./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test4-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 9bd2c7ff 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_748611ca-a4f8-4067-9316-a48b07b6da62/bin/utaipan-verify-t7M7D8N6sZ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_748611ca-a4f8-4067-9316-a48b07b6da62/bin/utaipan-verify-t7M7D8N6sZ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_748611ca-a4f8-4067-9316-a48b07b6da62/bin/utaipan-verify-t7M7D8N6sZ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_748611ca-a4f8-4067-9316-a48b07b6da62/bin/utaipan-verify-t7M7D8N6sZ/config/TaipanReach.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test4-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_748611ca-a4f8-4067-9316-a48b07b6da62/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_748611ca-a4f8-4067-9316-a48b07b6da62/bin/utaipan-verify-t7M7D8N6sZ --witnessprinter.witness.filename witness --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 64683904124af3c899dbc8dc5465d8741c0ff10567af23b7315c834db1157458 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 04:56:08,022 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 04:56:08,090 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_748611ca-a4f8-4067-9316-a48b07b6da62/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-Reach-32bit-Taipan_Default.epf [2023-11-19 04:56:08,096 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 04:56:08,096 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 04:56:08,137 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 04:56:08,140 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 04:56:08,141 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 04:56:08,142 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 04:56:08,147 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 04:56:08,147 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-19 04:56:08,148 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-19 04:56:08,149 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-19 04:56:08,150 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-19 04:56:08,151 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-19 04:56:08,151 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-19 04:56:08,152 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-19 04:56:08,152 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-19 04:56:08,153 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-19 04:56:08,153 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-19 04:56:08,154 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-19 04:56:08,154 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-19 04:56:08,155 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 04:56:08,156 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 04:56:08,156 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 04:56:08,157 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 04:56:08,157 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 04:56:08,157 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 04:56:08,158 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 04:56:08,158 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 04:56:08,160 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 04:56:08,160 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 04:56:08,160 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 04:56:08,175 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 04:56:08,176 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 04:56:08,176 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 04:56:08,176 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 04:56:08,177 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 04:56:08,177 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 04:56:08,177 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 04:56:08,177 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-19 04:56:08,178 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 04:56:08,178 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 04:56:08,178 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-19 04:56:08,179 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 04:56:08,179 INFO L153 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_748611ca-a4f8-4067-9316-a48b07b6da62/bin/utaipan-verify-t7M7D8N6sZ/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_748611ca-a4f8-4067-9316-a48b07b6da62/bin/utaipan-verify-t7M7D8N6sZ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 64683904124af3c899dbc8dc5465d8741c0ff10567af23b7315c834db1157458 [2023-11-19 04:56:08,490 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 04:56:08,522 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 04:56:08,525 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 04:56:08,526 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 04:56:08,527 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 04:56:08,529 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_748611ca-a4f8-4067-9316-a48b07b6da62/bin/utaipan-verify-t7M7D8N6sZ/../../sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test4-2.i [2023-11-19 04:56:11,715 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 04:56:12,083 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 04:56:12,084 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_748611ca-a4f8-4067-9316-a48b07b6da62/sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test4-2.i [2023-11-19 04:56:12,119 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_748611ca-a4f8-4067-9316-a48b07b6da62/bin/utaipan-verify-t7M7D8N6sZ/data/b97ff9114/916d52d5ed694377bcc17535a2d7904d/FLAG0a83a4c61 [2023-11-19 04:56:12,137 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_748611ca-a4f8-4067-9316-a48b07b6da62/bin/utaipan-verify-t7M7D8N6sZ/data/b97ff9114/916d52d5ed694377bcc17535a2d7904d [2023-11-19 04:56:12,139 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 04:56:12,141 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 04:56:12,143 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 04:56:12,143 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 04:56:12,152 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 04:56:12,154 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 04:56:12" (1/1) ... [2023-11-19 04:56:12,155 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@56400150 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:56:12, skipping insertion in model container [2023-11-19 04:56:12,155 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 04:56:12" (1/1) ... [2023-11-19 04:56:12,251 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 04:56:12,708 WARN L240 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_748611ca-a4f8-4067-9316-a48b07b6da62/sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test4-2.i[33021,33034] [2023-11-19 04:56:12,933 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 04:56:12,986 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 04:56:13,082 WARN L240 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_748611ca-a4f8-4067-9316-a48b07b6da62/sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test4-2.i[33021,33034] [2023-11-19 04:56:13,194 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 04:56:13,238 INFO L206 MainTranslator]: Completed translation [2023-11-19 04:56:13,239 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:56:13 WrapperNode [2023-11-19 04:56:13,239 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 04:56:13,241 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 04:56:13,241 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 04:56:13,241 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 04:56:13,249 