38,251 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 04:09:38" (1/1) ... [2022-11-23 16:09:38,259 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-23 16:09:38,306 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-23 16:09:38,757 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_da495177-3619-467e-ab43-59e94c9bbf74/sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test3-1.i[33021,33034] [2022-11-23 16:09:38,854 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_da495177-3619-467e-ab43-59e94c9bbf74/sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test3-1.i[44590,44603] [2022-11-23 16:09:38,861 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 16:09:38,871 INFO L203 MainTranslator]: Completed pre-run [2022-11-23 16:09:38,900 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_da495177-3619-467e-ab43-59e94c9bbf74/sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test3-1.i[33021,33034] [2022-11-23 16:09:38,994 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_da495177-3619-467e-ab43-59e94c9bbf74/sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test3-1.i[44590,44603] [2022-11-23 16:09:39,006 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 16:09:39,050 INFO L208 MainTranslator]: Completed translation [2022-11-23 16:09:39,051 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:09:39 WrapperNode [2022-11-23 16:09:39,051 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-23 16:09:39,052 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-23 16:09:39,052 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-23 16:09:39,052 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-23 16:09:39,060 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:09:39" (1/1) ... [2022-11-23 16:09:39,087 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:09:39" (1/1) ... [2022-11-23 16:09:39,145 INFO L138 Inliner]: procedures = 177, calls = 285, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 1022 [2022-11-23 16:09:39,146 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-23 16:09:39,147 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-23 16:09:39,147 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-23 16:09:39,147 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-23 16:09:39,157 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:09:39" (1/1) ... [2022-11-23 16:09:39,157 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:09:39" (1/1) ... [2022-11-23 16:09:39,169 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:09:39" (1/1) ... [2022-11-23 16:09:39,170 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:09:39" (1/1) ... [2022-11-23 16:09:39,257 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:09:39" (1/1) ... [2022-11-23 16:09:39,286 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:09:39" (1/1) ... [2022-11-23 16:09:39,295 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:09:39" (1/1) ... [2022-11-23 16:09:39,306 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:09:39" (1/1) ... [2022-11-23 16:09:39,313 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-23 16:09:39,319 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-23 16:09:39,319 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-23 16:09:39,319 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-23 16:09:39,322 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:09:39" (1/1) ... [2022-11-23 16:09:39,328 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 16:09:39,340 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da495177-3619-467e-ab43-59e94c9bbf74/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 16:09:39,356 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da495177-3619-467e-ab43-59e94c9bbf74/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-23 16:09:39,382 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da495177-3619-467e-ab43-59e94c9bbf74/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-23 16:09:39,403 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-23 16:09:39,404 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-11-23 16:09:39,404 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-11-23 16:09:39,404 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-23 16:09:39,404 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-23 16:09:39,404 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-23 16:09:39,405 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-23 16:09:39,405 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-23 16:09:39,405 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-23 16:09:39,405 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-23 16:09:39,405 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2022-11-23 16:09:39,406 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-23 16:09:39,406 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-23 16:09:39,407 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-23 16:09:39,407 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-23 16:09:39,407 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-23 16:09:39,636 INFO L235 CfgBuilder]: Building ICFG [2022-11-23 16:09:39,638 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-23 16:09:41,348 INFO L276 CfgBuilder]: Performing block encoding [2022-11-23 16:09:41,781 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-23 16:09:41,781 INFO L300 CfgBuilder]: Removed 63 assume(true) statements. [2022-11-23 16:09:41,784 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 04:09:41 BoogieIcfgContainer [2022-11-23 16:09:41,784 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-23 16:09:41,787 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-23 16:09:41,787 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-23 16:09:41,791 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-23 16:09:41,791 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 04:09:38" (1/3) ... [2022-11-23 16:09:41,793 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@8194ac6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 04:09:41, skipping insertion in model container [2022-11-23 16:09:41,793 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:09:39" (2/3) ... [2022-11-23 16:09:41,794 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@8194ac6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 04:09:41, skipping insertion in model container [2022-11-23 16:09:41,795 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 04:09:41" (3/3) ... [2022-11-23 16:09:41,796 INFO L112 eAbstractionObserver]: Analyzing ICFG uthash_SFH_test3-1.i [2022-11-23 16:09:41,819 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-23 16:09:41,820 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-11-23 16:09:41,868 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-23 16:09:41,875 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;@5f398fad, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-23 16:09:41,875 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-11-23 16:09:41,881 INFO L276 IsEmpty]: Start isEmpty. Operand has 123 states, 110 states have (on average 1.8) internal successors, (198), 117 states have internal predecessors, (198), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2022-11-23 16:09:41,889 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-23 16:09:41,889 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 16:09:41,890 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 16:09:41,891 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 16:09:41,897 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 16:09:41,898 INFO L85 PathProgramCache]: Analyzing trace with hash 1898435451, now seen corresponding path program 1 times [2022-11-23 16:09:41,909 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 16:09:41,909 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [965130918] [2022-11-23 16:09:41,910 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 16:09:41,911 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 16:09:42,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 16:09:42,099 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 16:09:42,099 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 16:09:42,100 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [965130918] [2022-11-23 16:09:42,101 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [965130918] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 16:09:42,101 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 16:09:42,101 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-23 16:09:42,102 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [158991147] [2022-11-23 16:09:42,103 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 16:09:42,107 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-23 16:09:42,109 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 16:09:42,161 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-23 16:09:42,162 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-23 16:09:42,165 INFO L87 Difference]: Start difference. First operand has 123 states, 110 states have (on average 1.8) internal successors, (198), 117 states have internal predecessors, (198), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) Second operand has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 16:09:42,596 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 16:09:42,597 INFO L93 Difference]: Finished difference Result 245 states and 432 transitions. [2022-11-23 16:09:42,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-23 16:09:42,602 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2022-11-23 16:09:42,602 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 16:09:42,610 INFO L225 Difference]: With dead ends: 245 [2022-11-23 16:09:42,610 INFO L226 Difference]: Without dead ends: 122 [2022-11-23 16:09:42,613 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-23 16:09:42,617 INFO L413 NwaCegarLoop]: 134 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 134 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-23 16:09:42,618 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 134 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-23 16:09:42,633 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122 states. [2022-11-23 16:09:42,655 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 122 to 122. [2022-11-23 16:09:42,657 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 122 states, 110 states have (on average 1.2181818181818183) internal successors, (134), 116 states have internal predecessors, (134), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2022-11-23 16:09:42,658 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 122 states and 150 transitions. [2022-11-23 16:09:42,660 INFO L78 Accepts]: Start accepts. Automaton has 122 states and 150 transitions. Word has length 8 [2022-11-23 16:09:42,660 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 16:09:42,660 INFO L495 AbstractCegarLoop]: Abstraction has 122 states and 150 transitions. [2022-11-23 16:09:42,661 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 16:09:42,661 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states and 150 transitions. [2022-11-23 16:09:42,661 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-11-23 16:09:42,662 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 16:09:42,662 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 16:09:42,662 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-23 16:09:42,662 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 16:09:42,663 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 16:09:42,663 INFO L85 PathProgramCache]: Analyzing trace with hash -94655351, now seen corresponding path program 1 times [2022-11-23 16:09:42,663 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 16:09:42,664 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1140596170] [2022-11-23 16:09:42,664 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 16:09:42,664 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 16:09:42,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 16:09:42,886 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 16:09:42,887 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 16:09:42,887 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1140596170] [2022-11-23 16:09:42,887 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1140596170] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 16:09:42,887 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 16:09:42,888 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 16:09:42,888 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1984119834] [2022-11-23 16:09:42,888 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 16:09:42,891 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-23 16:09:42,892 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 16:09:42,893 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-23 16:09:42,898 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-23 16:09:42,899 INFO L87 Difference]: Start difference. First operand 122 states and 150 transitions. Second operand has 4 states, 4 states have (on average 3.0) internal successors, (12), 3 states have internal predecessors, (12), 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 16:09:45,121 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.22s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-23 16:09:45,287 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 16:09:45,287 INFO L93 Difference]: Finished difference Result 258 states and 326 transitions. [2022-11-23 16:09:45,293 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-23 16:09:45,293 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.0) internal successors, (12), 3 states have internal predecessors, (12), 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 13 [2022-11-23 16:09:45,293 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 16:09:45,295 INFO L225 Difference]: With dead ends: 258 [2022-11-23 16:09:45,295 INFO L226 Difference]: Without dead ends: 189 [2022-11-23 16:09:45,296 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-23 16:09:45,297 INFO L413 NwaCegarLoop]: 128 mSDtfsCounter, 73 mSDsluCounter, 227 mSDsCounter, 0 mSdLazyCounter, 103 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 78 SdHoareTripleChecker+Valid, 355 SdHoareTripleChecker+Invalid, 105 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 103 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-11-23 16:09:45,298 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [78 Valid, 355 Invalid, 105 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 103 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2022-11-23 16:09:45,299 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 189 states. [2022-11-23 16:09:45,320 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 189 to 124. [2022-11-23 16:09:45,321 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 124 states, 112 states have (on average 1.2142857142857142) internal successors, (136), 118 states have internal predecessors, (136), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2022-11-23 16:09:45,322 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 124 states and 152 transitions. [2022-11-23 16:09:45,322 INFO L78 Accepts]: Start accepts. Automaton has 124 states and 152 transitions. Word has length 13 [2022-11-23 16:09:45,323 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 16:09:45,323 INFO L495 AbstractCegarLoop]: Abstraction has 124 states and 152 transitions. [2022-11-23 16:09:45,323 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.0) internal successors, (12), 3 states have internal predecessors, (12), 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 16:09:45,323 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 152 transitions. [2022-11-23 16:09:45,324 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2022-11-23 16:09:45,325 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 16:09:45,325 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-11-23 16:09:45,325 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-23 16:09:45,325 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 16:09:45,326 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 16:09:45,326 INFO L85 PathProgramCache]: Analyzing trace with hash 339208180, now seen corresponding path program 1 times [2022-11-23 16:09:45,326 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 16:09:45,327 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2135221593] [2022-11-23 16:09:45,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 16:09:45,327 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 16:09:45,511 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-23 16:09:45,513 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1378344008] [2022-11-23 16:09:45,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 16:09:45,513 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 16:09:45,514 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da495177-3619-467e-ab43-59e94c9bbf74/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 16:09:45,518 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da495177-3619-467e-ab43-59e94c9bbf74/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 16:09:45,546 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da495177-3619-467e-ab43-59e94c9bbf74/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-23 16:09:46,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 16:09:46,334 INFO L263 TraceCheckSpWp]: Trace formula consists of 1630 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-23 16:09:46,341 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 16:09:46,430 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 16:09:46,430 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 16:09:46,430 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 16:09:46,431 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2135221593] [2022-11-23 16:09:46,431 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-23 16:09:46,431 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1378344008] [2022-11-23 16:09:46,431 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1378344008] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 16:09:46,431 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 16:09:46,432 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-23 16:09:46,432 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1287406167] [2022-11-23 16:09:46,432 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 16:09:46,432 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 16:09:46,433 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 16:09:46,433 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 16:09:46,433 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 16:09:46,433 INFO L87 Difference]: Start difference. First operand 124 states and 152 transitions. Second operand has 3 states, 3 states have (on average 12.0) internal successors, (36), 2 states have internal predecessors, (36), 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 16:09:47,516 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 16:09:47,516 INFO L93 Difference]: Finished difference Result 304 states and 377 transitions. [2022-11-23 16:09:47,521 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 16:09:47,521 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 2 states have internal predecessors, (36), 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 37 [2022-11-23 16:09:47,521 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 16:09:47,522 INFO L225 Difference]: With dead ends: 304 [2022-11-23 16:09:47,523 INFO L226 Difference]: Without dead ends: 183 [2022-11-23 16:09:47,523 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 35 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 16:09:47,524 INFO L413 NwaCegarLoop]: 165 mSDtfsCounter, 58 mSDsluCounter, 113 mSDsCounter, 0 mSdLazyCounter, 55 