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:56:13" (1/1) ... [2023-11-19 04:56:13,289 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:56:13" (1/1) ... [2023-11-19 04:56:13,388 INFO L138 Inliner]: procedures = 177, calls = 400, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 1657 [2023-11-19 04:56:13,400 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 04:56:13,401 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 04:56:13,401 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 04:56:13,401 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 04:56:13,412 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:56:13" (1/1) ... [2023-11-19 04:56:13,413 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:56:13" (1/1) ... [2023-11-19 04:56:13,445 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:56:13" (1/1) ... [2023-11-19 04:56:13,445 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:56:13" (1/1) ... [2023-11-19 04:56:13,556 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:56:13" (1/1) ... [2023-11-19 04:56:13,586 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:56:13" (1/1) ... [2023-11-19 04:56:13,602 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:56:13" (1/1) ... [2023-11-19 04:56:13,611 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:56:13" (1/1) ... [2023-11-19 04:56:13,636 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 04:56:13,637 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 04:56:13,638 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 04:56:13,638 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 04:56:13,639 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:56:13" (1/1) ... [2023-11-19 04:56:13,647 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 04:56:13,660 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_748611ca-a4f8-4067-9316-a48b07b6da62/bin/utaipan-verify-t7M7D8N6sZ/z3 [2023-11-19 04:56:13,685 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_748611ca-a4f8-4067-9316-a48b07b6da62/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 04:56:13,717 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_748611ca-a4f8-4067-9316-a48b07b6da62/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 04:56:13,726 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-19 04:56:13,727 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-11-19 04:56:13,727 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-11-19 04:56:13,727 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-19 04:56:13,727 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2023-11-19 04:56:13,727 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2023-11-19 04:56:13,729 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-19 04:56:13,729 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 04:56:13,730 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-19 04:56:13,730 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-19 04:56:13,730 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-19 04:56:13,730 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-19 04:56:13,730 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 04:56:13,730 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 04:56:13,731 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 04:56:14,046 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 04:56:14,049 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 04:56:17,482 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 04:56:19,643 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 04:56:19,644 INFO L302 CfgBuilder]: Removed 69 assume(true) statements. [2023-11-19 04:56:19,657 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:56:19 BoogieIcfgContainer [2023-11-19 04:56:19,657 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 04:56:19,662 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 04:56:19,662 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 04:56:19,667 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 04:56:19,668 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 04:56:12" (1/3) ... [2023-11-19 04:56:19,669 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@572f1729 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 04:56:19, skipping insertion in model container [2023-11-19 04:56:19,669 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:56:13" (2/3) ... [2023-11-19 04:56:19,672 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@572f1729 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 04:56:19, skipping insertion in model container [2023-11-19 04:56:19,672 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:56:19" (3/3) ... [2023-11-19 04:56:19,674 INFO L112 eAbstractionObserver]: Analyzing ICFG uthash_SFH_test4-2.i [2023-11-19 04:56:19,698 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 04:56:19,699 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-19 04:56:19,784 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 04:56:19,794 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=LoopHeads, 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;@2dbf86f1, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-19 04:56:19,795 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-19 04:56:19,802 INFO L276 IsEmpty]: Start isEmpty. Operand has 150 states, 130 states have (on average 1.7384615384615385) internal successors, (226), 141 states have internal predecessors, (226), 16 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 7 states have call predecessors, (16), 16 states have call successors, (16) [2023-11-19 04:56:19,812 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-11-19 04:56:19,813 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:56:19,813 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 04:56:19,814 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 04:56:19,822 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:56:19,823 INFO L85 PathProgramCache]: Analyzing trace with hash -852981924, now seen corresponding path program 1 times [2023-11-19 04:56:19,835 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 04:56:19,835 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1918136285] [2023-11-19 04:56:19,836 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:56:19,836 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:56:20,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:56:20,175 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 04:56:20,176 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 04:56:20,176 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1918136285] [2023-11-19 04:56:20,177 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1918136285] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 04:56:20,178 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 04:56:20,178 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 04:56:20,180 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [893694951] [2023-11-19 04:56:20,181 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 04:56:20,187 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 04:56:20,188 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 04:56:20,230 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 04:56:20,231 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 04:56:20,238 INFO L87 Difference]: Start difference. First operand has 150 states, 130 states have (on average 1.7384615384615385) internal successors, (226), 141 states have internal predecessors, (226), 16 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 7 states have call predecessors, (16), 16 states have call successors, (16) Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 2 