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 278 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 55 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-11-23 16:09:47,525 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [65 Valid, 278 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 55 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-11-23 16:09:47,526 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 183 states. [2022-11-23 16:09:47,543 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 183 to 167. [2022-11-23 16:09:47,549 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 167 states, 155 states have (on average 1.1935483870967742) internal successors, (185), 161 states have internal predecessors, (185), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2022-11-23 16:09:47,550 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 167 states to 167 states and 201 transitions. [2022-11-23 16:09:47,557 INFO L78 Accepts]: Start accepts. Automaton has 167 states and 201 transitions. Word has length 37 [2022-11-23 16:09:47,558 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 16:09:47,558 INFO L495 AbstractCegarLoop]: Abstraction has 167 states and 201 transitions. [2022-11-23 16:09:47,558 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 2 states have internal predecessors, (36), 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 16:09:47,559 INFO L276 IsEmpty]: Start isEmpty. Operand 167 states and 201 transitions. [2022-11-23 16:09:47,560 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2022-11-23 16:09:47,562 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 16:09:47,562 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 16:09:47,577 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da495177-3619-467e-ab43-59e94c9bbf74/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-23 16:09:47,763 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da495177-3619-467e-ab43-59e94c9bbf74/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 16:09:47,763 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 16:09:47,764 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 16:09:47,764 INFO L85 PathProgramCache]: Analyzing trace with hash -1571641394, now seen corresponding path program 1 times [2022-11-23 16:09:47,764 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 16:09:47,764 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [116883148] [2022-11-23 16:09:47,764 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 16:09:47,765 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 16:09:47,823 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-23 16:09:47,824 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1930917404] [2022-11-23 16:09:47,824 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 16:09:47,824 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 16:09:47,824 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da495177-3619-467e-ab43-59e94c9bbf74/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 16:09:47,825 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da495177-3619-467e-ab43-59e94c9bbf74/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 16:09:47,835 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da495177-3619-467e-ab43-59e94c9bbf74/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-23 16:09:48,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 16:09:48,404 INFO L263 TraceCheckSpWp]: Trace formula consists of 767 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-23 16:09:48,409 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 16:09:48,494 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-23 16:09:48,519 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2022-11-23 16:09:48,528 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-11-23 16:09:48,529 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 16:09:48,529 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 16:09:48,529 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [116883148] [2022-11-23 16:09:48,529 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-23 16:09:48,530 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1930917404] [2022-11-23 16:09:48,530 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1930917404] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 16:09:48,531 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 16:09:48,531 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-23 16:09:48,531 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2018977592] [2022-11-23 16:09:48,532 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 16:09:48,532 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-23 16:09:48,533 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 16:09:48,533 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-23 16:09:48,533 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-23 16:09:48,534 INFO L87 Difference]: Start difference. First operand 167 states and 201 transitions. Second operand has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-23 16:09:50,234 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 16:09:50,234 INFO L93 Difference]: Finished difference Result 231 states and 285 transitions. [2022-11-23 16:09:50,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-23 16:09:50,238 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 50 [2022-11-23 16:09:50,238 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 16:09:50,239 INFO L225 Difference]: With dead ends: 231 [2022-11-23 16:09:50,239 INFO L226 Difference]: Without dead ends: 212 [2022-11-23 16:09:50,240 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-23 16:09:50,241 INFO L413 NwaCegarLoop]: 125 mSDtfsCounter, 47 mSDsluCounter, 229 mSDsCounter, 0 mSdLazyCounter, 94 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 354 SdHoareTripleChecker+Invalid, 95 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 94 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-11-23 16:09:50,241 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [47 Valid, 354 Invalid, 95 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 94 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-11-23 16:09:50,242 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 212 states. [2022-11-23 16:09:50,253 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 212 to 169. [2022-11-23 16:09:50,254 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 169 states, 157 states have (on average 1.1910828025477707) internal successors, (187), 163 states have internal predecessors, (187), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2022-11-23 16:09:50,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 169 states to 169 states and 203 transitions. [2022-11-23 16:09:50,255 INFO L78 Accepts]: Start accepts. Automaton has 169 states and 203 transitions. Word has length 50 [2022-11-23 16:09:50,256 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 16:09:50,256 INFO L495 AbstractCegarLoop]: Abstraction has 169 states and 203 transitions. [2022-11-23 16:09:50,256 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-23 16:09:50,256 INFO L276 IsEmpty]: Start isEmpty. Operand 169 states and 203 transitions. [2022-11-23 16:09:50,258 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2022-11-23 16:09:50,258 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 16:09:50,258 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 16:09:50,274 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da495177-3619-467e-ab43-59e94c9bbf74/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-23 16:09:50,466 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da495177-3619-467e-ab43-59e94c9bbf74/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 16:09:50,466 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 16:09:50,467 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 16:09:50,467 INFO L85 PathProgramCache]: Analyzing trace with hash 2144578966, now seen corresponding path program 1 times [2022-11-23 16:09:50,467 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 16:09:50,467 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [300494496] [2022-11-23 16:09:50,467 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 16:09:50,467 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 16:09:50,542 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-23 16:09:50,548 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1470438580] [2022-11-23 16:09:50,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 16:09:50,549 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 16:09:50,549 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da495177-3619-467e-ab43-59e94c9bbf74/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 16:09:50,555 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da495177-3619-467e-ab43-59e94c9bbf74/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 16:09:50,583 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da495177-3619-467e-ab43-59e94c9bbf74/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-23 16:09:51,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 16:09:51,126 INFO L263 TraceCheckSpWp]: Trace formula consists of 796 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-23 16:09:51,130 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 16:09:51,244 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-23 16:09:51,244 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 16:09:51,244 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 16:09:51,244 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [300494496] [2022-11-23 16:09:51,245 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-23 16:09:51,245 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1470438580] [2022-11-23 16:09:51,245 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1470438580] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 16:09:51,245 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 16:09:51,245 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-23 16:09:51,246 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1285578677] [2022-11-23 16:09:51,246 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 16:09:51,246 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-23 16:09:51,246 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 16:09:51,247 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-23 16:09:51,247 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-23 16:09:51,247 INFO L87 Difference]: Start difference. First operand 169 states and 203 transitions. Second operand has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-23 16:09:52,154 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 16:09:52,154 INFO L93 Difference]: Finished difference Result 395 states and 492 transitions. [2022-11-23 16:09:52,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-23 16:09:52,155 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 57 [2022-11-23 16:09:52,155 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 16:09:52,156 INFO L225 Difference]: With dead ends: 395 [2022-11-23 16:09:52,157 INFO L226 Difference]: Without dead ends: 242 [2022-11-23 16:09:52,157 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-23 16:09:52,158 INFO L413 NwaCegarLoop]: 147 mSDtfsCounter, 260 mSDsluCounter, 143 mSDsCounter, 0 mSdLazyCounter, 88 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 265 SdHoareTripleChecker+Valid, 290 SdHoareTripleChecker+Invalid, 102 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 88 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-11-23 16:09:52,159 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [265 Valid, 290 Invalid, 102 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 88 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-11-23 16:09:52,160 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 242 states. [2022-11-23 16:09:52,177 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 242 to 214. [2022-11-23 16:09:52,178 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 214 states, 202 states have (on average 1.193069306930693) internal successors, (241), 208 states have internal predecessors, (241), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2022-11-23 16:09:52,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 214 states to 214 states and 257 transitions. [2022-11-23 16:09:52,180 INFO L78 Accepts]: Start accepts. Automaton has 214 states and 257 transitions. Word has length 57 [2022-11-23 16:09:52,180 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 16:09:52,180 INFO L495 AbstractCegarLoop]: Abstraction has 214 states and 257 transitions. [2022-11-23 16:09:52,180 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-23 16:09:52,181 INFO L276 IsEmpty]: Start isEmpty. Operand 214 states and 257 transitions. [2022-11-23 16:09:52,182 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-11-23 16:09:52,182 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 16:09:52,183 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 16:09:52,195 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da495177-3619-467e-ab43-59e94c9bbf74/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-23 16:09:52,390 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da495177-3619-467e-ab43-59e94c9bbf74/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 16:09:52,391 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 16:09:52,391 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 16:09:52,391 INFO L85 PathProgramCache]: Analyzing trace with hash 2121750984, now seen corresponding path program 1 times [2022-11-23 16:09:52,391 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 16:09:52,391 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [207420358] [2022-11-23 16:09:52,392 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 16:09:52,392 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 16:09:52,490 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-23 16:09:52,491 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [108023493] [2022-11-23 16:09:52,491 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 16:09:52,491 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 16:09:52,491 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da495177-3619-467e-ab43-59e94c9bbf74/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 16:09:52,495 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da495177-3619-467e-ab43-59e94c9bbf74/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 16:09:52,504 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da495177-3619-467e-ab43-59e94c9bbf74/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-23 16:10:04,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 16:10:04,362 INFO L263 TraceCheckSpWp]: Trace formula consists of 822 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-23 16:10:04,366 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 16:10:04,391 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-23 16:10:04,397 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 16:10:04,397 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 16:10:04,398 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [207420358] [2022-11-23 16:10:04,398 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-23 16:10:04,398 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [108023493] [2022-11-23 16:10:04,398 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [108023493] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 16:10:04,398 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 16:10:04,399 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-23 16:10:04,399 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1969389318] [2022-11-23 16:10:04,399 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 16:10:04,399 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-23 16:10:04,400 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 16:10:04,400 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-23 16:10:04,400 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-23 16:10:04,401 INFO L87 Difference]: Start difference. First operand 214 states and 257 transitions. Second operand has 4 states, 3 states have (on average 20.0) internal successors, (60), 4 states have internal predecessors, (60), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-23 16:10:05,414 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 16:10:05,415 INFO L93 Difference]: Finished difference Result 411 states and 498 transitions. [2022-11-23 16:10:05,418 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-23 16:10:05,418 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 20.0) internal successors, (60), 4 states have internal predecessors, (60), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 64 [2022-11-23 16:10:05,419 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 16:10:05,420 INFO L225 Difference]: With dead ends: 411 [2022-11-23 16:10:05,420 INFO L226 Difference]: Without dead ends: 216 [2022-11-23 16:10:05,421 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 61 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-23 16:10:05,421 INFO L413 NwaCegarLoop]: 132 mSDtfsCounter, 1 mSDsluCounter, 260 mSDsCounter, 0 mSdLazyCounter, 57 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 392 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 57 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-11-23 16:10:05,422 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 392 Invalid, 58 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 57 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-11-23 16:10:05,422 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 216 states. [2022-11-23 16:10:05,438 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 216 to 216. [2022-11-23 16:10:05,439 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 216 states, 203 states have (on average 1.1970443349753694) internal successors, (243), 210 states have internal predecessors, (243), 8 states have call successors, (8), 2 states have call predecessors, (8), 3 states have return successors, (9), 4 states have call predecessors, (9), 8 states have call successors, (9) [2022-11-23 16:10:05,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 216 states to 216 states and 260 transitions. [2022-11-23 16:10:05,441 INFO L78 Accepts]: Start accepts. Automaton has 216 states and 260 transitions. Word has length 64 [2022-11-23 16:10:05,441 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 16:10:05,441 INFO L495 AbstractCegarLoop]: Abstraction has 216 states and 260 transitions. [2022-11-23 16:10:05,442 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 20.0) internal successors, (60), 4 states have internal predecessors, (60), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-23 16:10:05,442 INFO L276 IsEmpty]: Start isEmpty. Operand 216 states and 260 transitions. [2022-11-23 16:10:05,443 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-11-23 16:10:05,443 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 16:10:05,444 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 16:10:05,466 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da495177-3619-467e-ab43-59e94c9bbf74/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-23 16:10:05,658 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da495177-3619-467e-ab43-59e94c9bbf74/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 16:10:05,659 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 16:10:05,659 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 16:10:05,660 INFO L85 PathProgramCache]: Analyzing trace with hash -869473738, now seen corresponding path program 1 times [2022-11-23 16:10:05,660 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 16:10:05,660 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1854195731] [2022-11-23 16:10:05,660 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 16:10:05,660 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 16:10:05,727 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-23 16:10:05,727 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [14246177] [2022-11-23 16:10:05,728 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 16:10:05,728 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 16:10:05,728 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da495177-3619-467e-ab43-59e94c9bbf74/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 16:10:05,729 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da495177-3619-467e-ab43-59e94c9bbf74/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 16:10:05,754 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da495177-3619-467e-ab43-59e94c9bbf74/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-23 16:10:42,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 16:10:42,803 INFO L263 TraceCheckSpWp]: Trace formula consists of 852 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-23 16:10:42,807 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 16:10:42,836 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 8 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-23 16:10:42,836 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 16:10:42,925 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 2 proven. 