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 04:56:22,304 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-19 04:56:24,321 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-19 04:56:26,424 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-19 04:56:28,437 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-19 04:56:30,541 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-19 04:56:32,551 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-19 04:56:34,571 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-19 04:56:36,743 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-19 04:56:38,758 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-19 04:56:40,242 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 04:56:40,242 INFO L93 Difference]: Finished difference Result 352 states and 621 transitions. [2023-11-19 04:56:40,250 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 04:56:40,251 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 2 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2023-11-19 04:56:40,252 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 04:56:40,263 INFO L225 Difference]: With dead ends: 352 [2023-11-19 04:56:40,264 INFO L226 Difference]: Without dead ends: 132 [2023-11-19 04:56:40,270 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 04:56:40,274 INFO L413 NwaCegarLoop]: 161 mSDtfsCounter, 102 mSDsluCounter, 112 mSDsCounter, 0 mSdLazyCounter, 57 mSolverCounterSat, 4 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 19.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 108 SdHoareTripleChecker+Valid, 273 SdHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 57 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 19.9s IncrementalHoareTripleChecker+Time [2023-11-19 04:56:40,276 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [108 Valid, 273 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 57 Invalid, 5 Unknown, 0 Unchecked, 19.9s Time] [2023-11-19 04:56:40,300 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 132 states. [2023-11-19 04:56:40,338 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 132 to 132. [2023-11-19 04:56:40,340 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 132 states, 113 states have (on average 1.1858407079646018) internal successors, (134), 123 states have internal predecessors, (134), 16 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 7 states have call predecessors, (16), 16 states have call successors, (16) [2023-11-19 04:56:40,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 132 states and 166 transitions. [2023-11-19 04:56:40,345 INFO L78 Accepts]: Start accepts. Automaton has 132 states and 166 transitions. Word has length 8 [2023-11-19 04:56:40,346 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 04:56:40,346 INFO L495 AbstractCegarLoop]: Abstraction has 132 states and 166 transitions. [2023-11-19 04:56:40,346 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 2 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 04:56:40,347 INFO L276 IsEmpty]: Start isEmpty. Operand 132 states and 166 transitions. [2023-11-19 04:56:40,352 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2023-11-19 04:56:40,352 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:56:40,352 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 04:56:40,353 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-19 04:56:40,353 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 04:56:40,354 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:56:40,354 INFO L85 PathProgramCache]: Analyzing trace with hash 1098039702, now seen corresponding path program 1 times [2023-11-19 04:56:40,355 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 04:56:40,355 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1300737743] [2023-11-19 04:56:40,355 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:56:40,356 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:56:40,534 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-19 04:56:40,534 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [865797253] [2023-11-19 04:56:40,534 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:56:40,535 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 04:56:40,535 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_748611ca-a4f8-4067-9316-a48b07b6da62/bin/utaipan-verify-t7M7D8N6sZ/z3 [2023-11-19 04:56:40,539 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_748611ca-a4f8-4067-9316-a48b07b6da62/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 04:56:40,543 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_748611ca-a4f8-4067-9316-a48b07b6da62/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-19 04:56:41,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:56:41,254 INFO L262 TraceCheckSpWp]: Trace formula consists of 538 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-19 04:56:41,265 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 04:56:41,447 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 04:56:41,447 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 04:56:41,601 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 04:56:41,602 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 04:56:41,602 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1300737743] [2023-11-19 04:56:41,603 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-19 04:56:41,603 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [865797253] [2023-11-19 04:56:41,603 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [865797253] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-19 04:56:41,604 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1911613601] [2023-11-19 04:56:41,633 INFO L159 IcfgInterpreter]: Started Sifa with 60 locations of interest [2023-11-19 04:56:41,634 INFO L166 IcfgInterpreter]: Building call graph [2023-11-19 04:56:41,639 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-11-19 04:56:41,646 INFO L176 IcfgInterpreter]: Starting interpretation [2023-11-19 04:56:41,646 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-11-19 04:56:48,377 INFO L180 IcfgInterpreter]: Interpretation finished [2023-11-19 04:57:00,361 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [1911613601] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 04:57:00,362 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2023-11-19 04:57:00,362 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [3, 3] total 12 [2023-11-19 04:57:00,363 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1986492900] [2023-11-19 04:57:00,363 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 04:57:00,364 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-19 04:57:00,364 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 04:57:00,365 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-19 04:57:00,365 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=82, Unknown=5, NotChecked=0, Total=156 [2023-11-19 04:57:00,366 INFO L87 Difference]: Start difference. First operand 132 states and 166 transitions. Second operand has 9 states, 9 states have (on average 6.555555555555555) internal successors, (59), 8 states have internal predecessors, (59), 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) [2023-11-19 04:57:02,410 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2023-11-19 04:57:04,707 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-19 04:57:06,971 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-19 04:57:09,237 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-19 04:57:11,630 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-19 04:57:13,738 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.10s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0]