6 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-23 16:10:42,926 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 16:10:42,926 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1854195731] [2022-11-23 16:10:42,926 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-23 16:10:42,926 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [14246177] [2022-11-23 16:10:42,927 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [14246177] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 16:10:42,927 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1172617576] [2022-11-23 16:10:42,948 INFO L159 IcfgInterpreter]: Started Sifa with 60 locations of interest [2022-11-23 16:10:42,948 INFO L166 IcfgInterpreter]: Building call graph [2022-11-23 16:10:42,952 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-23 16:10:42,957 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-23 16:10:42,958 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-23 16:10:43,063 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-11-23 16:10:43,068 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-11-23 16:10:43,075 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:10:43,091 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-11-23 16:10:43,091 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 17 treesize of output 26 [2022-11-23 16:10:43,101 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:10:43,102 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 28 [2022-11-23 16:10:43,113 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:10:43,130 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-23 16:10:43,130 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 27 treesize of output 37 [2022-11-23 16:10:43,164 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:10:43,169 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:10:43,171 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:10:43,172 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:10:43,174 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:10:43,189 INFO L321 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2022-11-23 16:10:43,190 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 8 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 52 treesize of output 53 [2022-11-23 16:10:43,206 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:10:43,208 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:10:43,240 INFO L321 Elim1Store]: treesize reduction 20, result has 48.7 percent of original size [2022-11-23 16:10:43,240 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 22 treesize of output 38 [2022-11-23 16:10:43,266 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:10:43,267 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 16:10:43,278 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:10:43,279 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:10:43,316 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-11-23 16:10:43,317 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 8 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 32 treesize of output 49 [2022-11-23 16:10:43,340 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:10:43,341 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 16:10:43,788 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:10:43,790 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:10:43,791 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:10:43,793 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:10:43,794 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:10:43,795 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:10:43,796 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:10:43,797 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:10:43,799 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:10:43,800 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:10:43,801 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:10:43,802 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:10:43,804 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:10:43,805 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:10:43,806 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:10:43,822 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 29 disjoint index pairs (out of 36 index pairs), introduced 8 new quantified variables, introduced 0 case distinctions, treesize of input 9897009 treesize of output 5376288 [2022-11-23 16:10:43,858 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:10:43,859 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:10:43,860 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:10:43,861 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:10:43,862 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:10:43,864 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:10:43,865 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:10:43,866 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:10:43,867 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:10:43,868 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:10:43,869 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:10:43,870 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:10:43,871 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:10:43,872 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:10:43,874 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:10:43,875 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:10:43,876 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:10:43,879 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 29 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 9897007 treesize of output 5376300 [2022-11-23 16:10:43,956 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 16:10:43,973 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 16:10:44,008 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 16:10:44,020 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 31 [2022-11-23 16:10:44,040 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:10:44,042 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:10:44,043 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:10:44,044 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:10:44,045 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:10:44,047 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:10:44,048 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:10:44,049 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:10:44,050 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:10:44,052 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:10:44,053 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:10:44,055 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:10:44,056 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:10:44,058 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:10:44,059 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:10:44,060 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:10:44,061 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:10:44,062 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:10:44,064 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:10:44,084 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 10 select indices, 10 select index equivalence classes, 36 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 0 case distinctions, treesize of input 8458592 treesize of output 4759837 [2022-11-23 16:10:44,117 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:10:44,119 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:10:44,120 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:10:44,121 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:10:44,122 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:10:44,124 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:10:44,125 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:10:44,126 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:10:44,127 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:10:44,128 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:10:44,130 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:10:44,131 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:10:44,133 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:10:44,134 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:10:44,136 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:10:44,137 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:10:44,138 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:10:44,140 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:10:44,141 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:10:44,144 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 10 select indices, 10 select index equivalence classes, 36 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 0 case distinctions, treesize of input 8458592 treesize of output 4759837 [2022-11-23 16:10:44,210 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:10:44,215 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:10:44,217 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:10:44,218 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:10:44,219 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:10:44,220 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:10:44,221 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:10:44,222 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:10:44,223 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:10:44,224 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:10:44,225 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:10:44,227 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:10:44,228 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:10:44,229 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:10:44,230 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:10:44,231 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:10:44,232 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:10:44,233 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:10:44,234 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:10:44,237 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 10 select indices, 10 select index equivalence classes, 36 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 0 case distinctions, treesize of input 8458592 treesize of output 4759837 [2022-11-23 16:10:44,279 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 16:10:44,296 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:10:44,298 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:10:44,299 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:10:44,350 INFO L321 Elim1Store]: treesize reduction 48, result has 48.9 percent of original size [2022-11-23 16:10:44,351 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 33 treesize of output 74 [2022-11-23 16:10:44,373 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:10:44,378 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:10:44,380 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:10:44,435 INFO L321 Elim1Store]: treesize reduction 90, result has 33.8 percent of original size [2022-11-23 16:10:44,436 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 12 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 6 case distinctions, treesize of input 49 treesize of output 85 [2022-11-23 16:10:44,468 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 16:10:44,672 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-23 16:10:44,677 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-23 16:10:44,682 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-23 16:10:44,732 INFO L321 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2022-11-23 16:10:44,732 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 51 treesize of output 54 [2022-11-23 16:10:44,764 INFO L321 Elim1Store]: treesize reduction 15, result has 42.3 percent of original size [2022-11-23 16:10:44,764 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 49 treesize of output 52 [2022-11-23 16:10:44,792 INFO L321 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2022-11-23 16:10:44,792 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 43 treesize of output 46 [2022-11-23 16:10:44,830 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 16:10:44,834 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 16:10:44,841 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 16:10:44,902 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 16:10:44,926 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 16:10:44,952 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:10:44,953 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:10:44,954 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:10:44,956 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:10:44,957 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:10:44,958 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:10:44,959 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:10:44,960 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:10:44,962 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:10:44,963 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:10:44,964 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:10:44,965 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:10:44,966 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:10:44,968 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:10:44,969 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:10:44,971 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 10 select indices, 10 select index equivalence classes, 30 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 0 case distinctions, treesize of input 8458573 treesize of output 4759755 [2022-11-23 16:10:45,193 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 16:10:45,220 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:10:45,221 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:10:45,222 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:10:45,224 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:10:45,225 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:10:45,226 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:10:45,227 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:10:45,228 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:10:45,229 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:10:45,230 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:10:45,231 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:10:45,232 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:10:45,234 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:10:45,235 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:10:45,236 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:10:45,238 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 10 select indices, 10 select index equivalence classes, 30 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 0 case distinctions, treesize of input 8458573 treesize of output 4759755 [2022-11-23 16:10:45,260 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 16:10:46,206 INFO L217 Elim1Store]: Index analysis took 599 ms [2022-11-23 16:10:50,972 INFO L321 Elim1Store]: treesize reduction 190, result has 18.1 percent of original size [2022-11-23 16:10:50,973 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 7 select indices, 7 select index equivalence classes, 4 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 22 case distinctions, treesize of input 9519777 treesize of output 9519796 [2022-11-23 16:10:52,114 INFO L217 Elim1Store]: Index analysis took 941 ms [2022-11-23 16:10:52,732 INFO L321 Elim1Store]: treesize reduction 87, result has 5.4 percent of original size [2022-11-23 16:10:52,733 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 9519772 treesize of output 9519776 [2022-11-23 16:11:02,529 WARN L233 SmtUtils]: Spent 9.67s 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 16:11:02,530 INFO L321 Elim1Store]: treesize reduction 340, result has 16.0 percent of original size [2022-11-23 16:11:02,530 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 1986 treesize of output 1476 [2022-11-23 16:11:02,867 INFO L217 Elim1Store]: Index analysis took 143 ms [2022-11-23 16:11:27,318 WARN L233 SmtUtils]: Spent 24.45s 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 16:11:27,319 INFO L321 Elim1Store]: treesize reduction 266, result has 31.6 percent of original size [2022-11-23 16:11:27,320 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 4 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 7 new quantified variables, introduced 8 case distinctions, treesize of input 2005 treesize of output 1834 [2022-11-23 16:11:29,251 INFO L217 Elim1Store]: Index analysis took 1291 ms [2022-11-23 16:11:56,691 WARN L233 SmtUtils]: Spent 26.48s on a formula simplification. DAG size of input: 258 DAG size of output: 156 (called from [L 318] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2022-11-23 16:11:56,692 INFO L321 Elim1Store]: treesize reduction 13218, result has 27.3 percent of original size [2022-11-23 16:11:56,693 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 4 stores, 0 select indices, 0 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 4 new quantified variables, introduced 16 case distinctions, treesize of input 3622 treesize of output 7921 [2022-11-23 16:11:58,433 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 16:11:58,435 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 90 treesize of output 69 [2022-11-23 16:11:58,589 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:11:58,614 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:11:58,615 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 16:11:58,619 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 69 treesize of output 55 [2022-11-23 16:11:59,906 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:11:59,907 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 14 [2022-11-23 16:11:59,984 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:11:59,986 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 11 [2022-11-23 16:12:03,743 INFO L321 Elim1Store]: treesize reduction 550, result has 14.1 percent of original size [2022-11-23 16:12:03,744 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 14 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 16 new quantified variables, introduced 18 case distinctions, treesize of input 51016 treesize of output 53256 [2022-11-23 16:12:12,052 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-23 16:12:12,766 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-23 16:12:12,767 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 40846 treesize of output 40854 [2022-11-23 16:12:13,769 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-23 16:12:21,264 WARN L233 SmtUtils]: Spent 5.37s on a formula simplification. DAG size of input: 45 DAG size of output: 37 (called from [L 318] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2022-11-23 16:12:21,265 INFO L321 Elim1Store]: treesize reduction 185, result has 49.9 percent of original size [2022-11-23 16:12:21,266 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 66514 treesize of output 65984 [2022-11-23 16:12:22,418 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 43142 treesize of output 43102 [2022-11-23 16:12:24,376 INFO L321 Elim1Store]: treesize reduction 17, result has 48.5 percent of original size [2022-11-23 16:12:24,378 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 40846 treesize of output 40828 [2022-11-23 16:12:25,268 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 15 [2022-11-23 16:12:27,717 INFO L321 Elim1Store]: treesize reduction 45, result has 49.4 percent of original size [2022-11-23 16:12:27,718 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 56608 treesize of output 56496 [2022-11-23 16:12:59,106 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 16:12:59,492 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 16:12:59,492 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 16:12:59,680 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 16:13:00,646 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 16:13:02,298 INFO L217 Elim1Store]: Index analysis took 5943 ms [2022-11-23 16:13:02,299 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 16:13:02,300 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 16:13:02,301 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 16:13:02,302 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 16:13:02,303 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 16:13:02,304 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 16:13:02,304 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 16:13:02,305 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 16:13:02,306 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 16:13:02,307 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 16:13:02,310 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 13 stores, 1 select indices, 1 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 545 treesize of output 4453 [2022-11-23 16:13:02,491 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 15 [2022-11-23 16:13:04,253 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 16:13:07,488 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 16:13:09,018 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 16:13:09,256 INFO L217 Elim1Store]: Index analysis took 6098 ms [2022-11-23 16:13:09,258 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 16:13:09,258 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 16:13:09,259 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 16:13:09,260 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 16:13:09,261 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 16:13:09,262 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 16:13:09,263 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 16:13:09,264 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 16:13:09,265 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 16:13:09,266 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 16:13:09,268 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 13 stores, 0 select indices, 0 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 293 treesize of output 2247 [2022-11-23 16:13:10,389 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 16:13:10,484 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 16:13:13,303 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 16:13:13,994 INFO L217 Elim1Store]: Index analysis took 4448 ms [2022-11-23 16:13:13,995 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 16:13:13,996 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 16:13:13,997 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 16:13:13,998 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 16:13:13,998 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 16:13:13,999 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 16:13:14,000 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 16:13:14,001 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 16:13:14,001 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 16:13:14,002 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 16:13:14,005 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 13 stores, 0 select indices, 0 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 293 treesize of output 2257 [2022-11-23 16:13:14,349 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:13:14,418 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:13:14,420 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 24 [2022-11-23 16:13:15,530 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:13:15,572 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:13:15,854 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 16:13:17,344 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 16:13:17,429 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:13:17,449 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:13:17,833 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 16:13:18,240 INFO L217 Elim1Store]: Index analysis took 3403 ms [2022-11-23 16:13:18,241 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 16:13:18,242 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 16:13:18,242 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 16:13:18,243 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 16:13:18,244 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 16:13:18,245 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 16:13:18,246 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 16:13:18,246 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 16:13:18,247 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 16:13:18,248 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 16:13:18,250 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 13 stores, 0 select indices, 0 select index equivalence classes, 7 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 293 treesize of output 2269 [2022-11-23 16:13:18,553 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:13:18,578 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:13:18,579 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 26 [2022-11-23 16:13:18,878 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-23 16:13:20,328 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 16:13:20,453 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 16:13:20,848 INFO L217 Elim1Store]: Index analysis took 1895 ms [2022-11-23 16:13:20,850 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 16:13:20,854 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 16:13:20,855 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 16:13:20,856 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 16:13:20,857 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 16:13:20,858 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 16:13:20,859 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 16:13:20,860 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 16:13:20,861 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 16:13:20,866 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 16 stores, 0 select indices, 0 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 40009 treesize of output 43909 [2022-11-23 16:13:26,087 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 16:13:30,094 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 16:13:31,417 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 16:13:31,616 INFO L217 Elim1Store]: Index analysis took 6533 ms [2022-11-23 16:13:31,617 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 16:13:31,618 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 16:13:31,618 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 16:13:31,619 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 16:13:31,620 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 16:13:31,621 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 16:13:31,621 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 16:13:31,622 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 16:13:31,623 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 16:13:31,624 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 16:13:31,626 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 13 stores, 0 select indices, 0 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 293 treesize of output 2215 [2022-11-23 16:13:32,041 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:13:32,078 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:13:32,079 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 380 treesize of output 194 [2022-11-23 16:13:32,237 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-23 16:13:36,863 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 16:13:36,975 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 16:13:36,976 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 16:13:37,115 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 16:13:38,113 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 16:13:38,329 INFO L217 Elim1Store]: Index analysis took 5914 ms [2022-11-23 16:13:38,330 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 16:13:38,331 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 16:13:38,331 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 16:13:38,332 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 16:13:38,333 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 16:13:38,334 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 16:13:38,334 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 16:13:38,335 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 16:13:38,336 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 16:13:38,337 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 16:13:38,339 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 13 stores, 0 select indices, 0 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 507 treesize of output 3942 [2022-11-23 16:13:38,650 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-23 16:13:39,958 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 16:13:43,558 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 16:13:43,938 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 16:13:44,648 INFO L217 Elim1Store]: Index analysis took 5728 ms [2022-11-23 16:13:44,649 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 16:13:44,650 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 16:13:44,651 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 16:13:44,652 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 16:13:44,653 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 16:13:44,654 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 16:13:44,655 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 16:13:44,655 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 16:13:44,656 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 16:13:44,657 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 16:13:44,659 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 13 stores, 0 select indices, 0 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 293 treesize of output 2247 [2022-11-23 16:13:45,072 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:13:45,123 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:13:45,124 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 100 treesize of output 54 [2022-11-23 16:13:46,327 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 16:13:46,435 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 16:13:46,692 INFO L217 Elim1Store]: Index analysis took 1433 ms [2022-11-23 16:13:46,696 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 16:13:46,697 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 16:13:46,697 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 16:13:46,698 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 16:13:46,699 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 16:13:46,700 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 16:13:46,700 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 16:13:46,701 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 16:13:46,702 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 16:13:46,706 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 16 stores, 0 select indices, 0 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 34295 treesize of output 38205 [2022-11-23 16:13:59,780 INFO L217 Elim1Store]: Index analysis took 8298 ms [2022-11-23 16:14:01,071 INFO L321 Elim1Store]: treesize reduction 538, result has 3.8 percent of original size [2022-11-23 16:14:01,071 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 13 stores, 1 select indices, 1 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 14 case distinctions, treesize of input 403 treesize of output 2354 [2022-11-23 16:14:01,492 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:14:01,492 INFO L217 Elim1Store]: Index analysis took 252 ms [2022-11-23 16:14:01,902 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-23 16:14:01,903 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 87 treesize of output 79 [2022-11-23 16:14:02,211 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:14:02,223 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:14:02,225 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 24 [2022-11-23 16:14:06,802 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 16:14:08,985 INFO L217 Elim1Store]: Index analysis took 6527 ms [2022-11-23 16:14:09,953 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 13 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 316 treesize of output 2350 [2022-11-23 16:14:10,322 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 16:14:11,166 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 16:14:11,749 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 16:14:18,230 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 16:14:19,044 INFO L217 Elim1Store]: Index analysis took 8722 ms [2022-11-23 16:14:19,046 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 16:14:19,047 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 16:14:19,048 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 16:14:19,049 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 16:14:19,050 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 16:14:19,051 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 16:14:19,052 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 16:14:19,053 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 16:14:19,055 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 16:14:19,056 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 16:14:19,058 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 13 stores, 1 select indices, 1 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 1409 treesize of output 3388 [2022-11-23 16:14:19,462 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:14:19,520 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:14:19,521 INFO L217 Elim1Store]: Index analysis took 243 ms [2022-11-23 16:14:19,986 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-23 16:14:19,987 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 1093 treesize of output 919 [2022-11-23 16:14:20,405 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-23 16:14:21,118 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 16:14:23,153 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 16:14:26,241 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 16:14:33,745 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 16:14:35,941 INFO L217 Elim1Store]: Index analysis took 14823 ms [2022-11-23 16:14:35,943 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 16:14:35,944 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 16:14:35,945 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 16:14:35,946 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 16:14:35,947 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 16:14:35,948 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 16:14:35,949 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 16:14:35,950 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 16:14:35,951 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 16:14:35,952 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 16:14:35,954 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 13 stores, 1 select indices, 1 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 573 treesize of output 2471 [2022-11-23 16:14:36,693 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:14:36,846 INFO L217 Elim1Store]: Index analysis took 358 ms [2022-11-23 16:14:37,610 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-23 16:14:37,611 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 257 treesize of output 221 [2022-11-23 16:14:38,017 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-23 16:14:39,273 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:14:39,388 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:14:39,805 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 16:14:41,580 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 16:14:41,595 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:14:41,605 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:14:41,797 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 16:14:42,198 INFO L217 Elim1Store]: Index analysis took 3956 ms [2022-11-23 16:14:42,199 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 16:14:42,200 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 16:14:42,201 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 16:14:42,201 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 16:14:42,202 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 16:14:42,203 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 16:14:42,204 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 16:14:42,204 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 16:14:42,205 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 16:14:42,206 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 16:14:42,209 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 13 stores, 1 select indices, 1 select index equivalence classes, 7 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 349 treesize of output 2287 [2022-11-23 16:14:42,392 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 21 [2022-11-23 16:14:42,836 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-23 16:16:01,645 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:16:03,987 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 16:16:04,390 INFO L217 Elim1Store]: Index analysis took 2665 ms [2022-11-23 16:16:04,543 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 15 stores, 1 select indices, 1 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 1905 treesize of output 16050 [2022-11-23 16:16:06,164 INFO L217 Elim1Store]: Index analysis took 531 ms [2022-11-23 16:18:04,126 WARN L233 SmtUtils]: Spent 1.96m on a formula simplification. DAG size of input: 222 DAG size of output: 42 (called from [L 318] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2022-11-23 16:18:04,129 INFO L321 Elim1Store]: treesize reduction 1365, result has 5.7 percent of original size [2022-11-23 16:18:04,135 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 38 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 33 new quantified variables, introduced 68 case distinctions, treesize of input 5645 treesize of output 94048